Perdoceo Education Corp NASDAQ:PRDO Historical Prices

Below are the 6555 trading days of historical prices for PRDO.

#	Exchange	Symbol	Date	Open	High	Low	Close
6555	NASDAQ	PRDO	Thu, Mar 21, 2024	17.78	17.94	17.57	17.90
6554	NASDAQ	PRDO	Wed, Mar 20, 2024	17.35	17.79	17.00	17.77
6553	NASDAQ	PRDO	Tue, Mar 19, 2024	17.49	17.50	17.12	17.34
6552	NASDAQ	PRDO	Mon, Mar 18, 2024	17.64	17.78	17.40	17.40
6551	NASDAQ	PRDO	Fri, Mar 15, 2024	17.57	17.73	17.49	17.65
6550	NASDAQ	PRDO	Thu, Mar 14, 2024	17.67	17.73	17.46	17.70
6549	NASDAQ	PRDO	Wed, Mar 13, 2024	17.57	17.86	17.54	17.75
6548	NASDAQ	PRDO	Tue, Mar 12, 2024	17.59	17.74	17.44	17.52
6547	NASDAQ	PRDO	Mon, Mar 11, 2024	17.77	17.92	17.52	17.65
6546	NASDAQ	PRDO	Fri, Mar 8, 2024	17.60	17.66	17.26	17.55
6545	NASDAQ	PRDO	Thu, Mar 7, 2024	17.55	17.57	17.28	17.46
6544	NASDAQ	PRDO	Wed, Mar 6, 2024	17.41	17.67	17.28	17.51
6543	NASDAQ	PRDO	Tue, Mar 5, 2024	17.67	17.76	17.24	17.26
6542	NASDAQ	PRDO	Mon, Mar 4, 2024	17.58	17.93	17.32	17.59
6541	NASDAQ	PRDO	Fri, Mar 1, 2024	17.81	17.87	17.41	17.53
6540	NASDAQ	PRDO	Thu, Feb 29, 2024	17.63	17.91	17.57	17.81
6539	NASDAQ	PRDO	Wed, Feb 28, 2024	17.42	17.78	17.34	17.61
6538	NASDAQ	PRDO	Tue, Feb 27, 2024	17.81	17.81	17.06	17.38
6537	NASDAQ	PRDO	Mon, Feb 26, 2024	17.39	18.10	17.34	17.78
6536	NASDAQ	PRDO	Fri, Feb 23, 2024	17.04	17.45	16.84	17.43
6535	NASDAQ	PRDO	Thu, Feb 22, 2024	17.03	17.45	16.12	17.04
6534	NASDAQ	PRDO	Wed, Feb 21, 2024	17.23	17.44	16.89	16.98
6533	NASDAQ	PRDO	Tue, Feb 20, 2024	17.58	17.58	17.09	17.16
6532	NASDAQ	PRDO	Fri, Feb 16, 2024	17.68	17.85	17.52	17.52
6531	NASDAQ	PRDO	Thu, Feb 15, 2024	17.81	17.91	17.49	17.69
6530	NASDAQ	PRDO	Wed, Feb 14, 2024	17.89	17.95	17.66	17.83
6529	NASDAQ	PRDO	Tue, Feb 13, 2024	18.04	18.21	17.67	17.77
6528	NASDAQ	PRDO	Mon, Feb 12, 2024	18.07	18.35	18.06	18.21
6527	NASDAQ	PRDO	Fri, Feb 9, 2024	17.69	18.09	17.52	18.07
6526	NASDAQ	PRDO	Thu, Feb 8, 2024	17.45	17.74	17.45	17.72
6525	NASDAQ	PRDO	Wed, Feb 7, 2024	17.29	17.70	17.14	17.45
6524	NASDAQ	PRDO	Tue, Feb 6, 2024	17.71	17.83	17.33	17.36
6523	NASDAQ	PRDO	Mon, Feb 5, 2024	17.98	18.01	17.48	17.80
6522	NASDAQ	PRDO	Fri, Feb 2, 2024	18.13	18.51	17.96	18.01
6521	NASDAQ	PRDO	Thu, Feb 1, 2024	18.12	18.51	18.12	18.43
6520	NASDAQ	PRDO	Wed, Jan 31, 2024	18.01	18.25	17.95	18.10
6519	NASDAQ	PRDO	Tue, Jan 30, 2024	18.01	18.04	17.48	17.99
6518	NASDAQ	PRDO	Mon, Jan 29, 2024	18.50	18.57	17.96	18.17
6517	NASDAQ	PRDO	Fri, Jan 26, 2024	18.50	18.68	18.34	18.57
6516	NASDAQ	PRDO	Thu, Jan 25, 2024	18.50	18.81	18.32	18.54
6515	NASDAQ	PRDO	Wed, Jan 24, 2024	18.50	18.55	18.34	18.53
6514	NASDAQ	PRDO	Tue, Jan 23, 2024	18.37	18.52	18.14	18.35
6513	NASDAQ	PRDO	Mon, Jan 22, 2024	17.67	18.28	17.57	18.23
6512	NASDAQ	PRDO	Fri, Jan 19, 2024	17.65	17.65	17.29	17.56
6511	NASDAQ	PRDO	Thu, Jan 18, 2024	17.63	17.67	17.34	17.53
6510	NASDAQ	PRDO	Wed, Jan 17, 2024	17.47	17.75	17.46	17.53
6509	NASDAQ	PRDO	Tue, Jan 16, 2024	17.31	17.75	17.31	17.61
6508	NASDAQ	PRDO	Fri, Jan 12, 2024	17.15	17.35	17.10	17.31
6507	NASDAQ	PRDO	Thu, Jan 11, 2024	16.98	17.17	16.76	17.15
6506	NASDAQ	PRDO	Wed, Jan 10, 2024	16.86	17.12	16.81	16.99
6505	NASDAQ	PRDO	Tue, Jan 9, 2024	17.16	17.30	16.79	16.96
6504	NASDAQ	PRDO	Mon, Jan 8, 2024	17.25	17.30	16.96	17.26
6503	NASDAQ	PRDO	Fri, Jan 5, 2024	17.68	17.81	17.17	17.19
6502	NASDAQ	PRDO	Thu, Jan 4, 2024	17.76	18.04	17.51	17.80
6501	NASDAQ	PRDO	Wed, Jan 3, 2024	17.93	18.16	17.61	17.63
6500	NASDAQ	PRDO	Tue, Jan 2, 2024	17.56	18.15	17.53	17.93
6499	NASDAQ	PRDO	Fri, Dec 29, 2023	17.65	17.71	17.45	17.56
6498	NASDAQ	PRDO	Thu, Dec 28, 2023	17.97	18.08	17.69	17.72
6497	NASDAQ	PRDO	Wed, Dec 27, 2023	17.80	18.10	17.79	17.95
6496	NASDAQ	PRDO	Tue, Dec 26, 2023	17.69	17.84	17.48	17.80
6495	NASDAQ	PRDO	Fri, Dec 22, 2023	17.67	17.78	17.48	17.68
6494	NASDAQ	PRDO	Thu, Dec 21, 2023	17.51	17.68	17.48	17.67
6493	NASDAQ	PRDO	Wed, Dec 20, 2023	17.37	17.83	17.19	17.45
6492	NASDAQ	PRDO	Tue, Dec 19, 2023	16.96	17.40	16.93	17.25
6491	NASDAQ	PRDO	Mon, Dec 18, 2023	17.07	17.20	16.89	16.93
6490	NASDAQ	PRDO	Fri, Dec 15, 2023	17.24	17.24	16.71	16.92
6489	NASDAQ	PRDO	Thu, Dec 14, 2023	17.70	17.72	16.61	17.11
6488	NASDAQ	PRDO	Wed, Dec 13, 2023	18.03	18.03	17.46	17.74
6487	NASDAQ	PRDO	Tue, Dec 12, 2023	18.01	18.18	17.86	18.09
6486	NASDAQ	PRDO	Mon, Dec 11, 2023	18.43	18.45	17.83	18.01
6485	NASDAQ	PRDO	Fri, Dec 8, 2023	18.43	18.63	18.25	18.39
6484	NASDAQ	PRDO	Thu, Dec 7, 2023	18.06	18.46	17.95	18.45
6483	NASDAQ	PRDO	Wed, Dec 6, 2023	17.93	18.19	17.88	17.99
6482	NASDAQ	PRDO	Tue, Dec 5, 2023	17.68	17.99	17.52	17.82
6481	NASDAQ	PRDO	Mon, Dec 4, 2023	17.45	17.88	17.45	17.68
6480	NASDAQ	PRDO	Fri, Dec 1, 2023	17.38	17.61	17.10	17.49
6479	NASDAQ	PRDO	Thu, Nov 30, 2023	17.44	17.57	17.30	17.42
6478	NASDAQ	PRDO	Wed, Nov 29, 2023	17.42	17.70	17.37	17.44
6477	NASDAQ	PRDO	Tue, Nov 28, 2023	17.41	17.53	17.32	17.39
6476	NASDAQ	PRDO	Mon, Nov 27, 2023	17.50	17.64	17.36	17.45
6475	NASDAQ	PRDO	Fri, Nov 24, 2023	17.43	17.77	17.42	17.53
6474	NASDAQ	PRDO	Wed, Nov 22, 2023	16.90	17.48	16.90	17.36
6473	NASDAQ	PRDO	Tue, Nov 21, 2023	16.95	17.04	16.72	16.84
6472	NASDAQ	PRDO	Mon, Nov 20, 2023	17.53	17.62	16.83	16.94
6471	NASDAQ	PRDO	Fri, Nov 17, 2023	18.10	18.39	17.97	18.09
6470	NASDAQ	PRDO	Thu, Nov 16, 2023	17.72	18.07	17.41	18.07
6469	NASDAQ	PRDO	Wed, Nov 15, 2023	17.59	17.88	17.52	17.70
6468	NASDAQ	PRDO	Tue, Nov 14, 2023	17.33	17.66	17.27	17.66
6467	NASDAQ	PRDO	Mon, Nov 13, 2023	17.15	17.36	16.99	17.11
6466	NASDAQ	PRDO	Fri, Nov 10, 2023	17.17	17.31	17.07	17.21
6465	NASDAQ	PRDO	Thu, Nov 9, 2023	17.07	17.31	16.92	17.14
6464	NASDAQ	PRDO	Wed, Nov 8, 2023	17.07	17.07	16.72	17.06
6463	NASDAQ	PRDO	Tue, Nov 7, 2023	17.16	17.16	16.82	16.85
6462	NASDAQ	PRDO	Mon, Nov 6, 2023	17.62	17.64	16.99	17.23
6461	NASDAQ	PRDO	Fri, Nov 3, 2023	18.24	19.62	16.57	17.51
6460	NASDAQ	PRDO	Thu, Nov 2, 2023	18.23	18.56	18.11	18.53
6459	NASDAQ	PRDO	Wed, Nov 1, 2023	18.09	18.29	18.06	18.16
6458	NASDAQ	PRDO	Tue, Oct 31, 2023	18.09	18.18	17.91	18.09
6457	NASDAQ	PRDO	Mon, Oct 30, 2023	18.08	18.36	17.94	18.08
6456	NASDAQ	PRDO	Fri, Oct 27, 2023	17.83	18.03	17.75	17.91
6455	NASDAQ	PRDO	Thu, Oct 26, 2023	18.04	18.07	17.60	17.72
6454	NASDAQ	PRDO	Wed, Oct 25, 2023	17.76	18.14	17.76	17.95
6453	NASDAQ	PRDO	Tue, Oct 24, 2023	17.55	17.94	17.55	17.78
6452	NASDAQ	PRDO	Mon, Oct 23, 2023	17.81	17.93	17.45	17.50
6451	NASDAQ	PRDO	Fri, Oct 20, 2023	17.83	18.05	17.53	17.86
6450	NASDAQ	PRDO	Thu, Oct 19, 2023	18.33	18.33	17.65	17.76
6449	NASDAQ	PRDO	Wed, Oct 18, 2023	17.84	18.58	17.84	18.30
6448	NASDAQ	PRDO	Tue, Oct 17, 2023	17.80	18.07	17.80	17.88
6447	NASDAQ	PRDO	Mon, Oct 16, 2023	17.60	17.82	17.59	17.77
6446	NASDAQ	PRDO	Fri, Oct 13, 2023	17.60	17.65	17.38	17.46
6445	NASDAQ	PRDO	Thu, Oct 12, 2023	17.91	17.98	17.44	17.63
6444	NASDAQ	PRDO	Wed, Oct 11, 2023	17.75	18.04	17.74	17.90
6443	NASDAQ	PRDO	Tue, Oct 10, 2023	17.59	17.93	17.55	17.70
6442	NASDAQ	PRDO	Mon, Oct 9, 2023	17.30	17.70	17.30	17.60
6441	NASDAQ	PRDO	Fri, Oct 6, 2023	17.41	17.53	17.30	17.37
6440	NASDAQ	PRDO	Thu, Oct 5, 2023	17.35	17.75	17.35	17.43
6439	NASDAQ	PRDO	Wed, Oct 4, 2023	17.41	17.60	17.23	17.35
6438	NASDAQ	PRDO	Tue, Oct 3, 2023	17.36	17.53	17.26	17.42
6437	NASDAQ	PRDO	Mon, Oct 2, 2023	17.11	17.50	17.08	17.41
6436	NASDAQ	PRDO	Fri, Sep 29, 2023	17.43	17.49	17.08	17.10
6435	NASDAQ	PRDO	Thu, Sep 28, 2023	17.68	17.75	17.34	17.41
6434	NASDAQ	PRDO	Wed, Sep 27, 2023	17.44	17.75	17.40	17.64
6433	NASDAQ	PRDO	Tue, Sep 26, 2023	17.32	17.45	17.21	17.27
6432	NASDAQ	PRDO	Mon, Sep 25, 2023	16.92	17.40	16.92	17.36
6431	NASDAQ	PRDO	Fri, Sep 22, 2023	16.72	17.12	16.68	16.91
6430	NASDAQ	PRDO	Thu, Sep 21, 2023	16.45	16.72	16.38	16.68
6429	NASDAQ	PRDO	Wed, Sep 20, 2023	16.50	16.70	16.50	16.52
6428	NASDAQ	PRDO	Tue, Sep 19, 2023	16.34	16.55	16.26	16.45
6427	NASDAQ	PRDO	Mon, Sep 18, 2023	16.47	16.61	16.26	16.35
6426	NASDAQ	PRDO	Fri, Sep 15, 2023	16.58	16.76	16.30	16.43
6425	NASDAQ	PRDO	Thu, Sep 14, 2023	16.98	17.12	16.60	16.62
6424	NASDAQ	PRDO	Wed, Sep 13, 2023	16.73	16.93	16.53	16.80
6423	NASDAQ	PRDO	Tue, Sep 12, 2023	16.69	17.02	16.63	16.65
6422	NASDAQ	PRDO	Mon, Sep 11, 2023	16.71	16.71	16.71	16.71
6421	NASDAQ	PRDO	Fri, Sep 8, 2023	16.08	16.34	16.01	16.26
6420	NASDAQ	PRDO	Thu, Sep 7, 2023	16.22	16.24	15.94	16.00
6419	NASDAQ	PRDO	Wed, Sep 6, 2023	16.43	16.56	16.12	16.25
6418	NASDAQ	PRDO	Tue, Sep 5, 2023	17.31	17.31	16.05	16.36
6417	NASDAQ	PRDO	Fri, Sep 1, 2023	16.67	17.49	16.57	17.39
6416	NASDAQ	PRDO	Thu, Aug 31, 2023	16.32	16.64	16.24	16.57
6415	NASDAQ	PRDO	Wed, Aug 30, 2023	16.36	16.48	16.29	16.36
6414	NASDAQ	PRDO	Tue, Aug 29, 2023	16.39	16.57	16.33	16.38
6413	NASDAQ	PRDO	Mon, Aug 28, 2023	16.39	16.54	16.34	16.39
6412	NASDAQ	PRDO	Fri, Aug 25, 2023	16.03	16.49	16.03	16.34
6411	NASDAQ	PRDO	Thu, Aug 24, 2023	16.11	16.27	16.01	16.02
6410	NASDAQ	PRDO	Wed, Aug 23, 2023	16.10	16.24	15.95	16.11
6409	NASDAQ	PRDO	Tue, Aug 22, 2023	16.15	16.19	16.00	16.10
6408	NASDAQ	PRDO	Mon, Aug 21, 2023	16.01	16.21	15.79	16.13
6407	NASDAQ	PRDO	Fri, Aug 18, 2023	16.00	16.28	15.88	16.01
6406	NASDAQ	PRDO	Thu, Aug 17, 2023	16.11	16.25	16.01	16.10
6405	NASDAQ	PRDO	Wed, Aug 16, 2023	16.36	16.75	15.98	16.01
6404	NASDAQ	PRDO	Tue, Aug 15, 2023	16.50	16.87	16.27	16.39
6403	NASDAQ	PRDO	Mon, Aug 14, 2023	16.68	16.88	16.50	16.56
6402	NASDAQ	PRDO	Fri, Aug 11, 2023	16.45	17.06	16.45	16.68
6401	NASDAQ	PRDO	Thu, Aug 10, 2023	16.76	16.94	16.59	16.63
6400	NASDAQ	PRDO	Wed, Aug 9, 2023	16.70	16.71	16.31	16.66
6399	NASDAQ	PRDO	Tue, Aug 8, 2023	16.93	17.05	16.50	16.73
6398	NASDAQ	PRDO	Mon, Aug 7, 2023	16.02	17.02	16.02	16.99
6397	NASDAQ	PRDO	Fri, Aug 4, 2023	15.75	16.60	15.71	15.93
6396	NASDAQ	PRDO	Thu, Aug 3, 2023	13.75	14.06	13.75	13.94
6395	NASDAQ	PRDO	Wed, Aug 2, 2023	13.69	14.05	13.69	13.86
6394	NASDAQ	PRDO	Tue, Aug 1, 2023	13.35	13.75	13.31	13.74
6393	NASDAQ	PRDO	Mon, Jul 31, 2023	13.11	13.40	13.11	13.35
6392	NASDAQ	PRDO	Fri, Jul 28, 2023	12.96	13.14	12.96	13.11
6391	NASDAQ	PRDO	Thu, Jul 27, 2023	13.06	13.14	12.92	12.93
6390	NASDAQ	PRDO	Wed, Jul 26, 2023	13.03	13.17	13.00	13.03
6389	NASDAQ	PRDO	Tue, Jul 25, 2023	13.05	13.13	13.01	13.05
6388	NASDAQ	PRDO	Mon, Jul 24, 2023	13.05	13.17	12.95	13.14
6387	NASDAQ	PRDO	Fri, Jul 21, 2023	13.03	13.14	12.95	13.02
6386	NASDAQ	PRDO	Thu, Jul 20, 2023	13.18	13.21	12.90	12.95
6385	NASDAQ	PRDO	Wed, Jul 19, 2023	12.96	13.14	12.93	13.11
6384	NASDAQ	PRDO	Tue, Jul 18, 2023	12.75	12.99	12.75	12.96
6383	NASDAQ	PRDO	Mon, Jul 17, 2023	12.64	12.84	12.57	12.75
6382	NASDAQ	PRDO	Fri, Jul 14, 2023	12.54	12.70	12.30	12.70
6381	NASDAQ	PRDO	Thu, Jul 13, 2023	12.60	12.64	12.49	12.56
6380	NASDAQ	PRDO	Wed, Jul 12, 2023	12.77	12.78	12.56	12.65
6379	NASDAQ	PRDO	Tue, Jul 11, 2023	12.50	12.65	12.45	12.64
6378	NASDAQ	PRDO	Mon, Jul 10, 2023	12.39	12.65	12.39	12.50
6377	NASDAQ	PRDO	Fri, Jul 7, 2023	12.24	12.68	12.24	12.42
6376	NASDAQ	PRDO	Thu, Jul 6, 2023	12.36	12.48	12.01	12.18
6375	NASDAQ	PRDO	Wed, Jul 5, 2023	12.10	12.55	11.88	12.49
6374	NASDAQ	PRDO	Mon, Jul 3, 2023	12.27	12.40	12.05	12.10
6373	NASDAQ	PRDO	Fri, Jun 30, 2023	12.33	12.39	12.19	12.27
6372	NASDAQ	PRDO	Thu, Jun 29, 2023	12.13	12.27	12.09	12.27
6371	NASDAQ	PRDO	Wed, Jun 28, 2023	12.15	12.15	11.94	12.09
6370	NASDAQ	PRDO	Tue, Jun 27, 2023	12.13	12.26	12.03	12.15
6369	NASDAQ	PRDO	Mon, Jun 26, 2023	12.10	12.45	12.09	12.12
6368	NASDAQ	PRDO	Fri, Jun 23, 2023	12.25	12.51	12.11	12.18
6367	NASDAQ	PRDO	Thu, Jun 22, 2023	12.53	12.53	11.85	12.36
6366	NASDAQ	PRDO	Wed, Jun 21, 2023	12.45	12.61	12.35	12.53
6365	NASDAQ	PRDO	Tue, Jun 20, 2023	12.52	12.67	12.31	12.49
6364	NASDAQ	PRDO	Fri, Jun 16, 2023	12.75	12.75	12.45	12.55
6363	NASDAQ	PRDO	Thu, Jun 15, 2023	12.37	12.76	12.12	12.67
6362	NASDAQ	PRDO	Wed, Jun 14, 2023	12.56	12.63	12.25	12.40
6361	NASDAQ	PRDO	Tue, Jun 13, 2023	12.42	12.67	12.36	12.59
6360	NASDAQ	PRDO	Mon, Jun 12, 2023	12.40	12.45	12.25	12.42
6359	NASDAQ	PRDO	Fri, Jun 9, 2023	12.61	12.66	12.32	12.38
6358	NASDAQ	PRDO	Thu, Jun 8, 2023	12.64	12.64	12.39	12.56
6357	NASDAQ	PRDO	Wed, Jun 7, 2023	12.36	12.73	12.25	12.69
6356	NASDAQ	PRDO	Tue, Jun 6, 2023	12.00	12.41	11.86	12.35
6355	NASDAQ	PRDO	Mon, Jun 5, 2023	12.35	12.35	11.88	12.04
6354	NASDAQ	PRDO	Fri, Jun 2, 2023	12.07	12.48	11.99	12.46
6353	NASDAQ	PRDO	Thu, Jun 1, 2023	11.78	11.99	11.62	11.95
6352	NASDAQ	PRDO	Wed, May 31, 2023	11.87	11.94	11.64	11.79
6351	NASDAQ	PRDO	Tue, May 30, 2023	11.90	11.95	11.64	11.87
6350	NASDAQ	PRDO	Fri, May 26, 2023	11.98	12.04	11.87	11.93
6349	NASDAQ	PRDO	Thu, May 25, 2023	12.16	12.28	11.91	12.01
6348	NASDAQ	PRDO	Wed, May 24, 2023	12.26	12.37	12.18	12.21
6347	NASDAQ	PRDO	Tue, May 23, 2023	12.26	12.40	12.15	12.29
6346	NASDAQ	PRDO	Mon, May 22, 2023	12.43	12.45	12.12	12.30
6345	NASDAQ	PRDO	Fri, May 19, 2023	12.38	12.55	12.31	12.39
6344	NASDAQ	PRDO	Thu, May 18, 2023	12.13	12.38	12.05	12.25
6343	NASDAQ	PRDO	Wed, May 17, 2023	11.95	12.18	11.78	12.16
6342	NASDAQ	PRDO	Tue, May 16, 2023	11.92	12.01	11.75	11.92
6341	NASDAQ	PRDO	Mon, May 15, 2023	11.89	11.95	11.66	11.90
6340	NASDAQ	PRDO	Fri, May 12, 2023	12.00	12.05	11.80	11.91
6339	NASDAQ	PRDO	Thu, May 11, 2023	12.01	12.18	11.82	11.97
6338	NASDAQ	PRDO	Wed, May 10, 2023	12.23	12.37	11.95	12.06
6337	NASDAQ	PRDO	Tue, May 9, 2023	12.08	12.22	11.94	12.07
6336	NASDAQ	PRDO	Mon, May 8, 2023	11.91	12.31	11.91	12.12
6335	NASDAQ	PRDO	Fri, May 5, 2023	12.70	12.80	11.50	11.81
6334	NASDAQ	PRDO	Thu, May 4, 2023	12.29	12.33	11.94	12.32
6333	NASDAQ	PRDO	Wed, May 3, 2023	12.50	12.89	12.43	12.44
6332	NASDAQ	PRDO	Tue, May 2, 2023	13.00	13.11	12.23	12.44
6331	NASDAQ	PRDO	Mon, May 1, 2023	12.96	13.35	12.94	13.20
6330	NASDAQ	PRDO	Fri, Apr 28, 2023	13.14	13.27	12.95	12.98
6329	NASDAQ	PRDO	Thu, Apr 27, 2023	13.23	13.36	12.95	13.17
6328	NASDAQ	PRDO	Wed, Apr 26, 2023	13.12	13.27	13.02	13.23
6327	NASDAQ	PRDO	Tue, Apr 25, 2023	13.20	13.46	13.14	13.20
6326	NASDAQ	PRDO	Mon, Apr 24, 2023	13.36	13.40	13.14	13.20
6325	NASDAQ	PRDO	Fri, Apr 21, 2023	13.41	13.48	13.29	13.42
6324	NASDAQ	PRDO	Thu, Apr 20, 2023	13.08	13.44	13.00	13.41
6323	NASDAQ	PRDO	Wed, Apr 19, 2023	13.03	13.17	13.01	13.12
6322	NASDAQ	PRDO	Tue, Apr 18, 2023	13.36	13.40	12.94	13.03
6321	NASDAQ	PRDO	Mon, Apr 17, 2023	13.57	13.58	13.29	13.33
6320	NASDAQ	PRDO	Fri, Apr 14, 2023	13.55	13.67	13.39	13.55
6319	NASDAQ	PRDO	Thu, Apr 13, 2023	13.50	13.68	13.43	13.62
6318	NASDAQ	PRDO	Wed, Apr 12, 2023	13.47	13.58	13.41	13.49
6317	NASDAQ	PRDO	Tue, Apr 11, 2023	13.37	13.60	13.30	13.43
6316	NASDAQ	PRDO	Mon, Apr 10, 2023	13.21	13.42	13.17	13.35
6315	NASDAQ	PRDO	Thu, Apr 6, 2023	13.22	13.34	13.12	13.19
6314	NASDAQ	PRDO	Wed, Apr 5, 2023	13.14	13.24	13.06	13.22
6313	NASDAQ	PRDO	Tue, Apr 4, 2023	13.38	13.38	12.98	13.17
6312	NASDAQ	PRDO	Mon, Apr 3, 2023	13.46	13.58	13.27	13.41
6311	NASDAQ	PRDO	Fri, Mar 31, 2023	13.05	13.50	13.01	13.43
6310	NASDAQ	PRDO	Thu, Mar 30, 2023	12.96	13.04	12.87	12.99
6309	NASDAQ	PRDO	Wed, Mar 29, 2023	13.34	13.36	12.91	12.95
6308	NASDAQ	PRDO	Tue, Mar 28, 2023	13.24	13.37	13.07	13.29
6307	NASDAQ	PRDO	Mon, Mar 27, 2023	13.06	13.31	13.06	13.26
6306	NASDAQ	PRDO	Fri, Mar 24, 2023	12.72	13.07	12.70	12.98
6305	NASDAQ	PRDO	Thu, Mar 23, 2023	13.11	13.12	12.75	12.84
6304	NASDAQ	PRDO	Wed, Mar 22, 2023	13.37	13.51	13.10	13.11
6303	NASDAQ	PRDO	Tue, Mar 21, 2023	13.42	13.55	13.20	13.42
6302	NASDAQ	PRDO	Mon, Mar 20, 2023	13.17	13.40	13.01	13.30
6301	NASDAQ	PRDO	Fri, Mar 17, 2023	13.35	13.36	12.95	13.02
6300	NASDAQ	PRDO	Thu, Mar 16, 2023	13.04	13.41	12.81	13.37
6299	NASDAQ	PRDO	Wed, Mar 15, 2023	13.05	13.20	12.89	13.18
6298	NASDAQ	PRDO	Tue, Mar 14, 2023	13.43	13.69	13.21	13.37
6297	NASDAQ	PRDO	Mon, Mar 13, 2023	13.22	13.69	13.04	13.13
6296	NASDAQ	PRDO	Fri, Mar 10, 2023	13.68	13.89	13.26	13.44
6295	NASDAQ	PRDO	Thu, Mar 9, 2023	13.56	13.81	13.32	13.74
6294	NASDAQ	PRDO	Wed, Mar 8, 2023	13.66	13.66	13.28	13.53
6293	NASDAQ	PRDO	Tue, Mar 7, 2023	13.51	13.72	13.34	13.70
6292	NASDAQ	PRDO	Mon, Mar 6, 2023	13.63	13.75	13.30	13.45
6291	NASDAQ	PRDO	Fri, Mar 3, 2023	13.71	13.71	13.33	13.63
6290	NASDAQ	PRDO	Thu, Mar 2, 2023	13.60	13.85	13.53	13.71
6289	NASDAQ	PRDO	Wed, Mar 1, 2023	13.78	13.93	13.63	13.69
6288	NASDAQ	PRDO	Tue, Feb 28, 2023	13.71	14.00	13.71	13.79
6287	NASDAQ	PRDO	Mon, Feb 27, 2023	13.70	14.03	13.62	13.66
6286	NASDAQ	PRDO	Fri, Feb 24, 2023	14.68	14.79	13.28	13.59
6285	NASDAQ	PRDO	Thu, Feb 23, 2023	13.96	13.97	13.72	13.72
6284	NASDAQ	PRDO	Wed, Feb 22, 2023	14.47	14.64	13.78	13.88
6283	NASDAQ	PRDO	Tue, Feb 21, 2023	14.40	14.60	14.33	14.42
6282	NASDAQ	PRDO	Fri, Feb 17, 2023	14.44	14.68	14.30	14.42
6281	NASDAQ	PRDO	Thu, Feb 16, 2023	14.21	14.40	14.00	14.36
6280	NASDAQ	PRDO	Wed, Feb 15, 2023	14.14	14.49	14.05	14.29
6279	NASDAQ	PRDO	Tue, Feb 14, 2023	14.31	14.41	14.15	14.17
6278	NASDAQ	PRDO	Mon, Feb 13, 2023	14.14	14.40	14.05	14.36
6277	NASDAQ	PRDO	Fri, Feb 10, 2023	13.79	14.17	13.77	14.07
6276	NASDAQ	PRDO	Thu, Feb 9, 2023	14.47	14.56	13.91	13.94
6275	NASDAQ	PRDO	Wed, Feb 8, 2023	14.11	14.41	13.94	14.34
6274	NASDAQ	PRDO	Tue, Feb 7, 2023	14.62	14.64	13.16	14.20
6273	NASDAQ	PRDO	Mon, Feb 6, 2023	15.60	15.60	14.64	14.70
6272	NASDAQ	PRDO	Fri, Feb 3, 2023	14.78	15.65	14.78	15.62
6271	NASDAQ	PRDO	Thu, Feb 2, 2023	14.68	14.89	14.63	14.88
6270	NASDAQ	PRDO	Wed, Feb 1, 2023	14.95	15.00	14.27	14.67
6269	NASDAQ	PRDO	Tue, Jan 31, 2023	14.50	15.00	14.47	14.97
6268	NASDAQ	PRDO	Mon, Jan 30, 2023	14.39	14.57	14.35	14.50
6267	NASDAQ	PRDO	Fri, Jan 27, 2023	14.61	14.75	14.45	14.48
6266	NASDAQ	PRDO	Thu, Jan 26, 2023	14.77	14.83	14.50	14.68
6265	NASDAQ	PRDO	Wed, Jan 25, 2023	14.63	14.82	14.49	14.80
6264	NASDAQ	PRDO	Tue, Jan 24, 2023	14.44	14.73	14.35	14.65
6263	NASDAQ	PRDO	Mon, Jan 23, 2023	13.99	14.50	13.98	14.46
6262	NASDAQ	PRDO	Fri, Jan 20, 2023	14.18	14.25	14.02	14.17
6261	NASDAQ	PRDO	Thu, Jan 19, 2023	14.21	14.31	14.04	14.11
6260	NASDAQ	PRDO	Wed, Jan 18, 2023	14.55	14.72	14.15	14.24
6259	NASDAQ	PRDO	Tue, Jan 17, 2023	15.04	15.04	14.52	14.54
6258	NASDAQ	PRDO	Fri, Jan 13, 2023	14.83	15.05	14.77	15.03
6257	NASDAQ	PRDO	Thu, Jan 12, 2023	14.72	15.11	14.61	15.00
6256	NASDAQ	PRDO	Wed, Jan 11, 2023	14.59	14.79	14.41	14.66
6255	NASDAQ	PRDO	Tue, Jan 10, 2023	14.29	14.61	14.23	14.55
6254	NASDAQ	PRDO	Mon, Jan 9, 2023	14.53	14.75	14.42	14.43
6253	NASDAQ	PRDO	Fri, Jan 6, 2023	14.29	14.56	14.18	14.47
6252	NASDAQ	PRDO	Thu, Jan 5, 2023	14.18	14.26	14.10	14.17
6251	NASDAQ	PRDO	Wed, Jan 4, 2023	14.39	14.56	14.20	14.25
6250	NASDAQ	PRDO	Tue, Jan 3, 2023	13.89	14.42	13.88	14.41
6249	NASDAQ	PRDO	Fri, Dec 30, 2022	14.06	14.23	13.88	13.90
6248	NASDAQ	PRDO	Thu, Dec 29, 2022	13.99	14.29	13.94	14.15
6247	NASDAQ	PRDO	Wed, Dec 28, 2022	14.40	14.44	13.94	13.94
6246	NASDAQ	PRDO	Tue, Dec 27, 2022	14.14	14.46	14.02	14.37
6245	NASDAQ	PRDO	Fri, Dec 23, 2022	14.23	14.38	14.03	14.08
6244	NASDAQ	PRDO	Thu, Dec 22, 2022	14.30	14.41	14.14	14.24
6243	NASDAQ	PRDO	Wed, Dec 21, 2022	13.96	14.36	13.96	14.32
6242	NASDAQ	PRDO	Tue, Dec 20, 2022	13.91	14.12	13.85	13.88
6241	NASDAQ	PRDO	Mon, Dec 19, 2022	13.61	14.10	13.47	13.90
6240	NASDAQ	PRDO	Fri, Dec 16, 2022	13.62	13.79	13.29	13.48
6239	NASDAQ	PRDO	Thu, Dec 15, 2022	13.73	14.07	13.47	13.67
6238	NASDAQ	PRDO	Wed, Dec 14, 2022	13.85	14.08	13.61	13.79
6237	NASDAQ	PRDO	Tue, Dec 13, 2022	13.97	14.14	13.85	13.90
6236	NASDAQ	PRDO	Mon, Dec 12, 2022	13.92	13.92	13.52	13.65
6235	NASDAQ	PRDO	Fri, Dec 9, 2022	14.14	14.22	13.84	13.94
6234	NASDAQ	PRDO	Thu, Dec 8, 2022	14.15	14.43	14.06	14.18
6233	NASDAQ	PRDO	Wed, Dec 7, 2022	13.75	13.97	13.61	13.95
6232	NASDAQ	PRDO	Tue, Dec 6, 2022	13.89	14.10	13.84	13.90
6231	NASDAQ	PRDO	Mon, Dec 5, 2022	14.15	14.15	13.81	13.93
6230	NASDAQ	PRDO	Fri, Dec 2, 2022	14.19	14.33	13.92	14.24
6229	NASDAQ	PRDO	Thu, Dec 1, 2022	14.46	14.82	14.23	14.39
6228	NASDAQ	PRDO	Wed, Nov 30, 2022	14.32	14.42	14.10	14.35
6227	NASDAQ	PRDO	Tue, Nov 29, 2022	14.17	14.48	14.16	14.36
6226	NASDAQ	PRDO	Mon, Nov 28, 2022	14.12	14.33	14.01	14.22
6225	NASDAQ	PRDO	Fri, Nov 25, 2022	14.21	14.38	14.15	14.15
6224	NASDAQ	PRDO	Wed, Nov 23, 2022	14.35	14.35	14.05	14.19
6223	NASDAQ	PRDO	Tue, Nov 22, 2022	14.16	14.37	14.02	14.32
6222	NASDAQ	PRDO	Mon, Nov 21, 2022	13.98	14.23	13.96	14.15
6221	NASDAQ	PRDO	Fri, Nov 18, 2022	14.47	14.60	14.01	14.10
6220	NASDAQ	PRDO	Thu, Nov 17, 2022	14.05	14.28	13.91	14.27
6219	NASDAQ	PRDO	Wed, Nov 16, 2022	14.19	14.34	13.98	14.14
6218	NASDAQ	PRDO	Tue, Nov 15, 2022	13.95	14.30	13.86	14.22
6217	NASDAQ	PRDO	Mon, Nov 14, 2022	14.30	14.40	13.81	13.82
6216	NASDAQ	PRDO	Fri, Nov 11, 2022	14.55	14.71	14.17	14.38
6215	NASDAQ	PRDO	Thu, Nov 10, 2022	14.00	14.56	14.00	14.55
6214	NASDAQ	PRDO	Wed, Nov 9, 2022	13.40	14.12	13.06	13.84
6213	NASDAQ	PRDO	Tue, Nov 8, 2022	12.00	13.50	11.93	13.43
6212	NASDAQ	PRDO	Mon, Nov 7, 2022	11.61	11.86	11.58	11.78
6211	NASDAQ	PRDO	Fri, Nov 4, 2022	11.63	11.68	11.33	11.58
6210	NASDAQ	PRDO	Thu, Nov 3, 2022	11.30	11.56	11.18	11.50
6209	NASDAQ	PRDO	Wed, Nov 2, 2022	11.50	11.76	11.37	11.38
6208	NASDAQ	PRDO	Tue, Nov 1, 2022	11.68	11.74	11.46	11.48
6207	NASDAQ	PRDO	Mon, Oct 31, 2022	11.58	11.61	11.33	11.43
6206	NASDAQ	PRDO	Fri, Oct 28, 2022	11.38	11.76	11.38	11.68
6205	NASDAQ	PRDO	Thu, Oct 27, 2022	11.33	11.42	11.20	11.30
6204	NASDAQ	PRDO	Wed, Oct 26, 2022	11.39	11.49	11.24	11.25
6203	NASDAQ	PRDO	Tue, Oct 25, 2022	10.98	11.38	10.98	11.38
6202	NASDAQ	PRDO	Mon, Oct 24, 2022	10.64	11.05	10.64	10.95
6201	NASDAQ	PRDO	Fri, Oct 21, 2022	10.74	10.81	10.60	10.62
6200	NASDAQ	PRDO	Thu, Oct 20, 2022	10.67	10.83	10.58	10.66
6199	NASDAQ	PRDO	Wed, Oct 19, 2022	10.77	10.91	10.52	10.68
6198	NASDAQ	PRDO	Tue, Oct 18, 2022	10.88	11.00	10.75	10.88
6197	NASDAQ	PRDO	Mon, Oct 17, 2022	10.50	10.78	10.22	10.76
6196	NASDAQ	PRDO	Fri, Oct 14, 2022	10.50	10.59	10.38	10.38
6195	NASDAQ	PRDO	Thu, Oct 13, 2022	10.17	10.58	10.10	10.50
6194	NASDAQ	PRDO	Wed, Oct 12, 2022	10.17	10.45	9.97	10.38
6193	NASDAQ	PRDO	Tue, Oct 11, 2022	10.12	10.26	10.03	10.19
6192	NASDAQ	PRDO	Mon, Oct 10, 2022	10.20	10.21	10.04	10.15
6191	NASDAQ	PRDO	Fri, Oct 7, 2022	10.30	10.32	10.09	10.18
6190	NASDAQ	PRDO	Thu, Oct 6, 2022	10.29	10.40	10.25	10.37
6189	NASDAQ	PRDO	Wed, Oct 5, 2022	10.44	10.57	10.26	10.30
6188	NASDAQ	PRDO	Tue, Oct 4, 2022	10.38	10.65	10.38	10.54
6187	NASDAQ	PRDO	Mon, Oct 3, 2022	10.40	10.46	10.26	10.31
6186	NASDAQ	PRDO	Fri, Sep 30, 2022	10.48	10.61	10.30	10.30
6185	NASDAQ	PRDO	Thu, Sep 29, 2022	10.45	10.56	10.24	10.49
6184	NASDAQ	PRDO	Wed, Sep 28, 2022	10.18	10.65	10.10	10.59
6183	NASDAQ	PRDO	Tue, Sep 27, 2022	10.09	10.36	10.05	10.16
6182	NASDAQ	PRDO	Mon, Sep 26, 2022	10.09	10.32	10.02	10.06
6181	NASDAQ	PRDO	Fri, Sep 23, 2022	10.26	10.26	10.07	10.13
6180	NASDAQ	PRDO	Thu, Sep 22, 2022	10.53	10.63	10.32	10.33
6179	NASDAQ	PRDO	Wed, Sep 21, 2022	10.73	10.81	10.50	10.58
6178	NASDAQ	PRDO	Tue, Sep 20, 2022	10.88	10.88	10.58	10.69
6177	NASDAQ	PRDO	Mon, Sep 19, 2022	10.73	10.92	10.60	10.88
6176	NASDAQ	PRDO	Fri, Sep 16, 2022	10.93	11.03	10.64	10.70
6175	NASDAQ	PRDO	Thu, Sep 15, 2022	10.78	11.10	10.74	11.03
6174	NASDAQ	PRDO	Wed, Sep 14, 2022	10.75	10.85	10.61	10.77
6173	NASDAQ	PRDO	Tue, Sep 13, 2022	10.95	11.07	10.72	10.76
6172	NASDAQ	PRDO	Mon, Sep 12, 2022	10.92	11.12	10.89	11.07
6171	NASDAQ	PRDO	Fri, Sep 9, 2022	10.80	11.03	10.76	10.81
6170	NASDAQ	PRDO	Thu, Sep 8, 2022	11.01	11.01	10.79	10.80
6169	NASDAQ	PRDO	Wed, Sep 7, 2022	11.12	11.24	10.97	11.08
6168	NASDAQ	PRDO	Tue, Sep 6, 2022	11.23	11.36	11.10	11.12
6167	NASDAQ	PRDO	Fri, Sep 2, 2022	11.65	11.65	11.19	11.26
6166	NASDAQ	PRDO	Thu, Sep 1, 2022	11.59	11.79	11.51	11.64
6165	NASDAQ	PRDO	Wed, Aug 31, 2022	11.88	11.88	11.56	11.58
6164	NASDAQ	PRDO	Tue, Aug 30, 2022	11.93	11.99	11.69	11.82
6163	NASDAQ	PRDO	Mon, Aug 29, 2022	12.05	12.12	11.92	11.94
6162	NASDAQ	PRDO	Fri, Aug 26, 2022	12.47	12.56	12.13	12.17
6161	NASDAQ	PRDO	Thu, Aug 25, 2022	12.40	12.60	12.37	12.49
6160	NASDAQ	PRDO	Wed, Aug 24, 2022	12.45	12.51	12.28	12.38
6159	NASDAQ	PRDO	Tue, Aug 23, 2022	12.62	12.77	12.49	12.49
6158	NASDAQ	PRDO	Mon, Aug 22, 2022	12.64	12.80	12.42	12.65
6157	NASDAQ	PRDO	Fri, Aug 19, 2022	12.44	12.76	12.42	12.74
6156	NASDAQ	PRDO	Thu, Aug 18, 2022	12.48	12.53	12.36	12.49
6155	NASDAQ	PRDO	Wed, Aug 17, 2022	12.27	12.61	12.25	12.48
6154	NASDAQ	PRDO	Tue, Aug 16, 2022	12.45	12.49	12.34	12.37
6153	NASDAQ	PRDO	Mon, Aug 15, 2022	12.31	12.54	12.13	12.49
6152	NASDAQ	PRDO	Fri, Aug 12, 2022	12.16	12.43	11.93	12.40
6151	NASDAQ	PRDO	Thu, Aug 11, 2022	12.28	12.33	11.98	12.03
6150	NASDAQ	PRDO	Wed, Aug 10, 2022	12.30	12.44	11.95	12.30
6149	NASDAQ	PRDO	Tue, Aug 9, 2022	13.06	13.37	12.15	12.21
6148	NASDAQ	PRDO	Mon, Aug 8, 2022	13.17	13.21	12.88	13.02
6147	NASDAQ	PRDO	Fri, Aug 5, 2022	13.09	13.10	12.74	13.03
6146	NASDAQ	PRDO	Thu, Aug 4, 2022	13.57	13.59	13.17	13.22
6145	NASDAQ	PRDO	Wed, Aug 3, 2022	13.68	13.76	13.52	13.61
6144	NASDAQ	PRDO	Tue, Aug 2, 2022	13.85	13.87	13.57	13.60
6143	NASDAQ	PRDO	Mon, Aug 1, 2022	13.68	13.89	13.60	13.86
6142	NASDAQ	PRDO	Fri, Jul 29, 2022	13.71	13.79	13.55	13.70
6141	NASDAQ	PRDO	Thu, Jul 28, 2022	13.50	13.76	13.38	13.71
6140	NASDAQ	PRDO	Wed, Jul 27, 2022	13.24	13.55	13.12	13.50
6139	NASDAQ	PRDO	Tue, Jul 26, 2022	12.86	13.30	12.74	13.23
6138	NASDAQ	PRDO	Mon, Jul 25, 2022	13.04	13.16	12.90	12.94
6137	NASDAQ	PRDO	Fri, Jul 22, 2022	12.92	13.25	12.87	12.98
6136	NASDAQ	PRDO	Thu, Jul 21, 2022	12.77	12.96	12.59	12.90
6135	NASDAQ	PRDO	Wed, Jul 20, 2022	12.63	12.90	12.54	12.87
6134	NASDAQ	PRDO	Tue, Jul 19, 2022	12.25	12.85	12.23	12.63
6133	NASDAQ	PRDO	Mon, Jul 18, 2022	12.34	12.40	12.13	12.15
6132	NASDAQ	PRDO	Fri, Jul 15, 2022	12.00	12.31	11.83	12.30
6131	NASDAQ	PRDO	Thu, Jul 14, 2022	11.77	11.97	11.74	11.92
6130	NASDAQ	PRDO	Wed, Jul 13, 2022	11.73	11.94	11.70	11.86
6129	NASDAQ	PRDO	Tue, Jul 12, 2022	11.76	11.94	11.76	11.80
6128	NASDAQ	PRDO	Mon, Jul 11, 2022	11.89	11.99	11.68	11.76
6127	NASDAQ	PRDO	Fri, Jul 8, 2022	11.80	12.00	11.68	11.96
6126	NASDAQ	PRDO	Thu, Jul 7, 2022	11.90	11.94	11.77	11.85
6125	NASDAQ	PRDO	Wed, Jul 6, 2022	11.81	11.94	11.58	11.80
6124	NASDAQ	PRDO	Tue, Jul 5, 2022	11.99	11.99	11.62	11.84
6123	NASDAQ	PRDO	Fri, Jul 1, 2022	11.71	12.07	11.64	12.06
6122	NASDAQ	PRDO	Thu, Jun 30, 2022	11.46	11.82	11.44	11.78
6121	NASDAQ	PRDO	Wed, Jun 29, 2022	11.64	11.74	11.47	11.53
6120	NASDAQ	PRDO	Tue, Jun 28, 2022	11.64	11.84	11.62	11.67
6119	NASDAQ	PRDO	Mon, Jun 27, 2022	11.45	11.64	11.19	11.60
6118	NASDAQ	PRDO	Fri, Jun 24, 2022	11.00	11.46	10.82	11.42
6117	NASDAQ	PRDO	Thu, Jun 23, 2022	10.73	11.00	10.66	10.99
6116	NASDAQ	PRDO	Wed, Jun 22, 2022	10.43	10.76	10.32	10.73
6115	NASDAQ	PRDO	Tue, Jun 21, 2022	10.47	10.60	10.29	10.47
6114	NASDAQ	PRDO	Fri, Jun 17, 2022	10.16	10.46	10.02	10.43
6113	NASDAQ	PRDO	Thu, Jun 16, 2022	10.19	10.22	9.87	10.07
6112	NASDAQ	PRDO	Wed, Jun 15, 2022	10.42	10.47	10.16	10.20
6111	NASDAQ	PRDO	Tue, Jun 14, 2022	10.17	10.30	10.06	10.24
6110	NASDAQ	PRDO	Mon, Jun 13, 2022	10.01	10.25	10.01	10.13
6109	NASDAQ	PRDO	Fri, Jun 10, 2022	10.57	10.59	10.34	10.34
6108	NASDAQ	PRDO	Thu, Jun 9, 2022	10.76	10.78	10.63	10.65
6107	NASDAQ	PRDO	Wed, Jun 8, 2022	10.95	11.02	10.64	10.81
6106	NASDAQ	PRDO	Tue, Jun 7, 2022	10.90	10.98	10.79	10.98
6105	NASDAQ	PRDO	Mon, Jun 6, 2022	10.80	10.96	10.64	10.92
6104	NASDAQ	PRDO	Fri, Jun 3, 2022	10.82	10.86	10.62	10.77
6103	NASDAQ	PRDO	Thu, Jun 2, 2022	10.72	10.97	10.58	10.88
6102	NASDAQ	PRDO	Wed, Jun 1, 2022	10.89	10.90	10.57	10.73
6101	NASDAQ	PRDO	Tue, May 31, 2022	11.00	11.08	10.81	10.91
6100	NASDAQ	PRDO	Fri, May 27, 2022	10.77	11.05	10.77	11.05
6099	NASDAQ	PRDO	Thu, May 26, 2022	11.04	11.18	10.70	10.71
6098	NASDAQ	PRDO	Wed, May 25, 2022	10.66	11.04	10.60	11.01
6097	NASDAQ	PRDO	Tue, May 24, 2022	10.30	10.70	10.07	10.66
6096	NASDAQ	PRDO	Mon, May 23, 2022	10.65	10.76	10.29	10.30
6095	NASDAQ	PRDO	Fri, May 20, 2022	10.58	10.65	10.23	10.63
6094	NASDAQ	PRDO	Thu, May 19, 2022	10.48	10.65	10.35	10.50
6093	NASDAQ	PRDO	Wed, May 18, 2022	10.60	10.81	10.45	10.50
6092	NASDAQ	PRDO	Tue, May 17, 2022	10.17	10.74	10.15	10.61
6091	NASDAQ	PRDO	Mon, May 16, 2022	10.02	10.23	9.88	10.07
6090	NASDAQ	PRDO	Fri, May 13, 2022	10.12	10.12	9.75	10.02
6089	NASDAQ	PRDO	Thu, May 12, 2022	10.08	10.23	9.84	10.05
6088	NASDAQ	PRDO	Wed, May 11, 2022	10.40	10.56	10.03	10.07
6087	NASDAQ	PRDO	Tue, May 10, 2022	10.24	10.52	10.09	10.35
6086	NASDAQ	PRDO	Mon, May 9, 2022	10.37	10.57	10.18	10.22
6085	NASDAQ	PRDO	Fri, May 6, 2022	11.43	11.66	10.32	10.42
6084	NASDAQ	PRDO	Thu, May 5, 2022	10.82	10.94	10.63	10.75
6083	NASDAQ	PRDO	Wed, May 4, 2022	10.93	10.98	10.63	10.82
6082	NASDAQ	PRDO	Tue, May 3, 2022	11.27	11.27	10.86	10.88
6081	NASDAQ	PRDO	Mon, May 2, 2022	11.13	11.36	11.13	11.31
6080	NASDAQ	PRDO	Fri, Apr 29, 2022	11.40	11.50	11.12	11.18
6079	NASDAQ	PRDO	Thu, Apr 28, 2022	11.58	11.62	11.23	11.42
6078	NASDAQ	PRDO	Wed, Apr 27, 2022	11.70	11.72	11.51	11.53
6077	NASDAQ	PRDO	Tue, Apr 26, 2022	11.68	11.83	11.64	11.68
6076	NASDAQ	PRDO	Mon, Apr 25, 2022	11.66	11.77	11.49	11.73
6075	NASDAQ	PRDO	Fri, Apr 22, 2022	11.69	11.76	11.59	11.66
6074	NASDAQ	PRDO	Thu, Apr 21, 2022	11.95	11.98	11.68	11.75
6073	NASDAQ	PRDO	Wed, Apr 20, 2022	11.75	11.93	11.75	11.89
6072	NASDAQ	PRDO	Tue, Apr 19, 2022	11.71	11.83	11.65	11.68
6071	NASDAQ	PRDO	Mon, Apr 18, 2022	11.63	11.76	11.45	11.70
6070	NASDAQ	PRDO	Thu, Apr 14, 2022	11.54	11.72	11.42	11.66
6069	NASDAQ	PRDO	Wed, Apr 13, 2022	11.59	11.59	11.43	11.54
6068	NASDAQ	PRDO	Tue, Apr 12, 2022	11.45	11.59	11.39	11.44
6067	NASDAQ	PRDO	Mon, Apr 11, 2022	11.41	11.54	11.35	11.37
6066	NASDAQ	PRDO	Fri, Apr 8, 2022	11.32	11.51	11.32	11.40
6065	NASDAQ	PRDO	Thu, Apr 7, 2022	11.18	11.35	11.07	11.30
6064	NASDAQ	PRDO	Wed, Apr 6, 2022	11.08	11.26	11.01	11.14
6063	NASDAQ	PRDO	Tue, Apr 5, 2022	11.21	11.38	11.09	11.12
6062	NASDAQ	PRDO	Mon, Apr 4, 2022	11.60	11.63	11.18	11.24
6061	NASDAQ	PRDO	Fri, Apr 1, 2022	11.51	11.69	11.47	11.67
6060	NASDAQ	PRDO	Thu, Mar 31, 2022	11.72	11.84	11.47	11.48
6059	NASDAQ	PRDO	Wed, Mar 30, 2022	11.78	11.86	11.59	11.72
6058	NASDAQ	PRDO	Tue, Mar 29, 2022	11.63	11.87	11.63	11.78
6057	NASDAQ	PRDO	Mon, Mar 28, 2022	11.68	11.76	11.51	11.54
6056	NASDAQ	PRDO	Fri, Mar 25, 2022	11.63	11.77	11.53	11.75
6055	NASDAQ	PRDO	Thu, Mar 24, 2022	11.24	11.54	11.05	11.53
6054	NASDAQ	PRDO	Wed, Mar 23, 2022	11.36	11.41	11.16	11.21
6053	NASDAQ	PRDO	Tue, Mar 22, 2022	11.71	11.76	11.33	11.37
6052	NASDAQ	PRDO	Mon, Mar 21, 2022	11.39	11.63	11.33	11.63
6051	NASDAQ	PRDO	Fri, Mar 18, 2022	11.46	11.48	11.27	11.36
6050	NASDAQ	PRDO	Thu, Mar 17, 2022	11.42	11.49	11.32	11.43
6049	NASDAQ	PRDO	Wed, Mar 16, 2022	11.15	11.43	11.04	11.40
6048	NASDAQ	PRDO	Tue, Mar 15, 2022	11.07	11.31	10.92	11.08
6047	NASDAQ	PRDO	Mon, Mar 14, 2022	10.80	11.03	10.66	11.00
6046	NASDAQ	PRDO	Fri, Mar 11, 2022	10.88	10.99	10.54	10.73
6045	NASDAQ	PRDO	Thu, Mar 10, 2022	10.48	10.83	10.41	10.82
6044	NASDAQ	PRDO	Wed, Mar 9, 2022	10.54	10.74	10.50	10.59
6043	NASDAQ	PRDO	Tue, Mar 8, 2022	10.55	10.55	10.22	10.41
6042	NASDAQ	PRDO	Mon, Mar 7, 2022	10.80	10.92	10.47	10.50
6041	NASDAQ	PRDO	Fri, Mar 4, 2022	10.70	10.91	10.55	10.75
6040	NASDAQ	PRDO	Thu, Mar 3, 2022	10.79	10.79	10.61	10.77
6039	NASDAQ	PRDO	Wed, Mar 2, 2022	10.53	10.86	10.48	10.78
6038	NASDAQ	PRDO	Tue, Mar 1, 2022	10.37	10.76	10.36	10.62
6037	NASDAQ	PRDO	Mon, Feb 28, 2022	10.31	10.70	10.30	10.47
6036	NASDAQ	PRDO	Fri, Feb 25, 2022	9.73	10.39	9.65	10.39
6035	NASDAQ	PRDO	Thu, Feb 24, 2022	9.85	10.12	9.83	10.08
6034	NASDAQ	PRDO	Wed, Feb 23, 2022	10.17	10.26	10.03	10.08
6033	NASDAQ	PRDO	Tue, Feb 22, 2022	10.14	10.28	10.07	10.11
6032	NASDAQ	PRDO	Fri, Feb 18, 2022	10.06	10.27	10.04	10.21
6031	NASDAQ	PRDO	Thu, Feb 17, 2022	10.33	10.39	10.00	10.13
6030	NASDAQ	PRDO	Wed, Feb 16, 2022	10.42	10.46	10.30	10.42
6029	NASDAQ	PRDO	Tue, Feb 15, 2022	10.35	10.54	10.35	10.42
6028	NASDAQ	PRDO	Mon, Feb 14, 2022	10.20	10.34	10.14	10.29
6027	NASDAQ	PRDO	Fri, Feb 11, 2022	10.20	10.31	10.12	10.20
6026	NASDAQ	PRDO	Thu, Feb 10, 2022	10.53	10.54	10.11	10.15
6025	NASDAQ	PRDO	Wed, Feb 9, 2022	10.76	10.81	10.57	10.62
6024	NASDAQ	PRDO	Tue, Feb 8, 2022	10.56	10.89	10.54	10.69
6023	NASDAQ	PRDO	Mon, Feb 7, 2022	11.19	11.19	10.54	10.58
6022	NASDAQ	PRDO	Fri, Feb 4, 2022	10.57	10.75	10.43	10.67
6021	NASDAQ	PRDO	Thu, Feb 3, 2022	10.94	10.95	10.62	10.63
6020	NASDAQ	PRDO	Wed, Feb 2, 2022	11.11	11.22	10.86	10.99
6019	NASDAQ	PRDO	Tue, Feb 1, 2022	10.97	11.12	10.77	11.11
6018	NASDAQ	PRDO	Mon, Jan 31, 2022	10.71	11.05	10.67	11.02
6017	NASDAQ	PRDO	Fri, Jan 28, 2022	10.77	10.80	10.48	10.80
6016	NASDAQ	PRDO	Thu, Jan 27, 2022	10.96	11.06	10.71	10.77
6015	NASDAQ	PRDO	Wed, Jan 26, 2022	11.30	11.42	10.89	10.94
6014	NASDAQ	PRDO	Tue, Jan 25, 2022	11.37	11.43	11.11	11.22
6013	NASDAQ	PRDO	Mon, Jan 24, 2022	10.94	11.52	10.91	11.47
6012	NASDAQ	PRDO	Fri, Jan 21, 2022	11.30	11.44	11.04	11.05
6011	NASDAQ	PRDO	Thu, Jan 20, 2022	11.61	11.80	11.35	11.37
6010	NASDAQ	PRDO	Wed, Jan 19, 2022	11.72	11.83	11.55	11.61
6009	NASDAQ	PRDO	Tue, Jan 18, 2022	12.06	12.07	11.76	11.80
6008	NASDAQ	PRDO	Fri, Jan 14, 2022	11.92	12.13	11.92	12.08
6007	NASDAQ	PRDO	Thu, Jan 13, 2022	12.00	12.14	11.81	12.03
6006	NASDAQ	PRDO	Wed, Jan 12, 2022	12.50	12.65	11.92	12.00
6005	NASDAQ	PRDO	Tue, Jan 11, 2022	12.41	12.64	12.35	12.49
6004	NASDAQ	PRDO	Mon, Jan 10, 2022	12.09	12.50	12.04	12.44
6003	NASDAQ	PRDO	Fri, Jan 7, 2022	12.07	12.31	12.05	12.08
6002	NASDAQ	PRDO	Thu, Jan 6, 2022	12.13	12.34	12.06	12.07
6001	NASDAQ	PRDO	Wed, Jan 5, 2022	12.30	12.46	12.06	12.08
6000	NASDAQ	PRDO	Tue, Jan 4, 2022	12.12	12.35	12.03	12.33
5999	NASDAQ	PRDO	Mon, Jan 3, 2022	11.77	12.14	11.77	12.07
5998	NASDAQ	PRDO	Fri, Dec 31, 2021	11.67	11.88	11.67	11.76
5997	NASDAQ	PRDO	Thu, Dec 30, 2021	11.78	11.91	11.68	11.70
5996	NASDAQ	PRDO	Wed, Dec 29, 2021	11.85	11.85	11.66	11.78
5995	NASDAQ	PRDO	Tue, Dec 28, 2021	11.72	11.93	11.70	11.85
5994	NASDAQ	PRDO	Mon, Dec 27, 2021	11.60	11.76	11.58	11.74
5993	NASDAQ	PRDO	Thu, Dec 23, 2021	11.53	11.65	11.47	11.60
5992	NASDAQ	PRDO	Wed, Dec 22, 2021	11.47	11.58	11.35	11.51
5991	NASDAQ	PRDO	Tue, Dec 21, 2021	11.62	11.73	11.26	11.51
5990	NASDAQ	PRDO	Mon, Dec 20, 2021	11.75	11.81	11.23	11.50
5989	NASDAQ	PRDO	Fri, Dec 17, 2021	11.86	12.09	11.69	11.92
5988	NASDAQ	PRDO	Thu, Dec 16, 2021	11.91	12.13	11.78	11.86
5987	NASDAQ	PRDO	Wed, Dec 15, 2021	11.57	11.78	11.47	11.74
5986	NASDAQ	PRDO	Tue, Dec 14, 2021	11.67	11.91	11.54	11.57
5985	NASDAQ	PRDO	Mon, Dec 13, 2021	11.52	11.85	11.47	11.70
5984	NASDAQ	PRDO	Fri, Dec 10, 2021	11.37	11.53	11.34	11.51
5983	NASDAQ	PRDO	Thu, Dec 9, 2021	11.15	11.38	11.15	11.28
5982	NASDAQ	PRDO	Wed, Dec 8, 2021	10.93	11.36	10.93	11.26
5981	NASDAQ	PRDO	Tue, Dec 7, 2021	10.94	11.07	10.83	10.89
5980	NASDAQ	PRDO	Mon, Dec 6, 2021	10.41	10.94	10.41	10.83
5979	NASDAQ	PRDO	Fri, Dec 3, 2021	10.23	10.43	10.09	10.37
5978	NASDAQ	PRDO	Thu, Dec 2, 2021	9.87	10.29	9.87	10.26
5977	NASDAQ	PRDO	Wed, Dec 1, 2021	9.98	10.08	9.86	9.86
5976	NASDAQ	PRDO	Tue, Nov 30, 2021	9.89	9.89	9.65	9.85
5975	NASDAQ	PRDO	Mon, Nov 29, 2021	10.27	10.34	9.86	9.89
5974	NASDAQ	PRDO	Fri, Nov 26, 2021	10.30	10.30	9.85	10.24
5973	NASDAQ	PRDO	Wed, Nov 24, 2021	10.34	10.54	10.24	10.46
5972	NASDAQ	PRDO	Tue, Nov 23, 2021	10.56	10.56	10.32	10.38
5971	NASDAQ	PRDO	Mon, Nov 22, 2021	10.54	10.77	10.49	10.51
5970	NASDAQ	PRDO	Fri, Nov 19, 2021	10.60	10.67	10.46	10.54
5969	NASDAQ	PRDO	Thu, Nov 18, 2021	10.75	10.75	10.46	10.63
5968	NASDAQ	PRDO	Wed, Nov 17, 2021	10.59	10.81	10.58	10.72
5967	NASDAQ	PRDO	Tue, Nov 16, 2021	10.50	10.72	10.40	10.71
5966	NASDAQ	PRDO	Mon, Nov 15, 2021	10.44	10.65	10.30	10.49
5965	NASDAQ	PRDO	Fri, Nov 12, 2021	10.31	10.46	10.22	10.39
5964	NASDAQ	PRDO	Thu, Nov 11, 2021	10.38	10.40	10.22	10.25
5963	NASDAQ	PRDO	Wed, Nov 10, 2021	10.38	10.49	10.35	10.41
5962	NASDAQ	PRDO	Tue, Nov 9, 2021	10.45	10.56	10.30	10.41
5961	NASDAQ	PRDO	Mon, Nov 8, 2021	10.90	11.01	10.37	10.47
5960	NASDAQ	PRDO	Fri, Nov 5, 2021	10.85	11.16	10.60	10.95
5959	NASDAQ	PRDO	Thu, Nov 4, 2021	10.90	10.91	10.46	10.49
5958	NASDAQ	PRDO	Wed, Nov 3, 2021	10.52	10.97	10.44	10.87
5957	NASDAQ	PRDO	Tue, Nov 2, 2021	10.98	10.98	10.49	10.53
5956	NASDAQ	PRDO	Mon, Nov 1, 2021	10.68	11.13	10.63	11.01
5955	NASDAQ	PRDO	Fri, Oct 29, 2021	10.58	10.75	10.44	10.62
5954	NASDAQ	PRDO	Thu, Oct 28, 2021	10.55	10.69	10.54	10.64
5953	NASDAQ	PRDO	Wed, Oct 27, 2021	10.65	10.68	10.53	10.55
5952	NASDAQ	PRDO	Tue, Oct 26, 2021	10.75	10.82	10.69	10.69
5951	NASDAQ	PRDO	Mon, Oct 25, 2021	10.61	10.77	10.47	10.75
5950	NASDAQ	PRDO	Fri, Oct 22, 2021	10.67	10.69	10.53	10.56
5949	NASDAQ	PRDO	Thu, Oct 21, 2021	10.56	10.79	10.52	10.68
5948	NASDAQ	PRDO	Wed, Oct 20, 2021	10.75	10.77	10.49	10.55
5947	NASDAQ	PRDO	Tue, Oct 19, 2021	10.84	10.96	10.75	10.77
5946	NASDAQ	PRDO	Mon, Oct 18, 2021	10.86	10.88	10.73	10.79
5945	NASDAQ	PRDO	Fri, Oct 15, 2021	10.97	11.20	10.85	10.86
5944	NASDAQ	PRDO	Thu, Oct 14, 2021	10.78	10.96	10.71	10.85
5943	NASDAQ	PRDO	Wed, Oct 13, 2021	10.78	10.84	10.64	10.73
5942	NASDAQ	PRDO	Tue, Oct 12, 2021	11.13	11.17	10.75	10.78
5941	NASDAQ	PRDO	Mon, Oct 11, 2021	11.29	11.39	11.11	11.13
5940	NASDAQ	PRDO	Fri, Oct 8, 2021	11.30	11.41	11.24	11.27
5939	NASDAQ	PRDO	Thu, Oct 7, 2021	11.10	11.29	11.09	11.25
5938	NASDAQ	PRDO	Wed, Oct 6, 2021	11.06	11.18	11.00	11.07
5937	NASDAQ	PRDO	Tue, Oct 5, 2021	11.09	11.34	11.01	11.14
5936	NASDAQ	PRDO	Mon, Oct 4, 2021	10.86	11.09	10.77	11.05
5935	NASDAQ	PRDO	Fri, Oct 1, 2021	10.65	10.91	10.65	10.84
5934	NASDAQ	PRDO	Thu, Sep 30, 2021	10.67	10.73	10.56	10.56
5933	NASDAQ	PRDO	Wed, Sep 29, 2021	10.81	10.92	10.56	10.67
5932	NASDAQ	PRDO	Tue, Sep 28, 2021	10.97	10.97	10.63	10.68
5931	NASDAQ	PRDO	Mon, Sep 27, 2021	10.61	10.86	10.55	10.70
5930	NASDAQ	PRDO	Fri, Sep 24, 2021	10.54	10.67	10.46	10.54
5929	NASDAQ	PRDO	Thu, Sep 23, 2021	10.49	10.66	10.44	10.55
5928	NASDAQ	PRDO	Wed, Sep 22, 2021	10.52	10.66	10.42	10.48
5927	NASDAQ	PRDO	Tue, Sep 21, 2021	10.66	10.68	10.44	10.45
5926	NASDAQ	PRDO	Mon, Sep 20, 2021	10.44	10.66	10.25	10.63
5925	NASDAQ	PRDO	Fri, Sep 17, 2021	10.49	10.69	10.38	10.61
5924	NASDAQ	PRDO	Thu, Sep 16, 2021	10.67	10.71	10.46	10.47
5923	NASDAQ	PRDO	Wed, Sep 15, 2021	10.58	10.85	10.47	10.69
5922	NASDAQ	PRDO	Tue, Sep 14, 2021	10.88	10.88	10.41	10.52
5921	NASDAQ	PRDO	Mon, Sep 13, 2021	10.65	10.83	10.54	10.81
5920	NASDAQ	PRDO	Fri, Sep 10, 2021	10.84	10.86	10.56	10.57
5919	NASDAQ	PRDO	Thu, Sep 9, 2021	10.87	10.90	10.71	10.77
5918	NASDAQ	PRDO	Wed, Sep 8, 2021	10.74	10.89	10.67	10.85
5917	NASDAQ	PRDO	Tue, Sep 7, 2021	10.88	10.98	10.75	10.78
5916	NASDAQ	PRDO	Fri, Sep 3, 2021	10.91	10.93	10.62	10.86
5915	NASDAQ	PRDO	Thu, Sep 2, 2021	10.95	11.07	10.85	10.91
5914	NASDAQ	PRDO	Wed, Sep 1, 2021	11.02	11.08	10.89	10.94
5913	NASDAQ	PRDO	Tue, Aug 31, 2021	10.98	11.10	10.94	10.98
5912	NASDAQ	PRDO	Mon, Aug 30, 2021	11.13	11.13	10.90	10.95
5911	NASDAQ	PRDO	Fri, Aug 27, 2021	10.93	11.19	10.84	11.14
5910	NASDAQ	PRDO	Thu, Aug 26, 2021	11.15	11.25	10.92	10.93
5909	NASDAQ	PRDO	Wed, Aug 25, 2021	11.20	11.21	11.04	11.17
5908	NASDAQ	PRDO	Tue, Aug 24, 2021	11.13	11.23	11.07	11.19
5907	NASDAQ	PRDO	Mon, Aug 23, 2021	10.97	11.13	10.95	11.08
5906	NASDAQ	PRDO	Fri, Aug 20, 2021	10.55	10.92	10.55	10.85
5905	NASDAQ	PRDO	Thu, Aug 19, 2021	10.80	10.85	10.55	10.62
5904	NASDAQ	PRDO	Wed, Aug 18, 2021	10.98	11.05	10.83	10.86
5903	NASDAQ	PRDO	Tue, Aug 17, 2021	11.14	11.14	10.91	11.03
5902	NASDAQ	PRDO	Mon, Aug 16, 2021	11.26	11.38	11.11	11.22
5901	NASDAQ	PRDO	Fri, Aug 13, 2021	11.39	11.44	11.22	11.34
5900	NASDAQ	PRDO	Thu, Aug 12, 2021	11.33	11.48	11.26	11.39
5899	NASDAQ	PRDO	Wed, Aug 11, 2021	11.33	11.43	11.21	11.34
5898	NASDAQ	PRDO	Tue, Aug 10, 2021	11.39	11.39	11.10	11.33
5897	NASDAQ	PRDO	Mon, Aug 9, 2021	11.58	11.64	11.24	11.42
5896	NASDAQ	PRDO	Fri, Aug 6, 2021	12.05	12.28	11.25	11.62
5895	NASDAQ	PRDO	Thu, Aug 5, 2021	11.97	12.07	11.87	12.05
5894	NASDAQ	PRDO	Wed, Aug 4, 2021	12.00	12.12	11.75	11.80
5893	NASDAQ	PRDO	Tue, Aug 3, 2021	12.04	12.18	11.92	12.05
5892	NASDAQ	PRDO	Mon, Aug 2, 2021	11.86	12.12	11.79	12.01
5891	NASDAQ	PRDO	Fri, Jul 30, 2021	11.88	12.00	11.79	11.86
5890	NASDAQ	PRDO	Thu, Jul 29, 2021	11.78	12.09	11.74	11.95
5889	NASDAQ	PRDO	Wed, Jul 28, 2021	11.59	11.79	11.42	11.72
5888	NASDAQ	PRDO	Tue, Jul 27, 2021	11.42	11.42	11.08	11.37
5887	NASDAQ	PRDO	Mon, Jul 26, 2021	11.36	11.64	11.32	11.34
5886	NASDAQ	PRDO	Fri, Jul 23, 2021	11.41	11.63	11.26	11.39
5885	NASDAQ	PRDO	Thu, Jul 22, 2021	11.66	11.70	11.31	11.41
5884	NASDAQ	PRDO	Wed, Jul 21, 2021	11.62	11.76	11.55	11.66
5883	NASDAQ	PRDO	Tue, Jul 20, 2021	11.45	11.74	11.43	11.62
5882	NASDAQ	PRDO	Mon, Jul 19, 2021	11.38	11.60	11.26	11.38
5881	NASDAQ	PRDO	Fri, Jul 16, 2021	11.47	11.66	11.38	11.47
5880	NASDAQ	PRDO	Thu, Jul 15, 2021	11.68	11.74	11.32	11.46
5879	NASDAQ	PRDO	Wed, Jul 14, 2021	12.25	12.32	11.61	11.65
5878	NASDAQ	PRDO	Tue, Jul 13, 2021	12.21	12.45	12.19	12.23
5877	NASDAQ	PRDO	Mon, Jul 12, 2021	12.01	12.30	11.97	12.27
5876	NASDAQ	PRDO	Fri, Jul 9, 2021	11.96	12.16	11.93	12.14
5875	NASDAQ	PRDO	Thu, Jul 8, 2021	12.00	12.10	11.66	11.90
5874	NASDAQ	PRDO	Wed, Jul 7, 2021	12.24	12.39	12.10	12.13
5873	NASDAQ	PRDO	Tue, Jul 6, 2021	12.26	12.35	12.07	12.24
5872	NASDAQ	PRDO	Fri, Jul 2, 2021	12.36	12.46	12.21	12.41
5871	NASDAQ	PRDO	Thu, Jul 1, 2021	12.31	12.38	12.21	12.31
5870	NASDAQ	PRDO	Wed, Jun 30, 2021	12.28	12.36	12.15	12.27
5869	NASDAQ	PRDO	Tue, Jun 29, 2021	12.40	12.42	12.29	12.31
5868	NASDAQ	PRDO	Mon, Jun 28, 2021	12.80	12.80	12.14	12.34
5867	NASDAQ	PRDO	Fri, Jun 25, 2021	12.91	12.98	12.77	12.80
5866	NASDAQ	PRDO	Thu, Jun 24, 2021	12.60	12.83	12.48	12.81
5865	NASDAQ	PRDO	Wed, Jun 23, 2021	12.69	12.74	12.48	12.51
5864	NASDAQ	PRDO	Tue, Jun 22, 2021	13.05	13.08	12.65	12.68
5863	NASDAQ	PRDO	Mon, Jun 21, 2021	12.98	13.11	12.88	13.02
5862	NASDAQ	PRDO	Fri, Jun 18, 2021	12.77	13.15	12.62	12.87
5861	NASDAQ	PRDO	Thu, Jun 17, 2021	13.00	13.13	12.94	13.07
5860	NASDAQ	PRDO	Wed, Jun 16, 2021	13.00	13.15	12.95	12.99
5859	NASDAQ	PRDO	Tue, Jun 15, 2021	13.02	13.12	12.89	13.10
5858	NASDAQ	PRDO	Mon, Jun 14, 2021	12.75	13.07	12.75	12.97
5857	NASDAQ	PRDO	Fri, Jun 11, 2021	12.75	12.92	12.72	12.75
5856	NASDAQ	PRDO	Thu, Jun 10, 2021	12.63	12.81	12.60	12.76
5855	NASDAQ	PRDO	Wed, Jun 9, 2021	12.67	12.79	12.55	12.59
5854	NASDAQ	PRDO	Tue, Jun 8, 2021	12.57	12.75	12.46	12.63
5853	NASDAQ	PRDO	Mon, Jun 7, 2021	12.54	12.58	12.43	12.55
5852	NASDAQ	PRDO	Fri, Jun 4, 2021	12.41	12.51	12.26	12.46
5851	NASDAQ	PRDO	Thu, Jun 3, 2021	12.39	12.39	11.97	12.34
5850	NASDAQ	PRDO	Wed, Jun 2, 2021	12.60	12.65	12.39	12.47
5849	NASDAQ	PRDO	Tue, Jun 1, 2021	12.23	12.59	12.19	12.56
5848	NASDAQ	PRDO	Fri, May 28, 2021	12.35	12.38	12.06	12.19
5847	NASDAQ	PRDO	Thu, May 27, 2021	12.17	12.45	12.06	12.28
5846	NASDAQ	PRDO	Wed, May 26, 2021	11.83	12.14	11.71	12.11
5845	NASDAQ	PRDO	Tue, May 25, 2021	12.08	12.13	11.79	11.79
5844	NASDAQ	PRDO	Mon, May 24, 2021	12.17	12.28	11.83	11.98
5843	NASDAQ	PRDO	Fri, May 21, 2021	12.38	12.38	12.05	12.16
5842	NASDAQ	PRDO	Thu, May 20, 2021	12.12	12.30	12.10	12.25
5841	NASDAQ	PRDO	Wed, May 19, 2021	11.97	12.17	11.80	12.11
5840	NASDAQ	PRDO	Tue, May 18, 2021	12.23	12.45	12.12	12.14
5839	NASDAQ	PRDO	Mon, May 17, 2021	12.20	12.30	12.05	12.16
5838	NASDAQ	PRDO	Fri, May 14, 2021	11.95	12.22	11.87	12.20
5837	NASDAQ	PRDO	Thu, May 13, 2021	11.87	12.06	11.73	11.90
5836	NASDAQ	PRDO	Wed, May 12, 2021	11.75	11.96	11.75	11.84
5835	NASDAQ	PRDO	Tue, May 11, 2021	11.72	11.90	11.70	11.81
5834	NASDAQ	PRDO	Mon, May 10, 2021	12.05	12.13	11.77	11.99
5833	NASDAQ	PRDO	Fri, May 7, 2021	12.15	12.28	11.71	12.01
5832	NASDAQ	PRDO	Thu, May 6, 2021	11.86	12.04	11.70	12.02
5831	NASDAQ	PRDO	Wed, May 5, 2021	12.06	12.12	11.81	11.93
5830	NASDAQ	PRDO	Tue, May 4, 2021	12.10	12.34	12.01	12.05
5829	NASDAQ	PRDO	Mon, May 3, 2021	11.77	12.17	11.76	12.14
5828	NASDAQ	PRDO	Fri, Apr 30, 2021	11.89	12.09	11.55	11.66
5827	NASDAQ	PRDO	Thu, Apr 29, 2021	12.03	12.13	11.86	12.04
5826	NASDAQ	PRDO	Wed, Apr 28, 2021	11.96	12.05	11.70	11.98
5825	NASDAQ	PRDO	Tue, Apr 27, 2021	11.88	12.20	11.88	11.97
5824	NASDAQ	PRDO	Mon, Apr 26, 2021	12.00	12.18	11.96	12.09
5823	NASDAQ	PRDO	Fri, Apr 23, 2021	11.81	12.13	11.70	11.89
5822	NASDAQ	PRDO	Thu, Apr 22, 2021	11.83	11.89	11.64	11.78
5821	NASDAQ	PRDO	Wed, Apr 21, 2021	11.71	11.89	11.62	11.75
5820	NASDAQ	PRDO	Tue, Apr 20, 2021	11.65	11.88	11.46	11.71
5819	NASDAQ	PRDO	Mon, Apr 19, 2021	12.00	12.01	11.60	11.63
5818	NASDAQ	PRDO	Fri, Apr 16, 2021	11.88	11.99	11.62	11.99
5817	NASDAQ	PRDO	Thu, Apr 15, 2021	11.54	11.81	11.32	11.79
5816	NASDAQ	PRDO	Wed, Apr 14, 2021	11.42	11.61	11.40	11.43
5815	NASDAQ	PRDO	Tue, Apr 13, 2021	11.77	11.84	11.38	11.41
5814	NASDAQ	PRDO	Mon, Apr 12, 2021	12.02	12.21	11.75	11.76
5813	NASDAQ	PRDO	Fri, Apr 9, 2021	11.98	12.10	11.88	12.00
5812	NASDAQ	PRDO	Thu, Apr 8, 2021	12.05	12.05	11.85	11.96
5811	NASDAQ	PRDO	Wed, Apr 7, 2021	12.18	12.23	11.87	11.94
5810	NASDAQ	PRDO	Tue, Apr 6, 2021	12.59	12.61	12.19	12.24
5809	NASDAQ	PRDO	Mon, Apr 5, 2021	12.53	12.62	12.09	12.59
5808	NASDAQ	PRDO	Thu, Apr 1, 2021	12.04	12.45	12.04	12.45
5807	NASDAQ	PRDO	Wed, Mar 31, 2021	12.09	12.19	11.87	11.96
5806	NASDAQ	PRDO	Tue, Mar 30, 2021	11.99	12.26	11.80	11.95
5805	NASDAQ	PRDO	Mon, Mar 29, 2021	12.48	12.52	11.72	12.05
5804	NASDAQ	PRDO	Fri, Mar 26, 2021	12.31	12.61	12.04	12.60
5803	NASDAQ	PRDO	Thu, Mar 25, 2021	11.79	12.22	11.61	12.18
5802	NASDAQ	PRDO	Wed, Mar 24, 2021	12.10	12.30	11.79	11.79
5801	NASDAQ	PRDO	Tue, Mar 23, 2021	12.50	12.59	11.93	11.98
5800	NASDAQ	PRDO	Mon, Mar 22, 2021	12.77	13.05	12.45	12.55
5799	NASDAQ	PRDO	Fri, Mar 19, 2021	12.52	12.82	12.32	12.73
5798	NASDAQ	PRDO	Thu, Mar 18, 2021	12.52	12.77	12.38	12.64
5797	NASDAQ	PRDO	Wed, Mar 17, 2021	12.26	12.58	12.09	12.51
5796	NASDAQ	PRDO	Tue, Mar 16, 2021	12.53	12.53	12.16	12.33
5795	NASDAQ	PRDO	Mon, Mar 15, 2021	12.68	12.71	12.33	12.46
5794	NASDAQ	PRDO	Fri, Mar 12, 2021	12.71	12.81	12.40	12.70
5793	NASDAQ	PRDO	Thu, Mar 11, 2021	12.49	12.66	12.33	12.63
5792	NASDAQ	PRDO	Wed, Mar 10, 2021	12.30	12.66	12.18	12.36
5791	NASDAQ	PRDO	Tue, Mar 9, 2021	12.08	12.30	11.91	12.14
5790	NASDAQ	PRDO	Mon, Mar 8, 2021	11.91	11.99	11.62	11.82
5789	NASDAQ	PRDO	Fri, Mar 5, 2021	11.55	11.85	11.16	11.81
5788	NASDAQ	PRDO	Thu, Mar 4, 2021	11.71	11.83	11.38	11.43
5787	NASDAQ	PRDO	Wed, Mar 3, 2021	12.25	12.42	11.53	11.64
5786	NASDAQ	PRDO	Tue, Mar 2, 2021	13.11	13.34	12.22	12.26
5785	NASDAQ	PRDO	Mon, Mar 1, 2021	12.86	13.36	12.69	13.31
5784	NASDAQ	PRDO	Fri, Feb 26, 2021	12.79	13.28	12.67	12.87
5783	NASDAQ	PRDO	Thu, Feb 25, 2021	13.38	13.50	12.58	13.04
5782	NASDAQ	PRDO	Wed, Feb 24, 2021	13.74	13.95	13.70	13.86
5781	NASDAQ	PRDO	Tue, Feb 23, 2021	13.34	13.75	13.16	13.61
5780	NASDAQ	PRDO	Mon, Feb 22, 2021	13.41	13.86	13.12	13.37
5779	NASDAQ	PRDO	Fri, Feb 19, 2021	13.42	13.85	13.38	13.50
5778	NASDAQ	PRDO	Thu, Feb 18, 2021	12.53	13.57	12.53	13.44
5777	NASDAQ	PRDO	Wed, Feb 17, 2021	12.78	12.83	12.32	12.50
5776	NASDAQ	PRDO	Tue, Feb 16, 2021	13.48	13.61	12.75	12.78
5775	NASDAQ	PRDO	Fri, Feb 12, 2021	13.34	13.46	13.21	13.42
5774	NASDAQ	PRDO	Thu, Feb 11, 2021	13.37	13.76	13.21	13.31
5773	NASDAQ	PRDO	Wed, Feb 10, 2021	14.02	14.05	13.61	13.69
5772	NASDAQ	PRDO	Tue, Feb 9, 2021	13.67	13.98	13.60	13.84
5771	NASDAQ	PRDO	Mon, Feb 8, 2021	13.35	13.68	13.35	13.64
5770	NASDAQ	PRDO	Fri, Feb 5, 2021	13.42	13.46	12.99	13.28
5769	NASDAQ	PRDO	Thu, Feb 4, 2021	12.51	13.21	12.51	13.18
5768	NASDAQ	PRDO	Wed, Feb 3, 2021	12.59	12.90	12.40	12.46
5767	NASDAQ	PRDO	Tue, Feb 2, 2021	12.49	12.73	12.32	12.52
5766	NASDAQ	PRDO	Mon, Feb 1, 2021	11.91	12.36	11.86	12.31
5765	NASDAQ	PRDO	Fri, Jan 29, 2021	11.89	12.02	11.70	11.83
5764	NASDAQ	PRDO	Thu, Jan 28, 2021	12.47	12.47	11.79	11.85
5763	NASDAQ	PRDO	Wed, Jan 27, 2021	12.35	12.58	12.02	12.36
5762	NASDAQ	PRDO	Tue, Jan 26, 2021	12.68	12.80	12.34	12.36
5761	NASDAQ	PRDO	Mon, Jan 25, 2021	12.68	12.79	12.42	12.58
5760	NASDAQ	PRDO	Fri, Jan 22, 2021	12.70	12.78	12.52	12.67
5759	NASDAQ	PRDO	Thu, Jan 21, 2021	12.72	12.93	12.46	12.75
5758	NASDAQ	PRDO	Wed, Jan 20, 2021	12.87	13.03	12.48	12.64
5757	NASDAQ	PRDO	Tue, Jan 19, 2021	12.75	12.92	12.62	12.82
5756	NASDAQ	PRDO	Fri, Jan 15, 2021	12.79	13.19	12.68	12.79
5755	NASDAQ	PRDO	Thu, Jan 14, 2021	12.60	12.90	12.60	12.80
5754	NASDAQ	PRDO	Wed, Jan 13, 2021	12.80	12.95	12.48	12.54
5753	NASDAQ	PRDO	Tue, Jan 12, 2021	12.67	12.79	12.60	12.78
5752	NASDAQ	PRDO	Mon, Jan 11, 2021	12.48	12.72	12.48	12.67
5751	NASDAQ	PRDO	Fri, Jan 8, 2021	12.49	12.61	12.18	12.55
5750	NASDAQ	PRDO	Thu, Jan 7, 2021	12.62	12.71	12.46	12.49
5749	NASDAQ	PRDO	Wed, Jan 6, 2021	13.05	13.05	12.51	12.61
5748	NASDAQ	PRDO	Tue, Jan 5, 2021	12.45	13.01	12.45	12.90
5747	NASDAQ	PRDO	Mon, Jan 4, 2021	12.75	12.83	12.43	12.52
5746	NASDAQ	PRDO	Thu, Dec 31, 2020	12.51	12.73	12.40	12.63
5745	NASDAQ	PRDO	Wed, Dec 30, 2020	12.53	12.87	12.42	12.55
5744	NASDAQ	PRDO	Tue, Dec 29, 2020	13.40	13.40	12.41	12.55
5743	NASDAQ	PRDO	Mon, Dec 28, 2020	13.20	13.50	13.11	13.30
5742	NASDAQ	PRDO	Thu, Dec 24, 2020	13.00	13.33	12.95	13.10
5741	NASDAQ	PRDO	Wed, Dec 23, 2020	12.86	13.01	12.58	12.99
5740	NASDAQ	PRDO	Tue, Dec 22, 2020	13.02	13.08	12.69	12.77
5739	NASDAQ	PRDO	Mon, Dec 21, 2020	12.64	12.99	12.42	12.99
5738	NASDAQ	PRDO	Fri, Dec 18, 2020	12.40	12.95	12.40	12.91
5737	NASDAQ	PRDO	Thu, Dec 17, 2020	12.52	12.54	12.03	12.36
5736	NASDAQ	PRDO	Wed, Dec 16, 2020	12.86	12.92	12.45	12.46
5735	NASDAQ	PRDO	Tue, Dec 15, 2020	12.58	12.90	12.40	12.84
5734	NASDAQ	PRDO	Mon, Dec 14, 2020	12.55	12.76	12.43	12.52
5733	NASDAQ	PRDO	Fri, Dec 11, 2020	12.34	12.78	12.34	12.63
5732	NASDAQ	PRDO	Thu, Dec 10, 2020	12.38	12.58	12.16	12.47
5731	NASDAQ	PRDO	Wed, Dec 9, 2020	12.74	12.86	12.12	12.43
5730	NASDAQ	PRDO	Tue, Dec 8, 2020	12.05	12.80	11.86	12.66
5729	NASDAQ	PRDO	Mon, Dec 7, 2020	12.23	12.42	11.93	12.17
5728	NASDAQ	PRDO	Fri, Dec 4, 2020	11.90	12.35	11.88	12.29
5727	NASDAQ	PRDO	Thu, Dec 3, 2020	11.39	11.85	11.25	11.82
5726	NASDAQ	PRDO	Wed, Dec 2, 2020	11.53	11.62	11.35	11.46
5725	NASDAQ	PRDO	Tue, Dec 1, 2020	11.53	11.65	11.25	11.54
5724	NASDAQ	PRDO	Mon, Nov 30, 2020	11.55	11.61	11.25	11.34
5723	NASDAQ	PRDO	Fri, Nov 27, 2020	11.46	11.69	11.35	11.65
5722	NASDAQ	PRDO	Wed, Nov 25, 2020	11.54	11.60	11.12	11.38
5721	NASDAQ	PRDO	Tue, Nov 24, 2020	11.25	11.66	11.25	11.61
5720	NASDAQ	PRDO	Mon, Nov 23, 2020	11.11	11.25	10.95	11.19
5719	NASDAQ	PRDO	Fri, Nov 20, 2020	11.07	11.27	10.88	11.01
5718	NASDAQ	PRDO	Thu, Nov 19, 2020	11.11	11.30	11.01	11.16
5717	NASDAQ	PRDO	Wed, Nov 18, 2020	11.61	11.96	11.16	11.17
5716	NASDAQ	PRDO	Tue, Nov 17, 2020	11.81	11.90	11.46	11.60
5715	NASDAQ	PRDO	Mon, Nov 16, 2020	11.78	12.03	11.72	11.95
5714	NASDAQ	PRDO	Fri, Nov 13, 2020	11.26	11.69	11.25	11.61
5713	NASDAQ	PRDO	Thu, Nov 12, 2020	11.46	11.56	11.05	11.16
5712	NASDAQ	PRDO	Wed, Nov 11, 2020	11.85	11.95	11.26	11.49
5711	NASDAQ	PRDO	Tue, Nov 10, 2020	11.27	11.71	11.22	11.62
5710	NASDAQ	PRDO	Mon, Nov 9, 2020	11.57	12.03	11.11	11.15
5709	NASDAQ	PRDO	Fri, Nov 6, 2020	11.89	12.18	10.85	11.02
5708	NASDAQ	PRDO	Thu, Nov 5, 2020	12.42	12.59	11.88	11.95
5707	NASDAQ	PRDO	Wed, Nov 4, 2020	11.40	12.38	11.33	12.31
5706	NASDAQ	PRDO	Tue, Nov 3, 2020	11.71	11.91	11.25	11.46
5705	NASDAQ	PRDO	Mon, Nov 2, 2020	11.40	11.73	11.38	11.51
5704	NASDAQ	PRDO	Fri, Oct 30, 2020	11.14	11.35	11.04	11.29
5703	NASDAQ	PRDO	Thu, Oct 29, 2020	10.86	11.18	10.62	11.11
5702	NASDAQ	PRDO	Wed, Oct 28, 2020	11.10	11.38	10.82	10.94
5701	NASDAQ	PRDO	Tue, Oct 27, 2020	11.62	11.90	11.16	11.18
5700	NASDAQ	PRDO	Mon, Oct 26, 2020	11.90	11.91	11.56	11.68
5699	NASDAQ	PRDO	Fri, Oct 23, 2020	11.91	12.18	11.82	12.01
5698	NASDAQ	PRDO	Thu, Oct 22, 2020	12.05	12.12	11.78	11.81
5697	NASDAQ	PRDO	Wed, Oct 21, 2020	12.15	12.31	11.92	12.00
5696	NASDAQ	PRDO	Tue, Oct 20, 2020	12.15	12.42	12.10	12.14
5695	NASDAQ	PRDO	Mon, Oct 19, 2020	12.11	12.31	11.96	12.00
5694	NASDAQ	PRDO	Fri, Oct 16, 2020	12.53	12.53	12.16	12.16
5693	NASDAQ	PRDO	Thu, Oct 15, 2020	12.28	12.64	12.11	12.59
5692	NASDAQ	PRDO	Wed, Oct 14, 2020	12.32	12.55	12.28	12.43
5691	NASDAQ	PRDO	Tue, Oct 13, 2020	12.32	12.54	12.08	12.23
5690	NASDAQ	PRDO	Mon, Oct 12, 2020	12.44	12.45	12.15	12.43
5689	NASDAQ	PRDO	Fri, Oct 9, 2020	12.53	12.59	12.33	12.39
5688	NASDAQ	PRDO	Thu, Oct 8, 2020	12.23	12.53	12.20	12.49
5687	NASDAQ	PRDO	Wed, Oct 7, 2020	12.58	12.73	12.19	12.19
5686	NASDAQ	PRDO	Tue, Oct 6, 2020	12.48	12.85	12.42	12.56
5685	NASDAQ	PRDO	Mon, Oct 5, 2020	12.23	12.49	12.07	12.40
5684	NASDAQ	PRDO	Fri, Oct 2, 2020	12.02	12.32	11.95	12.21
5683	NASDAQ	PRDO	Thu, Oct 1, 2020	12.22	12.52	11.98	12.24
5682	NASDAQ	PRDO	Wed, Sep 30, 2020	12.30	12.48	12.19	12.24
5681	NASDAQ	PRDO	Tue, Sep 29, 2020	12.19	12.42	11.91	12.26
5680	NASDAQ	PRDO	Mon, Sep 28, 2020	12.12	12.44	12.12	12.22
5679	NASDAQ	PRDO	Fri, Sep 25, 2020	12.01	12.13	11.92	12.05
5678	NASDAQ	PRDO	Thu, Sep 24, 2020	12.00	12.22	11.90	12.02
5677	NASDAQ	PRDO	Wed, Sep 23, 2020	12.23	12.49	11.85	12.02
5676	NASDAQ	PRDO	Tue, Sep 22, 2020	12.09	12.28	11.87	12.23
5675	NASDAQ	PRDO	Mon, Sep 21, 2020	11.90	12.09	11.65	12.08
5674	NASDAQ	PRDO	Fri, Sep 18, 2020	12.29	12.29	11.92	12.04
5673	NASDAQ	PRDO	Thu, Sep 17, 2020	11.97	12.18	11.87	12.09
5672	NASDAQ	PRDO	Wed, Sep 16, 2020	11.68	12.27	11.41	12.10
5671	NASDAQ	PRDO	Tue, Sep 15, 2020	12.14	12.37	11.63	11.66
5670	NASDAQ	PRDO	Mon, Sep 14, 2020	12.10	12.55	11.78	12.02
5669	NASDAQ	PRDO	Fri, Sep 11, 2020	12.42	12.75	11.88	11.98
5668	NASDAQ	PRDO	Thu, Sep 10, 2020	12.95	13.17	12.39	12.43
5667	NASDAQ	PRDO	Wed, Sep 9, 2020	13.31	13.31	12.71	12.97
5666	NASDAQ	PRDO	Tue, Sep 8, 2020	13.45	13.57	13.16	13.25
5665	NASDAQ	PRDO	Fri, Sep 4, 2020	14.26	14.39	13.52	13.57
5664	NASDAQ	PRDO	Thu, Sep 3, 2020	14.55	14.55	14.09	14.11
5663	NASDAQ	PRDO	Wed, Sep 2, 2020	14.70	14.81	14.20	14.49
5662	NASDAQ	PRDO	Tue, Sep 1, 2020	14.37	14.70	14.23	14.70
5661	NASDAQ	PRDO	Mon, Aug 31, 2020	14.35	14.60	14.16	14.37
5660	NASDAQ	PRDO	Fri, Aug 28, 2020	14.43	14.43	14.10	14.37
5659	NASDAQ	PRDO	Thu, Aug 27, 2020	14.20	14.50	14.10	14.32
5658	NASDAQ	PRDO	Wed, Aug 26, 2020	14.26	14.30	14.08	14.14
5657	NASDAQ	PRDO	Tue, Aug 25, 2020	14.36	14.43	14.15	14.34
5656	NASDAQ	PRDO	Mon, Aug 24, 2020	14.52	14.55	14.09	14.24
5655	NASDAQ	PRDO	Fri, Aug 21, 2020	14.61	14.72	14.37	14.50
5654	NASDAQ	PRDO	Thu, Aug 20, 2020	14.95	15.00	14.63	14.66
5653	NASDAQ	PRDO	Wed, Aug 19, 2020	15.22	15.30	15.01	15.03
5652	NASDAQ	PRDO	Tue, Aug 18, 2020	15.59	15.79	15.09	15.27
5651	NASDAQ	PRDO	Mon, Aug 17, 2020	15.41	15.64	15.20	15.59
5650	NASDAQ	PRDO	Fri, Aug 14, 2020	15.25	15.43	15.07	15.36
5649	NASDAQ	PRDO	Thu, Aug 13, 2020	15.38	15.55	15.19	15.29
5648	NASDAQ	PRDO	Wed, Aug 12, 2020	16.61	16.71	15.39	15.43
5647	NASDAQ	PRDO	Tue, Aug 11, 2020	15.65	16.89	15.65	16.37
5646	NASDAQ	PRDO	Mon, Aug 10, 2020	15.02	15.63	14.97	15.53
5645	NASDAQ	PRDO	Fri, Aug 7, 2020	14.97	15.23	14.51	14.88
5644	NASDAQ	PRDO	Thu, Aug 6, 2020	14.41	14.86	13.82	14.20
5643	NASDAQ	PRDO	Wed, Aug 5, 2020	14.01	14.41	13.62	14.31
5642	NASDAQ	PRDO	Tue, Aug 4, 2020	13.30	14.00	13.30	13.83
5641	NASDAQ	PRDO	Mon, Aug 3, 2020	14.21	14.21	13.15	13.25
5640	NASDAQ	PRDO	Fri, Jul 31, 2020	14.54	14.54	14.21	14.40
5639	NASDAQ	PRDO	Thu, Jul 30, 2020	15.00	15.20	14.28	14.54
5638	NASDAQ	PRDO	Wed, Jul 29, 2020	16.30	16.70	15.13	15.27
5637	NASDAQ	PRDO	Tue, Jul 28, 2020	16.47	16.57	16.05	16.14
5636	NASDAQ	PRDO	Mon, Jul 27, 2020	16.35	16.59	16.21	16.52
5635	NASDAQ	PRDO	Fri, Jul 24, 2020	16.64	16.64	16.37	16.38
5634	NASDAQ	PRDO	Thu, Jul 23, 2020	16.97	17.08	16.58	16.75
5633	NASDAQ	PRDO	Wed, Jul 22, 2020	16.72	17.06	16.72	17.00
5632	NASDAQ	PRDO	Tue, Jul 21, 2020	16.86	16.97	16.64	16.71
5631	NASDAQ	PRDO	Mon, Jul 20, 2020	16.88	17.04	16.60	16.81
5630	NASDAQ	PRDO	Fri, Jul 17, 2020	16.97	17.32	16.69	16.78
5629	NASDAQ	PRDO	Thu, Jul 16, 2020	17.12	17.43	16.76	17.01
5628	NASDAQ	PRDO	Wed, Jul 15, 2020	16.55	17.49	16.41	17.36
5627	NASDAQ	PRDO	Tue, Jul 14, 2020	15.92	16.27	15.56	16.23
5626	NASDAQ	PRDO	Mon, Jul 13, 2020	16.25	16.37	15.67	15.70
5625	NASDAQ	PRDO	Fri, Jul 10, 2020	15.46	16.13	15.40	16.12
5624	NASDAQ	PRDO	Thu, Jul 9, 2020	16.18	16.30	15.51	15.51
5623	NASDAQ	PRDO	Wed, Jul 8, 2020	16.14	16.44	15.97	16.27
5622	NASDAQ	PRDO	Tue, Jul 7, 2020	16.41	16.65	16.12	16.16
5621	NASDAQ	PRDO	Mon, Jul 6, 2020	16.29	16.73	16.21	16.54
5620	NASDAQ	PRDO	Thu, Jul 2, 2020	16.32	16.46	15.90	16.00
5619	NASDAQ	PRDO	Wed, Jul 1, 2020	15.88	16.32	15.88	16.13
5618	NASDAQ	PRDO	Tue, Jun 30, 2020	15.66	16.21	15.66	15.93
5617	NASDAQ	PRDO	Mon, Jun 29, 2020	15.22	16.01	15.08	15.68
5616	NASDAQ	PRDO	Fri, Jun 26, 2020	15.01	15.25	14.55	15.10
5615	NASDAQ	PRDO	Thu, Jun 25, 2020	15.53	15.66	14.91	15.14
5614	NASDAQ	PRDO	Wed, Jun 24, 2020	15.63	15.93	15.44	15.67
5613	NASDAQ	PRDO	Tue, Jun 23, 2020	16.00	16.11	15.67	15.86
5612	NASDAQ	PRDO	Mon, Jun 22, 2020	15.71	15.71	15.17	15.69
5611	NASDAQ	PRDO	Fri, Jun 19, 2020	15.88	15.97	15.32	15.70
5610	NASDAQ	PRDO	Thu, Jun 18, 2020	15.62	15.88	15.52	15.80
5609	NASDAQ	PRDO	Wed, Jun 17, 2020	15.98	16.12	15.50	15.62
5608	NASDAQ	PRDO	Tue, Jun 16, 2020	16.50	16.50	15.77	16.01
5607	NASDAQ	PRDO	Mon, Jun 15, 2020	15.30	16.10	15.14	16.01
5606	NASDAQ	PRDO	Fri, Jun 12, 2020	16.34	16.47	15.51	15.85
5605	NASDAQ	PRDO	Thu, Jun 11, 2020	16.84	16.84	15.72	15.73
5604	NASDAQ	PRDO	Wed, Jun 10, 2020	17.20	17.71	16.92	17.39
5603	NASDAQ	PRDO	Tue, Jun 9, 2020	17.06	17.49	16.78	17.28
5602	NASDAQ	PRDO	Mon, Jun 8, 2020	17.00	17.43	16.84	17.34
5601	NASDAQ	PRDO	Fri, Jun 5, 2020	17.47	17.77	16.77	16.80
5600	NASDAQ	PRDO	Thu, Jun 4, 2020	16.68	17.32	16.55	17.16
5599	NASDAQ	PRDO	Wed, Jun 3, 2020	16.91	17.10	16.77	16.84
5598	NASDAQ	PRDO	Tue, Jun 2, 2020	16.53	16.99	16.42	16.60
5597	NASDAQ	PRDO	Mon, Jun 1, 2020	16.41	16.69	16.24	16.39
5596	NASDAQ	PRDO	Fri, May 29, 2020	16.13	16.35	15.70	16.28
5595	NASDAQ	PRDO	Thu, May 28, 2020	17.00	17.03	16.28	16.36
5594	NASDAQ	PRDO	Wed, May 27, 2020	16.60	16.99	16.02	16.92
5593	NASDAQ	PRDO	Tue, May 26, 2020	16.72	16.80	16.30	16.39
5592	NASDAQ	PRDO	Fri, May 22, 2020	16.36	16.40	15.93	16.20
5591	NASDAQ	PRDO	Thu, May 21, 2020	15.84	16.50	15.72	16.24
5590	NASDAQ	PRDO	Wed, May 20, 2020	16.17	16.50	15.60	15.75
5589	NASDAQ	PRDO	Tue, May 19, 2020	15.93	16.52	15.91	16.01
5588	NASDAQ	PRDO	Mon, May 18, 2020	15.25	16.12	15.23	16.10
5587	NASDAQ	PRDO	Fri, May 15, 2020	14.69	15.09	14.55	14.76
5586	NASDAQ	PRDO	Thu, May 14, 2020	14.11	14.62	13.59	14.61
5585	NASDAQ	PRDO	Wed, May 13, 2020	14.52	14.69	14.19	14.52
5584	NASDAQ	PRDO	Tue, May 12, 2020	14.75	15.18	14.56	14.64
5583	NASDAQ	PRDO	Mon, May 11, 2020	14.36	14.80	13.89	14.73
5582	NASDAQ	PRDO	Fri, May 8, 2020	15.00	15.00	13.46	14.74
5581	NASDAQ	PRDO	Thu, May 7, 2020	12.95	13.06	12.61	13.06
5580	NASDAQ	PRDO	Wed, May 6, 2020	13.00	13.00	12.59	12.77
5579	NASDAQ	PRDO	Tue, May 5, 2020	12.91	13.37	12.90	12.95
5578	NASDAQ	PRDO	Mon, May 4, 2020	12.81	12.81	12.41	12.77
5577	NASDAQ	PRDO	Fri, May 1, 2020	13.15	13.15	12.43	13.00
5576	NASDAQ	PRDO	Thu, Apr 30, 2020	13.17	13.22	12.75	13.00
5575	NASDAQ	PRDO	Wed, Apr 29, 2020	13.05	13.82	12.93	13.50
5574	NASDAQ	PRDO	Tue, Apr 28, 2020	12.93	12.93	12.50	12.68
5573	NASDAQ	PRDO	Mon, Apr 27, 2020	12.00	12.73	11.86	12.49
5572	NASDAQ	PRDO	Fri, Apr 24, 2020	11.89	12.09	11.68	11.92
5571	NASDAQ	PRDO	Thu, Apr 23, 2020	12.00	12.10	11.61	11.85
5570	NASDAQ	PRDO	Wed, Apr 22, 2020	12.05	12.10	11.80	11.92
5569	NASDAQ	PRDO	Tue, Apr 21, 2020	11.59	12.03	11.37	11.80
5568	NASDAQ	PRDO	Mon, Apr 20, 2020	11.40	11.97	11.24	11.93
5567	NASDAQ	PRDO	Fri, Apr 17, 2020	11.13	11.75	11.04	11.68
5566	NASDAQ	PRDO	Thu, Apr 16, 2020	11.35	11.98	10.48	10.73
5565	NASDAQ	PRDO	Wed, Apr 15, 2020	11.63	12.48	11.15	11.34
5564	NASDAQ	PRDO	Tue, Apr 14, 2020	12.43	12.57	12.00	12.11
5563	NASDAQ	PRDO	Mon, Apr 13, 2020	12.19	12.35	11.82	12.25
5562	NASDAQ	PRDO	Thu, Apr 9, 2020	12.00	12.46	11.47	12.27
5561	NASDAQ	PRDO	Wed, Apr 8, 2020	11.41	11.86	11.17	11.75
5560	NASDAQ	PRDO	Tue, Apr 7, 2020	11.53	11.99	10.97	11.21
5559	NASDAQ	PRDO	Mon, Apr 6, 2020	10.77	11.20	10.49	11.13
5558	NASDAQ	PRDO	Fri, Apr 3, 2020	10.54	10.95	9.94	10.45
5557	NASDAQ	PRDO	Thu, Apr 2, 2020	9.96	10.69	9.96	10.52
5556	NASDAQ	PRDO	Wed, Apr 1, 2020	10.45	11.16	9.79	10.05
5555	NASDAQ	PRDO	Tue, Mar 31, 2020	10.23	11.14	9.89	10.79
5554	NASDAQ	PRDO	Mon, Mar 30, 2020	10.48	10.52	9.65	10.26
5553	NASDAQ	PRDO	Fri, Mar 27, 2020	9.94	10.66	9.81	10.47
5552	NASDAQ	PRDO	Thu, Mar 26, 2020	9.75	10.40	9.61	10.25
5551	NASDAQ	PRDO	Wed, Mar 25, 2020	9.70	10.11	8.96	9.67
5550	NASDAQ	PRDO	Tue, Mar 24, 2020	9.27	9.70	8.76	9.62
5549	NASDAQ	PRDO	Mon, Mar 23, 2020	8.86	9.10	8.42	8.87
5548	NASDAQ	PRDO	Fri, Mar 20, 2020	8.50	9.49	8.50	8.76
5547	NASDAQ	PRDO	Thu, Mar 19, 2020	7.87	8.71	7.55	8.49
5546	NASDAQ	PRDO	Wed, Mar 18, 2020	9.10	9.62	7.11	7.96
5545	NASDAQ	PRDO	Tue, Mar 17, 2020	10.46	10.75	9.00	9.64
5544	NASDAQ	PRDO	Mon, Mar 16, 2020	10.86	10.86	9.91	10.24
5543	NASDAQ	PRDO	Fri, Mar 13, 2020	10.80	11.06	9.84	11.03
5542	NASDAQ	PRDO	Thu, Mar 12, 2020	9.76	11.29	9.47	10.38
5541	NASDAQ	PRDO	Wed, Mar 11, 2020	10.79	11.00	10.19	10.66
5540	NASDAQ	PRDO	Tue, Mar 10, 2020	13.38	13.42	10.99	11.11
5539	NASDAQ	PRDO	Mon, Mar 9, 2020	14.30	14.79	12.20	12.85
5538	NASDAQ	PRDO	Fri, Mar 6, 2020	14.75	15.50	14.75	15.23
5537	NASDAQ	PRDO	Thu, Mar 5, 2020	15.62	15.75	15.09	15.35
5536	NASDAQ	PRDO	Wed, Mar 4, 2020	15.25	16.02	15.25	15.98
5535	NASDAQ	PRDO	Tue, Mar 3, 2020	14.93	15.58	14.77	15.22
5534	NASDAQ	PRDO	Mon, Mar 2, 2020	14.99	15.21	14.38	14.84
5533	NASDAQ	PRDO	Fri, Feb 28, 2020	14.12	14.93	13.92	14.93
5532	NASDAQ	PRDO	Thu, Feb 27, 2020	14.58	14.82	14.02	14.28
5531	NASDAQ	PRDO	Wed, Feb 26, 2020	15.80	15.95	14.93	15.00
5530	NASDAQ	PRDO	Tue, Feb 25, 2020	16.81	16.86	15.65	15.66
5529	NASDAQ	PRDO	Mon, Feb 24, 2020	17.45	17.69	16.32	16.80
5528	NASDAQ	PRDO	Fri, Feb 21, 2020	17.83	18.48	17.70	18.17
5527	NASDAQ	PRDO	Thu, Feb 20, 2020	19.49	19.85	17.31	17.83
5526	NASDAQ	PRDO	Wed, Feb 19, 2020	17.71	18.42	17.71	18.39
5525	NASDAQ	PRDO	Tue, Feb 18, 2020	17.82	17.91	17.75	17.77
5524	NASDAQ	PRDO	Fri, Feb 14, 2020	18.05	18.23	17.79	17.83
5523	NASDAQ	PRDO	Thu, Feb 13, 2020	17.72	18.15	17.70	18.12
5522	NASDAQ	PRDO	Wed, Feb 12, 2020	17.43	17.79	17.34	17.79
5521	NASDAQ	PRDO	Tue, Feb 11, 2020	17.53	17.70	17.28	17.32
5520	NASDAQ	PRDO	Mon, Feb 10, 2020	17.50	17.64	17.34	17.47
5519	NASDAQ	PRDO	Fri, Feb 7, 2020	17.79	17.83	17.50	17.54
5518	NASDAQ	PRDO	Thu, Feb 6, 2020	17.90	18.10	17.79	17.92
5517	NASDAQ	PRDO	Wed, Feb 5, 2020	17.56	17.85	17.30	17.84
5516	NASDAQ	PRDO	Tue, Feb 4, 2020	18.27	18.33	17.40	17.44
5515	NASDAQ	PRDO	Mon, Feb 3, 2020	17.94	18.09	17.71	18.03
5514	NASDAQ	PRDO	Fri, Jan 31, 2020	18.14	18.37	17.75	17.78
5513	NASDAQ	PRDO	Thu, Jan 30, 2020	18.13	18.46	18.08	18.23
5512	NASDAQ	PRDO	Wed, Jan 29, 2020	18.50	18.56	18.23	18.25
5511	NASDAQ	PRDO	Tue, Jan 28, 2020	18.31	18.65	18.31	18.43
5510	NASDAQ	PRDO	Mon, Jan 27, 2020	17.91	18.51	17.75	18.31
5509	NASDAQ	PRDO	Fri, Jan 24, 2020	19.00	19.00	18.15	18.28
5508	NASDAQ	PRDO	Thu, Jan 23, 2020	18.96	19.10	18.72	19.02
5507	NASDAQ	PRDO	Wed, Jan 22, 2020	19.05	19.30	19.01	19.11
5506	NASDAQ	PRDO	Tue, Jan 21, 2020	18.75	19.02	18.60	18.98
5505	NASDAQ	PRDO	Fri, Jan 17, 2020	19.24	19.24	18.70	18.83
5504	NASDAQ	PRDO	Thu, Jan 16, 2020	18.86	19.26	18.81	19.11
5503	NASDAQ	PRDO	Wed, Jan 15, 2020	18.43	18.80	18.40	18.75
5502	NASDAQ	PRDO	Tue, Jan 14, 2020	18.33	18.57	18.27	18.54
5501	NASDAQ	PRDO	Mon, Jan 13, 2020	18.06	18.39	18.00	18.36
5500	NASDAQ	PRDO	Fri, Jan 10, 2020	18.36	18.38	18.02	18.14
5499	NASDAQ	PRDO	Thu, Jan 9, 2020	18.72	18.79	18.34	18.42
5498	NASDAQ	PRDO	Wed, Jan 8, 2020	18.86	18.98	18.52	18.67
5497	NASDAQ	PRDO	Tue, Jan 7, 2020	18.73	19.08	18.54	18.86
5496	NASDAQ	PRDO	Mon, Jan 6, 2020	18.47	18.76	18.06	18.74
5495	NASDAQ	PRDO	Fri, Jan 3, 2020	18.35	18.75	17.89	18.60
5494	NASDAQ	PRDO	Thu, Jan 2, 2020	18.75	18.75	18.02	18.62
5493	NASDAQ	PRDO	Tue, Dec 31, 2019	18.35	18.46	18.08	18.39
5492	NASDAQ	PRDO	Mon, Dec 30, 2019	18.58	18.58	18.26	18.31
5491	NASDAQ	PRDO	Fri, Dec 27, 2019	18.82	18.85	18.43	18.49
5490	NASDAQ	PRDO	Thu, Dec 26, 2019	18.63	18.93	18.55	18.83
5489	NASDAQ	PRDO	Tue, Dec 24, 2019	18.22	18.58	18.22	18.52
5488	NASDAQ	PRDO	Mon, Dec 23, 2019	18.40	18.52	18.24	18.47
5487	NASDAQ	PRDO	Fri, Dec 20, 2019	18.22	18.40	18.09	18.38
5486	NASDAQ	PRDO	Thu, Dec 19, 2019	18.24	18.24	17.99	18.14
5485	NASDAQ	PRDO	Wed, Dec 18, 2019	18.00	18.23	17.98	18.20
5484	NASDAQ	PRDO	Tue, Dec 17, 2019	17.65	17.95	17.64	17.94
5483	NASDAQ	PRDO	Mon, Dec 16, 2019	17.52	17.85	17.46	17.72
5482	NASDAQ	PRDO	Fri, Dec 13, 2019	17.43	17.53	17.28	17.34
5481	NASDAQ	PRDO	Thu, Dec 12, 2019	17.22	17.55	17.10	17.50
5480	NASDAQ	PRDO	Wed, Dec 11, 2019	17.23	17.30	17.11	17.16
5479	NASDAQ	PRDO	Tue, Dec 10, 2019	17.12	17.44	17.08	17.27
5478	NASDAQ	PRDO	Mon, Dec 9, 2019	16.78	17.12	16.70	17.10
5477	NASDAQ	PRDO	Fri, Dec 6, 2019	16.72	17.07	16.68	16.79
5476	NASDAQ	PRDO	Thu, Dec 5, 2019	16.85	16.97	16.47	16.56
5475	NASDAQ	PRDO	Wed, Dec 4, 2019	16.70	16.91	16.68	16.82
5474	NASDAQ	PRDO	Tue, Dec 3, 2019	16.28	16.79	16.04	16.69
5473	NASDAQ	PRDO	Mon, Dec 2, 2019	16.68	16.76	16.36	16.39
5472	NASDAQ	PRDO	Fri, Nov 29, 2019	16.68	16.89	16.61	16.68
5471	NASDAQ	PRDO	Wed, Nov 27, 2019	16.80	16.86	16.53	16.75
5470	NASDAQ	PRDO	Tue, Nov 26, 2019	16.58	17.00	16.53	16.71
5469	NASDAQ	PRDO	Mon, Nov 25, 2019	16.36	16.56	16.25	16.54
5468	NASDAQ	PRDO	Fri, Nov 22, 2019	16.32	16.34	15.97	16.32
5467	NASDAQ	PRDO	Thu, Nov 21, 2019	16.73	16.75	16.19	16.23
5466	NASDAQ	PRDO	Wed, Nov 20, 2019	17.00	17.00	16.46	16.68
5465	NASDAQ	PRDO	Tue, Nov 19, 2019	16.97	17.33	16.89	17.13
5464	NASDAQ	PRDO	Mon, Nov 18, 2019	16.90	17.07	16.89	16.92
5463	NASDAQ	PRDO	Fri, Nov 15, 2019	16.65	16.85	16.58	16.85
5462	NASDAQ	PRDO	Thu, Nov 14, 2019	16.54	16.70	16.46	16.55
5461	NASDAQ	PRDO	Wed, Nov 13, 2019	16.74	16.75	16.30	16.48
5460	NASDAQ	PRDO	Tue, Nov 12, 2019	16.33	16.79	16.33	16.78
5459	NASDAQ	PRDO	Mon, Nov 11, 2019	16.19	16.54	15.82	16.31
5458	NASDAQ	PRDO	Fri, Nov 8, 2019	15.84	16.19	15.58	16.06
5457	NASDAQ	PRDO	Thu, Nov 7, 2019	17.00	17.80	15.73	15.90
5456	NASDAQ	PRDO	Wed, Nov 6, 2019	15.01	15.24	14.84	14.90
5455	NASDAQ	PRDO	Tue, Nov 5, 2019	15.04	15.17	14.93	15.03
5454	NASDAQ	PRDO	Mon, Nov 4, 2019	14.51	14.96	14.42	14.88
5453	NASDAQ	PRDO	Fri, Nov 1, 2019	14.19	14.46	14.15	14.36
5452	NASDAQ	PRDO	Thu, Oct 31, 2019	14.18	14.26	14.10	14.16
5451	NASDAQ	PRDO	Wed, Oct 30, 2019	14.78	14.78	14.16	14.20
5450	NASDAQ	PRDO	Tue, Oct 29, 2019	14.65	14.89	14.62	14.78
5449	NASDAQ	PRDO	Mon, Oct 28, 2019	14.61	14.92	14.61	14.67
5448	NASDAQ	PRDO	Fri, Oct 25, 2019	14.72	14.85	14.59	14.61
5447	NASDAQ	PRDO	Thu, Oct 24, 2019	14.81	14.96	14.54	14.75
5446	NASDAQ	PRDO	Wed, Oct 23, 2019	14.78	15.01	14.69	14.82
5445	NASDAQ	PRDO	Tue, Oct 22, 2019	14.86	15.09	14.68	14.82
5444	NASDAQ	PRDO	Mon, Oct 21, 2019	14.55	14.95	14.55	14.76
5443	NASDAQ	PRDO	Fri, Oct 18, 2019	15.01	15.12	14.39	14.52
5442	NASDAQ	PRDO	Thu, Oct 17, 2019	15.04	15.26	14.82	15.12
5441	NASDAQ	PRDO	Wed, Oct 16, 2019	14.84	15.08	14.76	15.04
5440	NASDAQ	PRDO	Tue, Oct 15, 2019	14.92	15.11	14.82	14.89
5439	NASDAQ	PRDO	Mon, Oct 14, 2019	15.20	15.35	14.86	14.88
5438	NASDAQ	PRDO	Fri, Oct 11, 2019	14.92	15.35	14.90	15.23
5437	NASDAQ	PRDO	Thu, Oct 10, 2019	15.26	15.32	14.74	14.81
5436	NASDAQ	PRDO	Wed, Oct 9, 2019	15.25	15.41	15.18	15.28
5435	NASDAQ	PRDO	Tue, Oct 8, 2019	15.74	15.96	15.14	15.20
5434	NASDAQ	PRDO	Mon, Oct 7, 2019	15.66	15.95	15.61	15.81
5433	NASDAQ	PRDO	Fri, Oct 4, 2019	16.10	16.15	15.51	15.74
5432	NASDAQ	PRDO	Thu, Oct 3, 2019	16.03	16.15	15.87	16.12
5431	NASDAQ	PRDO	Wed, Oct 2, 2019	15.90	16.16	15.90	16.08
5430	NASDAQ	PRDO	Tue, Oct 1, 2019	15.99	16.38	15.94	16.00
5429	NASDAQ	PRDO	Mon, Sep 30, 2019	15.76	15.92	15.64	15.89
5428	NASDAQ	PRDO	Fri, Sep 27, 2019	15.93	16.00	15.67	15.76
5427	NASDAQ	PRDO	Thu, Sep 26, 2019	16.05	16.15	15.70	15.83
5426	NASDAQ	PRDO	Wed, Sep 25, 2019	16.95	17.09	16.03	16.07
5425	NASDAQ	PRDO	Tue, Sep 24, 2019	16.93	17.03	16.57	16.97
5424	NASDAQ	PRDO	Mon, Sep 23, 2019	16.84	17.06	16.62	16.94
5423	NASDAQ	PRDO	Fri, Sep 20, 2019	17.76	17.82	16.49	16.90
5422	NASDAQ	PRDO	Thu, Sep 19, 2019	18.79	18.89	17.78	17.80
5421	NASDAQ	PRDO	Wed, Sep 18, 2019	19.23	19.23	18.69	18.81
5420	NASDAQ	PRDO	Tue, Sep 17, 2019	19.03	19.27	18.71	19.19
5419	NASDAQ	PRDO	Mon, Sep 16, 2019	19.41	19.48	18.92	19.05
5418	NASDAQ	PRDO	Fri, Sep 13, 2019	19.53	19.81	19.47	19.57
5417	NASDAQ	PRDO	Thu, Sep 12, 2019	19.40	19.62	19.11	19.45
5416	NASDAQ	PRDO	Wed, Sep 11, 2019	19.41	19.70	19.30	19.35
5415	NASDAQ	PRDO	Tue, Sep 10, 2019	19.97	19.97	19.19	19.35
5414	NASDAQ	PRDO	Mon, Sep 9, 2019	20.02	20.28	19.76	19.97
5413	NASDAQ	PRDO	Fri, Sep 6, 2019	20.42	20.42	19.92	19.95
5412	NASDAQ	PRDO	Thu, Sep 5, 2019	20.26	20.67	20.12	20.40
5411	NASDAQ	PRDO	Wed, Sep 4, 2019	20.47	20.59	19.81	20.05
5410	NASDAQ	PRDO	Tue, Sep 3, 2019	20.49	20.61	20.06	20.27
5409	NASDAQ	PRDO	Fri, Aug 30, 2019	20.85	20.91	20.26	20.51
5408	NASDAQ	PRDO	Thu, Aug 29, 2019	21.03	21.08	20.76	20.83
5407	NASDAQ	PRDO	Wed, Aug 28, 2019	20.58	21.19	20.36	20.77
5406	NASDAQ	PRDO	Tue, Aug 27, 2019	21.40	21.57	20.34	20.57
5405	NASDAQ	PRDO	Mon, Aug 26, 2019	21.35	21.74	20.52	21.34
5404	NASDAQ	PRDO	Fri, Aug 23, 2019	22.32	22.35	21.50	21.55
5403	NASDAQ	PRDO	Thu, Aug 22, 2019	22.31	22.50	22.09	22.28
5402	NASDAQ	PRDO	Wed, Aug 21, 2019	22.16	22.44	21.95	22.28
5401	NASDAQ	PRDO	Tue, Aug 20, 2019	22.04	22.34	21.90	21.97
5400	NASDAQ	PRDO	Mon, Aug 19, 2019	22.25	22.44	21.97	21.99
5399	NASDAQ	PRDO	Fri, Aug 16, 2019	22.06	22.25	21.86	22.08
5398	NASDAQ	PRDO	Thu, Aug 15, 2019	21.51	21.97	21.40	21.88
5397	NASDAQ	PRDO	Wed, Aug 14, 2019	21.69	21.71	21.08	21.41
5396	NASDAQ	PRDO	Tue, Aug 13, 2019	21.19	21.98	21.12	21.94
5395	NASDAQ	PRDO	Mon, Aug 12, 2019	21.34	21.56	20.89	21.29
5394	NASDAQ	PRDO	Fri, Aug 9, 2019	21.20	22.26	21.17	21.89
5393	NASDAQ	PRDO	Thu, Aug 8, 2019	19.85	21.79	19.20	21.14
5392	NASDAQ	PRDO	Wed, Aug 7, 2019	18.51	18.63	18.16	18.37
5391	NASDAQ	PRDO	Tue, Aug 6, 2019	18.57	18.93	18.42	18.74
5390	NASDAQ	PRDO	Mon, Aug 5, 2019	18.40	18.67	18.22	18.49
5389	NASDAQ	PRDO	Fri, Aug 2, 2019	19.09	19.14	18.01	18.67
5388	NASDAQ	PRDO	Thu, Aug 1, 2019	18.92	19.35	18.83	19.15
5387	NASDAQ	PRDO	Wed, Jul 31, 2019	19.70	19.70	18.56	18.96
5386	NASDAQ	PRDO	Tue, Jul 30, 2019	19.42	19.80	19.38	19.70
5385	NASDAQ	PRDO	Mon, Jul 29, 2019	19.40	19.63	19.35	19.50
5384	NASDAQ	PRDO	Fri, Jul 26, 2019	19.44	19.67	19.32	19.44
5383	NASDAQ	PRDO	Thu, Jul 25, 2019	19.68	19.77	19.42	19.43
5382	NASDAQ	PRDO	Wed, Jul 24, 2019	19.59	19.78	19.38	19.69
5381	NASDAQ	PRDO	Tue, Jul 23, 2019	19.84	19.84	19.48	19.64
5380	NASDAQ	PRDO	Mon, Jul 22, 2019	19.91	20.00	19.63	19.69
5379	NASDAQ	PRDO	Fri, Jul 19, 2019	20.05	20.24	19.30	19.86
5378	NASDAQ	PRDO	Thu, Jul 18, 2019	19.86	20.14	19.59	20.09
5377	NASDAQ	PRDO	Wed, Jul 17, 2019	19.81	19.96	19.71	19.83
5376	NASDAQ	PRDO	Tue, Jul 16, 2019	19.89	20.00	19.68	19.80
5375	NASDAQ	PRDO	Mon, Jul 15, 2019	19.74	19.94	19.58	19.89
5374	NASDAQ	PRDO	Fri, Jul 12, 2019	19.53	19.82	19.51	19.73
5373	NASDAQ	PRDO	Thu, Jul 11, 2019	19.39	19.60	19.30	19.56
5372	NASDAQ	PRDO	Wed, Jul 10, 2019	19.24	19.48	19.24	19.39
5371	NASDAQ	PRDO	Tue, Jul 9, 2019	19.19	19.35	19.03	19.18
5370	NASDAQ	PRDO	Mon, Jul 8, 2019	19.27	19.57	19.08	19.21
5369	NASDAQ	PRDO	Fri, Jul 5, 2019	19.17	19.39	18.98	19.34
5368	NASDAQ	PRDO	Wed, Jul 3, 2019	19.36	19.48	19.11	19.15
5367	NASDAQ	PRDO	Tue, Jul 2, 2019	18.95	19.35	18.75	19.34
5366	NASDAQ	PRDO	Mon, Jul 1, 2019	19.05	19.25	18.77	18.82
5365	NASDAQ	PRDO	Fri, Jun 28, 2019	18.76	19.28	18.76	19.07
5364	NASDAQ	PRDO	Thu, Jun 27, 2019	18.44	18.93	18.41	18.83
5363	NASDAQ	PRDO	Wed, Jun 26, 2019	18.82	18.97	18.23	18.42
5362	NASDAQ	PRDO	Tue, Jun 25, 2019	18.55	18.76	18.26	18.71
5361	NASDAQ	PRDO	Mon, Jun 24, 2019	18.75	18.79	18.47	18.55
5360	NASDAQ	PRDO	Fri, Jun 21, 2019	19.13	19.13	18.64	18.71
5359	NASDAQ	PRDO	Thu, Jun 20, 2019	19.44	19.51	19.14	19.21
5358	NASDAQ	PRDO	Wed, Jun 19, 2019	19.31	19.41	18.97	19.37
5357	NASDAQ	PRDO	Tue, Jun 18, 2019	19.56	19.69	19.00	19.19
5356	NASDAQ	PRDO	Mon, Jun 17, 2019	19.63	19.65	19.39	19.50
5355	NASDAQ	PRDO	Fri, Jun 14, 2019	19.63	19.71	19.49	19.58
5354	NASDAQ	PRDO	Thu, Jun 13, 2019	19.68	19.83	19.61	19.68
5353	NASDAQ	PRDO	Wed, Jun 12, 2019	19.53	19.66	19.36	19.61
5352	NASDAQ	PRDO	Tue, Jun 11, 2019	19.89	20.00	19.52	19.56
5351	NASDAQ	PRDO	Mon, Jun 10, 2019	20.10	20.39	19.71	19.78
5350	NASDAQ	PRDO	Fri, Jun 7, 2019	20.05	20.25	19.99	20.05
5349	NASDAQ	PRDO	Thu, Jun 6, 2019	20.00	20.21	19.78	19.94
5348	NASDAQ	PRDO	Wed, Jun 5, 2019	19.45	20.03	19.37	20.02
5347	NASDAQ	PRDO	Tue, Jun 4, 2019	19.11	19.43	19.07	19.43
5346	NASDAQ	PRDO	Mon, Jun 3, 2019	18.81	19.25	18.81	19.00
5345	NASDAQ	PRDO	Fri, May 31, 2019	18.92	19.00	18.29	18.77
5344	NASDAQ	PRDO	Thu, May 30, 2019	19.21	19.30	18.91	19.05
5343	NASDAQ	PRDO	Wed, May 29, 2019	19.19	19.29	18.94	19.15
5342	NASDAQ	PRDO	Tue, May 28, 2019	19.17	19.50	19.12	19.26
5341	NASDAQ	PRDO	Fri, May 24, 2019	18.38	19.21	18.38	19.20
5340	NASDAQ	PRDO	Thu, May 23, 2019	18.07	18.37	17.97	18.30
5339	NASDAQ	PRDO	Wed, May 22, 2019	18.20	18.29	18.06	18.17
5338	NASDAQ	PRDO	Tue, May 21, 2019	18.32	18.38	18.18	18.21
5337	NASDAQ	PRDO	Mon, May 20, 2019	18.01	18.36	18.01	18.32
5336	NASDAQ	PRDO	Fri, May 17, 2019	18.36	18.42	18.09	18.11
5335	NASDAQ	PRDO	Thu, May 16, 2019	18.42	18.68	18.36	18.40
5334	NASDAQ	PRDO	Wed, May 15, 2019	18.40	18.49	18.14	18.39
5333	NASDAQ	PRDO	Tue, May 14, 2019	18.50	18.66	18.33	18.43
5332	NASDAQ	PRDO	Mon, May 13, 2019	18.71	18.83	18.30	18.54
5331	NASDAQ	PRDO	Fri, May 10, 2019	19.30	19.38	18.58	18.95
5330	NASDAQ	PRDO	Thu, May 9, 2019	18.94	19.87	18.86	19.31
5329	NASDAQ	PRDO	Wed, May 8, 2019	17.98	18.17	17.80	17.95
5328	NASDAQ	PRDO	Tue, May 7, 2019	18.22	18.36	17.81	18.01
5327	NASDAQ	PRDO	Mon, May 6, 2019	17.99	18.43	17.78	18.29
5326	NASDAQ	PRDO	Fri, May 3, 2019	18.32	18.43	18.11	18.26
5325	NASDAQ	PRDO	Thu, May 2, 2019	18.11	18.40	17.65	18.23
5324	NASDAQ	PRDO	Wed, May 1, 2019	18.28	18.52	18.15	18.16
5323	NASDAQ	PRDO	Tue, Apr 30, 2019	18.32	18.40	17.99	18.15
5322	NASDAQ	PRDO	Mon, Apr 29, 2019	18.39	18.55	18.09	18.28
5321	NASDAQ	PRDO	Fri, Apr 26, 2019	17.96	18.38	17.86	18.38
5320	NASDAQ	PRDO	Thu, Apr 25, 2019	17.73	17.96	17.58	17.91
5319	NASDAQ	PRDO	Wed, Apr 24, 2019	17.88	18.09	17.62	17.77
5318	NASDAQ	PRDO	Tue, Apr 23, 2019	17.73	18.06	17.60	17.95
5317	NASDAQ	PRDO	Mon, Apr 22, 2019	17.77	17.87	17.42	17.60
5316	NASDAQ	PRDO	Thu, Apr 18, 2019	18.15	18.29	17.75	17.76
5315	NASDAQ	PRDO	Wed, Apr 17, 2019	17.75	18.26	17.62	18.21
5314	NASDAQ	PRDO	Tue, Apr 16, 2019	17.71	17.80	17.57	17.70
5313	NASDAQ	PRDO	Mon, Apr 15, 2019	17.71	17.85	17.52	17.66
5312	NASDAQ	PRDO	Fri, Apr 12, 2019	17.78	18.03	17.57	17.69
5311	NASDAQ	PRDO	Thu, Apr 11, 2019	17.57	17.85	17.40	17.75
5310	NASDAQ	PRDO	Wed, Apr 10, 2019	17.24	17.70	17.23	17.56
5309	NASDAQ	PRDO	Tue, Apr 9, 2019	16.96	17.42	16.87	17.23
5308	NASDAQ	PRDO	Mon, Apr 8, 2019	17.12	17.21	16.93	16.97
5307	NASDAQ	PRDO	Fri, Apr 5, 2019	17.00	17.28	16.83	17.18
5306	NASDAQ	PRDO	Thu, Apr 4, 2019	16.67	17.03	16.62	17.00
5305	NASDAQ	PRDO	Wed, Apr 3, 2019	16.73	16.88	16.53	16.67
5304	NASDAQ	PRDO	Tue, Apr 2, 2019	16.58	16.73	16.26	16.48
5303	NASDAQ	PRDO	Mon, Apr 1, 2019	16.57	16.63	16.27	16.56
5302	NASDAQ	PRDO	Fri, Mar 29, 2019	16.56	16.69	16.45	16.52
5301	NASDAQ	PRDO	Thu, Mar 28, 2019	16.30	16.59	16.26	16.55
5300	NASDAQ	PRDO	Wed, Mar 27, 2019	16.31	16.41	16.12	16.30
5299	NASDAQ	PRDO	Tue, Mar 26, 2019	16.26	16.49	16.23	16.33
5298	NASDAQ	PRDO	Mon, Mar 25, 2019	15.96	16.30	15.89	16.25
5297	NASDAQ	PRDO	Fri, Mar 22, 2019	16.54	16.71	15.94	15.97
5296	NASDAQ	PRDO	Thu, Mar 21, 2019	16.48	16.86	16.48	16.61
5295	NASDAQ	PRDO	Wed, Mar 20, 2019	16.56	16.80	16.41	16.52
5294	NASDAQ	PRDO	Tue, Mar 19, 2019	16.56	16.63	15.95	16.59
5293	NASDAQ	PRDO	Mon, Mar 18, 2019	16.54	16.57	16.27	16.56
5292	NASDAQ	PRDO	Fri, Mar 15, 2019	16.38	16.64	16.29	16.54
5291	NASDAQ	PRDO	Thu, Mar 14, 2019	16.49	16.52	16.25	16.32
5290	NASDAQ	PRDO	Wed, Mar 13, 2019	16.30	16.65	16.22	16.49
5289	NASDAQ	PRDO	Tue, Mar 12, 2019	16.28	16.35	16.00	16.29
5288	NASDAQ	PRDO	Mon, Mar 11, 2019	16.18	16.34	15.81	16.30
5287	NASDAQ	PRDO	Fri, Mar 8, 2019	16.04	16.37	16.01	16.19
5286	NASDAQ	PRDO	Thu, Mar 7, 2019	16.23	16.36	15.96	16.08
5285	NASDAQ	PRDO	Wed, Mar 6, 2019	16.53	16.54	16.29	16.29
5284	NASDAQ	PRDO	Tue, Mar 5, 2019	16.71	16.72	16.49	16.49
5283	NASDAQ	PRDO	Mon, Mar 4, 2019	16.77	16.77	16.43	16.70
5282	NASDAQ	PRDO	Fri, Mar 1, 2019	16.64	16.88	16.52	16.77
5281	NASDAQ	PRDO	Thu, Feb 28, 2019	16.60	16.67	16.31	16.62
5280	NASDAQ	PRDO	Wed, Feb 27, 2019	16.52	16.74	16.51	16.60
5279	NASDAQ	PRDO	Tue, Feb 26, 2019	16.72	16.82	16.52	16.56
5278	NASDAQ	PRDO	Mon, Feb 25, 2019	16.62	17.00	16.62	16.71
5277	NASDAQ	PRDO	Fri, Feb 22, 2019	16.43	16.69	15.97	16.60
5276	NASDAQ	PRDO	Thu, Feb 21, 2019	15.20	17.72	15.05	16.37
5275	NASDAQ	PRDO	Wed, Feb 20, 2019	13.90	14.07	13.74	13.94
5274	NASDAQ	PRDO	Tue, Feb 19, 2019	13.95	14.03	13.38	13.87
5273	NASDAQ	PRDO	Fri, Feb 15, 2019	13.75	14.00	13.65	13.97
5272	NASDAQ	PRDO	Thu, Feb 14, 2019	13.60	13.78	13.50	13.70
5271	NASDAQ	PRDO	Wed, Feb 13, 2019	13.40	13.74	13.39	13.66
5270	NASDAQ	PRDO	Tue, Feb 12, 2019	13.50	13.61	13.29	13.39
5269	NASDAQ	PRDO	Mon, Feb 11, 2019	13.32	13.63	13.31	13.49
5268	NASDAQ	PRDO	Fri, Feb 8, 2019	13.27	13.35	13.23	13.31
5267	NASDAQ	PRDO	Thu, Feb 7, 2019	13.34	13.39	13.14	13.30
5266	NASDAQ	PRDO	Wed, Feb 6, 2019	13.62	13.62	13.28	13.39
5265	NASDAQ	PRDO	Tue, Feb 5, 2019	13.45	13.71	13.45	13.61
5264	NASDAQ	PRDO	Mon, Feb 4, 2019	12.86	13.50	12.86	13.48
5263	NASDAQ	PRDO	Fri, Feb 1, 2019	12.92	12.94	12.68	12.87
5262	NASDAQ	PRDO	Thu, Jan 31, 2019	12.88	13.11	12.75	12.91
5261	NASDAQ	PRDO	Wed, Jan 30, 2019	12.60	12.93	12.54	12.85
5260	NASDAQ	PRDO	Tue, Jan 29, 2019	13.05	13.05	12.78	12.79
5259	NASDAQ	PRDO	Mon, Jan 28, 2019	12.89	13.10	12.72	13.04
5258	NASDAQ	PRDO	Fri, Jan 25, 2019	13.00	13.01	12.79	12.94
5257	NASDAQ	PRDO	Thu, Jan 24, 2019	12.83	13.05	12.80	12.97
5256	NASDAQ	PRDO	Wed, Jan 23, 2019	12.70	12.91	12.69	12.80
5255	NASDAQ	PRDO	Tue, Jan 22, 2019	12.84	12.95	12.62	12.69
5254	NASDAQ	PRDO	Fri, Jan 18, 2019	12.60	12.87	12.50	12.85
5253	NASDAQ	PRDO	Thu, Jan 17, 2019	12.37	12.73	12.26	12.59
5252	NASDAQ	PRDO	Wed, Jan 16, 2019	12.33	12.56	12.31	12.37
5251	NASDAQ	PRDO	Tue, Jan 15, 2019	12.21	12.48	12.20	12.31
5250	NASDAQ	PRDO	Mon, Jan 14, 2019	12.06	12.29	12.01	12.20
5249	NASDAQ	PRDO	Fri, Jan 11, 2019	12.19	12.26	12.06	12.11
5248	NASDAQ	PRDO	Thu, Jan 10, 2019	12.00	12.28	11.94	12.26
5247	NASDAQ	PRDO	Wed, Jan 9, 2019	12.04	12.17	11.95	12.02
5246	NASDAQ	PRDO	Tue, Jan 8, 2019	11.91	12.11	11.82	12.03
5245	NASDAQ	PRDO	Mon, Jan 7, 2019	12.06	12.15	11.83	11.83
5244	NASDAQ	PRDO	Fri, Jan 4, 2019	11.83	12.22	11.70	12.06
5243	NASDAQ	PRDO	Thu, Jan 3, 2019	11.50	12.39	11.35	11.74
5242	NASDAQ	PRDO	Wed, Jan 2, 2019	11.28	11.58	11.19	11.49
5241	NASDAQ	PRDO	Mon, Dec 31, 2018	11.50	11.59	11.25	11.42
5240	NASDAQ	PRDO	Fri, Dec 28, 2018	11.20	11.50	11.03	11.49
5239	NASDAQ	PRDO	Thu, Dec 27, 2018	11.33	11.47	11.01	11.20
5238	NASDAQ	PRDO	Wed, Dec 26, 2018	11.42	11.55	11.18	11.43
5237	NASDAQ	PRDO	Mon, Dec 24, 2018	11.71	11.76	11.33	11.35
5236	NASDAQ	PRDO	Fri, Dec 21, 2018	12.14	12.14	11.71	11.76
5235	NASDAQ	PRDO	Thu, Dec 20, 2018	12.25	12.40	12.00	12.14
5234	NASDAQ	PRDO	Wed, Dec 19, 2018	12.81	13.03	12.12	12.26
5233	NASDAQ	PRDO	Tue, Dec 18, 2018	12.48	13.04	12.46	12.77
5232	NASDAQ	PRDO	Mon, Dec 17, 2018	12.58	12.98	12.30	12.36
5231	NASDAQ	PRDO	Fri, Dec 14, 2018	12.73	12.80	12.48	12.64
5230	NASDAQ	PRDO	Thu, Dec 13, 2018	13.26	13.33	12.81	12.86
5229	NASDAQ	PRDO	Wed, Dec 12, 2018	13.18	13.53	12.96	13.27
5228	NASDAQ	PRDO	Tue, Dec 11, 2018	13.15	13.15	12.92	13.08
5227	NASDAQ	PRDO	Mon, Dec 10, 2018	12.85	13.02	12.77	12.97
5226	NASDAQ	PRDO	Fri, Dec 7, 2018	13.35	13.58	12.75	12.85
5225	NASDAQ	PRDO	Thu, Dec 6, 2018	13.28	13.56	12.93	13.35
5224	NASDAQ	PRDO	Tue, Dec 4, 2018	14.12	14.12	13.38	13.46
5223	NASDAQ	PRDO	Mon, Dec 3, 2018	13.89	14.16	13.53	14.13
5222	NASDAQ	PRDO	Fri, Nov 30, 2018	13.31	13.56	13.31	13.49
5221	NASDAQ	PRDO	Thu, Nov 29, 2018	13.19	13.50	13.13	13.30
5220	NASDAQ	PRDO	Wed, Nov 28, 2018	13.12	13.33	13.05	13.22
5219	NASDAQ	PRDO	Tue, Nov 27, 2018	13.09	13.28	13.01	13.09
5218	NASDAQ	PRDO	Mon, Nov 26, 2018	13.03	13.16	13.01	13.13
5217	NASDAQ	PRDO	Fri, Nov 23, 2018	12.82	12.97	12.82	12.96
5216	NASDAQ	PRDO	Wed, Nov 21, 2018	12.78	12.95	12.75	12.85
5215	NASDAQ	PRDO	Tue, Nov 20, 2018	12.75	13.03	12.70	12.74
5214	NASDAQ	PRDO	Mon, Nov 19, 2018	12.96	13.09	12.70	12.86
5213	NASDAQ	PRDO	Fri, Nov 16, 2018	12.78	13.07	12.55	13.01
5212	NASDAQ	PRDO	Thu, Nov 15, 2018	12.98	13.01	12.70	12.87
5211	NASDAQ	PRDO	Wed, Nov 14, 2018	13.04	13.20	12.87	13.01
5210	NASDAQ	PRDO	Tue, Nov 13, 2018	12.86	13.16	12.83	12.93
5209	NASDAQ	PRDO	Mon, Nov 12, 2018	12.99	13.07	12.78	12.80
5208	NASDAQ	PRDO	Fri, Nov 9, 2018	12.89	13.12	12.60	12.97
5207	NASDAQ	PRDO	Thu, Nov 8, 2018	13.14	13.27	12.74	12.89
5206	NASDAQ	PRDO	Wed, Nov 7, 2018	13.05	13.46	13.04	13.15
5205	NASDAQ	PRDO	Tue, Nov 6, 2018	13.35	13.46	12.87	13.04
5204	NASDAQ	PRDO	Mon, Nov 5, 2018	13.46	13.54	13.28	13.36
5203	NASDAQ	PRDO	Fri, Nov 2, 2018	14.80	14.80	13.14	13.42
5202	NASDAQ	PRDO	Thu, Nov 1, 2018	14.39	14.66	14.32	14.63
5201	NASDAQ	PRDO	Wed, Oct 31, 2018	14.28	14.50	14.20	14.38
5200	NASDAQ	PRDO	Tue, Oct 30, 2018	13.92	14.12	13.77	14.12
5199	NASDAQ	PRDO	Mon, Oct 29, 2018	14.14	14.33	13.74	13.90
5198	NASDAQ	PRDO	Fri, Oct 26, 2018	13.81	14.22	13.70	14.02
5197	NASDAQ	PRDO	Thu, Oct 25, 2018	13.74	14.02	13.74	13.97
5196	NASDAQ	PRDO	Wed, Oct 24, 2018	13.82	14.06	13.57	13.63
5195	NASDAQ	PRDO	Tue, Oct 23, 2018	13.81	13.98	13.62	13.83
5194	NASDAQ	PRDO	Mon, Oct 22, 2018	13.85	14.09	13.85	13.97
5193	NASDAQ	PRDO	Fri, Oct 19, 2018	13.86	13.94	13.66	13.78
5192	NASDAQ	PRDO	Thu, Oct 18, 2018	14.01	14.11	13.81	13.88
5191	NASDAQ	PRDO	Wed, Oct 17, 2018	14.20	14.24	13.85	14.05
5190	NASDAQ	PRDO	Tue, Oct 16, 2018	13.79	14.29	13.67	14.24
5189	NASDAQ	PRDO	Mon, Oct 15, 2018	13.50	13.85	13.45	13.70
5188	NASDAQ	PRDO	Fri, Oct 12, 2018	13.76	13.80	13.41	13.52
5187	NASDAQ	PRDO	Thu, Oct 11, 2018	14.10	14.29	13.55	13.55
5186	NASDAQ	PRDO	Wed, Oct 10, 2018	14.45	14.57	14.10	14.16
5185	NASDAQ	PRDO	Tue, Oct 9, 2018	14.39	14.80	14.39	14.44
5184	NASDAQ	PRDO	Mon, Oct 8, 2018	14.47	14.52	14.30	14.42
5183	NASDAQ	PRDO	Fri, Oct 5, 2018	14.49	14.52	14.18	14.47
5182	NASDAQ	PRDO	Thu, Oct 4, 2018	14.49	14.49	14.30	14.44
5181	NASDAQ	PRDO	Wed, Oct 3, 2018	14.50	14.63	14.45	14.50
5180	NASDAQ	PRDO	Tue, Oct 2, 2018	14.59	14.67	14.41	14.47
5179	NASDAQ	PRDO	Mon, Oct 1, 2018	14.94	14.99	14.56	14.63
5178	NASDAQ	PRDO	Fri, Sep 28, 2018	14.51	15.01	14.51	14.93
5177	NASDAQ	PRDO	Thu, Sep 27, 2018	14.46	14.58	14.43	14.52
5176	NASDAQ	PRDO	Wed, Sep 26, 2018	14.59	14.71	14.42	14.46
5175	NASDAQ	PRDO	Tue, Sep 25, 2018	14.66	14.67	14.37	14.55
5174	NASDAQ	PRDO	Mon, Sep 24, 2018	14.57	14.70	14.52	14.67
5173	NASDAQ	PRDO	Fri, Sep 21, 2018	14.64	14.80	14.52	14.68
5172	NASDAQ	PRDO	Thu, Sep 20, 2018	14.45	14.64	14.37	14.64
5171	NASDAQ	PRDO	Wed, Sep 19, 2018	14.38	14.54	14.25	14.41
5170	NASDAQ	PRDO	Tue, Sep 18, 2018	14.35	14.54	14.33	14.36
5169	NASDAQ	PRDO	Mon, Sep 17, 2018	14.39	14.73	14.30	14.30
5168	NASDAQ	PRDO	Fri, Sep 14, 2018	14.27	14.46	14.17	14.42
5167	NASDAQ	PRDO	Thu, Sep 13, 2018	14.09	14.42	14.09	14.25
5166	NASDAQ	PRDO	Wed, Sep 12, 2018	14.20	14.21	13.80	14.06
5165	NASDAQ	PRDO	Tue, Sep 11, 2018	14.20	14.41	14.15	14.17
5164	NASDAQ	PRDO	Mon, Sep 10, 2018	15.10	15.10	14.22	14.26
5163	NASDAQ	PRDO	Fri, Sep 7, 2018	15.05	15.11	14.99	15.07
5162	NASDAQ	PRDO	Thu, Sep 6, 2018	15.33	15.40	14.96	15.06
5161	NASDAQ	PRDO	Wed, Sep 5, 2018	15.85	15.85	15.25	15.40
5160	NASDAQ	PRDO	Tue, Sep 4, 2018	15.88	16.04	15.72	15.86
5159	NASDAQ	PRDO	Fri, Aug 31, 2018	15.95	16.09	15.88	15.95
5158	NASDAQ	PRDO	Thu, Aug 30, 2018	16.00	16.04	15.78	15.94
5157	NASDAQ	PRDO	Wed, Aug 29, 2018	16.11	16.17	15.98	15.99
5156	NASDAQ	PRDO	Tue, Aug 28, 2018	16.05	16.20	16.01	16.12
5155	NASDAQ	PRDO	Mon, Aug 27, 2018	16.48	16.63	15.94	16.01
5154	NASDAQ	PRDO	Fri, Aug 24, 2018	16.50	16.67	16.30	16.50
5153	NASDAQ	PRDO	Thu, Aug 23, 2018	16.37	16.61	16.29	16.51
5152	NASDAQ	PRDO	Wed, Aug 22, 2018	16.57	16.96	16.26	16.40
5151	NASDAQ	PRDO	Tue, Aug 21, 2018	16.78	16.91	16.61	16.63
5150	NASDAQ	PRDO	Mon, Aug 20, 2018	16.64	16.85	16.56	16.72
5149	NASDAQ	PRDO	Fri, Aug 17, 2018	16.78	16.86	16.56	16.63
5148	NASDAQ	PRDO	Thu, Aug 16, 2018	16.82	17.03	16.71	16.87
5147	NASDAQ	PRDO	Wed, Aug 15, 2018	16.67	16.81	16.55	16.80
5146	NASDAQ	PRDO	Tue, Aug 14, 2018	16.73	16.88	16.62	16.71
5145	NASDAQ	PRDO	Mon, Aug 13, 2018	16.95	17.08	16.71	16.73
5144	NASDAQ	PRDO	Fri, Aug 10, 2018	16.84	17.23	16.59	16.95
5143	NASDAQ	PRDO	Thu, Aug 9, 2018	17.20	17.21	16.89	16.94
5142	NASDAQ	PRDO	Wed, Aug 8, 2018	17.05	17.27	17.02	17.24
5141	NASDAQ	PRDO	Tue, Aug 7, 2018	16.98	17.35	16.96	17.04
5140	NASDAQ	PRDO	Mon, Aug 6, 2018	16.80	17.09	16.61	16.86
5139	NASDAQ	PRDO	Fri, Aug 3, 2018	17.56	17.56	16.77	16.92
5138	NASDAQ	PRDO	Thu, Aug 2, 2018	17.95	17.95	15.50	17.60
5137	NASDAQ	PRDO	Wed, Aug 1, 2018	18.40	18.94	18.23	18.67
5136	NASDAQ	PRDO	Tue, Jul 31, 2018	18.27	18.55	18.19	18.40
5135	NASDAQ	PRDO	Mon, Jul 30, 2018	18.25	18.40	18.08	18.22
5134	NASDAQ	PRDO	Fri, Jul 27, 2018	18.54	18.59	18.13	18.23
5133	NASDAQ	PRDO	Thu, Jul 26, 2018	18.31	18.66	18.03	18.53
5132	NASDAQ	PRDO	Wed, Jul 25, 2018	18.32	18.67	18.32	18.61
5131	NASDAQ	PRDO	Tue, Jul 24, 2018	18.54	18.71	18.00	18.27
5130	NASDAQ	PRDO	Mon, Jul 23, 2018	18.58	18.60	18.34	18.45
5129	NASDAQ	PRDO	Fri, Jul 20, 2018	18.74	18.88	18.52	18.59
5128	NASDAQ	PRDO	Thu, Jul 19, 2018	18.76	19.07	18.55	18.78
5127	NASDAQ	PRDO	Wed, Jul 18, 2018	18.36	18.75	18.21	18.73
5126	NASDAQ	PRDO	Tue, Jul 17, 2018	17.99	18.42	17.89	18.37
5125	NASDAQ	PRDO	Mon, Jul 16, 2018	17.92	18.01	17.78	17.98
5124	NASDAQ	PRDO	Fri, Jul 13, 2018	18.07	18.12	17.78	17.91
5123	NASDAQ	PRDO	Thu, Jul 12, 2018	18.20	18.36	17.69	18.12
5122	NASDAQ	PRDO	Wed, Jul 11, 2018	17.32	18.50	17.31	18.08
5121	NASDAQ	PRDO	Tue, Jul 10, 2018	17.01	17.52	17.01	17.52
5120	NASDAQ	PRDO	Mon, Jul 9, 2018	17.21	17.21	16.72	17.05
5119	NASDAQ	PRDO	Fri, Jul 6, 2018	16.50	17.01	16.25	16.82
5118	NASDAQ	PRDO	Thu, Jul 5, 2018	16.49	16.64	16.28	16.48
5117	NASDAQ	PRDO	Tue, Jul 3, 2018	16.46	16.46	16.05	16.41
5116	NASDAQ	PRDO	Mon, Jul 2, 2018	16.10	16.43	15.99	16.41
5115	NASDAQ	PRDO	Fri, Jun 29, 2018	16.23	16.41	16.15	16.17
5114	NASDAQ	PRDO	Thu, Jun 28, 2018	16.11	16.25	16.03	16.24
5113	NASDAQ	PRDO	Wed, Jun 27, 2018	16.39	16.49	16.09	16.17
5112	NASDAQ	PRDO	Tue, Jun 26, 2018	16.09	16.49	16.00	16.39
5111	NASDAQ	PRDO	Mon, Jun 25, 2018	16.19	16.35	15.98	16.15
5110	NASDAQ	PRDO	Fri, Jun 22, 2018	16.35	16.42	16.05	16.27
5109	NASDAQ	PRDO	Thu, Jun 21, 2018	16.60	16.60	16.28	16.30
5108	NASDAQ	PRDO	Wed, Jun 20, 2018	16.57	16.67	16.48	16.59
5107	NASDAQ	PRDO	Tue, Jun 19, 2018	16.37	16.56	16.21	16.54
5106	NASDAQ	PRDO	Mon, Jun 18, 2018	16.34	16.39	16.10	16.37
5105	NASDAQ	PRDO	Fri, Jun 15, 2018	16.04	16.29	15.85	16.24
5104	NASDAQ	PRDO	Thu, Jun 14, 2018	16.04	16.58	15.90	16.11
5103	NASDAQ	PRDO	Wed, Jun 13, 2018	16.26	16.33	15.66	16.02
5102	NASDAQ	PRDO	Tue, Jun 12, 2018	16.29	16.47	16.19	16.28
5101	NASDAQ	PRDO	Mon, Jun 11, 2018	16.25	16.35	16.16	16.28
5100	NASDAQ	PRDO	Fri, Jun 8, 2018	16.17	16.35	16.11	16.23
5099	NASDAQ	PRDO	Thu, Jun 7, 2018	16.25	16.31	16.03	16.17
5098	NASDAQ	PRDO	Wed, Jun 6, 2018	16.40	16.49	16.16	16.21
5097	NASDAQ	PRDO	Tue, Jun 5, 2018	16.00	16.41	15.92	16.35
5096	NASDAQ	PRDO	Mon, Jun 4, 2018	15.72	16.09	15.50	15.99
5095	NASDAQ	PRDO	Fri, Jun 1, 2018	15.60	15.91	15.45	15.73
5094	NASDAQ	PRDO	Thu, May 31, 2018	15.36	15.57	15.35	15.39
5093	NASDAQ	PRDO	Wed, May 30, 2018	15.38	15.72	15.26	15.33
5092	NASDAQ	PRDO	Tue, May 29, 2018	14.90	15.39	14.88	15.19
5091	NASDAQ	PRDO	Fri, May 25, 2018	14.78	14.96	14.72	14.94
5090	NASDAQ	PRDO	Thu, May 24, 2018	14.45	14.84	14.33	14.77
5089	NASDAQ	PRDO	Wed, May 23, 2018	14.40	14.50	14.34	14.44
5088	NASDAQ	PRDO	Tue, May 22, 2018	14.44	14.65	14.37	14.40
5087	NASDAQ	PRDO	Mon, May 21, 2018	14.45	14.50	14.35	14.44
5086	NASDAQ	PRDO	Fri, May 18, 2018	14.48	14.65	14.34	14.43
5085	NASDAQ	PRDO	Thu, May 17, 2018	14.18	14.49	14.03	14.42
5084	NASDAQ	PRDO	Wed, May 16, 2018	14.12	14.41	14.12	14.23
5083	NASDAQ	PRDO	Tue, May 15, 2018	13.95	14.15	13.95	14.06
5082	NASDAQ	PRDO	Mon, May 14, 2018	14.40	14.40	13.99	13.99
5081	NASDAQ	PRDO	Fri, May 11, 2018	14.35	14.48	14.30	14.34
5080	NASDAQ	PRDO	Thu, May 10, 2018	14.30	14.37	14.18	14.37
5079	NASDAQ	PRDO	Wed, May 9, 2018	14.33	14.50	14.18	14.32
5078	NASDAQ	PRDO	Tue, May 8, 2018	14.34	14.40	14.17	14.31
5077	NASDAQ	PRDO	Mon, May 7, 2018	14.34	14.41	14.10	14.31
5076	NASDAQ	PRDO	Fri, May 4, 2018	14.51	14.55	13.82	14.30
5075	NASDAQ	PRDO	Thu, May 3, 2018	13.30	14.68	12.88	14.51
5074	NASDAQ	PRDO	Wed, May 2, 2018	12.83	13.38	12.83	13.27
5073	NASDAQ	PRDO	Tue, May 1, 2018	12.96	12.97	12.47	12.78
5072	NASDAQ	PRDO	Mon, Apr 30, 2018	13.17	13.20	12.96	12.97
5071	NASDAQ	PRDO	Fri, Apr 27, 2018	13.25	13.30	13.07	13.18
5070	NASDAQ	PRDO	Thu, Apr 26, 2018	13.17	13.55	13.07	13.24
5069	NASDAQ	PRDO	Wed, Apr 25, 2018	13.15	13.31	12.91	13.18
5068	NASDAQ	PRDO	Tue, Apr 24, 2018	13.26	13.33	13.10	13.15
5067	NASDAQ	PRDO	Mon, Apr 23, 2018	13.50	13.60	13.21	13.26
5066	NASDAQ	PRDO	Fri, Apr 20, 2018	13.42	13.74	13.42	13.45
5065	NASDAQ	PRDO	Thu, Apr 19, 2018	13.70	13.75	13.46	13.48
5064	NASDAQ	PRDO	Wed, Apr 18, 2018	13.20	13.86	13.17	13.74
5063	NASDAQ	PRDO	Tue, Apr 17, 2018	13.10	13.25	12.99	13.18
5062	NASDAQ	PRDO	Mon, Apr 16, 2018	12.99	13.10	12.94	13.04
5061	NASDAQ	PRDO	Fri, Apr 13, 2018	12.97	13.06	12.85	12.93
5060	NASDAQ	PRDO	Thu, Apr 12, 2018	13.06	13.08	12.88	12.93
5059	NASDAQ	PRDO	Wed, Apr 11, 2018	13.00	13.08	12.91	12.99
5058	NASDAQ	PRDO	Tue, Apr 10, 2018	13.10	13.18	12.94	13.04
5057	NASDAQ	PRDO	Mon, Apr 9, 2018	13.05	13.16	12.98	13.04
5056	NASDAQ	PRDO	Fri, Apr 6, 2018	13.08	13.30	12.95	13.00
5055	NASDAQ	PRDO	Thu, Apr 5, 2018	13.15	13.30	13.07	13.15
5054	NASDAQ	PRDO	Wed, Apr 4, 2018	12.84	13.13	12.82	13.09
5053	NASDAQ	PRDO	Tue, Apr 3, 2018	12.95	13.07	12.69	12.99
5052	NASDAQ	PRDO	Mon, Apr 2, 2018	13.13	13.31	12.75	12.89
5051	NASDAQ	PRDO	Thu, Mar 29, 2018	13.11	13.24	11.78	13.14
5050	NASDAQ	PRDO	Wed, Mar 28, 2018	13.22	13.23	12.90	13.03
5049	NASDAQ	PRDO	Tue, Mar 27, 2018	13.52	13.52	13.10	13.18
5048	NASDAQ	PRDO	Mon, Mar 26, 2018	13.36	13.58	12.33	13.49
5047	NASDAQ	PRDO	Fri, Mar 23, 2018	13.64	13.72	13.25	13.25
5046	NASDAQ	PRDO	Thu, Mar 22, 2018	13.61	13.91	13.59	13.59
5045	NASDAQ	PRDO	Wed, Mar 21, 2018	13.82	13.87	13.58	13.75
5044	NASDAQ	PRDO	Tue, Mar 20, 2018	13.94	13.99	13.49	13.83
5043	NASDAQ	PRDO	Mon, Mar 19, 2018	13.72	13.97	13.50	13.94
5042	NASDAQ	PRDO	Fri, Mar 16, 2018	13.70	13.88	13.22	13.76
5041	NASDAQ	PRDO	Thu, Mar 15, 2018	13.89	13.92	13.67	13.75
5040	NASDAQ	PRDO	Wed, Mar 14, 2018	13.85	14.01	13.64	13.85
5039	NASDAQ	PRDO	Tue, Mar 13, 2018	14.12	14.14	13.72	13.77
5038	NASDAQ	PRDO	Mon, Mar 12, 2018	14.10	14.26	14.02	14.10
5037	NASDAQ	PRDO	Fri, Mar 9, 2018	14.00	14.33	13.92	14.08
5036	NASDAQ	PRDO	Thu, Mar 8, 2018	14.13	14.14	13.68	13.96
5035	NASDAQ	PRDO	Wed, Mar 7, 2018	13.70	14.22	13.45	14.14
5034	NASDAQ	PRDO	Tue, Mar 6, 2018	13.66	13.89	13.45	13.80
5033	NASDAQ	PRDO	Mon, Mar 5, 2018	13.32	13.73	13.31	13.58
5032	NASDAQ	PRDO	Fri, Mar 2, 2018	12.77	13.47	12.61	13.37
5031	NASDAQ	PRDO	Thu, Mar 1, 2018	13.13	13.28	12.79	12.82
5030	NASDAQ	PRDO	Wed, Feb 28, 2018	13.35	13.41	12.66	13.23
5029	NASDAQ	PRDO	Tue, Feb 27, 2018	13.64	13.68	13.15	13.26
5028	NASDAQ	PRDO	Mon, Feb 26, 2018	13.45	13.82	13.37	13.69
5027	NASDAQ	PRDO	Fri, Feb 23, 2018	13.65	13.65	13.04	13.28
5026	NASDAQ	PRDO	Thu, Feb 22, 2018	12.44	13.78	11.55	13.71
5025	NASDAQ	PRDO	Wed, Feb 21, 2018	11.73	12.07	11.66	11.91
5024	NASDAQ	PRDO	Tue, Feb 20, 2018	11.80	11.95	11.64	11.74
5023	NASDAQ	PRDO	Fri, Feb 16, 2018	12.00	12.19	11.86	11.90
5022	NASDAQ	PRDO	Thu, Feb 15, 2018	11.95	12.02	11.73	11.93
5021	NASDAQ	PRDO	Wed, Feb 14, 2018	11.58	12.02	11.58	11.92
5020	NASDAQ	PRDO	Tue, Feb 13, 2018	11.63	11.80	11.62	11.73
5019	NASDAQ	PRDO	Mon, Feb 12, 2018	11.74	11.87	11.60	11.73
5018	NASDAQ	PRDO	Fri, Feb 9, 2018	11.71	11.81	11.38	11.72
5017	NASDAQ	PRDO	Thu, Feb 8, 2018	12.18	12.18	11.53	11.53
5016	NASDAQ	PRDO	Wed, Feb 7, 2018	11.93	12.72	11.84	12.15
5015	NASDAQ	PRDO	Tue, Feb 6, 2018	11.80	12.05	11.54	11.97
5014	NASDAQ	PRDO	Mon, Feb 5, 2018	12.21	12.55	11.86	11.98
5013	NASDAQ	PRDO	Fri, Feb 2, 2018	12.29	12.37	12.15	12.30
5012	NASDAQ	PRDO	Thu, Feb 1, 2018	12.36	12.49	12.24	12.40
5011	NASDAQ	PRDO	Wed, Jan 31, 2018	12.36	12.47	12.25	12.40
5010	NASDAQ	PRDO	Tue, Jan 30, 2018	12.30	12.34	12.06	12.28
5009	NASDAQ	PRDO	Mon, Jan 29, 2018	12.55	12.55	12.35	12.39
5008	NASDAQ	PRDO	Fri, Jan 26, 2018	12.64	12.65	12.42	12.61
5007	NASDAQ	PRDO	Thu, Jan 25, 2018	12.57	12.66	12.41	12.63
5006	NASDAQ	PRDO	Wed, Jan 24, 2018	12.57	12.76	12.48	12.50
5005	NASDAQ	PRDO	Tue, Jan 23, 2018	12.29	12.55	12.24	12.48
5004	NASDAQ	PRDO	Mon, Jan 22, 2018	12.32	12.40	12.21	12.35
5003	NASDAQ	PRDO	Fri, Jan 19, 2018	12.20	12.41	12.09	12.39
5002	NASDAQ	PRDO	Thu, Jan 18, 2018	12.37	12.47	12.22	12.22
5001	NASDAQ	PRDO	Wed, Jan 17, 2018	12.40	12.48	12.25	12.38
5000	NASDAQ	PRDO	Tue, Jan 16, 2018	12.66	12.69	12.29	12.33
4999	NASDAQ	PRDO	Fri, Jan 12, 2018	12.54	12.69	12.41	12.63
4998	NASDAQ	PRDO	Thu, Jan 11, 2018	12.45	12.62	12.36	12.51
4997	NASDAQ	PRDO	Wed, Jan 10, 2018	12.60	12.65	12.35	12.42
4996	NASDAQ	PRDO	Tue, Jan 9, 2018	12.27	12.54	12.06	12.52
4995	NASDAQ	PRDO	Mon, Jan 8, 2018	12.20	12.32	12.02	12.26
4994	NASDAQ	PRDO	Fri, Jan 5, 2018	12.09	12.24	11.95	12.20
4993	NASDAQ	PRDO	Thu, Jan 4, 2018	12.37	12.41	12.07	12.07
4992	NASDAQ	PRDO	Wed, Jan 3, 2018	12.52	12.52	12.05	12.30
4991	NASDAQ	PRDO	Tue, Jan 2, 2018	12.08	12.61	12.07	12.51
4990	NASDAQ	PRDO	Fri, Dec 29, 2017	12.14	12.17	11.96	12.08
4989	NASDAQ	PRDO	Thu, Dec 28, 2017	12.39	12.39	12.09	12.13
4988	NASDAQ	PRDO	Wed, Dec 27, 2017	12.24	12.50	12.17	12.40
4987	NASDAQ	PRDO	Tue, Dec 26, 2017	12.25	12.35	12.14	12.20
4986	NASDAQ	PRDO	Fri, Dec 22, 2017	12.46	12.46	12.19	12.23
4985	NASDAQ	PRDO	Thu, Dec 21, 2017	12.43	12.60	12.32	12.44
4984	NASDAQ	PRDO	Wed, Dec 20, 2017	12.60	12.61	12.41	12.42
4983	NASDAQ	PRDO	Tue, Dec 19, 2017	12.62	12.75	12.48	12.56
4982	NASDAQ	PRDO	Mon, Dec 18, 2017	12.60	12.90	12.54	12.60
4981	NASDAQ	PRDO	Fri, Dec 15, 2017	12.39	12.73	12.38	12.58
4980	NASDAQ	PRDO	Thu, Dec 14, 2017	12.31	12.52	12.29	12.41
4979	NASDAQ	PRDO	Wed, Dec 13, 2017	12.50	12.64	12.35	12.35
4978	NASDAQ	PRDO	Tue, Dec 12, 2017	12.71	12.74	12.49	12.54
4977	NASDAQ	PRDO	Mon, Dec 11, 2017	12.74	12.80	12.56	12.64
4976	NASDAQ	PRDO	Fri, Dec 8, 2017	12.95	12.99	12.73	12.75
4975	NASDAQ	PRDO	Thu, Dec 7, 2017	13.19	13.21	12.83	12.89
4974	NASDAQ	PRDO	Wed, Dec 6, 2017	13.00	13.29	12.92	13.22
4973	NASDAQ	PRDO	Tue, Dec 5, 2017	12.82	13.07	12.70	13.04
4972	NASDAQ	PRDO	Mon, Dec 4, 2017	13.15	13.15	12.82	12.83
4971	NASDAQ	PRDO	Fri, Dec 1, 2017	13.25	13.25	12.65	13.11
4970	NASDAQ	PRDO	Thu, Nov 30, 2017	13.65	13.92	13.14	13.27
4969	NASDAQ	PRDO	Wed, Nov 29, 2017	13.41	13.61	13.34	13.52
4968	NASDAQ	PRDO	Tue, Nov 28, 2017	13.16	13.36	13.05	13.30
4967	NASDAQ	PRDO	Mon, Nov 27, 2017	13.12	13.15	13.00	13.13
4966	NASDAQ	PRDO	Fri, Nov 24, 2017	13.10	13.15	13.00	13.12
4965	NASDAQ	PRDO	Wed, Nov 22, 2017	13.07	13.14	13.00	13.13
4964	NASDAQ	PRDO	Tue, Nov 21, 2017	12.73	13.11	12.64	13.08
4963	NASDAQ	PRDO	Mon, Nov 20, 2017	12.70	12.83	12.47	12.63
4962	NASDAQ	PRDO	Fri, Nov 17, 2017	12.86	12.95	12.57	12.64
4961	NASDAQ	PRDO	Thu, Nov 16, 2017	12.89	12.96	12.55	12.91
4960	NASDAQ	PRDO	Wed, Nov 15, 2017	13.05	13.23	12.82	12.84
4959	NASDAQ	PRDO	Tue, Nov 14, 2017	13.00	13.22	12.93	13.15
4958	NASDAQ	PRDO	Mon, Nov 13, 2017	12.37	13.10	12.29	13.09
4957	NASDAQ	PRDO	Fri, Nov 10, 2017	11.85	12.46	11.41	12.35
4956	NASDAQ	PRDO	Thu, Nov 9, 2017	12.03	12.16	11.78	11.93
4955	NASDAQ	PRDO	Wed, Nov 8, 2017	12.27	12.39	12.06	12.17
4954	NASDAQ	PRDO	Tue, Nov 7, 2017	12.06	12.37	11.98	12.35
4953	NASDAQ	PRDO	Mon, Nov 6, 2017	11.89	12.11	11.88	12.06
4952	NASDAQ	PRDO	Fri, Nov 3, 2017	11.00	12.39	10.60	11.95
4951	NASDAQ	PRDO	Thu, Nov 2, 2017	10.51	10.78	10.50	10.73
4950	NASDAQ	PRDO	Wed, Nov 1, 2017	10.76	10.86	10.40	10.50
4949	NASDAQ	PRDO	Tue, Oct 31, 2017	10.85	10.96	10.67	10.68
4948	NASDAQ	PRDO	Mon, Oct 30, 2017	10.77	10.88	10.66	10.81
4947	NASDAQ	PRDO	Fri, Oct 27, 2017	10.63	10.84	10.49	10.65
4946	NASDAQ	PRDO	Thu, Oct 26, 2017	10.68	10.75	10.58	10.61
4945	NASDAQ	PRDO	Wed, Oct 25, 2017	10.66	10.68	10.43	10.61
4944	NASDAQ	PRDO	Tue, Oct 24, 2017	10.73	10.75	10.66	10.67
4943	NASDAQ	PRDO	Mon, Oct 23, 2017	10.79	10.90	10.61	10.68
4942	NASDAQ	PRDO	Fri, Oct 20, 2017	10.90	10.91	10.71	10.75
4941	NASDAQ	PRDO	Thu, Oct 19, 2017	10.74	10.86	10.65	10.78
4940	NASDAQ	PRDO	Wed, Oct 18, 2017	10.79	10.89	10.67	10.85
4939	NASDAQ	PRDO	Tue, Oct 17, 2017	10.90	10.90	10.65	10.70
4938	NASDAQ	PRDO	Mon, Oct 16, 2017	10.74	10.94	10.65	10.90
4937	NASDAQ	PRDO	Fri, Oct 13, 2017	10.45	10.61	10.31	10.54
4936	NASDAQ	PRDO	Thu, Oct 12, 2017	10.39	10.49	10.24	10.41
4935	NASDAQ	PRDO	Wed, Oct 11, 2017	10.38	10.46	10.30	10.40
4934	NASDAQ	PRDO	Tue, Oct 10, 2017	10.31	10.42	10.13	10.39
4933	NASDAQ	PRDO	Mon, Oct 9, 2017	10.55	10.60	10.29	10.29
4932	NASDAQ	PRDO	Fri, Oct 6, 2017	10.64	10.75	10.40	10.52
4931	NASDAQ	PRDO	Thu, Oct 5, 2017	10.70	10.77	10.54	10.70
4930	NASDAQ	PRDO	Wed, Oct 4, 2017	10.71	10.74	10.54	10.70
4929	NASDAQ	PRDO	Tue, Oct 3, 2017	10.81	10.81	10.60	10.70
4928	NASDAQ	PRDO	Mon, Oct 2, 2017	10.40	10.78	10.39	10.75
4927	NASDAQ	PRDO	Fri, Sep 29, 2017	10.48	10.55	10.33	10.39
4926	NASDAQ	PRDO	Thu, Sep 28, 2017	10.39	10.53	10.18	10.53
4925	NASDAQ	PRDO	Wed, Sep 27, 2017	10.20	10.51	10.14	10.46
4924	NASDAQ	PRDO	Tue, Sep 26, 2017	9.98	10.22	9.78	10.15
4923	NASDAQ	PRDO	Mon, Sep 25, 2017	9.86	9.99	9.75	9.96
4922	NASDAQ	PRDO	Fri, Sep 22, 2017	9.90	10.01	9.66	9.91
4921	NASDAQ	PRDO	Thu, Sep 21, 2017	9.85	9.92	9.00	9.89
4920	NASDAQ	PRDO	Wed, Sep 20, 2017	9.86	9.92	9.74	9.92
4919	NASDAQ	PRDO	Tue, Sep 19, 2017	10.04	10.05	9.80	9.87
4918	NASDAQ	PRDO	Mon, Sep 18, 2017	9.95	10.13	9.88	10.08
4917	NASDAQ	PRDO	Fri, Sep 15, 2017	9.85	9.99	9.79	9.88
4916	NASDAQ	PRDO	Thu, Sep 14, 2017	9.72	9.82	9.67	9.82
4915	NASDAQ	PRDO	Wed, Sep 13, 2017	9.65	9.86	9.62	9.72
4914	NASDAQ	PRDO	Tue, Sep 12, 2017	9.54	9.72	9.41	9.68
4913	NASDAQ	PRDO	Mon, Sep 11, 2017	9.57	9.63	9.48	9.54
4912	NASDAQ	PRDO	Fri, Sep 8, 2017	9.54	9.76	9.03	9.51
4911	NASDAQ	PRDO	Thu, Sep 7, 2017	9.49	9.62	9.47	9.57
4910	NASDAQ	PRDO	Wed, Sep 6, 2017	9.66	9.73	9.49	9.49
4909	NASDAQ	PRDO	Tue, Sep 5, 2017	9.59	9.69	9.48	9.61
4908	NASDAQ	PRDO	Fri, Sep 1, 2017	9.60	9.64	9.41	9.62
4907	NASDAQ	PRDO	Thu, Aug 31, 2017	9.35	9.80	9.35	9.61
4906	NASDAQ	PRDO	Wed, Aug 30, 2017	9.37	9.39	9.25	9.28
4905	NASDAQ	PRDO	Tue, Aug 29, 2017	9.22	9.39	9.15	9.36
4904	NASDAQ	PRDO	Mon, Aug 28, 2017	9.56	9.56	9.20	9.31
4903	NASDAQ	PRDO	Fri, Aug 25, 2017	9.37	9.60	9.33	9.57
4902	NASDAQ	PRDO	Thu, Aug 24, 2017	9.15	9.33	9.13	9.31
4901	NASDAQ	PRDO	Wed, Aug 23, 2017	9.08	9.21	8.87	9.09
4900	NASDAQ	PRDO	Tue, Aug 22, 2017	8.70	9.11	8.65	9.11
4899	NASDAQ	PRDO	Mon, Aug 21, 2017	8.55	8.74	8.53	8.70
4898	NASDAQ	PRDO	Fri, Aug 18, 2017	8.60	8.67	8.53	8.56
4897	NASDAQ	PRDO	Thu, Aug 17, 2017	8.62	8.94	8.60	8.64
4896	NASDAQ	PRDO	Wed, Aug 16, 2017	8.78	9.01	8.57	8.71
4895	NASDAQ	PRDO	Tue, Aug 15, 2017	8.83	8.83	8.50	8.59
4894	NASDAQ	PRDO	Mon, Aug 14, 2017	8.66	8.99	8.66	8.83
4893	NASDAQ	PRDO	Fri, Aug 11, 2017	8.54	8.65	8.48	8.61
4892	NASDAQ	PRDO	Thu, Aug 10, 2017	8.75	8.86	8.48	8.49
4891	NASDAQ	PRDO	Wed, Aug 9, 2017	8.38	8.91	8.37	8.90
4890	NASDAQ	PRDO	Tue, Aug 8, 2017	8.30	8.48	8.26	8.30
4889	NASDAQ	PRDO	Mon, Aug 7, 2017	8.30	8.50	8.29	8.31
4888	NASDAQ	PRDO	Fri, Aug 4, 2017	8.31	8.38	8.28	8.30
4887	NASDAQ	PRDO	Thu, Aug 3, 2017	8.25	8.32	8.20	8.30
4886	NASDAQ	PRDO	Wed, Aug 2, 2017	8.31	8.52	8.10	8.26
4885	NASDAQ	PRDO	Tue, Aug 1, 2017	8.50	8.50	8.28	8.32
4884	NASDAQ	PRDO	Mon, Jul 31, 2017	8.65	8.79	8.40	8.41
4883	NASDAQ	PRDO	Fri, Jul 28, 2017	8.60	8.70	8.48	8.67
4882	NASDAQ	PRDO	Thu, Jul 27, 2017	8.90	8.99	8.64	8.64
4881	NASDAQ	PRDO	Wed, Jul 26, 2017	9.21	9.25	8.85	8.88
4880	NASDAQ	PRDO	Tue, Jul 25, 2017	9.30	9.40	9.17	9.20
4879	NASDAQ	PRDO	Mon, Jul 24, 2017	9.41	9.51	9.15	9.26
4878	NASDAQ	PRDO	Fri, Jul 21, 2017	9.47	9.48	9.32	9.43
4877	NASDAQ	PRDO	Thu, Jul 20, 2017	9.32	9.47	9.26	9.33
4876	NASDAQ	PRDO	Wed, Jul 19, 2017	9.38	9.41	9.24	9.32
4875	NASDAQ	PRDO	Tue, Jul 18, 2017	9.31	9.41	9.25	9.36
4874	NASDAQ	PRDO	Mon, Jul 17, 2017	9.24	9.36	9.20	9.34
4873	NASDAQ	PRDO	Fri, Jul 14, 2017	9.25	9.35	9.23	9.27
4872	NASDAQ	PRDO	Thu, Jul 13, 2017	9.39	9.44	9.26	9.32
4871	NASDAQ	PRDO	Wed, Jul 12, 2017	9.35	9.56	9.29	9.40
4870	NASDAQ	PRDO	Tue, Jul 11, 2017	9.25	9.33	9.18	9.28
4869	NASDAQ	PRDO	Mon, Jul 10, 2017	9.40	9.50	9.25	9.25
4868	NASDAQ	PRDO	Fri, Jul 7, 2017	9.15	9.44	9.08	9.42
4867	NASDAQ	PRDO	Thu, Jul 6, 2017	9.38	9.45	9.08	9.10
4866	NASDAQ	PRDO	Wed, Jul 5, 2017	9.49	9.55	9.43	9.48
4865	NASDAQ	PRDO	Mon, Jul 3, 2017	9.60	9.67	9.48	9.49
4864	NASDAQ	PRDO	Fri, Jun 30, 2017	9.63	9.69	9.42	9.60
4863	NASDAQ	PRDO	Thu, Jun 29, 2017	9.65	9.65	9.39	9.59
4862	NASDAQ	PRDO	Wed, Jun 28, 2017	9.51	9.70	9.44	9.64
4861	NASDAQ	PRDO	Tue, Jun 27, 2017	9.50	9.61	9.42	9.48
4860	NASDAQ	PRDO	Mon, Jun 26, 2017	9.44	9.64	9.36	9.54
4859	NASDAQ	PRDO	Fri, Jun 23, 2017	9.56	9.64	9.36	9.39
4858	NASDAQ	PRDO	Thu, Jun 22, 2017	9.68	9.73	9.54	9.58
4857	NASDAQ	PRDO	Wed, Jun 21, 2017	9.70	9.80	9.59	9.61
4856	NASDAQ	PRDO	Tue, Jun 20, 2017	9.75	9.81	9.66	9.68
4855	NASDAQ	PRDO	Mon, Jun 19, 2017	9.83	10.07	9.78	9.81
4854	NASDAQ	PRDO	Fri, Jun 16, 2017	9.47	9.86	9.47	9.81
4853	NASDAQ	PRDO	Thu, Jun 15, 2017	9.65	9.87	9.65	9.81
4852	NASDAQ	PRDO	Wed, Jun 14, 2017	9.93	10.44	9.73	9.80
4851	NASDAQ	PRDO	Tue, Jun 13, 2017	9.83	9.97	9.75	9.93
4850	NASDAQ	PRDO	Mon, Jun 12, 2017	9.70	10.04	9.70	9.82
4849	NASDAQ	PRDO	Fri, Jun 9, 2017	9.65	9.94	9.65	9.73
4848	NASDAQ	PRDO	Thu, Jun 8, 2017	9.63	9.74	9.57	9.60
4847	NASDAQ	PRDO	Wed, Jun 7, 2017	9.66	9.69	9.56	9.64
4846	NASDAQ	PRDO	Tue, Jun 6, 2017	9.67	9.82	9.50	9.64
4845	NASDAQ	PRDO	Mon, Jun 5, 2017	10.04	10.09	9.69	9.70
4844	NASDAQ	PRDO	Fri, Jun 2, 2017	9.89	10.23	9.86	10.08
4843	NASDAQ	PRDO	Thu, Jun 1, 2017	9.46	9.94	9.46	9.89
4842	NASDAQ	PRDO	Wed, May 31, 2017	9.56	9.63	9.31	9.44
4841	NASDAQ	PRDO	Tue, May 30, 2017	9.57	9.61	9.49	9.50
4840	NASDAQ	PRDO	Fri, May 26, 2017	9.64	9.67	9.52	9.61
4839	NASDAQ	PRDO	Thu, May 25, 2017	9.80	9.88	9.61	9.66
4838	NASDAQ	PRDO	Wed, May 24, 2017	9.67	9.83	9.67	9.79
4837	NASDAQ	PRDO	Tue, May 23, 2017	9.57	9.71	9.39	9.69
4836	NASDAQ	PRDO	Mon, May 22, 2017	9.52	9.57	9.46	9.53
4835	NASDAQ	PRDO	Fri, May 19, 2017	9.50	9.69	9.49	9.49
4834	NASDAQ	PRDO	Thu, May 18, 2017	9.61	9.61	9.48	9.51
4833	NASDAQ	PRDO	Wed, May 17, 2017	9.97	10.06	9.59	9.61
4832	NASDAQ	PRDO	Tue, May 16, 2017	10.35	10.35	10.04	10.10
4831	NASDAQ	PRDO	Mon, May 15, 2017	10.29	10.40	10.19	10.30
4830	NASDAQ	PRDO	Fri, May 12, 2017	10.55	10.57	10.28	10.29
4829	NASDAQ	PRDO	Thu, May 11, 2017	10.64	10.64	10.37	10.57
4828	NASDAQ	PRDO	Wed, May 10, 2017	10.58	10.74	10.47	10.68
4827	NASDAQ	PRDO	Tue, May 9, 2017	10.43	10.82	10.31	10.58
4826	NASDAQ	PRDO	Mon, May 8, 2017	10.77	10.80	10.33	10.38
4825	NASDAQ	PRDO	Fri, May 5, 2017	11.12	11.12	10.49	10.77
4824	NASDAQ	PRDO	Thu, May 4, 2017	11.15	12.59	11.04	11.11
4823	NASDAQ	PRDO	Wed, May 3, 2017	10.11	10.95	10.11	10.79
4822	NASDAQ	PRDO	Tue, May 2, 2017	10.24	10.27	10.10	10.17
4821	NASDAQ	PRDO	Mon, May 1, 2017	10.20	10.22	10.08	10.20
4820	NASDAQ	PRDO	Fri, Apr 28, 2017	10.26	10.26	10.12	10.15
4819	NASDAQ	PRDO	Thu, Apr 27, 2017	10.31	10.35	10.19	10.24
4818	NASDAQ	PRDO	Wed, Apr 26, 2017	9.98	10.54	9.98	10.32
4817	NASDAQ	PRDO	Tue, Apr 25, 2017	9.95	10.10	9.92	9.99
4816	NASDAQ	PRDO	Mon, Apr 24, 2017	9.82	9.98	9.78	9.84
4815	NASDAQ	PRDO	Fri, Apr 21, 2017	9.63	9.76	9.53	9.68
4814	NASDAQ	PRDO	Thu, Apr 20, 2017	9.58	9.76	9.51	9.64
4813	NASDAQ	PRDO	Wed, Apr 19, 2017	9.27	9.60	9.23	9.54
4812	NASDAQ	PRDO	Tue, Apr 18, 2017	9.11	9.26	9.08	9.21
4811	NASDAQ	PRDO	Mon, Apr 17, 2017	9.08	9.19	8.97	9.19
4810	NASDAQ	PRDO	Thu, Apr 13, 2017	9.03	9.14	8.89	9.05
4809	NASDAQ	PRDO	Wed, Apr 12, 2017	9.17	9.22	8.97	9.02
4808	NASDAQ	PRDO	Tue, Apr 11, 2017	9.01	9.25	8.99	9.22
4807	NASDAQ	PRDO	Mon, Apr 10, 2017	9.20	9.28	9.01	9.05
4806	NASDAQ	PRDO	Fri, Apr 7, 2017	9.06	9.33	9.06	9.21
4805	NASDAQ	PRDO	Thu, Apr 6, 2017	8.85	9.12	8.77	9.11
4804	NASDAQ	PRDO	Wed, Apr 5, 2017	8.69	8.85	8.66	8.83
4803	NASDAQ	PRDO	Tue, Apr 4, 2017	8.65	8.72	8.62	8.68
4802	NASDAQ	PRDO	Mon, Apr 3, 2017	8.69	8.79	8.62	8.65
4801	NASDAQ	PRDO	Fri, Mar 31, 2017	8.72	8.81	8.61	8.70
4800	NASDAQ	PRDO	Thu, Mar 30, 2017	8.59	8.74	8.54	8.71
4799	NASDAQ	PRDO	Wed, Mar 29, 2017	8.65	8.75	8.57	8.58
4798	NASDAQ	PRDO	Tue, Mar 28, 2017	8.64	8.70	8.53	8.68
4797	NASDAQ	PRDO	Mon, Mar 27, 2017	8.52	8.66	8.39	8.65
4796	NASDAQ	PRDO	Fri, Mar 24, 2017	8.45	8.71	8.43	8.66
4795	NASDAQ	PRDO	Thu, Mar 23, 2017	8.42	8.51	8.40	8.42
4794	NASDAQ	PRDO	Wed, Mar 22, 2017	8.41	8.61	8.32	8.41
4793	NASDAQ	PRDO	Tue, Mar 21, 2017	8.78	8.78	8.40	8.46
4792	NASDAQ	PRDO	Mon, Mar 20, 2017	8.39	8.71	8.28	8.71
4791	NASDAQ	PRDO	Fri, Mar 17, 2017	8.11	8.45	8.11	8.37
4790	NASDAQ	PRDO	Thu, Mar 16, 2017	8.23	8.28	8.14	8.17
4789	NASDAQ	PRDO	Wed, Mar 15, 2017	8.00	8.21	7.95	8.18
4788	NASDAQ	PRDO	Tue, Mar 14, 2017	8.12	8.12	7.76	7.95
4787	NASDAQ	PRDO	Mon, Mar 13, 2017	8.24	8.26	8.12	8.13
4786	NASDAQ	PRDO	Fri, Mar 10, 2017	8.31	8.31	8.22	8.25
4785	NASDAQ	PRDO	Thu, Mar 9, 2017	8.20	8.26	8.18	8.23
4784	NASDAQ	PRDO	Wed, Mar 8, 2017	8.33	8.39	8.18	8.18
4783	NASDAQ	PRDO	Tue, Mar 7, 2017	8.31	8.40	8.29	8.29
4782	NASDAQ	PRDO	Mon, Mar 6, 2017	8.40	8.53	8.26	8.30
4781	NASDAQ	PRDO	Fri, Mar 3, 2017	8.33	8.45	8.24	8.44
4780	NASDAQ	PRDO	Thu, Mar 2, 2017	8.45	8.54	8.29	8.30
4779	NASDAQ	PRDO	Wed, Mar 1, 2017	8.45	8.56	8.38	8.44
4778	NASDAQ	PRDO	Tue, Feb 28, 2017	8.41	8.45	8.28	8.33
4777	NASDAQ	PRDO	Mon, Feb 27, 2017	8.35	8.47	8.32	8.40
4776	NASDAQ	PRDO	Fri, Feb 24, 2017	8.67	8.90	7.62	8.32
4775	NASDAQ	PRDO	Thu, Feb 23, 2017	9.50	9.52	9.19	9.33
4774	NASDAQ	PRDO	Wed, Feb 22, 2017	9.22	9.51	9.18	9.50
4773	NASDAQ	PRDO	Tue, Feb 21, 2017	9.37	9.49	9.20	9.23
4772	NASDAQ	PRDO	Fri, Feb 17, 2017	9.14	9.39	9.10	9.34
4771	NASDAQ	PRDO	Thu, Feb 16, 2017	9.48	9.53	9.11	9.13
4770	NASDAQ	PRDO	Wed, Feb 15, 2017	9.31	9.55	9.28	9.49
4769	NASDAQ	PRDO	Tue, Feb 14, 2017	9.44	9.51	9.32	9.37
4768	NASDAQ	PRDO	Mon, Feb 13, 2017	9.47	9.82	9.39	9.49
4767	NASDAQ	PRDO	Fri, Feb 10, 2017	9.44	9.51	9.37	9.45
4766	NASDAQ	PRDO	Thu, Feb 9, 2017	9.24	9.47	9.21	9.43
4765	NASDAQ	PRDO	Wed, Feb 8, 2017	9.50	9.55	9.16	9.23
4764	NASDAQ	PRDO	Tue, Feb 7, 2017	9.61	9.71	9.40	9.52
4763	NASDAQ	PRDO	Mon, Feb 6, 2017	9.65	9.88	9.58	9.62
4762	NASDAQ	PRDO	Fri, Feb 3, 2017	9.72	9.75	9.55	9.71
4761	NASDAQ	PRDO	Thu, Feb 2, 2017	9.72	9.72	9.47	9.64
4760	NASDAQ	PRDO	Wed, Feb 1, 2017	9.85	9.96	9.61	9.78
4759	NASDAQ	PRDO	Tue, Jan 31, 2017	9.52	9.80	9.42	9.77
4758	NASDAQ	PRDO	Mon, Jan 30, 2017	9.85	9.91	9.45	9.58
4757	NASDAQ	PRDO	Fri, Jan 27, 2017	10.09	10.11	9.88	9.95
4756	NASDAQ	PRDO	Thu, Jan 26, 2017	10.00	10.12	9.95	10.01
4755	NASDAQ	PRDO	Wed, Jan 25, 2017	10.12	10.23	9.88	10.01
4754	NASDAQ	PRDO	Tue, Jan 24, 2017	9.90	10.03	9.81	9.98
4753	NASDAQ	PRDO	Mon, Jan 23, 2017	9.96	10.06	9.76	9.86
4752	NASDAQ	PRDO	Fri, Jan 20, 2017	9.78	10.04	9.76	10.00
4751	NASDAQ	PRDO	Thu, Jan 19, 2017	10.30	10.30	9.77	9.78
4750	NASDAQ	PRDO	Wed, Jan 18, 2017	10.06	10.29	9.85	10.27
4749	NASDAQ	PRDO	Tue, Jan 17, 2017	10.02	10.07	9.93	9.99
4748	NASDAQ	PRDO	Fri, Jan 13, 2017	10.12	10.20	10.05	10.12
4747	NASDAQ	PRDO	Thu, Jan 12, 2017	10.12	10.20	9.95	10.09
4746	NASDAQ	PRDO	Wed, Jan 11, 2017	10.28	10.28	10.06	10.17
4745	NASDAQ	PRDO	Tue, Jan 10, 2017	10.00	10.34	10.00	10.28
4744	NASDAQ	PRDO	Mon, Jan 9, 2017	9.94	10.24	9.90	10.04
4743	NASDAQ	PRDO	Fri, Jan 6, 2017	10.14	10.14	9.91	10.02
4742	NASDAQ	PRDO	Thu, Jan 5, 2017	10.14	10.24	9.94	10.09
4741	NASDAQ	PRDO	Wed, Jan 4, 2017	9.89	10.20	9.86	10.17
4740	NASDAQ	PRDO	Tue, Jan 3, 2017	10.16	10.30	9.72	9.80
4739	NASDAQ	PRDO	Fri, Dec 30, 2016	10.07	10.10	9.89	10.09
4738	NASDAQ	PRDO	Thu, Dec 29, 2016	10.16	10.31	9.96	9.99
4737	NASDAQ	PRDO	Wed, Dec 28, 2016	10.33	10.40	10.14	10.17
4736	NASDAQ	PRDO	Tue, Dec 27, 2016	10.22	10.39	10.21	10.38
4735	NASDAQ	PRDO	Fri, Dec 23, 2016	10.28	10.30	10.13	10.21
4734	NASDAQ	PRDO	Thu, Dec 22, 2016	10.33	10.40	10.12	10.28
4733	NASDAQ	PRDO	Wed, Dec 21, 2016	10.49	10.50	10.26	10.29
4732	NASDAQ	PRDO	Tue, Dec 20, 2016	10.41	10.50	10.35	10.50
4731	NASDAQ	PRDO	Mon, Dec 19, 2016	10.23	10.47	10.19	10.41
4730	NASDAQ	PRDO	Fri, Dec 16, 2016	10.45	10.51	10.12	10.45
4729	NASDAQ	PRDO	Thu, Dec 15, 2016	10.40	10.53	10.27	10.45
4728	NASDAQ	PRDO	Wed, Dec 14, 2016	10.46	10.50	10.28	10.34
4727	NASDAQ	PRDO	Tue, Dec 13, 2016	10.34	10.52	10.30	10.50
4726	NASDAQ	PRDO	Mon, Dec 12, 2016	10.23	10.45	9.91	10.32
4725	NASDAQ	PRDO	Fri, Dec 9, 2016	10.20	10.26	10.06	10.26
4724	NASDAQ	PRDO	Thu, Dec 8, 2016	10.22	10.27	10.08	10.18
4723	NASDAQ	PRDO	Wed, Dec 7, 2016	10.27	10.27	10.16	10.22
4722	NASDAQ	PRDO	Tue, Dec 6, 2016	10.00	10.27	9.88	10.25
4721	NASDAQ	PRDO	Mon, Dec 5, 2016	10.13	10.27	9.79	10.00
4720	NASDAQ	PRDO	Fri, Dec 2, 2016	9.91	10.15	9.82	10.05
4719	NASDAQ	PRDO	Thu, Dec 1, 2016	10.00	10.01	9.80	9.88
4718	NASDAQ	PRDO	Wed, Nov 30, 2016	10.00	10.03	9.91	9.99
4717	NASDAQ	PRDO	Tue, Nov 29, 2016	9.98	10.01	9.87	9.98
4716	NASDAQ	PRDO	Mon, Nov 28, 2016	10.05	10.07	9.88	9.92
4715	NASDAQ	PRDO	Fri, Nov 25, 2016	10.15	10.15	9.73	10.05
4714	NASDAQ	PRDO	Wed, Nov 23, 2016	9.95	10.09	9.86	10.05
4713	NASDAQ	PRDO	Tue, Nov 22, 2016	10.05	10.05	9.72	10.00
4712	NASDAQ	PRDO	Mon, Nov 21, 2016	9.74	9.80	9.53	9.79
4711	NASDAQ	PRDO	Fri, Nov 18, 2016	9.66	9.96	9.60	9.72
4710	NASDAQ	PRDO	Thu, Nov 17, 2016	9.75	9.87	9.58	9.67
4709	NASDAQ	PRDO	Wed, Nov 16, 2016	9.36	9.81	9.17	9.79
4708	NASDAQ	PRDO	Tue, Nov 15, 2016	9.14	9.45	9.14	9.41
4707	NASDAQ	PRDO	Mon, Nov 14, 2016	9.25	9.42	9.11	9.27
4706	NASDAQ	PRDO	Fri, Nov 11, 2016	9.17	9.35	9.00	9.28
4705	NASDAQ	PRDO	Thu, Nov 10, 2016	8.64	9.27	8.39	9.21
4704	NASDAQ	PRDO	Wed, Nov 9, 2016	7.08	8.54	6.81	8.52
4703	NASDAQ	PRDO	Tue, Nov 8, 2016	7.04	7.23	7.01	7.22
4702	NASDAQ	PRDO	Mon, Nov 7, 2016	6.82	7.35	6.82	7.08
4701	NASDAQ	PRDO	Fri, Nov 4, 2016	7.26	7.26	6.55	6.70
4700	NASDAQ	PRDO	Thu, Nov 3, 2016	7.04	7.37	7.00	7.26
4699	NASDAQ	PRDO	Wed, Nov 2, 2016	7.14	7.21	6.95	6.99
4698	NASDAQ	PRDO	Tue, Nov 1, 2016	7.18	7.33	7.03	7.18
4697	NASDAQ	PRDO	Mon, Oct 31, 2016	7.07	7.21	6.93	7.19
4696	NASDAQ	PRDO	Fri, Oct 28, 2016	7.32	7.33	7.04	7.07
4695	NASDAQ	PRDO	Thu, Oct 27, 2016	7.30	7.40	7.19	7.33
4694	NASDAQ	PRDO	Wed, Oct 26, 2016	7.09	7.29	7.04	7.25
4693	NASDAQ	PRDO	Tue, Oct 25, 2016	7.15	7.26	7.10	7.15
4692	NASDAQ	PRDO	Mon, Oct 24, 2016	7.10	7.27	7.08	7.16
4691	NASDAQ	PRDO	Fri, Oct 21, 2016	7.04	7.12	6.71	7.09
4690	NASDAQ	PRDO	Thu, Oct 20, 2016	7.06	7.15	7.03	7.10
4689	NASDAQ	PRDO	Wed, Oct 19, 2016	6.89	7.07	6.87	7.05
4688	NASDAQ	PRDO	Tue, Oct 18, 2016	7.00	7.04	6.87	6.88
4687	NASDAQ	PRDO	Mon, Oct 17, 2016	6.87	7.00	6.85	6.96
4686	NASDAQ	PRDO	Fri, Oct 14, 2016	6.83	6.96	6.81	6.90
4685	NASDAQ	PRDO	Thu, Oct 13, 2016	6.79	6.92	6.70	6.77
4684	NASDAQ	PRDO	Wed, Oct 12, 2016	6.99	6.99	6.85	6.87
4683	NASDAQ	PRDO	Tue, Oct 11, 2016	7.13	7.13	6.93	6.96
4682	NASDAQ	PRDO	Mon, Oct 10, 2016	7.02	7.18	7.01	7.15
4681	NASDAQ	PRDO	Fri, Oct 7, 2016	7.07	7.07	6.94	6.98
4680	NASDAQ	PRDO	Thu, Oct 6, 2016	6.92	7.09	6.90	7.07
4679	NASDAQ	PRDO	Wed, Oct 5, 2016	6.76	7.05	6.70	6.95
4678	NASDAQ	PRDO	Tue, Oct 4, 2016	6.81	6.89	6.70	6.72
4677	NASDAQ	PRDO	Mon, Oct 3, 2016	6.79	6.96	6.77	6.80
4676	NASDAQ	PRDO	Fri, Sep 30, 2016	6.76	6.92	6.72	6.79
4675	NASDAQ	PRDO	Thu, Sep 29, 2016	6.81	6.86	6.72	6.73
4674	NASDAQ	PRDO	Wed, Sep 28, 2016	6.72	6.85	6.59	6.84
4673	NASDAQ	PRDO	Tue, Sep 27, 2016	6.73	6.77	6.63	6.73
4672	NASDAQ	PRDO	Mon, Sep 26, 2016	6.83	6.88	6.73	6.73
4671	NASDAQ	PRDO	Fri, Sep 23, 2016	7.02	7.02	6.80	6.90
4670	NASDAQ	PRDO	Thu, Sep 22, 2016	6.88	7.08	6.88	7.05
4669	NASDAQ	PRDO	Wed, Sep 21, 2016	6.76	6.85	6.76	6.84
4668	NASDAQ	PRDO	Tue, Sep 20, 2016	6.79	6.85	6.61	6.74
4667	NASDAQ	PRDO	Mon, Sep 19, 2016	6.82	6.84	6.67	6.73
4666	NASDAQ	PRDO	Fri, Sep 16, 2016	6.83	6.85	6.65	6.80
4665	NASDAQ	PRDO	Thu, Sep 15, 2016	6.57	6.86	6.55	6.80
4664	NASDAQ	PRDO	Wed, Sep 14, 2016	6.55	6.67	6.39	6.58
4663	NASDAQ	PRDO	Tue, Sep 13, 2016	6.54	6.60	6.42	6.52
4662	NASDAQ	PRDO	Mon, Sep 12, 2016	6.44	6.60	6.25	6.59
4661	NASDAQ	PRDO	Fri, Sep 9, 2016	6.65	6.74	6.46	6.46
4660	NASDAQ	PRDO	Thu, Sep 8, 2016	6.73	6.82	6.63	6.71
4659	NASDAQ	PRDO	Wed, Sep 7, 2016	6.64	6.75	6.55	6.72
4658	NASDAQ	PRDO	Tue, Sep 6, 2016	6.66	6.79	6.55	6.64
4657	NASDAQ	PRDO	Fri, Sep 2, 2016	6.59	6.73	6.58	6.64
4656	NASDAQ	PRDO	Thu, Sep 1, 2016	6.59	6.72	6.51	6.57
4655	NASDAQ	PRDO	Wed, Aug 31, 2016	6.70	6.79	6.37	6.54
4654	NASDAQ	PRDO	Tue, Aug 30, 2016	6.73	6.79	6.64	6.68
4653	NASDAQ	PRDO	Mon, Aug 29, 2016	6.81	6.92	6.70	6.75
4652	NASDAQ	PRDO	Fri, Aug 26, 2016	6.99	7.03	6.66	6.74
4651	NASDAQ	PRDO	Thu, Aug 25, 2016	7.11	7.20	6.99	7.01
4650	NASDAQ	PRDO	Wed, Aug 24, 2016	7.08	7.20	7.07	7.10
4649	NASDAQ	PRDO	Tue, Aug 23, 2016	7.22	7.28	7.08	7.11
4648	NASDAQ	PRDO	Mon, Aug 22, 2016	7.35	7.36	7.15	7.22
4647	NASDAQ	PRDO	Fri, Aug 19, 2016	7.24	7.36	7.17	7.34
4646	NASDAQ	PRDO	Thu, Aug 18, 2016	7.13	7.34	7.11	7.25
4645	NASDAQ	PRDO	Wed, Aug 17, 2016	7.08	7.15	7.04	7.10
4644	NASDAQ	PRDO	Tue, Aug 16, 2016	7.11	7.30	7.06	7.08
4643	NASDAQ	PRDO	Mon, Aug 15, 2016	7.03	7.22	7.00	7.16
4642	NASDAQ	PRDO	Fri, Aug 12, 2016	7.12	7.20	6.96	7.01
4641	NASDAQ	PRDO	Thu, Aug 11, 2016	7.12	7.20	7.09	7.12
4640	NASDAQ	PRDO	Wed, Aug 10, 2016	7.33	7.33	7.07	7.10
4639	NASDAQ	PRDO	Tue, Aug 9, 2016	7.48	7.50	7.28	7.35
4638	NASDAQ	PRDO	Mon, Aug 8, 2016	7.08	7.53	7.01	7.51
4637	NASDAQ	PRDO	Fri, Aug 5, 2016	7.22	7.23	7.13	7.15
4636	NASDAQ	PRDO	Thu, Aug 4, 2016	7.34	7.50	7.15	7.22
4635	NASDAQ	PRDO	Wed, Aug 3, 2016	7.04	7.09	6.77	7.03
4634	NASDAQ	PRDO	Tue, Aug 2, 2016	7.10	7.14	6.98	7.02
4633	NASDAQ	PRDO	Mon, Aug 1, 2016	6.93	7.17	6.93	7.10
4632	NASDAQ	PRDO	Fri, Jul 29, 2016	6.70	6.93	6.70	6.91
4631	NASDAQ	PRDO	Thu, Jul 28, 2016	6.66	6.74	6.65	6.68
4630	NASDAQ	PRDO	Wed, Jul 27, 2016	6.79	6.82	6.56	6.69
4629	NASDAQ	PRDO	Tue, Jul 26, 2016	6.53	6.79	6.52	6.78
4628	NASDAQ	PRDO	Mon, Jul 25, 2016	6.66	6.68	6.50	6.53
4627	NASDAQ	PRDO	Fri, Jul 22, 2016	6.70	6.75	6.62	6.66
4626	NASDAQ	PRDO	Thu, Jul 21, 2016	6.67	6.83	6.65	6.69
4625	NASDAQ	PRDO	Wed, Jul 20, 2016	6.67	6.75	6.58	6.70
4624	NASDAQ	PRDO	Tue, Jul 19, 2016	6.73	6.77	6.58	6.63
4623	NASDAQ	PRDO	Mon, Jul 18, 2016	6.73	6.86	6.44	6.71
4622	NASDAQ	PRDO	Fri, Jul 15, 2016	6.85	6.89	6.64	6.76
4621	NASDAQ	PRDO	Thu, Jul 14, 2016	6.87	6.90	6.47	6.81
4620	NASDAQ	PRDO	Wed, Jul 13, 2016	6.85	6.94	6.73	6.84
4619	NASDAQ	PRDO	Tue, Jul 12, 2016	6.68	6.92	6.63	6.84
4618	NASDAQ	PRDO	Mon, Jul 11, 2016	6.47	6.74	6.46	6.65
4617	NASDAQ	PRDO	Fri, Jul 8, 2016	6.16	6.40	6.14	6.39
4616	NASDAQ	PRDO	Thu, Jul 7, 2016	6.04	6.17	5.89	6.12
4615	NASDAQ	PRDO	Wed, Jul 6, 2016	6.05	6.16	5.86	6.04
4614	NASDAQ	PRDO	Tue, Jul 5, 2016	6.02	6.17	5.99	6.06
4613	NASDAQ	PRDO	Fri, Jul 1, 2016	5.93	6.29	5.91	6.14
4612	NASDAQ	PRDO	Thu, Jun 30, 2016	5.69	6.00	5.69	5.95
4611	NASDAQ	PRDO	Wed, Jun 29, 2016	5.55	5.72	5.46	5.68
4610	NASDAQ	PRDO	Tue, Jun 28, 2016	5.45	5.56	5.40	5.44
4609	NASDAQ	PRDO	Mon, Jun 27, 2016	5.48	5.55	5.32	5.38
4608	NASDAQ	PRDO	Fri, Jun 24, 2016	5.57	5.65	5.32	5.53
4607	NASDAQ	PRDO	Thu, Jun 23, 2016	5.75	5.87	5.72	5.85
4606	NASDAQ	PRDO	Wed, Jun 22, 2016	5.86	5.86	5.69	5.71
4605	NASDAQ	PRDO	Tue, Jun 21, 2016	5.85	5.92	5.72	5.85
4604	NASDAQ	PRDO	Mon, Jun 20, 2016	5.91	5.96	5.80	5.82
4603	NASDAQ	PRDO	Fri, Jun 17, 2016	5.80	6.04	5.77	5.83
4602	NASDAQ	PRDO	Thu, Jun 16, 2016	5.76	5.83	5.65	5.79
4601	NASDAQ	PRDO	Wed, Jun 15, 2016	5.74	5.89	5.69	5.79
4600	NASDAQ	PRDO	Tue, Jun 14, 2016	5.70	5.84	5.59	5.70
4599	NASDAQ	PRDO	Mon, Jun 13, 2016	5.66	5.80	5.61	5.72
4598	NASDAQ	PRDO	Fri, Jun 10, 2016	5.80	5.82	5.64	5.66
4597	NASDAQ	PRDO	Thu, Jun 9, 2016	5.95	6.19	5.77	5.82
4596	NASDAQ	PRDO	Wed, Jun 8, 2016	5.77	5.99	5.72	5.95
4595	NASDAQ	PRDO	Tue, Jun 7, 2016	5.87	5.90	5.69	5.73
4594	NASDAQ	PRDO	Mon, Jun 6, 2016	5.77	5.86	5.72	5.84
4593	NASDAQ	PRDO	Fri, Jun 3, 2016	5.71	5.78	5.62	5.74
4592	NASDAQ	PRDO	Thu, Jun 2, 2016	5.74	5.77	5.62	5.75
4591	NASDAQ	PRDO	Wed, Jun 1, 2016	5.86	5.91	5.66	5.77
4590	NASDAQ	PRDO	Tue, May 31, 2016	5.76	5.95	5.73	5.88
4589	NASDAQ	PRDO	Fri, May 27, 2016	5.73	5.83	5.65	5.76
4588	NASDAQ	PRDO	Thu, May 26, 2016	5.64	5.75	5.55	5.72
4587	NASDAQ	PRDO	Wed, May 25, 2016	5.99	5.99	5.55	5.64
4586	NASDAQ	PRDO	Tue, May 24, 2016	5.85	6.02	5.65	5.96
4585	NASDAQ	PRDO	Mon, May 23, 2016	5.72	5.91	5.68	5.78
4584	NASDAQ	PRDO	Fri, May 20, 2016	5.70	5.88	5.68	5.76
4583	NASDAQ	PRDO	Thu, May 19, 2016	5.63	5.69	5.44	5.67
4582	NASDAQ	PRDO	Wed, May 18, 2016	5.63	5.80	5.59	5.65
4581	NASDAQ	PRDO	Tue, May 17, 2016	5.71	5.83	5.59	5.65
4580	NASDAQ	PRDO	Mon, May 16, 2016	5.58	5.83	5.56	5.70
4579	NASDAQ	PRDO	Fri, May 13, 2016	5.58	5.77	5.56	5.58
4578	NASDAQ	PRDO	Thu, May 12, 2016	5.75	5.83	5.51	5.58
4577	NASDAQ	PRDO	Wed, May 11, 2016	5.93	6.02	5.78	5.79
4576	NASDAQ	PRDO	Tue, May 10, 2016	5.97	6.04	5.73	5.92
4575	NASDAQ	PRDO	Mon, May 9, 2016	5.74	6.04	5.65	5.92
4574	NASDAQ	PRDO	Fri, May 6, 2016	5.73	5.99	5.73	5.79
4573	NASDAQ	PRDO	Thu, May 5, 2016	5.41	6.11	5.27	5.90
4572	NASDAQ	PRDO	Wed, May 4, 2016	5.21	5.35	5.11	5.17
4571	NASDAQ	PRDO	Tue, May 3, 2016	5.40	5.43	5.14	5.26
4570	NASDAQ	PRDO	Mon, May 2, 2016	5.34	5.45	5.20	5.43
4569	NASDAQ	PRDO	Fri, Apr 29, 2016	5.51	5.53	5.20	5.34
4568	NASDAQ	PRDO	Thu, Apr 28, 2016	5.54	5.72	5.46	5.55
4567	NASDAQ	PRDO	Wed, Apr 27, 2016	5.31	5.70	5.31	5.60
4566	NASDAQ	PRDO	Tue, Apr 26, 2016	5.18	5.42	5.03	5.34
4565	NASDAQ	PRDO	Mon, Apr 25, 2016	5.02	5.24	4.99	5.12
4564	NASDAQ	PRDO	Fri, Apr 22, 2016	5.06	5.10	4.96	5.00
4563	NASDAQ	PRDO	Thu, Apr 21, 2016	5.24	5.27	5.03	5.04
4562	NASDAQ	PRDO	Wed, Apr 20, 2016	4.85	5.26	4.77	5.20
4561	NASDAQ	PRDO	Tue, Apr 19, 2016	4.95	5.00	4.80	4.83
4560	NASDAQ	PRDO	Mon, Apr 18, 2016	4.81	4.94	4.75	4.90
4559	NASDAQ	PRDO	Fri, Apr 15, 2016	4.70	4.85	4.67	4.82
4558	NASDAQ	PRDO	Thu, Apr 14, 2016	4.77	4.89	4.61	4.72
4557	NASDAQ	PRDO	Wed, Apr 13, 2016	4.70	4.90	4.60	4.74
4556	NASDAQ	PRDO	Tue, Apr 12, 2016	4.51	4.76	4.44	4.63
4555	NASDAQ	PRDO	Mon, Apr 11, 2016	4.43	4.61	4.42	4.48
4554	NASDAQ	PRDO	Fri, Apr 8, 2016	4.50	4.59	4.38	4.41
4553	NASDAQ	PRDO	Thu, Apr 7, 2016	4.58	4.68	4.39	4.44
4552	NASDAQ	PRDO	Wed, Apr 6, 2016	4.35	4.75	4.35	4.62
4551	NASDAQ	PRDO	Tue, Apr 5, 2016	4.42	4.42	4.42	4.38
4550	NASDAQ	PRDO	Mon, Apr 4, 2016	4.47	4.80	4.38	4.42
4549	NASDAQ	PRDO	Fri, Apr 1, 2016	4.48	4.60	4.35	4.45
4548	NASDAQ	PRDO	Thu, Mar 31, 2016	4.34	4.60	4.31	4.33
4547	NASDAQ	PRDO	Wed, Mar 30, 2016	4.37	4.56	4.29	4.33
4546	NASDAQ	PRDO	Tue, Mar 29, 2016	4.35	4.61	4.26	4.30
4545	NASDAQ	PRDO	Mon, Mar 28, 2016	4.44	4.47	4.33	4.33
4544	NASDAQ	PRDO	Thu, Mar 24, 2016	4.30	4.30	4.30	4.44
4543	NASDAQ	PRDO	Wed, Mar 23, 2016	4.38	4.56	4.29	4.30
4542	NASDAQ	PRDO	Tue, Mar 22, 2016	4.49	4.52	4.37	4.39
4541	NASDAQ	PRDO	Mon, Mar 21, 2016	4.64	4.75	4.49	4.49
4540	NASDAQ	PRDO	Fri, Mar 18, 2016	4.47	4.77	4.47	4.74
4539	NASDAQ	PRDO	Thu, Mar 17, 2016	4.40	4.47	4.34	4.46
4538	NASDAQ	PRDO	Wed, Mar 16, 2016	4.35	4.46	4.34	4.44
4537	NASDAQ	PRDO	Tue, Mar 15, 2016	4.60	4.60	4.60	4.37
4536	NASDAQ	PRDO	Mon, Mar 14, 2016	4.57	4.67	4.55	4.60
4535	NASDAQ	PRDO	Fri, Mar 11, 2016	4.50	4.58	4.37	4.56
4534	NASDAQ	PRDO	Thu, Mar 10, 2016	4.73	4.80	4.73	4.73
4533	NASDAQ	PRDO	Wed, Mar 9, 2016	4.44	4.44	4.44	4.73
4532	NASDAQ	PRDO	Tue, Mar 8, 2016	4.69	4.69	4.69	4.69
4531	NASDAQ	PRDO	Mon, Mar 7, 2016	4.32	4.55	4.24	4.49
4530	NASDAQ	PRDO	Fri, Mar 4, 2016	4.36	4.36	4.36	4.32
4529	NASDAQ	PRDO	Thu, Mar 3, 2016	3.99	3.99	3.99	4.02
4528	NASDAQ	PRDO	Wed, Mar 2, 2016	3.24	4.08	3.19	3.25
4527	NASDAQ	PRDO	Tue, Mar 1, 2016	3.05	3.05	3.00	2.98
4526	NASDAQ	PRDO	Mon, Feb 29, 2016	2.52	2.59	2.48	2.52
4525	NASDAQ	PRDO	Fri, Feb 26, 2016	2.54	2.54	2.54	2.52
4524	NASDAQ	PRDO	Thu, Feb 25, 2016	2.58	2.63	2.52	2.54
4523	NASDAQ	PRDO	Wed, Feb 24, 2016	2.50	2.59	2.50	2.58
4522	NASDAQ	PRDO	Tue, Feb 23, 2016	2.53	2.58	2.49	2.50
4521	NASDAQ	PRDO	Mon, Feb 22, 2016	2.47	2.57	2.47	2.53
4520	NASDAQ	PRDO	Fri, Feb 19, 2016	2.41	2.47	2.40	2.45
4519	NASDAQ	PRDO	Thu, Feb 18, 2016	2.44	2.44	2.36	2.42
4518	NASDAQ	PRDO	Wed, Feb 17, 2016	2.44	2.48	2.40	2.42
4517	NASDAQ	PRDO	Tue, Feb 16, 2016	2.35	2.50	2.33	2.43
4516	NASDAQ	PRDO	Fri, Feb 12, 2016	2.32	2.37	2.23	2.33
4515	NASDAQ	PRDO	Thu, Feb 11, 2016	2.36	2.54	2.28	2.35
4514	NASDAQ	PRDO	Wed, Feb 10, 2016	2.42	2.54	2.40	2.41
4513	NASDAQ	PRDO	Tue, Feb 9, 2016	2.37	2.49	2.37	2.41
4512	NASDAQ	PRDO	Mon, Feb 8, 2016	2.41	2.44	2.26	2.42
4511	NASDAQ	PRDO	Fri, Feb 5, 2016	2.54	2.57	2.41	2.42
4510	NASDAQ	PRDO	Thu, Feb 4, 2016	2.57	2.58	2.52	2.56
4509	NASDAQ	PRDO	Wed, Feb 3, 2016	2.64	2.68	2.52	2.57
4508	NASDAQ	PRDO	Tue, Feb 2, 2016	2.69	2.71	2.55	2.63
4507	NASDAQ	PRDO	Mon, Feb 1, 2016	2.84	2.90	2.61	2.74
4506	NASDAQ	PRDO	Fri, Jan 29, 2016	2.77	2.90	2.42	2.88
4505	NASDAQ	PRDO	Thu, Jan 28, 2016	2.79	2.82	2.74	2.77
4504	NASDAQ	PRDO	Wed, Jan 27, 2016	2.71	2.89	2.65	2.78
4503	NASDAQ	PRDO	Tue, Jan 26, 2016	2.82	2.83	2.56	2.73
4502	NASDAQ	PRDO	Mon, Jan 25, 2016	3.05	3.05	2.75	2.81
4501	NASDAQ	PRDO	Fri, Jan 22, 2016	3.07	3.14	3.02	3.04
4500	NASDAQ	PRDO	Thu, Jan 21, 2016	3.16	3.22	3.01	3.03
4499	NASDAQ	PRDO	Wed, Jan 20, 2016	2.93	3.20	2.86	3.17
4498	NASDAQ	PRDO	Tue, Jan 19, 2016	2.98	3.03	2.89	2.98
4497	NASDAQ	PRDO	Fri, Jan 15, 2016	2.93	2.99	2.88	2.95
4496	NASDAQ	PRDO	Thu, Jan 14, 2016	2.84	3.08	2.80	3.02
4495	NASDAQ	PRDO	Wed, Jan 13, 2016	2.87	2.99	2.75	2.81
4494	NASDAQ	PRDO	Tue, Jan 12, 2016	2.86	2.89	2.74	2.85
4493	NASDAQ	PRDO	Mon, Jan 11, 2016	3.03	3.03	2.78	2.81
4492	NASDAQ	PRDO	Fri, Jan 8, 2016	2.99	3.08	2.88	2.98
4491	NASDAQ	PRDO	Thu, Jan 7, 2016	3.01	3.10	2.91	2.98
4490	NASDAQ	PRDO	Wed, Jan 6, 2016	3.10	3.15	2.95	3.06
4489	NASDAQ	PRDO	Tue, Jan 5, 2016	3.26	3.29	3.10	3.14
4488	NASDAQ	PRDO	Mon, Jan 4, 2016	3.56	3.59	3.25	3.26
4487	NASDAQ	PRDO	Thu, Dec 31, 2015	3.71	3.82	3.62	3.63
4486	NASDAQ	PRDO	Wed, Dec 30, 2015	3.75	3.83	3.71	3.74
4485	NASDAQ	PRDO	Tue, Dec 29, 2015	3.72	3.85	3.70	3.77
4484	NASDAQ	PRDO	Mon, Dec 28, 2015	3.81	3.81	3.67	3.71
4483	NASDAQ	PRDO	Thu, Dec 24, 2015	3.78	3.88	3.74	3.83
4482	NASDAQ	PRDO	Wed, Dec 23, 2015	3.70	3.84	3.68	3.76
4481	NASDAQ	PRDO	Tue, Dec 22, 2015	3.45	3.67	3.45	3.67
4480	NASDAQ	PRDO	Mon, Dec 21, 2015	3.42	3.47	3.36	3.45
4479	NASDAQ	PRDO	Fri, Dec 18, 2015	3.57	3.62	3.32	3.42
4478	NASDAQ	PRDO	Thu, Dec 17, 2015	3.52	3.69	3.52	3.60
4477	NASDAQ	PRDO	Wed, Dec 16, 2015	3.53	3.62	3.50	3.60
4476	NASDAQ	PRDO	Tue, Dec 15, 2015	3.62	3.69	3.47	3.50
4475	NASDAQ	PRDO	Mon, Dec 14, 2015	3.54	3.63	3.46	3.60
4474	NASDAQ	PRDO	Fri, Dec 11, 2015	3.57	3.65	3.52	3.55
4473	NASDAQ	PRDO	Thu, Dec 10, 2015	3.60	3.74	3.55	3.66
4472	NASDAQ	PRDO	Wed, Dec 9, 2015	3.70	3.79	3.55	3.60
4471	NASDAQ	PRDO	Tue, Dec 8, 2015	3.72	3.78	3.63	3.70
4470	NASDAQ	PRDO	Mon, Dec 7, 2015	3.88	3.91	3.69	3.75
4469	NASDAQ	PRDO	Fri, Dec 4, 2015	3.92	3.99	3.82	3.92
4468	NASDAQ	PRDO	Thu, Dec 3, 2015	4.06	4.12	3.91	3.92
4467	NASDAQ	PRDO	Wed, Dec 2, 2015	4.05	4.14	4.00	4.04
4466	NASDAQ	PRDO	Tue, Dec 1, 2015	4.26	4.31	4.03	4.05
4465	NASDAQ	PRDO	Mon, Nov 30, 2015	3.95	4.25	3.95	4.22
4464	NASDAQ	PRDO	Fri, Nov 27, 2015	3.97	4.00	3.91	3.95
4463	NASDAQ	PRDO	Wed, Nov 25, 2015	3.95	4.07	3.84	3.99
4462	NASDAQ	PRDO	Tue, Nov 24, 2015	4.12	4.17	3.93	3.95
4461	NASDAQ	PRDO	Mon, Nov 23, 2015	3.75	4.15	3.72	4.14
4460	NASDAQ	PRDO	Fri, Nov 20, 2015	3.79	3.83	3.75	3.76
4459	NASDAQ	PRDO	Thu, Nov 19, 2015	3.79	3.87	3.74	3.76
4458	NASDAQ	PRDO	Wed, Nov 18, 2015	3.92	4.00	3.78	3.79
4457	NASDAQ	PRDO	Tue, Nov 17, 2015	3.98	4.04	3.90	3.92
4456	NASDAQ	PRDO	Mon, Nov 16, 2015	3.97	4.05	3.87	4.00
4455	NASDAQ	PRDO	Fri, Nov 13, 2015	3.93	4.05	3.91	3.99
4454	NASDAQ	PRDO	Thu, Nov 12, 2015	3.92	4.02	3.88	3.97
4453	NASDAQ	PRDO	Wed, Nov 11, 2015	4.05	4.07	3.96	3.98
4452	NASDAQ	PRDO	Tue, Nov 10, 2015	3.99	4.12	3.94	4.05
4451	NASDAQ	PRDO	Mon, Nov 9, 2015	4.09	4.15	3.96	3.98
4450	NASDAQ	PRDO	Fri, Nov 6, 2015	4.21	4.28	3.89	4.07
4449	NASDAQ	PRDO	Thu, Nov 5, 2015	3.93	4.29	3.81	4.20
4448	NASDAQ	PRDO	Wed, Nov 4, 2015	4.94	4.94	3.77	3.93
4447	NASDAQ	PRDO	Tue, Nov 3, 2015	3.82	3.97	3.68	3.89
4446	NASDAQ	PRDO	Mon, Nov 2, 2015	3.61	3.89	3.61	3.84
4445	NASDAQ	PRDO	Fri, Oct 30, 2015	3.64	3.74	3.54	3.61
4444	NASDAQ	PRDO	Thu, Oct 29, 2015	3.80	3.85	3.52	3.62
4443	NASDAQ	PRDO	Wed, Oct 28, 2015	3.61	3.88	3.58	3.85
4442	NASDAQ	PRDO	Tue, Oct 27, 2015	3.73	3.84	3.51	3.57
4441	NASDAQ	PRDO	Mon, Oct 26, 2015	3.94	4.05	3.70	3.73
4440	NASDAQ	PRDO	Fri, Oct 23, 2015	3.99	4.00	3.81	3.94
4439	NASDAQ	PRDO	Thu, Oct 22, 2015	4.02	4.11	3.94	3.98
4438	NASDAQ	PRDO	Wed, Oct 21, 2015	4.23	4.26	3.98	3.99
4437	NASDAQ	PRDO	Tue, Oct 20, 2015	4.01	4.32	3.99	4.23
4436	NASDAQ	PRDO	Mon, Oct 19, 2015	4.02	4.12	3.68	4.00
4435	NASDAQ	PRDO	Fri, Oct 16, 2015	4.18	4.24	3.99	4.02
4434	NASDAQ	PRDO	Thu, Oct 15, 2015	4.01	4.21	3.90	4.16
4433	NASDAQ	PRDO	Wed, Oct 14, 2015	4.04	4.20	3.95	4.00
4432	NASDAQ	PRDO	Tue, Oct 13, 2015	3.99	4.15	3.99	4.06
4431	NASDAQ	PRDO	Mon, Oct 12, 2015	4.16	4.27	4.06	4.07
4430	NASDAQ	PRDO	Fri, Oct 9, 2015	4.12	4.20	4.00	4.14
4429	NASDAQ	PRDO	Thu, Oct 8, 2015	3.89	4.16	3.89	4.11
4428	NASDAQ	PRDO	Wed, Oct 7, 2015	3.93	4.07	3.88	3.92
4427	NASDAQ	PRDO	Tue, Oct 6, 2015	3.94	4.02	3.91	3.93
4426	NASDAQ	PRDO	Mon, Oct 5, 2015	3.80	4.05	3.80	3.97
4425	NASDAQ	PRDO	Fri, Oct 2, 2015	3.68	3.81	3.64	3.78
4424	NASDAQ	PRDO	Thu, Oct 1, 2015	3.74	3.83	3.60	3.70
4423	NASDAQ	PRDO	Wed, Sep 30, 2015	3.88	3.91	3.76	3.76
4422	NASDAQ	PRDO	Tue, Sep 29, 2015	3.96	3.96	3.81	3.84
4421	NASDAQ	PRDO	Mon, Sep 28, 2015	3.96	4.00	3.88	3.93
4420	NASDAQ	PRDO	Fri, Sep 25, 2015	4.05	4.08	3.90	3.95
4419	NASDAQ	PRDO	Thu, Sep 24, 2015	3.93	4.04	3.88	4.01
4418	NASDAQ	PRDO	Wed, Sep 23, 2015	4.18	4.18	3.92	3.93
4417	NASDAQ	PRDO	Tue, Sep 22, 2015	4.25	4.34	4.06	4.14
4416	NASDAQ	PRDO	Mon, Sep 21, 2015	4.23	4.36	4.15	4.28
4415	NASDAQ	PRDO	Fri, Sep 18, 2015	4.02	4.25	3.90	4.20
4414	NASDAQ	PRDO	Thu, Sep 17, 2015	4.06	4.12	3.93	4.01
4413	NASDAQ	PRDO	Wed, Sep 16, 2015	3.91	4.06	3.90	4.04
4412	NASDAQ	PRDO	Tue, Sep 15, 2015	3.91	4.04	3.59	3.91
4411	NASDAQ	PRDO	Mon, Sep 14, 2015	4.00	4.04	3.82	3.89
4410	NASDAQ	PRDO	Fri, Sep 11, 2015	3.96	4.01	3.89	3.99
4409	NASDAQ	PRDO	Thu, Sep 10, 2015	3.98	4.06	3.92	3.99
4408	NASDAQ	PRDO	Wed, Sep 9, 2015	4.00	4.04	3.86	3.97
4407	NASDAQ	PRDO	Tue, Sep 8, 2015	3.65	4.10	3.65	3.97
4406	NASDAQ	PRDO	Fri, Sep 4, 2015	3.57	3.72	3.53	3.59
4405	NASDAQ	PRDO	Thu, Sep 3, 2015	3.61	3.66	3.55	3.60
4404	NASDAQ	PRDO	Wed, Sep 2, 2015	3.65	3.69	3.58	3.59
4403	NASDAQ	PRDO	Tue, Sep 1, 2015	3.65	3.73	3.46	3.61
4402	NASDAQ	PRDO	Mon, Aug 31, 2015	3.75	3.91	3.65	3.71
4401	NASDAQ	PRDO	Fri, Aug 28, 2015	3.49	3.87	3.47	3.78
4400	NASDAQ	PRDO	Thu, Aug 27, 2015	3.50	3.60	3.39	3.51
4399	NASDAQ	PRDO	Wed, Aug 26, 2015	3.45	3.62	3.38	3.49
4398	NASDAQ	PRDO	Tue, Aug 25, 2015	3.43	3.49	3.31	3.40
4397	NASDAQ	PRDO	Mon, Aug 24, 2015	3.47	3.71	3.44	3.53
4396	NASDAQ	PRDO	Fri, Aug 21, 2015	3.50	3.65	3.47	3.63
4395	NASDAQ	PRDO	Thu, Aug 20, 2015	3.61	3.67	3.57	3.61
4394	NASDAQ	PRDO	Wed, Aug 19, 2015	3.73	3.76	3.57	3.61
4393	NASDAQ	PRDO	Tue, Aug 18, 2015	3.94	4.02	3.73	3.75
4392	NASDAQ	PRDO	Mon, Aug 17, 2015	3.95	4.04	3.85	3.96
4391	NASDAQ	PRDO	Fri, Aug 14, 2015	4.03	4.14	3.95	3.99
4390	NASDAQ	PRDO	Thu, Aug 13, 2015	4.28	4.28	3.99	4.02
4389	NASDAQ	PRDO	Wed, Aug 12, 2015	4.12	4.20	3.97	4.15
4388	NASDAQ	PRDO	Tue, Aug 11, 2015	4.12	4.29	4.05	4.12
4387	NASDAQ	PRDO	Mon, Aug 10, 2015	4.25	4.41	4.01	4.13
4386	NASDAQ	PRDO	Fri, Aug 7, 2015	2.95	4.82	2.76	4.20
4385	NASDAQ	PRDO	Thu, Aug 6, 2015	3.24	3.25	3.16	3.25
4384	NASDAQ	PRDO	Wed, Aug 5, 2015	3.24	3.33	3.19	3.24
4383	NASDAQ	PRDO	Tue, Aug 4, 2015	3.13	3.21	3.10	3.20
4382	NASDAQ	PRDO	Mon, Aug 3, 2015	3.18	3.22	3.08	3.13
4381	NASDAQ	PRDO	Fri, Jul 31, 2015	3.16	3.25	3.15	3.18
4380	NASDAQ	PRDO	Thu, Jul 30, 2015	3.24	3.29	3.14	3.16
4379	NASDAQ	PRDO	Wed, Jul 29, 2015	3.21	3.37	3.21	3.27
4378	NASDAQ	PRDO	Tue, Jul 28, 2015	3.19	3.23	3.15	3.19
4377	NASDAQ	PRDO	Mon, Jul 27, 2015	3.29	3.31	3.15	3.20
4376	NASDAQ	PRDO	Fri, Jul 24, 2015	3.34	3.41	3.26	3.33
4375	NASDAQ	PRDO	Thu, Jul 23, 2015	3.55	3.60	3.35	3.36
4374	NASDAQ	PRDO	Wed, Jul 22, 2015	3.50	3.56	3.42	3.54
4373	NASDAQ	PRDO	Tue, Jul 21, 2015	3.39	3.57	3.38	3.52
4372	NASDAQ	PRDO	Mon, Jul 20, 2015	3.41	3.49	3.36	3.41
4371	NASDAQ	PRDO	Fri, Jul 17, 2015	3.48	3.57	3.40	3.43
4370	NASDAQ	PRDO	Thu, Jul 16, 2015	3.31	3.48	3.31	3.46
4369	NASDAQ	PRDO	Wed, Jul 15, 2015	3.36	3.37	3.26	3.31
4368	NASDAQ	PRDO	Tue, Jul 14, 2015	3.33	3.41	3.33	3.35
4367	NASDAQ	PRDO	Mon, Jul 13, 2015	3.32	3.42	3.30	3.34
4366	NASDAQ	PRDO	Fri, Jul 10, 2015	3.26	3.41	3.22	3.31
4365	NASDAQ	PRDO	Thu, Jul 9, 2015	3.24	3.36	3.19	3.24
4364	NASDAQ	PRDO	Wed, Jul 8, 2015	3.30	3.46	3.15	3.21
4363	NASDAQ	PRDO	Tue, Jul 7, 2015	3.43	3.43	3.29	3.36
4362	NASDAQ	PRDO	Mon, Jul 6, 2015	3.39	3.51	3.34	3.43
4361	NASDAQ	PRDO	Thu, Jul 2, 2015	3.35	3.42	3.31	3.41
4360	NASDAQ	PRDO	Wed, Jul 1, 2015	3.30	3.44	3.26	3.37
4359	NASDAQ	PRDO	Tue, Jun 30, 2015	3.48	3.48	3.28	3.30
4358	NASDAQ	PRDO	Mon, Jun 29, 2015	3.62	3.66	3.41	3.43
4357	NASDAQ	PRDO	Fri, Jun 26, 2015	3.73	3.74	3.61	3.65
4356	NASDAQ	PRDO	Thu, Jun 25, 2015	3.69	3.72	3.64	3.71
4355	NASDAQ	PRDO	Wed, Jun 24, 2015	3.74	3.78	3.62	3.65
4354	NASDAQ	PRDO	Tue, Jun 23, 2015	3.72	3.78	3.67	3.74
4353	NASDAQ	PRDO	Mon, Jun 22, 2015	3.56	3.77	3.55	3.71
4352	NASDAQ	PRDO	Fri, Jun 19, 2015	3.71	3.71	3.60	3.60
4351	NASDAQ	PRDO	Thu, Jun 18, 2015	3.92	3.93	3.68	3.68
4350	NASDAQ	PRDO	Wed, Jun 17, 2015	3.98	4.07	3.89	3.91
4349	NASDAQ	PRDO	Tue, Jun 16, 2015	4.02	4.07	3.93	3.98
4348	NASDAQ	PRDO	Mon, Jun 15, 2015	4.00	4.12	3.88	4.03
4347	NASDAQ	PRDO	Fri, Jun 12, 2015	4.07	4.15	3.99	4.01
4346	NASDAQ	PRDO	Thu, Jun 11, 2015	4.01	4.06	3.97	4.04
4345	NASDAQ	PRDO	Wed, Jun 10, 2015	3.89	4.06	3.84	4.01
4344	NASDAQ	PRDO	Tue, Jun 9, 2015	3.71	3.89	3.68	3.86
4343	NASDAQ	PRDO	Mon, Jun 8, 2015	3.82	3.84	3.67	3.72
4342	NASDAQ	PRDO	Fri, Jun 5, 2015	3.85	3.86	3.75	3.84
4341	NASDAQ	PRDO	Thu, Jun 4, 2015	3.81	3.86	3.70	3.81
4340	NASDAQ	PRDO	Wed, Jun 3, 2015	3.87	3.93	3.76	3.83
4339	NASDAQ	PRDO	Tue, Jun 2, 2015	3.95	3.98	3.78	3.85
4338	NASDAQ	PRDO	Mon, Jun 1, 2015	3.81	4.02	3.76	3.97
4337	NASDAQ	PRDO	Fri, May 29, 2015	3.71	3.96	3.71	3.77
4336	NASDAQ	PRDO	Thu, May 28, 2015	3.77	3.81	3.71	3.78
4335	NASDAQ	PRDO	Wed, May 27, 2015	3.73	3.76	3.57	3.76
4334	NASDAQ	PRDO	Tue, May 26, 2015	3.90	3.98	3.72	3.72
4333	NASDAQ	PRDO	Fri, May 22, 2015	4.03	4.27	3.88	3.94
4332	NASDAQ	PRDO	Thu, May 21, 2015	3.78	4.08	3.78	4.05
4331	NASDAQ	PRDO	Wed, May 20, 2015	3.95	3.96	3.76	3.81
4330	NASDAQ	PRDO	Tue, May 19, 2015	4.09	4.19	3.91	3.93
4329	NASDAQ	PRDO	Mon, May 18, 2015	4.11	4.17	4.04	4.11
4328	NASDAQ	PRDO	Fri, May 15, 2015	4.19	4.26	4.01	4.13
4327	NASDAQ	PRDO	Thu, May 14, 2015	4.26	4.26	4.05	4.18
4326	NASDAQ	PRDO	Wed, May 13, 2015	4.60	4.63	4.20	4.24
4325	NASDAQ	PRDO	Tue, May 12, 2015	4.57	4.65	4.49	4.60
4324	NASDAQ	PRDO	Mon, May 11, 2015	4.38	4.68	4.37	4.61
4323	NASDAQ	PRDO	Fri, May 8, 2015	4.90	4.96	4.40	4.40
4322	NASDAQ	PRDO	Thu, May 7, 2015	4.29	4.92	4.11	4.88
4321	NASDAQ	PRDO	Wed, May 6, 2015	4.17	4.19	4.00	4.10
4320	NASDAQ	PRDO	Tue, May 5, 2015	4.19	4.24	4.03	4.17
4319	NASDAQ	PRDO	Mon, May 4, 2015	4.20	4.29	4.18	4.22
4318	NASDAQ	PRDO	Fri, May 1, 2015	4.21	4.33	4.14	4.20
4317	NASDAQ	PRDO	Thu, Apr 30, 2015	4.20	4.27	4.16	4.20
4316	NASDAQ	PRDO	Wed, Apr 29, 2015	4.26	4.29	4.14	4.22
4315	NASDAQ	PRDO	Tue, Apr 28, 2015	4.30	4.40	4.12	4.30
4314	NASDAQ	PRDO	Mon, Apr 27, 2015	4.65	4.72	4.20	4.28
4313	NASDAQ	PRDO	Fri, Apr 24, 2015	4.86	4.91	4.59	4.65
4312	NASDAQ	PRDO	Thu, Apr 23, 2015	4.80	4.95	4.77	4.87
4311	NASDAQ	PRDO	Wed, Apr 22, 2015	4.86	4.89	4.70	4.80
4310	NASDAQ	PRDO	Tue, Apr 21, 2015	4.94	4.99	4.85	4.89
4309	NASDAQ	PRDO	Mon, Apr 20, 2015	4.89	4.98	4.84	4.94
4308	NASDAQ	PRDO	Fri, Apr 17, 2015	4.89	4.94	4.76	4.87
4307	NASDAQ	PRDO	Thu, Apr 16, 2015	4.91	5.01	4.81	4.92
4306	NASDAQ	PRDO	Wed, Apr 15, 2015	4.81	5.01	4.75	4.94
4305	NASDAQ	PRDO	Tue, Apr 14, 2015	4.68	4.88	4.68	4.76
4304	NASDAQ	PRDO	Mon, Apr 13, 2015	4.84	4.85	4.67	4.68
4303	NASDAQ	PRDO	Fri, Apr 10, 2015	4.98	4.98	4.77	4.84
4302	NASDAQ	PRDO	Thu, Apr 9, 2015	4.95	5.02	4.91	4.94
4301	NASDAQ	PRDO	Wed, Apr 8, 2015	4.94	5.02	4.93	4.97
4300	NASDAQ	PRDO	Tue, Apr 7, 2015	5.00	5.04	4.92	4.95
4299	NASDAQ	PRDO	Mon, Apr 6, 2015	4.95	5.11	4.94	4.99
4298	NASDAQ	PRDO	Thu, Apr 2, 2015	5.00	5.13	4.96	5.01
4297	NASDAQ	PRDO	Wed, Apr 1, 2015	5.02	5.19	4.96	4.99
4296	NASDAQ	PRDO	Tue, Mar 31, 2015	5.19	5.24	4.98	5.03
4295	NASDAQ	PRDO	Mon, Mar 30, 2015	5.25	5.30	5.16	5.25
4294	NASDAQ	PRDO	Fri, Mar 27, 2015	5.04	5.28	5.01	5.25
4293	NASDAQ	PRDO	Thu, Mar 26, 2015	5.02	5.13	4.99	5.02
4292	NASDAQ	PRDO	Wed, Mar 25, 2015	5.05	5.13	4.99	5.03
4291	NASDAQ	PRDO	Tue, Mar 24, 2015	5.52	5.52	4.90	5.07
4290	NASDAQ	PRDO	Mon, Mar 23, 2015	5.56	5.68	5.41	5.54
4289	NASDAQ	PRDO	Fri, Mar 20, 2015	5.89	5.96	5.58	5.59
4288	NASDAQ	PRDO	Thu, Mar 19, 2015	5.74	5.93	5.66	5.84
4287	NASDAQ	PRDO	Wed, Mar 18, 2015	5.80	5.85	5.71	5.75
4286	NASDAQ	PRDO	Tue, Mar 17, 2015	5.78	5.93	5.76	5.83
4285	NASDAQ	PRDO	Mon, Mar 16, 2015	5.88	5.98	5.76	5.78
4284	NASDAQ	PRDO	Fri, Mar 13, 2015	5.79	5.85	5.67	5.82
4283	NASDAQ	PRDO	Thu, Mar 12, 2015	5.73	5.85	5.73	5.79
4282	NASDAQ	PRDO	Wed, Mar 11, 2015	5.56	5.75	5.49	5.67
4281	NASDAQ	PRDO	Tue, Mar 10, 2015	5.68	5.73	5.55	5.56
4280	NASDAQ	PRDO	Mon, Mar 9, 2015	5.90	5.95	5.68	5.76
4279	NASDAQ	PRDO	Fri, Mar 6, 2015	5.97	6.02	5.75	5.90
4278	NASDAQ	PRDO	Thu, Mar 5, 2015	5.98	6.19	5.85	6.00
4277	NASDAQ	PRDO	Wed, Mar 4, 2015	5.27	6.33	5.27	6.00
4276	NASDAQ	PRDO	Tue, Mar 3, 2015	5.29	5.34	5.13	5.13
4275	NASDAQ	PRDO	Mon, Mar 2, 2015	5.33	5.36	5.26	5.34
4274	NASDAQ	PRDO	Fri, Feb 27, 2015	5.38	5.44	5.30	5.34
4273	NASDAQ	PRDO	Thu, Feb 26, 2015	5.48	5.49	5.30	5.40
4272	NASDAQ	PRDO	Wed, Feb 25, 2015	5.46	5.48	5.36	5.46
4271	NASDAQ	PRDO	Tue, Feb 24, 2015	5.30	5.48	5.30	5.46
4270	NASDAQ	PRDO	Mon, Feb 23, 2015	5.28	5.30	5.12	5.29
4269	NASDAQ	PRDO	Fri, Feb 20, 2015	5.23	5.27	5.21	5.27
4268	NASDAQ	PRDO	Thu, Feb 19, 2015	5.08	5.23	5.07	5.22
4267	NASDAQ	PRDO	Wed, Feb 18, 2015	5.10	5.12	5.01	5.12
4266	NASDAQ	PRDO	Tue, Feb 17, 2015	5.38	5.40	5.07	5.13
4265	NASDAQ	PRDO	Fri, Feb 13, 2015	6.10	6.10	5.34	5.34
4264	NASDAQ	PRDO	Thu, Feb 12, 2015	6.40	6.46	6.24	6.27
4263	NASDAQ	PRDO	Wed, Feb 11, 2015	6.31	6.44	6.25	6.36
4262	NASDAQ	PRDO	Tue, Feb 10, 2015	6.38	6.43	6.23	6.32
4261	NASDAQ	PRDO	Mon, Feb 9, 2015	6.13	6.46	6.10	6.33
4260	NASDAQ	PRDO	Fri, Feb 6, 2015	6.19	6.24	6.10	6.14
4259	NASDAQ	PRDO	Thu, Feb 5, 2015	5.97	6.27	5.91	6.20
4258	NASDAQ	PRDO	Wed, Feb 4, 2015	5.88	6.18	5.86	5.98
4257	NASDAQ	PRDO	Tue, Feb 3, 2015	5.73	5.95	5.73	5.91
4256	NASDAQ	PRDO	Mon, Feb 2, 2015	5.62	5.94	5.59	5.73
4255	NASDAQ	PRDO	Fri, Jan 30, 2015	5.83	5.90	5.53	5.58
4254	NASDAQ	PRDO	Thu, Jan 29, 2015	5.73	5.93	5.65	5.92
4253	NASDAQ	PRDO	Wed, Jan 28, 2015	5.78	5.80	5.58	5.73
4252	NASDAQ	PRDO	Tue, Jan 27, 2015	5.66	5.78	5.58	5.75
4251	NASDAQ	PRDO	Mon, Jan 26, 2015	5.80	5.82	5.74	5.80
4250	NASDAQ	PRDO	Fri, Jan 23, 2015	5.89	5.89	5.77	5.80
4249	NASDAQ	PRDO	Thu, Jan 22, 2015	5.84	5.91	5.77	5.86
4248	NASDAQ	PRDO	Wed, Jan 21, 2015	5.83	5.86	5.75	5.78
4247	NASDAQ	PRDO	Tue, Jan 20, 2015	5.84	5.90	5.71	5.83
4246	NASDAQ	PRDO	Fri, Jan 16, 2015	5.91	6.01	5.79	5.85
4245	NASDAQ	PRDO	Thu, Jan 15, 2015	6.21	6.28	5.94	5.94
4244	NASDAQ	PRDO	Wed, Jan 14, 2015	6.21	6.29	6.03	6.18
4243	NASDAQ	PRDO	Tue, Jan 13, 2015	6.52	6.57	6.19	6.31
4242	NASDAQ	PRDO	Mon, Jan 12, 2015	6.31	6.55	6.22	6.47
4241	NASDAQ	PRDO	Fri, Jan 9, 2015	6.60	6.63	6.25	6.30
4240	NASDAQ	PRDO	Thu, Jan 8, 2015	6.51	6.83	6.45	6.58
4239	NASDAQ	PRDO	Wed, Jan 7, 2015	6.50	6.59	6.41	6.53
4238	NASDAQ	PRDO	Tue, Jan 6, 2015	6.62	6.75	6.31	6.46
4237	NASDAQ	PRDO	Mon, Jan 5, 2015	6.75	6.90	6.48	6.61
4236	NASDAQ	PRDO	Fri, Jan 2, 2015	6.98	7.10	6.64	6.79
4235	NASDAQ	PRDO	Wed, Dec 31, 2014	6.89	7.10	6.79	6.96
4234	NASDAQ	PRDO	Tue, Dec 30, 2014	6.77	6.98	6.75	6.88
4233	NASDAQ	PRDO	Mon, Dec 29, 2014	6.87	6.95	6.74	6.81
4232	NASDAQ	PRDO	Fri, Dec 26, 2014	6.75	6.89	6.61	6.84
4231	NASDAQ	PRDO	Wed, Dec 24, 2014	6.68	6.84	6.65	6.72
4230	NASDAQ	PRDO	Tue, Dec 23, 2014	6.65	6.95	6.58	6.63
4229	NASDAQ	PRDO	Mon, Dec 22, 2014	6.31	6.59	6.09	6.56
4228	NASDAQ	PRDO	Fri, Dec 19, 2014	6.44	6.46	6.22	6.27
4227	NASDAQ	PRDO	Thu, Dec 18, 2014	6.41	6.51	6.29	6.45
4226	NASDAQ	PRDO	Wed, Dec 17, 2014	5.88	6.33	5.80	6.29
4225	NASDAQ	PRDO	Tue, Dec 16, 2014	5.88	6.03	5.78	5.88
4224	NASDAQ	PRDO	Mon, Dec 15, 2014	6.01	6.12	5.82	5.88
4223	NASDAQ	PRDO	Fri, Dec 12, 2014	5.98	6.14	5.91	5.97
4222	NASDAQ	PRDO	Thu, Dec 11, 2014	6.08	6.28	6.05	6.06
4221	NASDAQ	PRDO	Wed, Dec 10, 2014	6.33	6.44	5.99	6.00
4220	NASDAQ	PRDO	Tue, Dec 9, 2014	6.08	6.48	6.06	6.39
4219	NASDAQ	PRDO	Mon, Dec 8, 2014	6.14	6.32	6.09	6.16
4218	NASDAQ	PRDO	Fri, Dec 5, 2014	6.10	6.47	6.10	6.16
4217	NASDAQ	PRDO	Thu, Dec 4, 2014	6.11	6.23	5.99	6.10
4216	NASDAQ	PRDO	Wed, Dec 3, 2014	5.92	6.15	5.89	6.10
4215	NASDAQ	PRDO	Tue, Dec 2, 2014	5.71	5.96	5.55	5.95
4214	NASDAQ	PRDO	Mon, Dec 1, 2014	5.81	5.88	5.51	5.68
4213	NASDAQ	PRDO	Fri, Nov 28, 2014	5.71	5.88	5.60	5.86
4212	NASDAQ	PRDO	Wed, Nov 26, 2014	5.68	5.82	5.62	5.73
4211	NASDAQ	PRDO	Tue, Nov 25, 2014	5.82	5.89	5.60	5.65
4210	NASDAQ	PRDO	Mon, Nov 24, 2014	5.79	5.98	5.66	5.79
4209	NASDAQ	PRDO	Fri, Nov 21, 2014	5.76	5.82	5.52	5.78
4208	NASDAQ	PRDO	Thu, Nov 20, 2014	5.33	5.66	5.30	5.65
4207	NASDAQ	PRDO	Wed, Nov 19, 2014	5.51	5.57	5.33	5.38
4206	NASDAQ	PRDO	Tue, Nov 18, 2014	5.63	5.69	5.51	5.54
4205	NASDAQ	PRDO	Mon, Nov 17, 2014	5.89	5.98	5.58	5.59
4204	NASDAQ	PRDO	Fri, Nov 14, 2014	5.80	5.99	5.67	5.90
4203	NASDAQ	PRDO	Thu, Nov 13, 2014	5.79	5.94	5.75	5.90
4202	NASDAQ	PRDO	Wed, Nov 12, 2014	5.49	5.85	5.41	5.80
4201	NASDAQ	PRDO	Tue, Nov 11, 2014	5.56	5.56	5.35	5.51
4200	NASDAQ	PRDO	Mon, Nov 10, 2014	5.50	5.60	5.43	5.54
4199	NASDAQ	PRDO	Fri, Nov 7, 2014	5.49	5.59	5.35	5.48
4198	NASDAQ	PRDO	Thu, Nov 6, 2014	6.08	6.39	5.20	5.48
4197	NASDAQ	PRDO	Wed, Nov 5, 2014	5.93	5.99	5.78	5.91
4196	NASDAQ	PRDO	Tue, Nov 4, 2014	5.65	5.89	5.58	5.88
4195	NASDAQ	PRDO	Mon, Nov 3, 2014	5.81	5.94	5.63	5.69
4194	NASDAQ	PRDO	Fri, Oct 31, 2014	6.05	6.19	5.78	5.80
4193	NASDAQ	PRDO	Thu, Oct 30, 2014	5.40	5.91	5.40	5.84
4192	NASDAQ	PRDO	Wed, Oct 29, 2014	5.44	5.53	5.30	5.40
4191	NASDAQ	PRDO	Tue, Oct 28, 2014	5.09	5.39	5.06	5.39
4190	NASDAQ	PRDO	Mon, Oct 27, 2014	5.15	5.15	4.93	5.08
4189	NASDAQ	PRDO	Fri, Oct 24, 2014	5.30	5.30	5.17	5.19
4188	NASDAQ	PRDO	Thu, Oct 23, 2014	5.25	5.34	5.17	5.28
4187	NASDAQ	PRDO	Wed, Oct 22, 2014	5.35	5.39	5.17	5.18
4186	NASDAQ	PRDO	Tue, Oct 21, 2014	5.37	5.42	5.25	5.34
4185	NASDAQ	PRDO	Mon, Oct 20, 2014	5.28	5.37	5.23	5.34
4184	NASDAQ	PRDO	Fri, Oct 17, 2014	5.10	5.57	5.05	5.30
4183	NASDAQ	PRDO	Thu, Oct 16, 2014	4.98	5.12	4.95	5.01
4182	NASDAQ	PRDO	Wed, Oct 15, 2014	4.87	5.11	4.75	5.10
4181	NASDAQ	PRDO	Tue, Oct 14, 2014	5.06	5.06	4.88	4.89
4180	NASDAQ	PRDO	Mon, Oct 13, 2014	5.10	5.14	4.95	4.96
4179	NASDAQ	PRDO	Fri, Oct 10, 2014	5.05	5.21	4.97	5.07
4178	NASDAQ	PRDO	Thu, Oct 9, 2014	5.21	5.25	5.06	5.10
4177	NASDAQ	PRDO	Wed, Oct 8, 2014	5.04	5.25	4.99	5.24
4176	NASDAQ	PRDO	Tue, Oct 7, 2014	5.16	5.16	4.94	5.05
4175	NASDAQ	PRDO	Mon, Oct 6, 2014	5.50	5.53	5.18	5.21
4174	NASDAQ	PRDO	Fri, Oct 3, 2014	5.30	5.51	5.24	5.46
4173	NASDAQ	PRDO	Thu, Oct 2, 2014	5.08	5.29	5.08	5.24
4172	NASDAQ	PRDO	Wed, Oct 1, 2014	5.06	5.15	5.04	5.11
4171	NASDAQ	PRDO	Tue, Sep 30, 2014	5.03	5.15	5.03	5.08
4170	NASDAQ	PRDO	Mon, Sep 29, 2014	5.00	5.11	5.00	5.06
4169	NASDAQ	PRDO	Fri, Sep 26, 2014	5.07	5.17	5.02	5.09
4168	NASDAQ	PRDO	Thu, Sep 25, 2014	5.11	5.15	4.93	5.05
4167	NASDAQ	PRDO	Wed, Sep 24, 2014	5.01	5.19	4.95	5.13
4166	NASDAQ	PRDO	Tue, Sep 23, 2014	5.04	5.08	4.98	4.99
4165	NASDAQ	PRDO	Mon, Sep 22, 2014	5.11	5.15	4.96	5.06
4164	NASDAQ	PRDO	Fri, Sep 19, 2014	5.20	5.24	5.09	5.15
4163	NASDAQ	PRDO	Thu, Sep 18, 2014	5.20	5.35	5.13	5.17
4162	NASDAQ	PRDO	Wed, Sep 17, 2014	5.08	5.27	5.04	5.19
4161	NASDAQ	PRDO	Tue, Sep 16, 2014	5.16	5.26	5.06	5.09
4160	NASDAQ	PRDO	Mon, Sep 15, 2014	5.22	5.35	5.11	5.17
4159	NASDAQ	PRDO	Fri, Sep 12, 2014	5.38	5.38	5.19	5.28
4158	NASDAQ	PRDO	Thu, Sep 11, 2014	5.16	5.36	5.16	5.36
4157	NASDAQ	PRDO	Wed, Sep 10, 2014	5.18	5.22	5.12	5.21
4156	NASDAQ	PRDO	Tue, Sep 9, 2014	5.27	5.34	5.18	5.18
4155	NASDAQ	PRDO	Mon, Sep 8, 2014	5.35	5.46	5.27	5.30
4154	NASDAQ	PRDO	Fri, Sep 5, 2014	5.21	5.30	5.20	5.29
4153	NASDAQ	PRDO	Thu, Sep 4, 2014	5.37	5.53	5.24	5.26
4152	NASDAQ	PRDO	Wed, Sep 3, 2014	5.67	5.72	5.27	5.33
4151	NASDAQ	PRDO	Tue, Sep 2, 2014	5.51	5.66	5.44	5.64
4150	NASDAQ	PRDO	Fri, Aug 29, 2014	5.25	5.50	5.22	5.49
4149	NASDAQ	PRDO	Thu, Aug 28, 2014	5.33	5.35	5.18	5.24
4148	NASDAQ	PRDO	Wed, Aug 27, 2014	5.37	5.41	5.22	5.37
4147	NASDAQ	PRDO	Tue, Aug 26, 2014	5.30	5.43	5.23	5.38
4146	NASDAQ	PRDO	Mon, Aug 25, 2014	5.59	5.64	5.26	5.28
4145	NASDAQ	PRDO	Fri, Aug 22, 2014	5.41	5.56	5.36	5.52
4144	NASDAQ	PRDO	Thu, Aug 21, 2014	5.65	5.65	5.36	5.44
4143	NASDAQ	PRDO	Wed, Aug 20, 2014	5.61	5.72	5.48	5.64
4142	NASDAQ	PRDO	Tue, Aug 19, 2014	5.57	5.68	5.54	5.65
4141	NASDAQ	PRDO	Mon, Aug 18, 2014	5.32	5.70	5.21	5.60
4140	NASDAQ	PRDO	Fri, Aug 15, 2014	5.20	5.32	5.06	5.21
4139	NASDAQ	PRDO	Thu, Aug 14, 2014	5.20	5.37	5.06	5.14
4138	NASDAQ	PRDO	Wed, Aug 13, 2014	5.27	5.35	5.11	5.22
4137	NASDAQ	PRDO	Tue, Aug 12, 2014	5.47	5.52	5.17	5.24
4136	NASDAQ	PRDO	Mon, Aug 11, 2014	5.29	5.52	5.20	5.51
4135	NASDAQ	PRDO	Fri, Aug 8, 2014	5.06	5.26	4.92	5.24
4134	NASDAQ	PRDO	Thu, Aug 7, 2014	5.50	5.81	4.92	5.05
4133	NASDAQ	PRDO	Wed, Aug 6, 2014	5.03	5.36	5.03	5.30
4132	NASDAQ	PRDO	Tue, Aug 5, 2014	4.97	5.14	4.95	5.04
4131	NASDAQ	PRDO	Mon, Aug 4, 2014	4.97	5.07	4.74	5.02
4130	NASDAQ	PRDO	Fri, Aug 1, 2014	5.11	5.21	4.87	4.94
4129	NASDAQ	PRDO	Thu, Jul 31, 2014	4.95	5.16	4.91	5.11
4128	NASDAQ	PRDO	Wed, Jul 30, 2014	5.12	5.16	4.99	5.06
4127	NASDAQ	PRDO	Tue, Jul 29, 2014	4.89	5.13	4.89	5.06
4126	NASDAQ	PRDO	Mon, Jul 28, 2014	5.03	5.05	4.89	4.98
4125	NASDAQ	PRDO	Fri, Jul 25, 2014	5.00	5.07	4.97	5.04
4124	NASDAQ	PRDO	Thu, Jul 24, 2014	5.02	5.11	4.95	5.05
4123	NASDAQ	PRDO	Wed, Jul 23, 2014	5.15	5.15	4.98	5.05
4122	NASDAQ	PRDO	Tue, Jul 22, 2014	5.05	5.17	5.01	5.12
4121	NASDAQ	PRDO	Mon, Jul 21, 2014	4.78	5.04	4.78	4.99
4120	NASDAQ	PRDO	Fri, Jul 18, 2014	4.71	4.89	4.71	4.81
4119	NASDAQ	PRDO	Thu, Jul 17, 2014	4.78	4.94	4.70	4.72
4118	NASDAQ	PRDO	Wed, Jul 16, 2014	4.78	4.93	4.66	4.81
4117	NASDAQ	PRDO	Tue, Jul 15, 2014	4.74	4.86	4.66	4.74
4116	NASDAQ	PRDO	Mon, Jul 14, 2014	4.88	4.91	4.73	4.75
4115	NASDAQ	PRDO	Fri, Jul 11, 2014	4.65	4.82	4.65	4.79
4114	NASDAQ	PRDO	Thu, Jul 10, 2014	4.68	4.75	4.60	4.68
4113	NASDAQ	PRDO	Wed, Jul 9, 2014	4.64	4.91	4.59	4.88
4112	NASDAQ	PRDO	Tue, Jul 8, 2014	4.63	4.65	4.53	4.64
4111	NASDAQ	PRDO	Mon, Jul 7, 2014	4.90	4.95	4.61	4.65
4110	NASDAQ	PRDO	Thu, Jul 3, 2014	4.88	5.01	4.86	4.95
4109	NASDAQ	PRDO	Wed, Jul 2, 2014	4.89	5.01	4.80	4.87
4108	NASDAQ	PRDO	Tue, Jul 1, 2014	4.69	4.98	4.63	4.90
4107	NASDAQ	PRDO	Mon, Jun 30, 2014	4.90	4.94	4.66	4.68
4106	NASDAQ	PRDO	Fri, Jun 27, 2014	4.93	4.97	4.86	4.93
4105	NASDAQ	PRDO	Thu, Jun 26, 2014	4.95	5.03	4.89	4.96
4104	NASDAQ	PRDO	Wed, Jun 25, 2014	4.76	4.98	4.73	4.96
4103	NASDAQ	PRDO	Tue, Jun 24, 2014	4.86	5.02	4.76	4.78
4102	NASDAQ	PRDO	Mon, Jun 23, 2014	4.99	4.99	4.83	4.89
4101	NASDAQ	PRDO	Fri, Jun 20, 2014	4.81	5.03	4.72	5.00
4100	NASDAQ	PRDO	Thu, Jun 19, 2014	5.38	5.40	4.82	4.85
4099	NASDAQ	PRDO	Wed, Jun 18, 2014	5.29	5.40	5.17	5.34
4098	NASDAQ	PRDO	Tue, Jun 17, 2014	5.06	5.19	4.94	5.08
4097	NASDAQ	PRDO	Mon, Jun 16, 2014	4.81	5.13	4.77	5.09
4096	NASDAQ	PRDO	Fri, Jun 13, 2014	4.86	4.99	4.80	4.83
4095	NASDAQ	PRDO	Thu, Jun 12, 2014	4.95	5.01	4.80	4.83
4094	NASDAQ	PRDO	Wed, Jun 11, 2014	5.00	5.22	4.93	4.95
4093	NASDAQ	PRDO	Tue, Jun 10, 2014	4.90	5.18	4.51	5.03
4092	NASDAQ	PRDO	Mon, Jun 9, 2014	4.70	5.08	4.70	4.91
4091	NASDAQ	PRDO	Fri, Jun 6, 2014	4.60	4.75	4.43	4.68
4090	NASDAQ	PRDO	Thu, Jun 5, 2014	4.47	4.58	4.38	4.56
4089	NASDAQ	PRDO	Wed, Jun 4, 2014	4.35	4.48	4.32	4.42
4088	NASDAQ	PRDO	Tue, Jun 3, 2014	4.41	4.53	4.35	4.39
4087	NASDAQ	PRDO	Mon, Jun 2, 2014	4.70	4.75	4.46	4.46
4086	NASDAQ	PRDO	Fri, May 30, 2014	4.70	4.72	4.51	4.67
4085	NASDAQ	PRDO	Thu, May 29, 2014	4.61	4.76	4.52	4.70
4084	NASDAQ	PRDO	Wed, May 28, 2014	4.64	4.75	4.54	4.58
4083	NASDAQ	PRDO	Tue, May 27, 2014	4.77	4.77	4.61	4.66
4082	NASDAQ	PRDO	Fri, May 23, 2014	4.73	5.01	4.64	4.73
4081	NASDAQ	PRDO	Thu, May 22, 2014	4.81	4.96	4.62	4.71
4080	NASDAQ	PRDO	Wed, May 21, 2014	4.81	4.91	4.72	4.83
4079	NASDAQ	PRDO	Tue, May 20, 2014	5.00	5.10	4.71	4.77
4078	NASDAQ	PRDO	Mon, May 19, 2014	4.91	5.07	4.67	5.04
4077	NASDAQ	PRDO	Fri, May 16, 2014	4.83	4.92	4.69	4.91
4076	NASDAQ	PRDO	Thu, May 15, 2014	4.86	4.92	4.69	4.83
4075	NASDAQ	PRDO	Wed, May 14, 2014	5.08	5.09	4.78	4.91
4074	NASDAQ	PRDO	Tue, May 13, 2014	5.01	5.16	4.95	5.11
4073	NASDAQ	PRDO	Mon, May 12, 2014	4.66	5.00	4.61	5.00
4072	NASDAQ	PRDO	Fri, May 9, 2014	4.79	4.98	4.48	4.66
4071	NASDAQ	PRDO	Thu, May 8, 2014	5.45	6.05	4.70	4.94
4070	NASDAQ	PRDO	Wed, May 7, 2014	6.74	6.74	6.46	6.70
4069	NASDAQ	PRDO	Tue, May 6, 2014	6.98	7.05	6.71	6.71
4068	NASDAQ	PRDO	Mon, May 5, 2014	7.19	7.40	6.86	7.03
4067	NASDAQ	PRDO	Fri, May 2, 2014	7.03	7.33	6.99	7.27
4066	NASDAQ	PRDO	Thu, May 1, 2014	7.18	7.23	6.88	7.00
4065	NASDAQ	PRDO	Wed, Apr 30, 2014	6.99	7.23	6.72	7.21
4064	NASDAQ	PRDO	Tue, Apr 29, 2014	6.98	7.17	6.83	7.04
4063	NASDAQ	PRDO	Mon, Apr 28, 2014	7.13	7.71	6.78	6.95
4062	NASDAQ	PRDO	Fri, Apr 25, 2014	7.34	7.46	6.95	7.11
4061	NASDAQ	PRDO	Thu, Apr 24, 2014	7.57	7.67	7.26	7.34
4060	NASDAQ	PRDO	Wed, Apr 23, 2014	7.73	7.85	7.50	7.51
4059	NASDAQ	PRDO	Tue, Apr 22, 2014	7.54	7.84	7.52	7.77
4058	NASDAQ	PRDO	Mon, Apr 21, 2014	7.37	7.60	7.20	7.54
4057	NASDAQ	PRDO	Thu, Apr 17, 2014	7.22	7.52	7.13	7.32
4056	NASDAQ	PRDO	Wed, Apr 16, 2014	7.00	7.24	6.86	7.23
4055	NASDAQ	PRDO	Tue, Apr 15, 2014	6.78	6.98	6.70	6.94
4054	NASDAQ	PRDO	Mon, Apr 14, 2014	6.71	6.80	6.53	6.77
4053	NASDAQ	PRDO	Fri, Apr 11, 2014	6.71	6.86	6.48	6.62
4052	NASDAQ	PRDO	Thu, Apr 10, 2014	7.29	7.32	6.75	6.80
4051	NASDAQ	PRDO	Wed, Apr 9, 2014	7.11	7.30	6.86	7.28
4050	NASDAQ	PRDO	Tue, Apr 8, 2014	6.93	7.24	6.81	7.05
4049	NASDAQ	PRDO	Mon, Apr 7, 2014	7.15	7.31	6.68	6.85
4048	NASDAQ	PRDO	Fri, Apr 4, 2014	7.37	7.64	6.87	7.24
4047	NASDAQ	PRDO	Thu, Apr 3, 2014	7.55	7.62	7.28	7.33
4046	NASDAQ	PRDO	Wed, Apr 2, 2014	7.72	7.72	7.24	7.52
4045	NASDAQ	PRDO	Tue, Apr 1, 2014	7.50	7.82	7.46	7.72
4044	NASDAQ	PRDO	Mon, Mar 31, 2014	7.27	7.51	7.26	7.46
4043	NASDAQ	PRDO	Fri, Mar 28, 2014	7.02	7.83	6.94	7.24
4042	NASDAQ	PRDO	Thu, Mar 27, 2014	7.05	7.34	6.97	7.03
4041	NASDAQ	PRDO	Wed, Mar 26, 2014	7.17	7.39	7.03	7.05
4040	NASDAQ	PRDO	Tue, Mar 25, 2014	7.11	7.24	6.91	7.08
4039	NASDAQ	PRDO	Mon, Mar 24, 2014	7.30	7.42	6.94	7.05
4038	NASDAQ	PRDO	Fri, Mar 21, 2014	7.35	7.48	7.22	7.25
4037	NASDAQ	PRDO	Thu, Mar 20, 2014	6.97	7.30	6.90	7.29
4036	NASDAQ	PRDO	Wed, Mar 19, 2014	7.03	7.12	6.86	7.01
4035	NASDAQ	PRDO	Tue, Mar 18, 2014	6.77	7.10	6.64	7.03
4034	NASDAQ	PRDO	Mon, Mar 17, 2014	6.89	7.00	6.70	6.77
4033	NASDAQ	PRDO	Fri, Mar 14, 2014	6.76	6.99	6.68	6.82
4032	NASDAQ	PRDO	Thu, Mar 13, 2014	7.10	7.13	6.74	6.81
4031	NASDAQ	PRDO	Wed, Mar 12, 2014	7.00	7.10	6.77	7.06
4030	NASDAQ	PRDO	Tue, Mar 11, 2014	7.39	7.72	6.95	7.05
4029	NASDAQ	PRDO	Mon, Mar 10, 2014	7.14	7.27	7.02	7.20
4028	NASDAQ	PRDO	Fri, Mar 7, 2014	7.20	7.33	7.12	7.18
4027	NASDAQ	PRDO	Thu, Mar 6, 2014	7.11	7.32	7.11	7.14
4026	NASDAQ	PRDO	Wed, Mar 5, 2014	7.29	7.37	7.07	7.10
4025	NASDAQ	PRDO	Tue, Mar 4, 2014	7.48	7.65	7.30	7.33
4024	NASDAQ	PRDO	Mon, Mar 3, 2014	7.27	7.72	7.18	7.35
4023	NASDAQ	PRDO	Fri, Feb 28, 2014	7.49	7.84	7.34	7.39
4022	NASDAQ	PRDO	Thu, Feb 27, 2014	7.00	7.93	6.89	7.51
4021	NASDAQ	PRDO	Wed, Feb 26, 2014	6.92	7.06	6.65	6.67
4020	NASDAQ	PRDO	Tue, Feb 25, 2014	6.58	6.95	6.53	6.88
4019	NASDAQ	PRDO	Mon, Feb 24, 2014	6.39	6.69	6.31	6.58
4018	NASDAQ	PRDO	Fri, Feb 21, 2014	5.98	6.50	5.98	6.40
4017	NASDAQ	PRDO	Thu, Feb 20, 2014	6.01	6.13	5.89	5.98
4016	NASDAQ	PRDO	Wed, Feb 19, 2014	6.06	6.20	5.95	5.99
4015	NASDAQ	PRDO	Tue, Feb 18, 2014	5.87	6.14	5.87	6.06
4014	NASDAQ	PRDO	Fri, Feb 14, 2014	5.64	5.88	5.53	5.87
4013	NASDAQ	PRDO	Thu, Feb 13, 2014	5.54	5.74	5.40	5.65
4012	NASDAQ	PRDO	Wed, Feb 12, 2014	5.86	5.89	5.62	5.68
4011	NASDAQ	PRDO	Tue, Feb 11, 2014	5.59	5.92	5.58	5.83
4010	NASDAQ	PRDO	Mon, Feb 10, 2014	5.70	5.99	5.53	5.59
4009	NASDAQ	PRDO	Fri, Feb 7, 2014	5.53	5.75	5.48	5.73
4008	NASDAQ	PRDO	Thu, Feb 6, 2014	5.51	5.66	5.48	5.50
4007	NASDAQ	PRDO	Wed, Feb 5, 2014	5.50	5.68	5.47	5.50
4006	NASDAQ	PRDO	Tue, Feb 4, 2014	5.46	5.69	5.33	5.67
4005	NASDAQ	PRDO	Mon, Feb 3, 2014	5.40	5.51	5.28	5.42
4004	NASDAQ	PRDO	Fri, Jan 31, 2014	5.40	5.73	5.40	5.44
4003	NASDAQ	PRDO	Thu, Jan 30, 2014	5.65	5.71	5.43	5.50
4002	NASDAQ	PRDO	Wed, Jan 29, 2014	5.50	5.83	5.41	5.58
4001	NASDAQ	PRDO	Tue, Jan 28, 2014	5.73	6.01	5.73	5.92
4000	NASDAQ	PRDO	Mon, Jan 27, 2014	5.89	5.98	5.50	5.72
3999	NASDAQ	PRDO	Fri, Jan 24, 2014	6.29	6.33	5.91	6.07
3998	NASDAQ	PRDO	Thu, Jan 23, 2014	6.63	6.65	6.27	6.43
3997	NASDAQ	PRDO	Wed, Jan 22, 2014	6.74	6.78	6.59	6.69
3996	NASDAQ	PRDO	Tue, Jan 21, 2014	6.78	6.88	6.65	6.76
3995	NASDAQ	PRDO	Fri, Jan 17, 2014	6.71	6.90	6.65	6.72
3994	NASDAQ	PRDO	Thu, Jan 16, 2014	6.59	6.76	6.50	6.71
3993	NASDAQ	PRDO	Wed, Jan 15, 2014	6.27	6.74	6.23	6.62
3992	NASDAQ	PRDO	Tue, Jan 14, 2014	5.95	6.36	5.91	6.24
3991	NASDAQ	PRDO	Mon, Jan 13, 2014	6.29	6.38	5.88	5.94
3990	NASDAQ	PRDO	Fri, Jan 10, 2014	6.11	6.22	6.01	6.13
3989	NASDAQ	PRDO	Thu, Jan 9, 2014	6.18	6.41	6.07	6.12
3988	NASDAQ	PRDO	Wed, Jan 8, 2014	5.79	6.29	5.79	6.10
3987	NASDAQ	PRDO	Tue, Jan 7, 2014	5.68	5.85	5.60	5.66
3986	NASDAQ	PRDO	Mon, Jan 6, 2014	5.55	5.69	5.45	5.62
3985	NASDAQ	PRDO	Fri, Jan 3, 2014	5.64	5.65	5.28	5.51
3984	NASDAQ	PRDO	Thu, Jan 2, 2014	5.67	5.69	5.51	5.64
3983	NASDAQ	PRDO	Tue, Dec 31, 2013	5.62	5.75	5.54	5.70
3982	NASDAQ	PRDO	Mon, Dec 30, 2013	5.68	5.76	5.62	5.65
3981	NASDAQ	PRDO	Fri, Dec 27, 2013	5.77	5.83	5.61	5.70
3980	NASDAQ	PRDO	Thu, Dec 26, 2013	5.74	5.89	5.65	5.73
3979	NASDAQ	PRDO	Tue, Dec 24, 2013	5.50	5.75	5.47	5.69
3978	NASDAQ	PRDO	Mon, Dec 23, 2013	5.43	5.53	5.35	5.47
3977	NASDAQ	PRDO	Fri, Dec 20, 2013	5.18	5.45	5.06	5.44
3976	NASDAQ	PRDO	Thu, Dec 19, 2013	5.07	5.30	5.07	5.19
3975	NASDAQ	PRDO	Wed, Dec 18, 2013	5.19	5.24	4.95	5.10
3974	NASDAQ	PRDO	Tue, Dec 17, 2013	5.19	5.33	5.12	5.19
3973	NASDAQ	PRDO	Mon, Dec 16, 2013	4.82	5.21	4.82	5.21
3972	NASDAQ	PRDO	Fri, Dec 13, 2013	4.72	4.87	4.55	4.77
3971	NASDAQ	PRDO	Thu, Dec 12, 2013	4.59	4.75	4.50	4.68
3970	NASDAQ	PRDO	Wed, Dec 11, 2013	4.74	4.96	4.57	4.60
3969	NASDAQ	PRDO	Tue, Dec 10, 2013	4.48	4.85	4.41	4.82
3968	NASDAQ	PRDO	Mon, Dec 9, 2013	4.48	4.53	4.41	4.51
3967	NASDAQ	PRDO	Fri, Dec 6, 2013	4.55	4.60	4.38	4.49
3966	NASDAQ	PRDO	Thu, Dec 5, 2013	4.65	4.76	4.48	4.51
3965	NASDAQ	PRDO	Wed, Dec 4, 2013	4.75	4.79	4.60	4.62
3964	NASDAQ	PRDO	Tue, Dec 3, 2013	4.86	4.98	4.71	4.77
3963	NASDAQ	PRDO	Mon, Dec 2, 2013	5.04	5.05	4.77	4.89
3962	NASDAQ	PRDO	Fri, Nov 29, 2013	5.08	5.11	4.99	5.05
3961	NASDAQ	PRDO	Wed, Nov 27, 2013	5.01	5.07	4.94	5.05
3960	NASDAQ	PRDO	Tue, Nov 26, 2013	4.72	5.05	4.66	5.01
3959	NASDAQ	PRDO	Mon, Nov 25, 2013	4.81	4.99	4.74	4.75
3958	NASDAQ	PRDO	Fri, Nov 22, 2013	4.84	4.88	4.63	4.80
3957	NASDAQ	PRDO	Thu, Nov 21, 2013	4.39	5.02	4.32	4.85
3956	NASDAQ	PRDO	Wed, Nov 20, 2013	4.50	4.53	4.33	4.38
3955	NASDAQ	PRDO	Tue, Nov 19, 2013	4.46	4.53	4.41	4.50
3954	NASDAQ	PRDO	Mon, Nov 18, 2013	4.58	4.66	4.44	4.47
3953	NASDAQ	PRDO	Fri, Nov 15, 2013	4.53	4.63	4.50	4.57
3952	NASDAQ	PRDO	Thu, Nov 14, 2013	4.64	4.68	4.46	4.54
3951	NASDAQ	PRDO	Wed, Nov 13, 2013	4.52	4.69	4.52	4.65
3950	NASDAQ	PRDO	Tue, Nov 12, 2013	4.39	4.58	4.34	4.55
3949	NASDAQ	PRDO	Mon, Nov 11, 2013	4.30	4.41	4.19	4.40
3948	NASDAQ	PRDO	Fri, Nov 8, 2013	4.30	4.40	4.26	4.33
3947	NASDAQ	PRDO	Thu, Nov 7, 2013	4.79	4.84	4.27	4.32
3946	NASDAQ	PRDO	Wed, Nov 6, 2013	5.34	5.43	5.21	5.36
3945	NASDAQ	PRDO	Tue, Nov 5, 2013	5.59	5.62	5.31	5.31
3944	NASDAQ	PRDO	Mon, Nov 4, 2013	5.36	5.68	5.26	5.66
3943	NASDAQ	PRDO	Fri, Nov 1, 2013	5.49	5.50	5.21	5.37
3942	NASDAQ	PRDO	Thu, Oct 31, 2013	5.34	5.58	5.05	5.48
3941	NASDAQ	PRDO	Wed, Oct 30, 2013	5.34	5.48	5.10	5.36
3940	NASDAQ	PRDO	Tue, Oct 29, 2013	5.75	5.88	5.28	5.32
3939	NASDAQ	PRDO	Mon, Oct 28, 2013	5.95	5.96	5.56	5.75
3938	NASDAQ	PRDO	Fri, Oct 25, 2013	6.06	6.50	5.66	5.98
3937	NASDAQ	PRDO	Thu, Oct 24, 2013	3.66	3.83	3.56	3.80
3936	NASDAQ	PRDO	Wed, Oct 23, 2013	3.25	3.71	3.25	3.66
3935	NASDAQ	PRDO	Tue, Oct 22, 2013	3.13	3.21	3.02	3.18
3934	NASDAQ	PRDO	Mon, Oct 21, 2013	3.14	3.15	3.01	3.12
3933	NASDAQ	PRDO	Fri, Oct 18, 2013	3.15	3.17	3.08	3.13
3932	NASDAQ	PRDO	Thu, Oct 17, 2013	2.94	3.12	2.87	3.12
3931	NASDAQ	PRDO	Wed, Oct 16, 2013	2.88	3.04	2.87	2.96
3930	NASDAQ	PRDO	Tue, Oct 15, 2013	2.95	2.97	2.83	2.84
3929	NASDAQ	PRDO	Mon, Oct 14, 2013	2.78	2.94	2.76	2.94
3928	NASDAQ	PRDO	Fri, Oct 11, 2013	2.68	2.82	2.66	2.80
3927	NASDAQ	PRDO	Thu, Oct 10, 2013	2.62	2.75	2.61	2.70
3926	NASDAQ	PRDO	Wed, Oct 9, 2013	2.63	2.67	2.54	2.58
3925	NASDAQ	PRDO	Tue, Oct 8, 2013	2.67	2.70	2.62	2.63
3924	NASDAQ	PRDO	Mon, Oct 7, 2013	2.63	2.72	2.63	2.67
3923	NASDAQ	PRDO	Fri, Oct 4, 2013	2.74	2.78	2.66	2.68
3922	NASDAQ	PRDO	Thu, Oct 3, 2013	2.90	2.90	2.70	2.74
3921	NASDAQ	PRDO	Wed, Oct 2, 2013	2.89	2.93	2.81	2.92
3920	NASDAQ	PRDO	Tue, Oct 1, 2013	2.73	2.92	2.73	2.92
3919	NASDAQ	PRDO	Mon, Sep 30, 2013	2.69	2.79	2.66	2.75
3918	NASDAQ	PRDO	Fri, Sep 27, 2013	2.86	2.86	2.75	2.75
3917	NASDAQ	PRDO	Thu, Sep 26, 2013	2.71	2.90	2.70	2.89
3916	NASDAQ	PRDO	Wed, Sep 25, 2013	2.68	2.73	2.62	2.70
3915	NASDAQ	PRDO	Tue, Sep 24, 2013	2.63	2.75	2.60	2.66
3914	NASDAQ	PRDO	Mon, Sep 23, 2013	2.70	2.72	2.59	2.63
3913	NASDAQ	PRDO	Fri, Sep 20, 2013	2.75	2.80	2.69	2.70
3912	NASDAQ	PRDO	Thu, Sep 19, 2013	2.70	2.77	2.70	2.75
3911	NASDAQ	PRDO	Wed, Sep 18, 2013	2.63	2.78	2.63	2.70
3910	NASDAQ	PRDO	Tue, Sep 17, 2013	2.62	2.67	2.61	2.63
3909	NASDAQ	PRDO	Mon, Sep 16, 2013	2.64	2.70	2.59	2.63
3908	NASDAQ	PRDO	Fri, Sep 13, 2013	2.69	2.70	2.60	2.61
3907	NASDAQ	PRDO	Thu, Sep 12, 2013	2.67	2.70	2.65	2.67
3906	NASDAQ	PRDO	Wed, Sep 11, 2013	2.65	2.70	2.65	2.66
3905	NASDAQ	PRDO	Tue, Sep 10, 2013	2.67	2.71	2.65	2.67
3904	NASDAQ	PRDO	Mon, Sep 9, 2013	2.65	2.71	2.63	2.65
3903	NASDAQ	PRDO	Fri, Sep 6, 2013	2.64	2.67	2.57	2.63
3902	NASDAQ	PRDO	Thu, Sep 5, 2013	2.57	2.68	2.50	2.63
3901	NASDAQ	PRDO	Wed, Sep 4, 2013	2.61	2.67	2.46	2.55
3900	NASDAQ	PRDO	Tue, Sep 3, 2013	2.67	2.72	2.60	2.62
3899	NASDAQ	PRDO	Fri, Aug 30, 2013	2.76	2.77	2.58	2.62
3898	NASDAQ	PRDO	Thu, Aug 29, 2013	2.71	2.80	2.71	2.77
3897	NASDAQ	PRDO	Wed, Aug 28, 2013	2.72	2.76	2.70	2.73
3896	NASDAQ	PRDO	Tue, Aug 27, 2013	2.75	2.81	2.71	2.71
3895	NASDAQ	PRDO	Mon, Aug 26, 2013	2.81	2.82	2.76	2.79
3894	NASDAQ	PRDO	Fri, Aug 23, 2013	2.67	2.88	2.58	2.81
3893	NASDAQ	PRDO	Thu, Aug 22, 2013	2.71	2.77	2.59	2.65
3892	NASDAQ	PRDO	Wed, Aug 21, 2013	2.75	2.77	2.65	2.69
3891	NASDAQ	PRDO	Tue, Aug 20, 2013	2.69	2.79	2.66	2.76
3890	NASDAQ	PRDO	Mon, Aug 19, 2013	2.84	2.86	2.68	2.70
3889	NASDAQ	PRDO	Fri, Aug 16, 2013	2.79	2.84	2.72	2.81
3888	NASDAQ	PRDO	Thu, Aug 15, 2013	2.88	2.94	2.75	2.84
3887	NASDAQ	PRDO	Wed, Aug 14, 2013	2.95	2.97	2.84	2.90
3886	NASDAQ	PRDO	Tue, Aug 13, 2013	3.08	3.12	2.88	2.89
3885	NASDAQ	PRDO	Mon, Aug 12, 2013	3.12	3.15	3.03	3.07
3884	NASDAQ	PRDO	Fri, Aug 9, 2013	3.39	3.54	3.13	3.15
3883	NASDAQ	PRDO	Thu, Aug 8, 2013	3.97	3.97	3.34	3.43
3882	NASDAQ	PRDO	Wed, Aug 7, 2013	3.46	3.64	3.43	3.59
3881	NASDAQ	PRDO	Tue, Aug 6, 2013	3.53	3.59	3.41	3.49
3880	NASDAQ	PRDO	Mon, Aug 5, 2013	3.27	3.63	3.21	3.62
3879	NASDAQ	PRDO	Fri, Aug 2, 2013	3.35	3.36	3.20	3.26
3878	NASDAQ	PRDO	Thu, Aug 1, 2013	3.25	3.42	3.15	3.39
3877	NASDAQ	PRDO	Wed, Jul 31, 2013	3.47	3.48	3.13	3.22
3876	NASDAQ	PRDO	Tue, Jul 30, 2013	3.47	3.55	3.40	3.46
3875	NASDAQ	PRDO	Mon, Jul 29, 2013	3.61	3.61	3.43	3.45
3874	NASDAQ	PRDO	Fri, Jul 26, 2013	3.68	3.69	3.48	3.59
3873	NASDAQ	PRDO	Thu, Jul 25, 2013	3.67	3.81	3.64	3.69
3872	NASDAQ	PRDO	Wed, Jul 24, 2013	3.85	3.92	3.69	3.70
3871	NASDAQ	PRDO	Tue, Jul 23, 2013	3.86	3.95	3.81	3.84
3870	NASDAQ	PRDO	Mon, Jul 22, 2013	3.70	3.84	3.68	3.81
3869	NASDAQ	PRDO	Fri, Jul 19, 2013	3.77	3.78	3.68	3.70
3868	NASDAQ	PRDO	Thu, Jul 18, 2013	3.69	3.88	3.67	3.80
3867	NASDAQ	PRDO	Wed, Jul 17, 2013	3.70	3.82	3.66	3.71
3866	NASDAQ	PRDO	Tue, Jul 16, 2013	3.76	3.79	3.66	3.68
3865	NASDAQ	PRDO	Mon, Jul 15, 2013	3.65	3.76	3.64	3.72
3864	NASDAQ	PRDO	Fri, Jul 12, 2013	3.79	3.83	3.59	3.65
3863	NASDAQ	PRDO	Thu, Jul 11, 2013	3.59	3.75	3.56	3.74
3862	NASDAQ	PRDO	Wed, Jul 10, 2013	3.68	3.76	3.46	3.56
3861	NASDAQ	PRDO	Tue, Jul 9, 2013	3.52	3.66	3.45	3.65
3860	NASDAQ	PRDO	Mon, Jul 8, 2013	3.18	3.48	3.18	3.44
3859	NASDAQ	PRDO	Fri, Jul 5, 2013	3.13	3.20	3.02	3.17
3858	NASDAQ	PRDO	Wed, Jul 3, 2013	3.02	3.10	3.00	3.06
3857	NASDAQ	PRDO	Tue, Jul 2, 2013	2.99	3.10	2.96	3.05
3856	NASDAQ	PRDO	Mon, Jul 1, 2013	2.90	2.99	2.89	2.99
3855	NASDAQ	PRDO	Fri, Jun 28, 2013	2.99	3.03	2.86	2.90
3854	NASDAQ	PRDO	Thu, Jun 27, 2013	2.88	3.04	2.86	3.01
3853	NASDAQ	PRDO	Wed, Jun 26, 2013	2.87	2.95	2.78	2.86
3852	NASDAQ	PRDO	Tue, Jun 25, 2013	2.72	2.91	2.55	2.90
3851	NASDAQ	PRDO	Mon, Jun 24, 2013	2.68	2.73	2.57	2.68
3850	NASDAQ	PRDO	Fri, Jun 21, 2013	2.71	2.75	2.62	2.69
3849	NASDAQ	PRDO	Thu, Jun 20, 2013	2.73	2.79	2.66	2.69
3848	NASDAQ	PRDO	Wed, Jun 19, 2013	2.83	2.86	2.75	2.78
3847	NASDAQ	PRDO	Tue, Jun 18, 2013	2.90	2.92	2.82	2.84
3846	NASDAQ	PRDO	Mon, Jun 17, 2013	2.80	2.97	2.80	2.88
3845	NASDAQ	PRDO	Fri, Jun 14, 2013	2.90	3.02	2.80	2.82
3844	NASDAQ	PRDO	Thu, Jun 13, 2013	2.95	3.03	2.91	2.91
3843	NASDAQ	PRDO	Wed, Jun 12, 2013	3.08	3.19	2.93	2.96
3842	NASDAQ	PRDO	Tue, Jun 11, 2013	3.02	3.15	2.92	3.04
3841	NASDAQ	PRDO	Mon, Jun 10, 2013	2.97	3.19	2.97	3.11
3840	NASDAQ	PRDO	Fri, Jun 7, 2013	3.07	3.15	2.97	3.02
3839	NASDAQ	PRDO	Thu, Jun 6, 2013	2.97	3.10	2.96	3.06
3838	NASDAQ	PRDO	Wed, Jun 5, 2013	3.02	3.19	2.92	3.01
3837	NASDAQ	PRDO	Tue, Jun 4, 2013	3.04	3.11	2.96	3.04
3836	NASDAQ	PRDO	Mon, Jun 3, 2013	2.98	3.05	2.90	3.02
3835	NASDAQ	PRDO	Fri, May 31, 2013	3.01	3.09	2.96	2.98
3834	NASDAQ	PRDO	Thu, May 30, 2013	3.00	3.12	2.98	3.05
3833	NASDAQ	PRDO	Wed, May 29, 2013	3.03	3.06	2.96	2.98
3832	NASDAQ	PRDO	Tue, May 28, 2013	3.13	3.24	2.98	3.06
3831	NASDAQ	PRDO	Fri, May 24, 2013	3.03	3.23	2.95	3.08
3830	NASDAQ	PRDO	Thu, May 23, 2013	2.90	3.04	2.83	3.04
3829	NASDAQ	PRDO	Wed, May 22, 2013	3.05	3.06	2.90	2.94
3828	NASDAQ	PRDO	Tue, May 21, 2013	3.06	3.17	3.03	3.05
3827	NASDAQ	PRDO	Mon, May 20, 2013	3.07	3.13	2.89	3.05
3826	NASDAQ	PRDO	Fri, May 17, 2013	2.81	3.27	2.80	3.08
3825	NASDAQ	PRDO	Thu, May 16, 2013	2.93	3.00	2.73	2.78
3824	NASDAQ	PRDO	Wed, May 15, 2013	2.80	2.97	2.79	2.96
3823	NASDAQ	PRDO	Tue, May 14, 2013	2.61	2.84	2.60	2.82
3822	NASDAQ	PRDO	Mon, May 13, 2013	2.60	2.67	2.60	2.64
3821	NASDAQ	PRDO	Fri, May 10, 2013	2.56	2.65	2.49	2.60
3820	NASDAQ	PRDO	Thu, May 9, 2013	2.52	2.57	2.46	2.54
3819	NASDAQ	PRDO	Wed, May 8, 2013	2.35	2.59	2.32	2.51
3818	NASDAQ	PRDO	Tue, May 7, 2013	2.40	2.45	2.30	2.37
3817	NASDAQ	PRDO	Mon, May 6, 2013	2.36	2.40	2.23	2.37
3816	NASDAQ	PRDO	Fri, May 3, 2013	2.32	2.41	2.21	2.26
3815	NASDAQ	PRDO	Thu, May 2, 2013	2.21	2.28	2.18	2.28
3814	NASDAQ	PRDO	Wed, May 1, 2013	2.19	2.26	2.13	2.20
3813	NASDAQ	PRDO	Tue, Apr 30, 2013	2.26	2.29	2.19	2.19
3812	NASDAQ	PRDO	Mon, Apr 29, 2013	2.25	2.29	2.20	2.29
3811	NASDAQ	PRDO	Fri, Apr 26, 2013	2.25	2.35	2.16	2.19
3810	NASDAQ	PRDO	Thu, Apr 25, 2013	2.16	2.40	2.15	2.27
3809	NASDAQ	PRDO	Wed, Apr 24, 2013	2.16	2.18	2.07	2.10
3808	NASDAQ	PRDO	Tue, Apr 23, 2013	2.08	2.23	2.07	2.22
3807	NASDAQ	PRDO	Mon, Apr 22, 2013	2.16	2.24	2.03	2.05
3806	NASDAQ	PRDO	Fri, Apr 19, 2013	2.12	2.22	2.10	2.17
3805	NASDAQ	PRDO	Thu, Apr 18, 2013	2.09	2.15	2.05	2.12
3804	NASDAQ	PRDO	Wed, Apr 17, 2013	2.07	2.16	2.05	2.09
3803	NASDAQ	PRDO	Tue, Apr 16, 2013	2.11	2.11	2.05	2.07
3802	NASDAQ	PRDO	Mon, Apr 15, 2013	2.18	2.18	2.05	2.08
3801	NASDAQ	PRDO	Fri, Apr 12, 2013	2.18	2.23	2.12	2.16
3800	NASDAQ	PRDO	Thu, Apr 11, 2013	2.20	2.22	2.14	2.15
3799	NASDAQ	PRDO	Wed, Apr 10, 2013	2.14	2.23	2.14	2.21
3798	NASDAQ	PRDO	Tue, Apr 9, 2013	2.24	2.25	2.07	2.14
3797	NASDAQ	PRDO	Mon, Apr 8, 2013	2.28	2.28	2.14	2.20
3796	NASDAQ	PRDO	Fri, Apr 5, 2013	2.26	2.31	2.24	2.28
3795	NASDAQ	PRDO	Thu, Apr 4, 2013	2.26	2.33	2.23	2.33
3794	NASDAQ	PRDO	Wed, Apr 3, 2013	2.23	2.28	2.17	2.27
3793	NASDAQ	PRDO	Tue, Apr 2, 2013	2.30	2.32	2.20	2.24
3792	NASDAQ	PRDO	Mon, Apr 1, 2013	2.38	2.45	2.22	2.29
3791	NASDAQ	PRDO	Thu, Mar 28, 2013	2.52	2.54	2.35	2.37
3790	NASDAQ	PRDO	Wed, Mar 27, 2013	2.36	2.53	2.33	2.51
3789	NASDAQ	PRDO	Tue, Mar 26, 2013	2.56	2.56	2.36	2.41
3788	NASDAQ	PRDO	Mon, Mar 25, 2013	2.61	2.68	2.52	2.53
3787	NASDAQ	PRDO	Fri, Mar 22, 2013	2.62	2.64	2.55	2.60
3786	NASDAQ	PRDO	Thu, Mar 21, 2013	2.75	2.77	2.62	2.62
3785	NASDAQ	PRDO	Wed, Mar 20, 2013	2.76	2.77	2.63	2.69
3784	NASDAQ	PRDO	Tue, Mar 19, 2013	2.72	2.79	2.68	2.74
3783	NASDAQ	PRDO	Mon, Mar 18, 2013	2.69	2.78	2.61	2.70
3782	NASDAQ	PRDO	Fri, Mar 15, 2013	2.59	2.70	2.59	2.70
3781	NASDAQ	PRDO	Thu, Mar 14, 2013	2.59	2.61	2.55	2.59
3780	NASDAQ	PRDO	Wed, Mar 13, 2013	2.60	2.60	2.56	2.56
3779	NASDAQ	PRDO	Tue, Mar 12, 2013	2.65	2.67	2.58	2.59
3778	NASDAQ	PRDO	Mon, Mar 11, 2013	2.65	2.68	2.58	2.65
3777	NASDAQ	PRDO	Fri, Mar 8, 2013	2.72	2.74	2.63	2.65
3776	NASDAQ	PRDO	Thu, Mar 7, 2013	2.56	2.70	2.53	2.65
3775	NASDAQ	PRDO	Wed, Mar 6, 2013	2.69	2.70	2.55	2.56
3774	NASDAQ	PRDO	Tue, Mar 5, 2013	2.75	2.76	2.64	2.65
3773	NASDAQ	PRDO	Mon, Mar 4, 2013	2.95	2.95	2.71	2.72
3772	NASDAQ	PRDO	Fri, Mar 1, 2013	3.24	3.27	2.93	3.00
3771	NASDAQ	PRDO	Thu, Feb 28, 2013	3.58	3.70	3.20	3.22
3770	NASDAQ	PRDO	Wed, Feb 27, 2013	3.60	3.65	3.53	3.57
3769	NASDAQ	PRDO	Tue, Feb 26, 2013	3.74	3.76	3.56	3.63
3768	NASDAQ	PRDO	Mon, Feb 25, 2013	3.98	3.98	3.70	3.71
3767	NASDAQ	PRDO	Fri, Feb 22, 2013	3.95	4.03	3.86	3.94
3766	NASDAQ	PRDO	Thu, Feb 21, 2013	4.07	4.07	3.79	3.93
3765	NASDAQ	PRDO	Wed, Feb 20, 2013	4.20	4.22	4.06	4.07
3764	NASDAQ	PRDO	Tue, Feb 19, 2013	4.08	4.19	4.08	4.18
3763	NASDAQ	PRDO	Fri, Feb 15, 2013	4.14	4.14	4.01	4.08
3762	NASDAQ	PRDO	Thu, Feb 14, 2013	4.09	4.20	4.08	4.10
3761	NASDAQ	PRDO	Wed, Feb 13, 2013	4.11	4.15	4.06	4.12
3760	NASDAQ	PRDO	Tue, Feb 12, 2013	4.01	4.12	3.85	4.10
3759	NASDAQ	PRDO	Mon, Feb 11, 2013	3.75	4.03	3.71	4.00
3758	NASDAQ	PRDO	Fri, Feb 8, 2013	3.79	3.79	3.66	3.76
3757	NASDAQ	PRDO	Thu, Feb 7, 2013	3.51	3.81	3.50	3.80
3756	NASDAQ	PRDO	Wed, Feb 6, 2013	3.35	3.48	3.30	3.44
3755	NASDAQ	PRDO	Tue, Feb 5, 2013	3.31	3.45	3.28	3.38
3754	NASDAQ	PRDO	Mon, Feb 4, 2013	3.29	3.42	3.24	3.30
3753	NASDAQ	PRDO	Fri, Feb 1, 2013	3.45	3.49	3.29	3.34
3752	NASDAQ	PRDO	Thu, Jan 31, 2013	3.24	3.48	3.20	3.46
3751	NASDAQ	PRDO	Wed, Jan 30, 2013	3.31	3.34	3.21	3.24
3750	NASDAQ	PRDO	Tue, Jan 29, 2013	3.53	3.53	3.30	3.33
3749	NASDAQ	PRDO	Mon, Jan 28, 2013	3.51	3.56	3.41	3.52
3748	NASDAQ	PRDO	Fri, Jan 25, 2013	3.44	3.52	3.28	3.49
3747	NASDAQ	PRDO	Thu, Jan 24, 2013	3.31	3.44	3.25	3.43
3746	NASDAQ	PRDO	Wed, Jan 23, 2013	3.35	3.35	3.27	3.34
3745	NASDAQ	PRDO	Tue, Jan 22, 2013	3.29	3.35	3.24	3.34
3744	NASDAQ	PRDO	Fri, Jan 18, 2013	3.37	3.40	3.27	3.30
3743	NASDAQ	PRDO	Thu, Jan 17, 2013	3.41	3.48	3.37	3.38
3742	NASDAQ	PRDO	Wed, Jan 16, 2013	3.49	3.49	3.37	3.40
3741	NASDAQ	PRDO	Tue, Jan 15, 2013	3.38	3.61	3.32	3.51
3740	NASDAQ	PRDO	Mon, Jan 14, 2013	3.49	3.49	3.34	3.42
3739	NASDAQ	PRDO	Fri, Jan 11, 2013	3.38	3.53	3.31	3.47
3738	NASDAQ	PRDO	Thu, Jan 10, 2013	3.33	3.43	3.25	3.37
3737	NASDAQ	PRDO	Wed, Jan 9, 2013	3.38	3.39	3.25	3.26
3736	NASDAQ	PRDO	Tue, Jan 8, 2013	3.51	3.61	3.38	3.39
3735	NASDAQ	PRDO	Mon, Jan 7, 2013	3.72	3.75	3.47	3.51
3734	NASDAQ	PRDO	Fri, Jan 4, 2013	3.50	3.84	3.50	3.76
3733	NASDAQ	PRDO	Thu, Jan 3, 2013	3.48	3.65	3.41	3.50
3732	NASDAQ	PRDO	Wed, Jan 2, 2013	3.67	3.75	3.44	3.49
3731	NASDAQ	PRDO	Mon, Dec 31, 2012	3.30	3.55	3.26	3.51
3730	NASDAQ	PRDO	Fri, Dec 28, 2012	3.23	3.36	3.23	3.31
3729	NASDAQ	PRDO	Thu, Dec 27, 2012	3.28	3.33	3.15	3.25
3728	NASDAQ	PRDO	Wed, Dec 26, 2012	3.27	3.35	3.26	3.30
3727	NASDAQ	PRDO	Mon, Dec 24, 2012	3.32	3.47	3.18	3.27
3726	NASDAQ	PRDO	Fri, Dec 21, 2012	3.28	3.33	3.09	3.33
3725	NASDAQ	PRDO	Thu, Dec 20, 2012	3.35	3.41	3.17	3.33
3724	NASDAQ	PRDO	Wed, Dec 19, 2012	3.60	3.72	3.33	3.38
3723	NASDAQ	PRDO	Tue, Dec 18, 2012	3.33	3.59	3.24	3.52
3722	NASDAQ	PRDO	Mon, Dec 17, 2012	3.44	3.51	3.29	3.33
3721	NASDAQ	PRDO	Fri, Dec 14, 2012	3.31	3.63	3.31	3.43
3720	NASDAQ	PRDO	Thu, Dec 13, 2012	3.41	3.53	3.33	3.37
3719	NASDAQ	PRDO	Wed, Dec 12, 2012	3.22	3.52	3.21	3.41
3718	NASDAQ	PRDO	Tue, Dec 11, 2012	3.04	3.30	3.04	3.21
3717	NASDAQ	PRDO	Mon, Dec 10, 2012	2.96	3.02	2.87	3.02
3716	NASDAQ	PRDO	Fri, Dec 7, 2012	3.04	3.04	2.84	2.96
3715	NASDAQ	PRDO	Thu, Dec 6, 2012	3.07	3.11	2.99	3.03
3714	NASDAQ	PRDO	Wed, Dec 5, 2012	3.10	3.12	2.92	3.07
3713	NASDAQ	PRDO	Tue, Dec 4, 2012	2.77	3.16	2.73	3.10
3712	NASDAQ	PRDO	Mon, Dec 3, 2012	3.01	3.05	2.80	2.82
3711	NASDAQ	PRDO	Fri, Nov 30, 2012	3.06	3.13	2.92	2.99
3710	NASDAQ	PRDO	Thu, Nov 29, 2012	2.91	3.14	2.80	3.05
3709	NASDAQ	PRDO	Wed, Nov 28, 2012	2.88	2.93	2.82	2.84
3708	NASDAQ	PRDO	Tue, Nov 27, 2012	2.91	2.96	2.83	2.89
3707	NASDAQ	PRDO	Mon, Nov 26, 2012	2.74	2.98	2.65	2.91
3706	NASDAQ	PRDO	Fri, Nov 23, 2012	2.67	2.81	2.62	2.74
3705	NASDAQ	PRDO	Wed, Nov 21, 2012	2.73	2.83	2.62	2.67
3704	NASDAQ	PRDO	Tue, Nov 20, 2012	2.82	2.82	2.66	2.72
3703	NASDAQ	PRDO	Mon, Nov 19, 2012	2.83	2.85	2.76	2.82
3702	NASDAQ	PRDO	Fri, Nov 16, 2012	2.69	2.83	2.67	2.80
3701	NASDAQ	PRDO	Thu, Nov 15, 2012	2.56	2.78	2.56	2.72
3700	NASDAQ	PRDO	Wed, Nov 14, 2012	2.63	2.63	2.51	2.57
3699	NASDAQ	PRDO	Tue, Nov 13, 2012	2.86	2.88	2.60	2.62
3698	NASDAQ	PRDO	Mon, Nov 12, 2012	2.93	2.98	2.73	2.84
3697	NASDAQ	PRDO	Fri, Nov 9, 2012	3.40	3.40	2.91	2.93
3696	NASDAQ	PRDO	Thu, Nov 8, 2012	3.56	3.58	3.40	3.41
3695	NASDAQ	PRDO	Wed, Nov 7, 2012	3.83	3.85	3.48	3.58
3694	NASDAQ	PRDO	Tue, Nov 6, 2012	3.69	3.95	3.69	3.92
3693	NASDAQ	PRDO	Mon, Nov 5, 2012	3.67	3.72	3.60	3.67
3692	NASDAQ	PRDO	Fri, Nov 2, 2012	3.65	3.75	3.61	3.66
3691	NASDAQ	PRDO	Thu, Nov 1, 2012	3.41	3.70	3.39	3.68
3690	NASDAQ	PRDO	Wed, Oct 31, 2012	3.31	3.48	3.30	3.40
3689	NASDAQ	PRDO	Fri, Oct 26, 2012	3.35	3.51	3.27	3.31
3688	NASDAQ	PRDO	Thu, Oct 25, 2012	3.41	3.50	3.33	3.34
3687	NASDAQ	PRDO	Wed, Oct 24, 2012	3.48	3.50	3.35	3.39
3686	NASDAQ	PRDO	Tue, Oct 23, 2012	3.63	3.68	3.46	3.47
3685	NASDAQ	PRDO	Mon, Oct 22, 2012	3.57	3.74	3.57	3.68
3684	NASDAQ	PRDO	Fri, Oct 19, 2012	3.74	3.80	3.56	3.60
3683	NASDAQ	PRDO	Thu, Oct 18, 2012	3.70	3.79	3.62	3.78
3682	NASDAQ	PRDO	Wed, Oct 17, 2012	3.71	3.71	3.54	3.66
3681	NASDAQ	PRDO	Tue, Oct 16, 2012	3.92	3.94	3.73	3.74
3680	NASDAQ	PRDO	Mon, Oct 15, 2012	3.90	4.07	3.87	3.88
3679	NASDAQ	PRDO	Fri, Oct 12, 2012	4.22	4.22	3.88	3.90
3678	NASDAQ	PRDO	Thu, Oct 11, 2012	4.10	4.33	4.00	4.20
3677	NASDAQ	PRDO	Wed, Oct 10, 2012	4.10	4.34	4.01	4.07
3676	NASDAQ	PRDO	Tue, Oct 9, 2012	4.05	4.23	3.89	4.09
3675	NASDAQ	PRDO	Mon, Oct 8, 2012	3.71	4.17	3.65	4.05
3674	NASDAQ	PRDO	Fri, Oct 5, 2012	3.76	3.86	3.72	3.73
3673	NASDAQ	PRDO	Thu, Oct 4, 2012	3.67	3.79	3.64	3.75
3672	NASDAQ	PRDO	Wed, Oct 3, 2012	3.80	3.81	3.62	3.64
3671	NASDAQ	PRDO	Tue, Oct 2, 2012	3.86	3.88	3.74	3.80
3670	NASDAQ	PRDO	Mon, Oct 1, 2012	3.76	3.92	3.76	3.85
3669	NASDAQ	PRDO	Fri, Sep 28, 2012	3.87	3.96	3.76	3.76
3668	NASDAQ	PRDO	Thu, Sep 27, 2012	3.84	3.98	3.73	3.90
3667	NASDAQ	PRDO	Wed, Sep 26, 2012	3.70	3.85	3.67	3.79
3666	NASDAQ	PRDO	Tue, Sep 25, 2012	3.99	3.99	3.67	3.69
3665	NASDAQ	PRDO	Mon, Sep 24, 2012	3.90	4.02	3.81	3.97
3664	NASDAQ	PRDO	Fri, Sep 21, 2012	3.99	3.99	3.87	3.97
3663	NASDAQ	PRDO	Thu, Sep 20, 2012	4.01	4.01	3.86	3.93
3662	NASDAQ	PRDO	Wed, Sep 19, 2012	4.11	4.12	4.00	4.04
3661	NASDAQ	PRDO	Tue, Sep 18, 2012	3.81	4.18	3.80	4.09
3660	NASDAQ	PRDO	Mon, Sep 17, 2012	4.01	4.02	3.80	3.82
3659	NASDAQ	PRDO	Fri, Sep 14, 2012	3.85	4.05	3.80	4.04
3658	NASDAQ	PRDO	Thu, Sep 13, 2012	3.78	3.95	3.72	3.82
3657	NASDAQ	PRDO	Wed, Sep 12, 2012	3.85	4.02	3.74	3.79
3656	NASDAQ	PRDO	Tue, Sep 11, 2012	3.50	3.88	3.32	3.85
3655	NASDAQ	PRDO	Mon, Sep 10, 2012	3.65	3.75	3.47	3.51
3654	NASDAQ	PRDO	Fri, Sep 7, 2012	3.62	3.70	3.51	3.64
3653	NASDAQ	PRDO	Thu, Sep 6, 2012	3.37	3.80	3.35	3.61
3652	NASDAQ	PRDO	Wed, Sep 5, 2012	3.30	3.41	3.17	3.34
3651	NASDAQ	PRDO	Tue, Sep 4, 2012	3.19	3.35	3.10	3.31
3650	NASDAQ	PRDO	Fri, Aug 31, 2012	3.18	3.20	3.11	3.15
3649	NASDAQ	PRDO	Thu, Aug 30, 2012	3.23	3.23	3.17	3.19
3648	NASDAQ	PRDO	Wed, Aug 29, 2012	3.32	3.35	3.14	3.22
3647	NASDAQ	PRDO	Tue, Aug 28, 2012	3.41	3.47	3.31	3.33
3646	NASDAQ	PRDO	Mon, Aug 27, 2012	3.46	3.53	3.34	3.37
3645	NASDAQ	PRDO	Fri, Aug 24, 2012	3.45	3.56	3.43	3.47
3644	NASDAQ	PRDO	Thu, Aug 23, 2012	3.47	3.53	3.41	3.48
3643	NASDAQ	PRDO	Wed, Aug 22, 2012	3.61	3.72	3.36	3.49
3642	NASDAQ	PRDO	Tue, Aug 21, 2012	3.61	3.84	3.58	3.74
3641	NASDAQ	PRDO	Mon, Aug 20, 2012	3.49	3.61	3.44	3.57
3640	NASDAQ	PRDO	Fri, Aug 17, 2012	3.45	3.56	3.43	3.52
3639	NASDAQ	PRDO	Thu, Aug 16, 2012	3.41	3.51	3.39	3.45
3638	NASDAQ	PRDO	Wed, Aug 15, 2012	3.35	3.43	3.35	3.42
3637	NASDAQ	PRDO	Tue, Aug 14, 2012	3.52	3.52	3.30	3.33
3636	NASDAQ	PRDO	Mon, Aug 13, 2012	3.56	3.59	3.45	3.47
3635	NASDAQ	PRDO	Fri, Aug 10, 2012	3.68	3.68	3.53	3.55
3634	NASDAQ	PRDO	Thu, Aug 9, 2012	3.68	3.75	3.58	3.66
3633	NASDAQ	PRDO	Wed, Aug 8, 2012	3.42	3.75	3.38	3.70
3632	NASDAQ	PRDO	Tue, Aug 7, 2012	3.45	3.55	3.31	3.43
3631	NASDAQ	PRDO	Mon, Aug 6, 2012	3.10	3.62	3.05	3.46
3630	NASDAQ	PRDO	Fri, Aug 3, 2012	3.22	3.32	3.05	3.08
3629	NASDAQ	PRDO	Thu, Aug 2, 2012	3.59	3.62	3.10	3.13
3628	NASDAQ	PRDO	Wed, Aug 1, 2012	4.02	4.22	3.57	3.69
3627	NASDAQ	PRDO	Tue, Jul 31, 2012	4.60	4.76	4.52	4.71
3626	NASDAQ	PRDO	Mon, Jul 30, 2012	5.00	5.08	4.55	4.60
3625	NASDAQ	PRDO	Fri, Jul 27, 2012	4.77	5.05	4.77	4.99
3624	NASDAQ	PRDO	Thu, Jul 26, 2012	4.96	4.97	4.61	4.75
3623	NASDAQ	PRDO	Wed, Jul 25, 2012	4.85	4.97	4.81	4.89
3622	NASDAQ	PRDO	Tue, Jul 24, 2012	5.10	5.25	4.80	4.80
3621	NASDAQ	PRDO	Mon, Jul 23, 2012	5.40	5.40	5.22	5.33
3620	NASDAQ	PRDO	Fri, Jul 20, 2012	5.58	5.62	5.38	5.54
3619	NASDAQ	PRDO	Thu, Jul 19, 2012	5.51	5.73	5.47	5.66
3618	NASDAQ	PRDO	Wed, Jul 18, 2012	5.26	5.62	5.26	5.52
3617	NASDAQ	PRDO	Tue, Jul 17, 2012	5.36	5.41	5.11	5.27
3616	NASDAQ	PRDO	Mon, Jul 16, 2012	5.52	5.63	5.50	5.53
3615	NASDAQ	PRDO	Fri, Jul 13, 2012	5.77	5.85	5.48	5.57
3614	NASDAQ	PRDO	Thu, Jul 12, 2012	5.85	5.98	5.68	5.77
3613	NASDAQ	PRDO	Wed, Jul 11, 2012	6.05	6.28	5.86	5.93
3612	NASDAQ	PRDO	Tue, Jul 10, 2012	6.37	6.51	6.00	6.03
3611	NASDAQ	PRDO	Mon, Jul 9, 2012	6.83	6.90	6.32	6.36
3610	NASDAQ	PRDO	Fri, Jul 6, 2012	6.46	6.90	6.43	6.87
3609	NASDAQ	PRDO	Thu, Jul 5, 2012	6.58	6.78	6.48	6.51
3608	NASDAQ	PRDO	Tue, Jul 3, 2012	6.65	6.67	6.38	6.58
3607	NASDAQ	PRDO	Mon, Jul 2, 2012	6.93	7.05	6.53	6.67
3606	NASDAQ	PRDO	Fri, Jun 29, 2012	6.61	6.84	6.51	6.69
3605	NASDAQ	PRDO	Thu, Jun 28, 2012	6.11	6.48	5.86	6.44
3604	NASDAQ	PRDO	Wed, Jun 27, 2012	5.99	6.18	5.99	6.16
3603	NASDAQ	PRDO	Tue, Jun 26, 2012	6.08	6.14	5.92	5.98
3602	NASDAQ	PRDO	Mon, Jun 25, 2012	5.87	5.98	5.75	5.95
3601	NASDAQ	PRDO	Fri, Jun 22, 2012	6.08	6.13	5.93	5.96
3600	NASDAQ	PRDO	Thu, Jun 21, 2012	5.96	6.17	5.89	6.02
3599	NASDAQ	PRDO	Wed, Jun 20, 2012	5.81	6.05	5.64	5.95
3598	NASDAQ	PRDO	Tue, Jun 19, 2012	5.43	5.58	5.39	5.50
3597	NASDAQ	PRDO	Mon, Jun 18, 2012	5.58	5.66	5.32	5.39
3596	NASDAQ	PRDO	Fri, Jun 15, 2012	5.54	5.70	5.44	5.62
3595	NASDAQ	PRDO	Thu, Jun 14, 2012	5.73	5.80	5.51	5.55
3594	NASDAQ	PRDO	Wed, Jun 13, 2012	6.15	6.21	5.62	5.71
3593	NASDAQ	PRDO	Tue, Jun 12, 2012	6.30	6.34	6.05	6.21
3592	NASDAQ	PRDO	Mon, Jun 11, 2012	6.80	6.84	6.26	6.29
3591	NASDAQ	PRDO	Fri, Jun 8, 2012	6.77	6.85	6.52	6.71
3590	NASDAQ	PRDO	Thu, Jun 7, 2012	7.07	7.15	6.80	6.81
3589	NASDAQ	PRDO	Wed, Jun 6, 2012	6.60	7.02	6.58	6.97
3588	NASDAQ	PRDO	Tue, Jun 5, 2012	6.32	6.67	6.25	6.53
3587	NASDAQ	PRDO	Mon, Jun 4, 2012	6.55	6.56	6.20	6.34
3586	NASDAQ	PRDO	Fri, Jun 1, 2012	6.38	6.71	6.30	6.54
3585	NASDAQ	PRDO	Thu, May 31, 2012	6.58	6.59	6.27	6.54
3584	NASDAQ	PRDO	Wed, May 30, 2012	7.17	7.21	6.52	6.57
3583	NASDAQ	PRDO	Tue, May 29, 2012	7.10	7.39	7.00	7.18
3582	NASDAQ	PRDO	Fri, May 25, 2012	6.33	7.15	6.27	7.03
3581	NASDAQ	PRDO	Thu, May 24, 2012	6.68	6.75	6.26	6.31
3580	NASDAQ	PRDO	Wed, May 23, 2012	6.29	6.74	6.15	6.66
3579	NASDAQ	PRDO	Tue, May 22, 2012	6.66	6.79	6.30	6.35
3578	NASDAQ	PRDO	Mon, May 21, 2012	6.47	6.67	6.35	6.62
3577	NASDAQ	PRDO	Fri, May 18, 2012	6.55	6.60	6.41	6.45
3576	NASDAQ	PRDO	Thu, May 17, 2012	6.43	6.68	6.30	6.51
3575	NASDAQ	PRDO	Wed, May 16, 2012	6.49	6.59	6.37	6.42
3574	NASDAQ	PRDO	Tue, May 15, 2012	6.42	6.57	6.35	6.46
3573	NASDAQ	PRDO	Mon, May 14, 2012	6.23	6.53	6.15	6.43
3572	NASDAQ	PRDO	Fri, May 11, 2012	6.37	6.74	5.88	6.21
3571	NASDAQ	PRDO	Thu, May 10, 2012	7.05	7.05	6.88	7.00
3570	NASDAQ	PRDO	Wed, May 9, 2012	6.80	7.03	6.68	6.99
3569	NASDAQ	PRDO	Tue, May 8, 2012	6.91	7.01	6.86	6.88
3568	NASDAQ	PRDO	Mon, May 7, 2012	7.01	7.26	6.70	7.00
3567	NASDAQ	PRDO	Fri, May 4, 2012	6.77	6.86	6.40	6.44
3566	NASDAQ	PRDO	Thu, May 3, 2012	6.77	6.86	6.53	6.82
3565	NASDAQ	PRDO	Wed, May 2, 2012	6.94	7.08	6.69	6.75
3564	NASDAQ	PRDO	Tue, May 1, 2012	7.13	7.27	6.93	6.96
3563	NASDAQ	PRDO	Mon, Apr 30, 2012	7.36	7.36	7.03	7.13
3562	NASDAQ	PRDO	Fri, Apr 27, 2012	7.19	7.40	6.92	7.36
3561	NASDAQ	PRDO	Thu, Apr 26, 2012	7.00	7.47	6.99	7.16
3560	NASDAQ	PRDO	Wed, Apr 25, 2012	6.98	7.07	6.88	7.01
3559	NASDAQ	PRDO	Tue, Apr 24, 2012	6.88	6.98	6.78	6.89
3558	NASDAQ	PRDO	Mon, Apr 23, 2012	6.82	6.95	6.74	6.89
3557	NASDAQ	PRDO	Fri, Apr 20, 2012	6.91	7.03	6.83	6.90
3556	NASDAQ	PRDO	Thu, Apr 19, 2012	6.86	7.04	6.82	6.87
3555	NASDAQ	PRDO	Wed, Apr 18, 2012	7.03	7.04	6.81	6.89
3554	NASDAQ	PRDO	Tue, Apr 17, 2012	7.02	7.28	6.98	7.07
3553	NASDAQ	PRDO	Mon, Apr 16, 2012	7.05	7.09	6.85	6.94
3552	NASDAQ	PRDO	Fri, Apr 13, 2012	7.32	7.32	6.95	6.99
3551	NASDAQ	PRDO	Thu, Apr 12, 2012	7.11	7.49	7.10	7.35
3550	NASDAQ	PRDO	Wed, Apr 11, 2012	7.11	7.30	7.01	7.13
3549	NASDAQ	PRDO	Tue, Apr 10, 2012	7.08	7.13	6.80	6.98
3548	NASDAQ	PRDO	Mon, Apr 9, 2012	7.22	7.28	6.84	7.07
3547	NASDAQ	PRDO	Thu, Apr 5, 2012	7.23	7.41	7.23	7.32
3546	NASDAQ	PRDO	Wed, Apr 4, 2012	7.61	7.67	7.22	7.37
3545	NASDAQ	PRDO	Tue, Apr 3, 2012	8.08	8.16	7.67	7.71
3544	NASDAQ	PRDO	Mon, Apr 2, 2012	8.11	8.17	8.00	8.15
3543	NASDAQ	PRDO	Fri, Mar 30, 2012	8.23	8.24	8.01	8.06
3542	NASDAQ	PRDO	Thu, Mar 29, 2012	8.14	8.22	8.00	8.18
3541	NASDAQ	PRDO	Wed, Mar 28, 2012	8.42	8.52	8.11	8.20
3540	NASDAQ	PRDO	Tue, Mar 27, 2012	8.82	8.84	8.38	8.42
3539	NASDAQ	PRDO	Mon, Mar 26, 2012	8.64	9.03	8.61	9.00
3538	NASDAQ	PRDO	Fri, Mar 23, 2012	8.61	8.64	8.38	8.54
3537	NASDAQ	PRDO	Thu, Mar 22, 2012	8.60	8.67	8.44	8.66
3536	NASDAQ	PRDO	Wed, Mar 21, 2012	8.43	8.69	8.26	8.64
3535	NASDAQ	PRDO	Tue, Mar 20, 2012	8.44	8.56	8.33	8.46
3534	NASDAQ	PRDO	Mon, Mar 19, 2012	8.51	8.62	8.41	8.52
3533	NASDAQ	PRDO	Fri, Mar 16, 2012	8.45	8.58	8.34	8.54
3532	NASDAQ	PRDO	Thu, Mar 15, 2012	8.15	8.56	8.08	8.44
3531	NASDAQ	PRDO	Wed, Mar 14, 2012	8.36	8.53	8.04	8.14
3530	NASDAQ	PRDO	Tue, Mar 13, 2012	7.93	8.39	7.75	8.38
3529	NASDAQ	PRDO	Mon, Mar 12, 2012	8.03	8.10	7.82	7.88
3528	NASDAQ	PRDO	Fri, Mar 9, 2012	7.89	8.35	7.87	8.08
3527	NASDAQ	PRDO	Thu, Mar 8, 2012	8.08	8.17	7.86	7.87
3526	NASDAQ	PRDO	Wed, Mar 7, 2012	7.87	8.20	7.87	7.99
3525	NASDAQ	PRDO	Tue, Mar 6, 2012	7.96	8.13	7.85	8.00
3524	NASDAQ	PRDO	Mon, Mar 5, 2012	8.17	8.19	7.96	8.05
3523	NASDAQ	PRDO	Fri, Mar 2, 2012	8.62	8.72	8.19	8.20
3522	NASDAQ	PRDO	Thu, Mar 1, 2012	8.71	8.79	8.60	8.63
3521	NASDAQ	PRDO	Wed, Feb 29, 2012	9.11	9.13	8.56	8.62
3520	NASDAQ	PRDO	Tue, Feb 28, 2012	10.50	10.66	9.03	9.10
3519	NASDAQ	PRDO	Mon, Feb 27, 2012	11.70	11.89	11.14	11.20
3518	NASDAQ	PRDO	Fri, Feb 24, 2012	11.57	12.41	11.41	11.93
3517	NASDAQ	PRDO	Thu, Feb 23, 2012	11.22	11.71	11.20	11.52
3516	NASDAQ	PRDO	Wed, Feb 22, 2012	11.23	11.45	10.94	11.29
3515	NASDAQ	PRDO	Tue, Feb 21, 2012	11.66	11.92	11.19	11.31
3514	NASDAQ	PRDO	Fri, Feb 17, 2012	11.16	11.74	11.07	11.62
3513	NASDAQ	PRDO	Thu, Feb 16, 2012	11.16	11.30	10.89	11.09
3512	NASDAQ	PRDO	Wed, Feb 15, 2012	11.12	11.37	10.96	11.21
3511	NASDAQ	PRDO	Tue, Feb 14, 2012	11.30	11.44	10.86	11.05
3510	NASDAQ	PRDO	Mon, Feb 13, 2012	11.11	11.42	10.83	11.33
3509	NASDAQ	PRDO	Fri, Feb 10, 2012	11.27	11.43	10.97	11.03
3508	NASDAQ	PRDO	Thu, Feb 9, 2012	11.18	11.46	11.16	11.40
3507	NASDAQ	PRDO	Wed, Feb 8, 2012	11.25	11.57	11.21	11.22
3506	NASDAQ	PRDO	Tue, Feb 7, 2012	11.47	11.59	11.27	11.30
3505	NASDAQ	PRDO	Mon, Feb 6, 2012	11.57	11.65	11.26	11.52
3504	NASDAQ	PRDO	Fri, Feb 3, 2012	11.29	11.81	11.24	11.57
3503	NASDAQ	PRDO	Thu, Feb 2, 2012	11.14	11.38	10.96	11.19
3502	NASDAQ	PRDO	Wed, Feb 1, 2012	10.27	11.25	10.25	11.12
3501	NASDAQ	PRDO	Tue, Jan 31, 2012	10.28	10.48	10.00	10.11
3500	NASDAQ	PRDO	Mon, Jan 30, 2012	10.62	10.62	10.15	10.19
3499	NASDAQ	PRDO	Fri, Jan 27, 2012	10.10	10.82	9.91	10.66
3498	NASDAQ	PRDO	Thu, Jan 26, 2012	10.70	10.93	10.24	10.32
3497	NASDAQ	PRDO	Wed, Jan 25, 2012	10.49	10.84	10.33	10.79
3496	NASDAQ	PRDO	Tue, Jan 24, 2012	10.41	10.70	10.38	10.53
3495	NASDAQ	PRDO	Mon, Jan 23, 2012	10.41	10.71	10.19	10.43
3494	NASDAQ	PRDO	Fri, Jan 20, 2012	10.01	10.49	10.01	10.45
3493	NASDAQ	PRDO	Thu, Jan 19, 2012	9.46	10.35	9.46	10.08
3492	NASDAQ	PRDO	Wed, Jan 18, 2012	9.50	9.55	9.17	9.41
3491	NASDAQ	PRDO	Tue, Jan 17, 2012	9.54	9.70	9.44	9.51
3490	NASDAQ	PRDO	Fri, Jan 13, 2012	9.46	9.82	9.31	9.56
3489	NASDAQ	PRDO	Thu, Jan 12, 2012	9.09	9.54	9.09	9.51
3488	NASDAQ	PRDO	Wed, Jan 11, 2012	8.37	9.18	8.30	9.08
3487	NASDAQ	PRDO	Tue, Jan 10, 2012	8.24	8.42	8.19	8.38
3486	NASDAQ	PRDO	Mon, Jan 9, 2012	7.74	8.32	7.22	8.17
3485	NASDAQ	PRDO	Fri, Jan 6, 2012	7.51	8.02	7.10	7.74
3484	NASDAQ	PRDO	Thu, Jan 5, 2012	7.75	8.02	7.74	7.93
3483	NASDAQ	PRDO	Wed, Jan 4, 2012	8.05	8.06	7.75	7.82
3482	NASDAQ	PRDO	Tue, Jan 3, 2012	8.12	8.22	8.02	8.08
3481	NASDAQ	PRDO	Fri, Dec 30, 2011	7.78	8.02	7.78	7.97
3480	NASDAQ	PRDO	Thu, Dec 29, 2011	7.57	7.87	7.56	7.82
3479	NASDAQ	PRDO	Wed, Dec 28, 2011	7.80	7.80	7.41	7.53
3478	NASDAQ	PRDO	Tue, Dec 27, 2011	7.84	7.93	7.71	7.86
3477	NASDAQ	PRDO	Fri, Dec 23, 2011	7.40	7.94	7.19	7.86
3476	NASDAQ	PRDO	Thu, Dec 22, 2011	7.07	7.46	7.01	7.41
3475	NASDAQ	PRDO	Wed, Dec 21, 2011	6.30	6.85	6.23	6.77
3474	NASDAQ	PRDO	Tue, Dec 20, 2011	6.50	6.53	6.22	6.32
3473	NASDAQ	PRDO	Mon, Dec 19, 2011	7.04	7.07	6.35	6.40
3472	NASDAQ	PRDO	Fri, Dec 16, 2011	7.05	7.21	6.90	7.03
3471	NASDAQ	PRDO	Thu, Dec 15, 2011	6.86	7.11	6.60	7.10
3470	NASDAQ	PRDO	Wed, Dec 14, 2011	6.90	7.00	6.70	6.78
3469	NASDAQ	PRDO	Tue, Dec 13, 2011	7.34	7.37	6.86	6.93
3468	NASDAQ	PRDO	Mon, Dec 12, 2011	7.19	7.36	7.02	7.30
3467	NASDAQ	PRDO	Fri, Dec 9, 2011	7.01	7.21	6.97	7.14
3466	NASDAQ	PRDO	Thu, Dec 8, 2011	7.32	7.40	6.98	7.00
3465	NASDAQ	PRDO	Wed, Dec 7, 2011	7.31	7.46	7.21	7.37
3464	NASDAQ	PRDO	Tue, Dec 6, 2011	7.32	7.47	7.21	7.36
3463	NASDAQ	PRDO	Mon, Dec 5, 2011	7.45	7.48	7.25	7.30
3462	NASDAQ	PRDO	Fri, Dec 2, 2011	7.32	7.41	7.18	7.36
3461	NASDAQ	PRDO	Thu, Dec 1, 2011	7.03	7.40	6.95	7.24
3460	NASDAQ	PRDO	Wed, Nov 30, 2011	7.10	7.17	7.00	7.06
3459	NASDAQ	PRDO	Tue, Nov 29, 2011	7.00	7.01	6.84	6.90
3458	NASDAQ	PRDO	Mon, Nov 28, 2011	7.08	7.17	6.90	6.97
3457	NASDAQ	PRDO	Fri, Nov 25, 2011	6.95	7.05	6.85	6.91
3456	NASDAQ	PRDO	Wed, Nov 23, 2011	7.00	7.12	6.90	6.95
3455	NASDAQ	PRDO	Tue, Nov 22, 2011	7.18	7.31	7.01	7.04
3454	NASDAQ	PRDO	Mon, Nov 21, 2011	7.35	7.50	7.18	7.21
3453	NASDAQ	PRDO	Fri, Nov 18, 2011	7.74	7.83	7.54	7.69
3452	NASDAQ	PRDO	Thu, Nov 17, 2011	8.04	8.06	7.67	7.70
3451	NASDAQ	PRDO	Wed, Nov 16, 2011	8.14	8.35	8.03	8.05
3450	NASDAQ	PRDO	Tue, Nov 15, 2011	8.21	8.41	8.10	8.22
3449	NASDAQ	PRDO	Mon, Nov 14, 2011	7.69	8.37	7.61	8.26
3448	NASDAQ	PRDO	Fri, Nov 11, 2011	7.69	7.78	7.48	7.70
3447	NASDAQ	PRDO	Thu, Nov 10, 2011	8.11	8.13	7.57	7.58
3446	NASDAQ	PRDO	Wed, Nov 9, 2011	8.22	8.33	7.89	8.03
3445	NASDAQ	PRDO	Tue, Nov 8, 2011	8.34	8.54	8.08	8.42
3444	NASDAQ	PRDO	Mon, Nov 7, 2011	7.96	8.48	7.95	8.34
3443	NASDAQ	PRDO	Fri, Nov 4, 2011	7.48	8.05	7.45	7.98
3442	NASDAQ	PRDO	Thu, Nov 3, 2011	8.38	8.38	6.92	7.37
3441	NASDAQ	PRDO	Wed, Nov 2, 2011	10.70	10.80	8.16	8.32
3440	NASDAQ	PRDO	Tue, Nov 1, 2011	15.56	16.06	15.12	15.95
3439	NASDAQ	PRDO	Mon, Oct 31, 2011	16.72	16.88	16.12	16.13
3438	NASDAQ	PRDO	Fri, Oct 28, 2011	17.33	17.46	16.87	17.15
3437	NASDAQ	PRDO	Thu, Oct 27, 2011	17.50	17.63	17.05	17.39
3436	NASDAQ	PRDO	Wed, Oct 26, 2011	16.68	17.01	15.92	16.93
3435	NASDAQ	PRDO	Tue, Oct 25, 2011	17.52	17.59	16.68	16.78
3434	NASDAQ	PRDO	Mon, Oct 24, 2011	16.75	17.80	16.73	17.76
3433	NASDAQ	PRDO	Fri, Oct 21, 2011	15.96	16.78	15.89	16.66
3432	NASDAQ	PRDO	Thu, Oct 20, 2011	15.56	15.89	15.05	15.71
3431	NASDAQ	PRDO	Wed, Oct 19, 2011	15.59	16.47	15.32	15.49
3430	NASDAQ	PRDO	Tue, Oct 18, 2011	14.51	15.20	13.95	15.11
3429	NASDAQ	PRDO	Mon, Oct 17, 2011	15.93	16.23	14.51	14.59
3428	NASDAQ	PRDO	Fri, Oct 14, 2011	15.66	16.10	15.50	16.06
3427	NASDAQ	PRDO	Thu, Oct 13, 2011	16.36	16.36	15.18	15.42
3426	NASDAQ	PRDO	Wed, Oct 12, 2011	15.78	16.70	15.72	16.46
3425	NASDAQ	PRDO	Tue, Oct 11, 2011	15.07	15.76	15.00	15.63
3424	NASDAQ	PRDO	Mon, Oct 10, 2011	15.17	15.81	14.91	15.19
3423	NASDAQ	PRDO	Fri, Oct 7, 2011	15.13	15.42	14.50	14.89
3422	NASDAQ	PRDO	Thu, Oct 6, 2011	14.12	15.11	13.89	15.07
3421	NASDAQ	PRDO	Wed, Oct 5, 2011	13.17	14.33	13.17	14.13
3420	NASDAQ	PRDO	Tue, Oct 4, 2011	12.45	13.25	12.24	13.11
3419	NASDAQ	PRDO	Mon, Oct 3, 2011	12.94	13.43	12.32	12.57
3418	NASDAQ	PRDO	Fri, Sep 30, 2011	13.49	13.64	12.98	13.05
3417	NASDAQ	PRDO	Thu, Sep 29, 2011	13.90	14.09	13.13	13.72
3416	NASDAQ	PRDO	Wed, Sep 28, 2011	14.52	14.65	13.55	13.62
3415	NASDAQ	PRDO	Tue, Sep 27, 2011	14.54	15.11	14.33	14.47
3414	NASDAQ	PRDO	Mon, Sep 26, 2011	13.96	14.25	13.33	14.22
3413	NASDAQ	PRDO	Fri, Sep 23, 2011	13.30	14.01	13.28	13.85
3412	NASDAQ	PRDO	Thu, Sep 22, 2011	13.77	13.86	12.95	13.32
3411	NASDAQ	PRDO	Wed, Sep 21, 2011	15.29	15.29	14.20	14.25
3410	NASDAQ	PRDO	Tue, Sep 20, 2011	15.83	16.09	15.14	15.15
3409	NASDAQ	PRDO	Mon, Sep 19, 2011	16.08	16.08	15.45	15.79
3408	NASDAQ	PRDO	Fri, Sep 16, 2011	16.61	16.93	16.29	16.37
3407	NASDAQ	PRDO	Thu, Sep 15, 2011	16.37	16.74	16.28	16.54
3406	NASDAQ	PRDO	Wed, Sep 14, 2011	15.71	16.58	15.69	16.20
3405	NASDAQ	PRDO	Tue, Sep 13, 2011	15.45	15.91	15.44	15.59
3404	NASDAQ	PRDO	Mon, Sep 12, 2011	14.99	15.40	14.83	15.36
3403	NASDAQ	PRDO	Fri, Sep 9, 2011	15.29	15.47	15.02	15.16
3402	NASDAQ	PRDO	Thu, Sep 8, 2011	15.97	16.12	15.23	15.41
3401	NASDAQ	PRDO	Wed, Sep 7, 2011	15.62	16.33	15.51	16.06
3400	NASDAQ	PRDO	Tue, Sep 6, 2011	14.98	15.40	14.82	15.32
3399	NASDAQ	PRDO	Fri, Sep 2, 2011	15.71	15.79	15.11	15.36
3398	NASDAQ	PRDO	Thu, Sep 1, 2011	16.97	16.99	15.99	16.04
3397	NASDAQ	PRDO	Wed, Aug 31, 2011	17.38	17.43	16.82	16.97
3396	NASDAQ	PRDO	Tue, Aug 30, 2011	17.07	17.39	16.75	17.27
3395	NASDAQ	PRDO	Mon, Aug 29, 2011	16.67	17.21	16.46	17.15
3394	NASDAQ	PRDO	Fri, Aug 26, 2011	15.64	16.59	15.41	16.48
3393	NASDAQ	PRDO	Thu, Aug 25, 2011	16.19	16.30	15.58	15.70
3392	NASDAQ	PRDO	Wed, Aug 24, 2011	15.54	16.19	15.45	16.10
3391	NASDAQ	PRDO	Tue, Aug 23, 2011	14.99	15.65	14.78	15.62
3390	NASDAQ	PRDO	Mon, Aug 22, 2011	15.14	15.42	14.80	14.88
3389	NASDAQ	PRDO	Fri, Aug 19, 2011	14.70	15.19	14.70	14.77
3388	NASDAQ	PRDO	Thu, Aug 18, 2011	15.60	15.69	14.54	14.81
3387	NASDAQ	PRDO	Wed, Aug 17, 2011	16.53	16.77	15.83	16.05
3386	NASDAQ	PRDO	Tue, Aug 16, 2011	16.39	16.90	16.21	16.45
3385	NASDAQ	PRDO	Mon, Aug 15, 2011	16.40	16.74	16.24	16.54
3384	NASDAQ	PRDO	Fri, Aug 12, 2011	16.54	16.57	15.97	16.31
3383	NASDAQ	PRDO	Thu, Aug 11, 2011	16.01	16.65	15.66	16.39
3382	NASDAQ	PRDO	Wed, Aug 10, 2011	16.47	16.63	15.75	15.89
3381	NASDAQ	PRDO	Tue, Aug 9, 2011	16.35	16.87	15.74	16.86
3380	NASDAQ	PRDO	Mon, Aug 8, 2011	17.16	17.25	15.95	16.11
3379	NASDAQ	PRDO	Fri, Aug 5, 2011	18.79	18.84	17.29	17.71
3378	NASDAQ	PRDO	Thu, Aug 4, 2011	19.84	21.56	18.48	18.51
3377	NASDAQ	PRDO	Wed, Aug 3, 2011	21.87	22.10	21.24	21.87
3376	NASDAQ	PRDO	Tue, Aug 2, 2011	21.98	22.45	21.90	21.93
3375	NASDAQ	PRDO	Mon, Aug 1, 2011	22.01	22.90	21.76	22.10
3374	NASDAQ	PRDO	Fri, Jul 29, 2011	22.41	22.81	22.00	22.69
3373	NASDAQ	PRDO	Thu, Jul 28, 2011	24.24	24.30	22.51	22.57
3372	NASDAQ	PRDO	Wed, Jul 27, 2011	24.59	24.63	24.01	24.31
3371	NASDAQ	PRDO	Tue, Jul 26, 2011	24.46	25.26	24.10	24.70
3370	NASDAQ	PRDO	Mon, Jul 25, 2011	24.14	24.57	23.99	24.56
3369	NASDAQ	PRDO	Fri, Jul 22, 2011	23.95	24.59	23.82	24.42
3368	NASDAQ	PRDO	Thu, Jul 21, 2011	23.85	24.44	22.95	24.07
3367	NASDAQ	PRDO	Wed, Jul 20, 2011	24.00	24.50	23.64	24.22
3366	NASDAQ	PRDO	Tue, Jul 19, 2011	23.28	24.00	23.24	23.98
3365	NASDAQ	PRDO	Mon, Jul 18, 2011	23.07	23.43	22.90	23.05
3364	NASDAQ	PRDO	Fri, Jul 15, 2011	23.05	23.18	22.88	23.14
3363	NASDAQ	PRDO	Thu, Jul 14, 2011	23.41	23.60	22.68	22.99
3362	NASDAQ	PRDO	Wed, Jul 13, 2011	22.81	23.55	22.81	23.39
3361	NASDAQ	PRDO	Tue, Jul 12, 2011	22.07	22.80	21.83	22.66
3360	NASDAQ	PRDO	Mon, Jul 11, 2011	22.50	22.65	21.99	22.13
3359	NASDAQ	PRDO	Fri, Jul 8, 2011	22.72	22.77	22.13	22.72
3358	NASDAQ	PRDO	Thu, Jul 7, 2011	22.27	23.50	22.27	22.98
3357	NASDAQ	PRDO	Wed, Jul 6, 2011	21.76	22.22	21.54	22.13
3356	NASDAQ	PRDO	Tue, Jul 5, 2011	21.70	21.88	21.63	21.83
3355	NASDAQ	PRDO	Fri, Jul 1, 2011	21.20	21.70	21.17	21.64
3354	NASDAQ	PRDO	Thu, Jun 30, 2011	20.64	21.22	20.47	21.15
3353	NASDAQ	PRDO	Wed, Jun 29, 2011	20.43	20.61	20.26	20.42
3352	NASDAQ	PRDO	Tue, Jun 28, 2011	19.95	20.52	19.93	20.38
3351	NASDAQ	PRDO	Mon, Jun 27, 2011	19.83	20.11	19.65	19.95
3350	NASDAQ	PRDO	Fri, Jun 24, 2011	20.28	20.33	19.62	19.84
3349	NASDAQ	PRDO	Thu, Jun 23, 2011	19.89	20.34	19.56	20.29
3348	NASDAQ	PRDO	Wed, Jun 22, 2011	20.68	20.87	20.01	20.01
3347	NASDAQ	PRDO	Tue, Jun 21, 2011	20.29	20.82	20.26	20.65
3346	NASDAQ	PRDO	Mon, Jun 20, 2011	20.34	20.36	20.02	20.14
3345	NASDAQ	PRDO	Fri, Jun 17, 2011	20.99	21.34	20.33	20.37
3344	NASDAQ	PRDO	Thu, Jun 16, 2011	20.79	21.09	20.66	20.83
3343	NASDAQ	PRDO	Wed, Jun 15, 2011	20.93	21.80	20.73	20.82
3342	NASDAQ	PRDO	Tue, Jun 14, 2011	21.19	21.24	20.94	20.99
3341	NASDAQ	PRDO	Mon, Jun 13, 2011	21.36	21.45	20.84	20.94
3340	NASDAQ	PRDO	Fri, Jun 10, 2011	21.98	22.17	20.99	21.20
3339	NASDAQ	PRDO	Thu, Jun 9, 2011	22.09	22.46	21.99	22.14
3338	NASDAQ	PRDO	Wed, Jun 8, 2011	22.78	23.05	22.03	22.08
3337	NASDAQ	PRDO	Tue, Jun 7, 2011	23.53	23.83	22.92	23.00
3336	NASDAQ	PRDO	Mon, Jun 6, 2011	24.56	24.75	23.29	23.30
3335	NASDAQ	PRDO	Fri, Jun 3, 2011	23.93	24.88	23.65	24.59
3334	NASDAQ	PRDO	Thu, Jun 2, 2011	27.48	27.60	23.42	24.10
3333	NASDAQ	PRDO	Wed, Jun 1, 2011	21.42	22.93	21.19	22.87
3332	NASDAQ	PRDO	Tue, May 31, 2011	22.00	22.20	21.14	21.50
3331	NASDAQ	PRDO	Fri, May 27, 2011	21.70	22.11	21.61	21.85
3330	NASDAQ	PRDO	Thu, May 26, 2011	21.64	21.86	21.61	21.72
3329	NASDAQ	PRDO	Wed, May 25, 2011	22.26	22.32	21.58	21.69
3328	NASDAQ	PRDO	Tue, May 24, 2011	21.15	22.23	21.04	21.96
3327	NASDAQ	PRDO	Mon, May 23, 2011	21.76	21.93	21.08	21.13
3326	NASDAQ	PRDO	Fri, May 20, 2011	22.05	22.21	21.75	22.00
3325	NASDAQ	PRDO	Thu, May 19, 2011	22.17	22.35	21.83	22.13
3324	NASDAQ	PRDO	Wed, May 18, 2011	22.39	22.44	22.01	22.07
3323	NASDAQ	PRDO	Tue, May 17, 2011	22.90	22.95	22.30	22.39
3322	NASDAQ	PRDO	Mon, May 16, 2011	22.98	23.05	22.69	22.87
3321	NASDAQ	PRDO	Fri, May 13, 2011	23.39	23.54	23.05	23.12
3320	NASDAQ	PRDO	Thu, May 12, 2011	22.45	23.43	22.41	23.38
3319	NASDAQ	PRDO	Wed, May 11, 2011	22.84	23.12	22.50	22.53
3318	NASDAQ	PRDO	Tue, May 10, 2011	22.03	22.80	21.72	22.67
3317	NASDAQ	PRDO	Mon, May 9, 2011	21.72	22.13	21.26	21.97
3316	NASDAQ	PRDO	Fri, May 6, 2011	23.31	23.31	21.71	21.76
3315	NASDAQ	PRDO	Thu, May 5, 2011	23.00	23.49	21.75	23.13
3314	NASDAQ	PRDO	Wed, May 4, 2011	22.14	22.15	21.52	21.53
3313	NASDAQ	PRDO	Tue, May 3, 2011	21.91	22.51	21.59	22.16
3312	NASDAQ	PRDO	Mon, May 2, 2011	21.99	22.11	21.45	21.89
3311	NASDAQ	PRDO	Fri, Apr 29, 2011	21.69	22.02	21.50	21.81
3310	NASDAQ	PRDO	Thu, Apr 28, 2011	21.89	21.97	21.37	21.68
3309	NASDAQ	PRDO	Wed, Apr 27, 2011	21.59	22.17	21.59	22.04
3308	NASDAQ	PRDO	Tue, Apr 26, 2011	21.55	21.88	21.49	21.57
3307	NASDAQ	PRDO	Mon, Apr 25, 2011	21.25	21.66	21.25	21.50
3306	NASDAQ	PRDO	Thu, Apr 21, 2011	20.98	21.28	20.69	21.19
3305	NASDAQ	PRDO	Wed, Apr 20, 2011	20.97	21.08	20.50	20.73
3304	NASDAQ	PRDO	Tue, Apr 19, 2011	21.33	21.35	20.68	20.78
3303	NASDAQ	PRDO	Mon, Apr 18, 2011	21.56	21.56	21.18	21.31
3302	NASDAQ	PRDO	Fri, Apr 15, 2011	21.95	21.95	21.54	21.76
3301	NASDAQ	PRDO	Thu, Apr 14, 2011	22.25	22.47	21.68	21.93
3300	NASDAQ	PRDO	Wed, Apr 13, 2011	23.15	23.31	22.25	22.36
3299	NASDAQ	PRDO	Tue, Apr 12, 2011	23.85	24.05	22.96	23.00
3298	NASDAQ	PRDO	Mon, Apr 11, 2011	24.75	24.94	23.77	23.99
3297	NASDAQ	PRDO	Fri, Apr 8, 2011	24.37	24.74	24.34	24.57
3296	NASDAQ	PRDO	Thu, Apr 7, 2011	24.62	24.76	24.26	24.41
3295	NASDAQ	PRDO	Wed, Apr 6, 2011	24.11	24.95	24.04	24.72
3294	NASDAQ	PRDO	Tue, Apr 5, 2011	23.13	24.14	23.13	23.97
3293	NASDAQ	PRDO	Mon, Apr 4, 2011	23.35	23.49	23.04	23.25
3292	NASDAQ	PRDO	Fri, Apr 1, 2011	22.87	23.19	22.86	23.13
3291	NASDAQ	PRDO	Thu, Mar 31, 2011	22.68	22.84	22.57	22.72
3290	NASDAQ	PRDO	Wed, Mar 30, 2011	21.91	22.99	21.62	22.76
3289	NASDAQ	PRDO	Tue, Mar 29, 2011	21.39	21.91	21.03	21.86
3288	NASDAQ	PRDO	Mon, Mar 28, 2011	21.92	22.26	21.86	22.02
3287	NASDAQ	PRDO	Fri, Mar 25, 2011	21.89	21.95	21.75	21.83
3286	NASDAQ	PRDO	Thu, Mar 24, 2011	21.71	21.93	21.50	21.84
3285	NASDAQ	PRDO	Wed, Mar 23, 2011	21.46	21.75	21.31	21.59
3284	NASDAQ	PRDO	Tue, Mar 22, 2011	21.66	21.80	21.48	21.50
3283	NASDAQ	PRDO	Mon, Mar 21, 2011	20.92	21.76	20.92	21.57
3282	NASDAQ	PRDO	Fri, Mar 18, 2011	20.94	21.02	20.50	20.77
3281	NASDAQ	PRDO	Thu, Mar 17, 2011	21.29	21.29	20.61	20.69
3280	NASDAQ	PRDO	Wed, Mar 16, 2011	21.35	21.42	20.86	20.97
3279	NASDAQ	PRDO	Tue, Mar 15, 2011	21.25	21.55	21.04	21.41
3278	NASDAQ	PRDO	Mon, Mar 14, 2011	21.74	22.42	21.59	21.80
3277	NASDAQ	PRDO	Fri, Mar 11, 2011	21.77	22.39	21.74	21.96
3276	NASDAQ	PRDO	Thu, Mar 10, 2011	22.05	22.16	21.84	21.88
3275	NASDAQ	PRDO	Wed, Mar 9, 2011	22.39	22.56	22.09	22.29
3274	NASDAQ	PRDO	Tue, Mar 8, 2011	22.05	22.68	21.80	22.43
3273	NASDAQ	PRDO	Mon, Mar 7, 2011	23.07	23.32	22.14	22.30
3272	NASDAQ	PRDO	Fri, Mar 4, 2011	24.08	24.17	22.82	23.03
3271	NASDAQ	PRDO	Thu, Mar 3, 2011	23.71	24.31	23.50	24.15
3270	NASDAQ	PRDO	Wed, Mar 2, 2011	23.29	23.68	23.01	23.43
3269	NASDAQ	PRDO	Tue, Mar 1, 2011	24.15	24.39	23.27	23.37
3268	NASDAQ	PRDO	Mon, Feb 28, 2011	24.00	24.17	23.65	24.11
3267	NASDAQ	PRDO	Fri, Feb 25, 2011	22.93	23.97	22.88	23.88
3266	NASDAQ	PRDO	Thu, Feb 24, 2011	22.76	23.10	22.32	22.99
3265	NASDAQ	PRDO	Wed, Feb 23, 2011	23.80	23.80	22.70	22.77
3264	NASDAQ	PRDO	Tue, Feb 22, 2011	24.08	24.41	23.50	23.80
3263	NASDAQ	PRDO	Fri, Feb 18, 2011	23.21	24.80	22.91	24.37
3262	NASDAQ	PRDO	Thu, Feb 17, 2011	23.13	23.43	22.89	23.33
3261	NASDAQ	PRDO	Wed, Feb 16, 2011	23.35	23.90	22.95	23.15
3260	NASDAQ	PRDO	Tue, Feb 15, 2011	23.41	23.45	23.08	23.25
3259	NASDAQ	PRDO	Mon, Feb 14, 2011	23.86	23.86	23.14	23.52
3258	NASDAQ	PRDO	Fri, Feb 11, 2011	23.28	23.89	22.88	23.84
3257	NASDAQ	PRDO	Thu, Feb 10, 2011	22.61	23.55	22.40	23.39
3256	NASDAQ	PRDO	Wed, Feb 9, 2011	22.83	22.89	22.60	22.68
3255	NASDAQ	PRDO	Tue, Feb 8, 2011	22.84	23.01	22.67	22.95
3254	NASDAQ	PRDO	Mon, Feb 7, 2011	22.71	23.17	22.67	22.90
3253	NASDAQ	PRDO	Fri, Feb 4, 2011	23.08	23.08	22.36	22.61
3252	NASDAQ	PRDO	Thu, Feb 3, 2011	22.89	23.07	22.61	23.06
3251	NASDAQ	PRDO	Wed, Feb 2, 2011	23.04	23.37	22.84	22.87
3250	NASDAQ	PRDO	Tue, Feb 1, 2011	22.57	23.25	22.38	23.15
3249	NASDAQ	PRDO	Mon, Jan 31, 2011	22.58	22.89	22.39	22.44
3248	NASDAQ	PRDO	Fri, Jan 28, 2011	23.40	23.42	22.44	22.62
3247	NASDAQ	PRDO	Thu, Jan 27, 2011	23.22	23.45	23.02	23.34
3246	NASDAQ	PRDO	Wed, Jan 26, 2011	22.45	23.48	22.45	23.22
3245	NASDAQ	PRDO	Tue, Jan 25, 2011	22.17	22.47	21.94	22.13
3244	NASDAQ	PRDO	Mon, Jan 24, 2011	21.72	22.55	21.71	22.17
3243	NASDAQ	PRDO	Fri, Jan 21, 2011	21.82	22.10	21.70	21.91
3242	NASDAQ	PRDO	Thu, Jan 20, 2011	21.33	21.97	21.17	21.73
3241	NASDAQ	PRDO	Wed, Jan 19, 2011	21.86	21.95	20.87	21.32
3240	NASDAQ	PRDO	Tue, Jan 18, 2011	21.64	21.84	21.13	21.77
3239	NASDAQ	PRDO	Fri, Jan 14, 2011	21.46	21.85	21.21	21.57
3238	NASDAQ	PRDO	Thu, Jan 13, 2011	20.70	21.43	20.60	21.23
3237	NASDAQ	PRDO	Wed, Jan 12, 2011	20.18	20.71	20.06	20.70
3236	NASDAQ	PRDO	Tue, Jan 11, 2011	19.05	20.07	18.69	20.01
3235	NASDAQ	PRDO	Mon, Jan 10, 2011	19.10	19.36	18.40	18.61
3234	NASDAQ	PRDO	Fri, Jan 7, 2011	21.33	21.46	20.94	21.13
3233	NASDAQ	PRDO	Thu, Jan 6, 2011	21.10	21.46	20.96	21.34
3232	NASDAQ	PRDO	Wed, Jan 5, 2011	20.52	21.10	20.13	21.04
3231	NASDAQ	PRDO	Tue, Jan 4, 2011	21.09	21.26	20.38	20.61
3230	NASDAQ	PRDO	Mon, Jan 3, 2011	20.96	21.39	20.61	21.07
3229	NASDAQ	PRDO	Fri, Dec 31, 2010	21.06	21.06	20.29	20.73
3228	NASDAQ	PRDO	Thu, Dec 30, 2010	20.70	21.12	20.46	21.01
3227	NASDAQ	PRDO	Wed, Dec 29, 2010	20.10	20.86	20.10	20.67
3226	NASDAQ	PRDO	Tue, Dec 28, 2010	20.34	20.37	19.90	20.10
3225	NASDAQ	PRDO	Mon, Dec 27, 2010	20.42	20.42	20.06	20.28
3224	NASDAQ	PRDO	Thu, Dec 23, 2010	20.29	20.54	20.10	20.49
3223	NASDAQ	PRDO	Wed, Dec 22, 2010	19.84	20.35	19.84	20.26
3222	NASDAQ	PRDO	Tue, Dec 21, 2010	19.66	20.08	19.59	19.86
3221	NASDAQ	PRDO	Mon, Dec 20, 2010	19.70	19.82	19.39	19.56
3220	NASDAQ	PRDO	Fri, Dec 17, 2010	19.44	19.66	19.37	19.53
3219	NASDAQ	PRDO	Thu, Dec 16, 2010	19.65	19.76	19.34	19.40
3218	NASDAQ	PRDO	Wed, Dec 15, 2010	19.82	20.07	19.50	19.65
3217	NASDAQ	PRDO	Tue, Dec 14, 2010	20.13	20.41	19.73	19.82
3216	NASDAQ	PRDO	Mon, Dec 13, 2010	20.09	20.53	20.06	20.13
3215	NASDAQ	PRDO	Fri, Dec 10, 2010	19.36	20.44	19.30	19.92
3214	NASDAQ	PRDO	Thu, Dec 9, 2010	19.79	19.88	19.15	19.18
3213	NASDAQ	PRDO	Wed, Dec 8, 2010	18.81	20.05	18.81	19.72
3212	NASDAQ	PRDO	Tue, Dec 7, 2010	18.86	18.99	18.50	18.60
3211	NASDAQ	PRDO	Mon, Dec 6, 2010	18.81	19.00	18.60	18.67
3210	NASDAQ	PRDO	Fri, Dec 3, 2010	18.26	18.91	18.26	18.76
3209	NASDAQ	PRDO	Thu, Dec 2, 2010	18.17	18.55	18.09	18.31
3208	NASDAQ	PRDO	Wed, Dec 1, 2010	18.00	18.22	17.90	18.04
3207	NASDAQ	PRDO	Tue, Nov 30, 2010	18.40	18.40	17.72	17.79
3206	NASDAQ	PRDO	Mon, Nov 29, 2010	18.61	18.75	18.27	18.59
3205	NASDAQ	PRDO	Fri, Nov 26, 2010	18.57	18.92	18.54	18.72
3204	NASDAQ	PRDO	Wed, Nov 24, 2010	18.91	19.12	18.65	18.72
3203	NASDAQ	PRDO	Tue, Nov 23, 2010	19.25	19.25	18.54	18.75
3202	NASDAQ	PRDO	Mon, Nov 22, 2010	19.51	19.57	19.07	19.40
3201	NASDAQ	PRDO	Fri, Nov 19, 2010	19.15	19.70	18.81	19.46
3200	NASDAQ	PRDO	Thu, Nov 18, 2010	19.03	19.32	18.83	19.13
3199	NASDAQ	PRDO	Wed, Nov 17, 2010	18.50	19.04	18.41	18.86
3198	NASDAQ	PRDO	Tue, Nov 16, 2010	18.20	18.62	18.08	18.41
3197	NASDAQ	PRDO	Mon, Nov 15, 2010	17.72	18.46	17.70	18.24
3196	NASDAQ	PRDO	Fri, Nov 12, 2010	17.78	17.95	17.21	17.56
3195	NASDAQ	PRDO	Thu, Nov 11, 2010	17.81	17.93	17.55	17.88
3194	NASDAQ	PRDO	Wed, Nov 10, 2010	17.80	18.10	17.71	17.99
3193	NASDAQ	PRDO	Tue, Nov 9, 2010	17.83	18.20	17.80	17.86
3192	NASDAQ	PRDO	Mon, Nov 8, 2010	17.41	17.83	17.37	17.76
3191	NASDAQ	PRDO	Fri, Nov 5, 2010	17.18	17.59	17.13	17.49
3190	NASDAQ	PRDO	Thu, Nov 4, 2010	17.46	17.46	16.62	17.20
3189	NASDAQ	PRDO	Wed, Nov 3, 2010	18.59	19.25	17.30	17.54
3188	NASDAQ	PRDO	Tue, Nov 2, 2010	18.12	18.51	17.80	18.40
3187	NASDAQ	PRDO	Mon, Nov 1, 2010	17.72	18.24	17.67	17.95
3186	NASDAQ	PRDO	Fri, Oct 29, 2010	17.39	17.67	17.31	17.54
3185	NASDAQ	PRDO	Thu, Oct 28, 2010	17.49	17.64	17.23	17.40
3184	NASDAQ	PRDO	Wed, Oct 27, 2010	17.18	17.81	17.18	17.32
3183	NASDAQ	PRDO	Tue, Oct 26, 2010	17.34	17.84	17.06	17.34
3182	NASDAQ	PRDO	Mon, Oct 25, 2010	17.57	17.90	17.55	17.64
3181	NASDAQ	PRDO	Fri, Oct 22, 2010	17.33	17.85	17.33	17.52
3180	NASDAQ	PRDO	Thu, Oct 21, 2010	17.14	17.47	16.96	17.33
3179	NASDAQ	PRDO	Wed, Oct 20, 2010	16.97	17.35	16.95	17.15
3178	NASDAQ	PRDO	Tue, Oct 19, 2010	17.26	17.54	16.78	16.90
3177	NASDAQ	PRDO	Mon, Oct 18, 2010	17.00	17.45	17.00	17.43
3176	NASDAQ	PRDO	Fri, Oct 15, 2010	17.19	17.24	16.63	16.96
3175	NASDAQ	PRDO	Thu, Oct 14, 2010	17.70	17.80	16.36	17.17
3174	NASDAQ	PRDO	Wed, Oct 13, 2010	20.56	20.72	20.17	20.18
3173	NASDAQ	PRDO	Tue, Oct 12, 2010	20.71	20.89	20.35	20.49
3172	NASDAQ	PRDO	Mon, Oct 11, 2010	20.28	21.06	20.16	20.81
3171	NASDAQ	PRDO	Fri, Oct 8, 2010	20.13	20.42	20.07	20.28
3170	NASDAQ	PRDO	Thu, Oct 7, 2010	20.61	20.88	19.99	20.06
3169	NASDAQ	PRDO	Wed, Oct 6, 2010	20.94	21.05	20.37	20.56
3168	NASDAQ	PRDO	Tue, Oct 5, 2010	21.09	21.15	20.88	21.01
3167	NASDAQ	PRDO	Mon, Oct 4, 2010	21.67	21.67	20.83	20.86
3166	NASDAQ	PRDO	Fri, Oct 1, 2010	21.71	22.07	21.14	21.67
3165	NASDAQ	PRDO	Thu, Sep 30, 2010	20.61	21.73	20.30	21.47
3164	NASDAQ	PRDO	Wed, Sep 29, 2010	20.47	20.95	20.37	20.41
3163	NASDAQ	PRDO	Tue, Sep 28, 2010	20.41	20.64	20.14	20.49
3162	NASDAQ	PRDO	Mon, Sep 27, 2010	20.44	20.60	20.00	20.41
3161	NASDAQ	PRDO	Fri, Sep 24, 2010	22.05	22.99	20.27	20.38
3160	NASDAQ	PRDO	Thu, Sep 23, 2010	20.60	23.00	20.06	21.76
3159	NASDAQ	PRDO	Wed, Sep 22, 2010	20.96	21.56	20.16	20.74
3158	NASDAQ	PRDO	Tue, Sep 21, 2010	22.27	22.28	21.06	21.08
3157	NASDAQ	PRDO	Mon, Sep 20, 2010	20.67	22.32	20.67	22.29
3156	NASDAQ	PRDO	Fri, Sep 17, 2010	19.65	20.88	19.64	20.65
3155	NASDAQ	PRDO	Thu, Sep 16, 2010	18.62	19.93	18.62	19.54
3154	NASDAQ	PRDO	Wed, Sep 15, 2010	18.57	18.86	18.16	18.71
3153	NASDAQ	PRDO	Tue, Sep 14, 2010	19.00	19.09	18.58	18.59
3152	NASDAQ	PRDO	Mon, Sep 13, 2010	18.75	19.21	18.37	19.06
3151	NASDAQ	PRDO	Fri, Sep 10, 2010	18.46	18.96	18.33	18.49
3150	NASDAQ	PRDO	Thu, Sep 9, 2010	18.10	18.60	17.79	18.46
3149	NASDAQ	PRDO	Wed, Sep 8, 2010	17.85	18.29	17.73	17.86
3148	NASDAQ	PRDO	Tue, Sep 7, 2010	17.96	18.24	17.72	17.89
3147	NASDAQ	PRDO	Fri, Sep 3, 2010	18.45	18.68	18.26	18.66
3146	NASDAQ	PRDO	Thu, Sep 2, 2010	17.77	18.30	17.71	18.25
3145	NASDAQ	PRDO	Wed, Sep 1, 2010	17.71	18.00	17.50	17.81
3144	NASDAQ	PRDO	Tue, Aug 31, 2010	17.90	17.93	17.26	17.53
3143	NASDAQ	PRDO	Mon, Aug 30, 2010	18.05	18.59	17.88	17.88
3142	NASDAQ	PRDO	Fri, Aug 27, 2010	18.05	18.20	17.67	18.03
3141	NASDAQ	PRDO	Thu, Aug 26, 2010	18.03	18.32	17.71	17.94
3140	NASDAQ	PRDO	Wed, Aug 25, 2010	17.05	18.09	17.00	17.98
3139	NASDAQ	PRDO	Tue, Aug 24, 2010	17.40	18.09	17.08	17.12
3138	NASDAQ	PRDO	Mon, Aug 23, 2010	17.64	17.78	17.36	17.47
3137	NASDAQ	PRDO	Fri, Aug 20, 2010	18.13	18.29	17.35	17.54
3136	NASDAQ	PRDO	Thu, Aug 19, 2010	18.24	18.43	17.77	18.29
3135	NASDAQ	PRDO	Wed, Aug 18, 2010	17.77	18.68	17.67	18.29
3134	NASDAQ	PRDO	Tue, Aug 17, 2010	17.78	18.31	17.39	17.88
3133	NASDAQ	PRDO	Mon, Aug 16, 2010	18.28	18.53	17.53	17.64
3132	NASDAQ	PRDO	Fri, Aug 13, 2010	19.51	19.77	18.43	18.79
3131	NASDAQ	PRDO	Thu, Aug 12, 2010	19.54	20.04	19.40	19.59
3130	NASDAQ	PRDO	Wed, Aug 11, 2010	19.66	20.28	19.38	19.84
3129	NASDAQ	PRDO	Tue, Aug 10, 2010	20.16	20.32	19.58	20.02
3128	NASDAQ	PRDO	Mon, Aug 9, 2010	20.76	20.86	20.28	20.48
3127	NASDAQ	PRDO	Fri, Aug 6, 2010	21.43	21.43	20.20	20.55
3126	NASDAQ	PRDO	Thu, Aug 5, 2010	23.89	24.05	21.87	21.90
3125	NASDAQ	PRDO	Wed, Aug 4, 2010	23.74	24.25	23.34	23.96
3124	NASDAQ	PRDO	Tue, Aug 3, 2010	24.70	24.73	23.64	23.72
3123	NASDAQ	PRDO	Mon, Aug 2, 2010	24.83	25.04	24.60	24.85
3122	NASDAQ	PRDO	Fri, Jul 30, 2010	24.28	24.67	24.18	24.43
3121	NASDAQ	PRDO	Thu, Jul 29, 2010	25.13	25.39	24.15	24.60
3120	NASDAQ	PRDO	Wed, Jul 28, 2010	24.93	25.29	24.90	25.02
3119	NASDAQ	PRDO	Tue, Jul 27, 2010	25.78	27.00	24.96	25.04
3118	NASDAQ	PRDO	Mon, Jul 26, 2010	25.38	25.98	24.93	25.64
3117	NASDAQ	PRDO	Fri, Jul 23, 2010	25.51	27.67	24.66	25.41
3116	NASDAQ	PRDO	Thu, Jul 22, 2010	24.88	24.99	23.85	24.54
3115	NASDAQ	PRDO	Wed, Jul 21, 2010	26.12	26.19	24.52	24.65
3114	NASDAQ	PRDO	Tue, Jul 20, 2010	26.13	26.14	25.40	26.04
3113	NASDAQ	PRDO	Mon, Jul 19, 2010	25.41	27.93	25.36	26.43
3112	NASDAQ	PRDO	Fri, Jul 16, 2010	25.27	25.80	24.79	24.94
3111	NASDAQ	PRDO	Thu, Jul 15, 2010	25.15	25.48	24.51	25.42
3110	NASDAQ	PRDO	Wed, Jul 14, 2010	24.67	25.11	24.49	25.10
3109	NASDAQ	PRDO	Tue, Jul 13, 2010	24.37	24.79	24.22	24.79
3108	NASDAQ	PRDO	Mon, Jul 12, 2010	24.75	25.14	23.99	24.16
3107	NASDAQ	PRDO	Fri, Jul 9, 2010	24.16	25.22	23.90	24.90
3106	NASDAQ	PRDO	Thu, Jul 8, 2010	23.31	24.11	23.29	24.11
3105	NASDAQ	PRDO	Wed, Jul 7, 2010	22.60	23.19	22.03	23.14
3104	NASDAQ	PRDO	Tue, Jul 6, 2010	21.90	22.78	21.89	22.19
3103	NASDAQ	PRDO	Fri, Jul 2, 2010	22.15	22.32	21.42	21.59
3102	NASDAQ	PRDO	Thu, Jul 1, 2010	22.97	23.31	21.99	22.11
3101	NASDAQ	PRDO	Wed, Jun 30, 2010	23.51	24.06	22.63	23.02
3100	NASDAQ	PRDO	Tue, Jun 29, 2010	24.39	24.39	23.35	23.48
3099	NASDAQ	PRDO	Mon, Jun 28, 2010	24.43	25.21	23.92	24.75
3098	NASDAQ	PRDO	Fri, Jun 25, 2010	25.73	26.02	24.49	24.71
3097	NASDAQ	PRDO	Thu, Jun 24, 2010	26.32	26.99	25.43	25.72
3096	NASDAQ	PRDO	Wed, Jun 23, 2010	25.91	26.89	25.88	26.39
3095	NASDAQ	PRDO	Tue, Jun 22, 2010	26.85	26.88	25.88	25.89
3094	NASDAQ	PRDO	Mon, Jun 21, 2010	27.36	27.46	26.47	26.74
3093	NASDAQ	PRDO	Fri, Jun 18, 2010	27.21	27.38	26.97	27.00
3092	NASDAQ	PRDO	Thu, Jun 17, 2010	27.03	27.41	26.51	27.20
3091	NASDAQ	PRDO	Wed, Jun 16, 2010	26.91	27.25	26.13	26.99
3090	NASDAQ	PRDO	Tue, Jun 15, 2010	26.25	27.25	26.25	26.91
3089	NASDAQ	PRDO	Mon, Jun 14, 2010	27.05	27.11	25.99	26.20
3088	NASDAQ	PRDO	Fri, Jun 11, 2010	25.89	27.72	25.79	26.98
3087	NASDAQ	PRDO	Thu, Jun 10, 2010	26.33	26.63	25.37	26.17
3086	NASDAQ	PRDO	Wed, Jun 9, 2010	26.36	26.53	25.83	25.97
3085	NASDAQ	PRDO	Tue, Jun 8, 2010	25.63	27.14	25.20	26.26
3084	NASDAQ	PRDO	Mon, Jun 7, 2010	26.78	27.57	25.51	25.52
3083	NASDAQ	PRDO	Fri, Jun 4, 2010	27.12	27.61	26.69	26.81
3082	NASDAQ	PRDO	Thu, Jun 3, 2010	28.08	28.57	27.46	27.60
3081	NASDAQ	PRDO	Wed, Jun 2, 2010	27.60	28.27	27.08	28.27
3080	NASDAQ	PRDO	Tue, Jun 1, 2010	28.00	28.55	27.46	27.47
3079	NASDAQ	PRDO	Fri, May 28, 2010	27.95	28.35	27.71	28.00
3078	NASDAQ	PRDO	Thu, May 27, 2010	27.64	28.20	26.98	28.03
3077	NASDAQ	PRDO	Wed, May 26, 2010	28.94	29.16	27.04	27.61
3076	NASDAQ	PRDO	Tue, May 25, 2010	29.46	29.47	28.19	28.93
3075	NASDAQ	PRDO	Mon, May 24, 2010	29.00	29.66	28.94	29.30
3074	NASDAQ	PRDO	Fri, May 21, 2010	28.79	29.45	28.46	29.08
3073	NASDAQ	PRDO	Thu, May 20, 2010	30.30	31.09	29.16	29.21
3072	NASDAQ	PRDO	Wed, May 19, 2010	29.74	30.80	29.29	30.67
3071	NASDAQ	PRDO	Tue, May 18, 2010	31.90	32.11	29.66	29.74
3070	NASDAQ	PRDO	Mon, May 17, 2010	29.44	32.21	27.86	31.66
3069	NASDAQ	PRDO	Fri, May 14, 2010	30.22	30.57	28.66	28.83
3068	NASDAQ	PRDO	Thu, May 13, 2010	31.11	31.36	30.40	30.60
3067	NASDAQ	PRDO	Wed, May 12, 2010	30.13	31.39	30.13	31.34
3066	NASDAQ	PRDO	Tue, May 11, 2010	29.76	30.16	29.28	30.11
3065	NASDAQ	PRDO	Mon, May 10, 2010	29.73	30.01	29.22	30.00
3064	NASDAQ	PRDO	Fri, May 7, 2010	29.98	30.00	28.72	28.93
3063	NASDAQ	PRDO	Thu, May 6, 2010	29.97	32.06	28.65	29.86
3062	NASDAQ	PRDO	Wed, May 5, 2010	28.98	30.27	28.98	30.00
3061	NASDAQ	PRDO	Tue, May 4, 2010	29.63	29.63	28.86	29.47
3060	NASDAQ	PRDO	Mon, May 3, 2010	29.35	30.28	28.77	30.24
3059	NASDAQ	PRDO	Fri, Apr 30, 2010	29.49	30.41	29.25	29.27
3058	NASDAQ	PRDO	Thu, Apr 29, 2010	33.43	33.43	29.19	29.28
3057	NASDAQ	PRDO	Wed, Apr 28, 2010	33.10	33.68	32.82	33.41
3056	NASDAQ	PRDO	Tue, Apr 27, 2010	33.37	33.87	32.93	32.93
3055	NASDAQ	PRDO	Mon, Apr 26, 2010	33.89	34.00	32.98	33.47
3054	NASDAQ	PRDO	Fri, Apr 23, 2010	34.79	34.80	33.93	34.10
3053	NASDAQ	PRDO	Thu, Apr 22, 2010	35.42	35.88	34.36	34.88
3052	NASDAQ	PRDO	Wed, Apr 21, 2010	34.23	35.80	34.00	35.70
3051	NASDAQ	PRDO	Tue, Apr 20, 2010	33.31	34.05	32.73	33.79
3050	NASDAQ	PRDO	Mon, Apr 19, 2010	32.97	33.23	32.45	33.17
3049	NASDAQ	PRDO	Fri, Apr 16, 2010	33.03	33.42	32.62	32.97
3048	NASDAQ	PRDO	Thu, Apr 15, 2010	33.24	33.33	32.88	33.02
3047	NASDAQ	PRDO	Wed, Apr 14, 2010	33.78	33.78	33.02	33.18
3046	NASDAQ	PRDO	Tue, Apr 13, 2010	31.51	33.62	31.51	33.55
3045	NASDAQ	PRDO	Mon, Apr 12, 2010	31.70	31.88	30.93	31.44
3044	NASDAQ	PRDO	Fri, Apr 9, 2010	31.24	31.75	30.81	31.70
3043	NASDAQ	PRDO	Thu, Apr 8, 2010	31.87	32.03	31.06	31.14
3042	NASDAQ	PRDO	Wed, Apr 7, 2010	32.12	32.25	31.84	31.93
3041	NASDAQ	PRDO	Tue, Apr 6, 2010	32.00	32.38	31.86	32.29
3040	NASDAQ	PRDO	Mon, Apr 5, 2010	31.58	32.13	31.58	32.09
3039	NASDAQ	PRDO	Thu, Apr 1, 2010	31.80	32.07	31.22	31.43
3038	NASDAQ	PRDO	Wed, Mar 31, 2010	32.10	32.30	31.57	31.64
3037	NASDAQ	PRDO	Tue, Mar 30, 2010	32.34	32.68	31.89	32.23
3036	NASDAQ	PRDO	Mon, Mar 29, 2010	32.51	32.69	32.10	32.43
3035	NASDAQ	PRDO	Fri, Mar 26, 2010	32.59	32.80	31.87	31.96
3034	NASDAQ	PRDO	Thu, Mar 25, 2010	32.60	33.04	32.31	32.60
3033	NASDAQ	PRDO	Wed, Mar 24, 2010	32.81	33.07	32.41	32.48
3032	NASDAQ	PRDO	Tue, Mar 23, 2010	32.53	32.95	32.45	32.92
3031	NASDAQ	PRDO	Mon, Mar 22, 2010	31.70	32.80	31.51	32.60
3030	NASDAQ	PRDO	Fri, Mar 19, 2010	32.58	32.61	31.63	31.66
3029	NASDAQ	PRDO	Thu, Mar 18, 2010	32.04	32.69	31.89	32.46
3028	NASDAQ	PRDO	Wed, Mar 17, 2010	31.39	31.99	31.03	31.98
3027	NASDAQ	PRDO	Tue, Mar 16, 2010	31.01	31.48	30.85	31.38
3026	NASDAQ	PRDO	Mon, Mar 15, 2010	30.67	31.02	30.35	30.89
3025	NASDAQ	PRDO	Fri, Mar 12, 2010	29.94	30.79	29.65	30.69
3024	NASDAQ	PRDO	Thu, Mar 11, 2010	29.87	30.05	29.70	29.95
3023	NASDAQ	PRDO	Wed, Mar 10, 2010	30.28	30.46	29.71	29.92
3022	NASDAQ	PRDO	Tue, Mar 9, 2010	30.05	30.31	29.57	30.09
3021	NASDAQ	PRDO	Mon, Mar 8, 2010	30.98	31.35	30.20	30.28
3020	NASDAQ	PRDO	Fri, Mar 5, 2010	29.77	31.35	29.58	30.43
3019	NASDAQ	PRDO	Thu, Mar 4, 2010	28.96	29.59	28.78	29.44
3018	NASDAQ	PRDO	Wed, Mar 3, 2010	28.56	29.18	28.25	29.02
3017	NASDAQ	PRDO	Tue, Mar 2, 2010	29.30	29.44	28.28	28.41
3016	NASDAQ	PRDO	Mon, Mar 1, 2010	27.99	29.41	27.84	29.10
3015	NASDAQ	PRDO	Fri, Feb 26, 2010	27.61	27.99	27.27	27.82
3014	NASDAQ	PRDO	Thu, Feb 25, 2010	27.36	27.69	26.96	27.47
3013	NASDAQ	PRDO	Wed, Feb 24, 2010	26.44	27.51	26.29	27.46
3012	NASDAQ	PRDO	Tue, Feb 23, 2010	26.92	27.36	26.20	26.28
3011	NASDAQ	PRDO	Mon, Feb 22, 2010	26.33	27.04	26.08	26.91
3010	NASDAQ	PRDO	Fri, Feb 19, 2010	25.68	26.48	25.24	26.33
3009	NASDAQ	PRDO	Thu, Feb 18, 2010	23.46	26.18	23.33	26.00
3008	NASDAQ	PRDO	Wed, Feb 17, 2010	22.04	22.89	22.00	22.87
3007	NASDAQ	PRDO	Tue, Feb 16, 2010	21.79	21.99	21.47	21.92
3006	NASDAQ	PRDO	Fri, Feb 12, 2010	21.00	21.55	20.85	21.55
3005	NASDAQ	PRDO	Thu, Feb 11, 2010	20.72	21.18	20.60	21.16
3004	NASDAQ	PRDO	Wed, Feb 10, 2010	20.88	21.07	20.76	21.03
3003	NASDAQ	PRDO	Tue, Feb 9, 2010	20.93	21.19	20.60	20.96
3002	NASDAQ	PRDO	Mon, Feb 8, 2010	20.98	21.08	20.62	20.79
3001	NASDAQ	PRDO	Fri, Feb 5, 2010	21.00	21.09	20.57	20.90
3000	NASDAQ	PRDO	Thu, Feb 4, 2010	21.21	21.27	20.97	20.99
2999	NASDAQ	PRDO	Wed, Feb 3, 2010	21.60	21.74	21.32	21.36
2998	NASDAQ	PRDO	Tue, Feb 2, 2010	21.80	22.07	21.46	21.57
2997	NASDAQ	PRDO	Mon, Feb 1, 2010	21.93	21.93	21.51	21.60
2996	NASDAQ	PRDO	Fri, Jan 29, 2010	22.92	23.01	21.74	21.75
2995	NASDAQ	PRDO	Thu, Jan 28, 2010	23.59	23.60	22.80	22.85
2994	NASDAQ	PRDO	Wed, Jan 27, 2010	23.00	23.77	22.99	23.63
2993	NASDAQ	PRDO	Tue, Jan 26, 2010	23.03	23.17	22.57	23.00
2992	NASDAQ	PRDO	Mon, Jan 25, 2010	23.55	23.55	22.83	23.11
2991	NASDAQ	PRDO	Fri, Jan 22, 2010	23.47	23.86	23.25	23.42
2990	NASDAQ	PRDO	Thu, Jan 21, 2010	23.33	24.16	23.12	23.51
2989	NASDAQ	PRDO	Wed, Jan 20, 2010	23.34	23.51	22.66	23.09
2988	NASDAQ	PRDO	Tue, Jan 19, 2010	23.45	23.52	22.50	23.51
2987	NASDAQ	PRDO	Fri, Jan 15, 2010	24.03	24.43	23.67	23.69
2986	NASDAQ	PRDO	Thu, Jan 14, 2010	23.96	24.37	23.75	24.24
2985	NASDAQ	PRDO	Wed, Jan 13, 2010	24.25	24.25	23.80	24.04
2984	NASDAQ	PRDO	Tue, Jan 12, 2010	24.36	24.55	23.93	24.18
2983	NASDAQ	PRDO	Mon, Jan 11, 2010	24.60	25.39	24.32	24.49
2982	NASDAQ	PRDO	Fri, Jan 8, 2010	23.63	24.76	18.21	24.51
2981	NASDAQ	PRDO	Thu, Jan 7, 2010	23.74	24.31	23.62	24.14
2980	NASDAQ	PRDO	Wed, Jan 6, 2010	23.30	24.00	23.27	23.72
2979	NASDAQ	PRDO	Tue, Jan 5, 2010	23.24	23.47	23.09	23.30
2978	NASDAQ	PRDO	Mon, Jan 4, 2010	23.39	23.53	22.88	23.31
2977	NASDAQ	PRDO	Thu, Dec 31, 2009	23.34	23.56	23.18	23.31
2976	NASDAQ	PRDO	Wed, Dec 30, 2009	23.27	23.47	23.13	23.28
2975	NASDAQ	PRDO	Tue, Dec 29, 2009	23.69	23.72	23.29	23.36
2974	NASDAQ	PRDO	Mon, Dec 28, 2009	23.25	23.71	23.20	23.61
2973	NASDAQ	PRDO	Thu, Dec 24, 2009	23.07	23.38	22.99	23.21
2972	NASDAQ	PRDO	Wed, Dec 23, 2009	22.63	23.43	22.63	23.12
2971	NASDAQ	PRDO	Tue, Dec 22, 2009	22.44	22.66	22.07	22.47
2970	NASDAQ	PRDO	Mon, Dec 21, 2009	22.30	22.79	21.94	22.37
2969	NASDAQ	PRDO	Fri, Dec 18, 2009	22.07	22.88	20.31	22.30
2968	NASDAQ	PRDO	Thu, Dec 17, 2009	28.21	28.40	22.48	22.88
2967	NASDAQ	PRDO	Wed, Dec 16, 2009	28.05	28.87	28.05	28.35
2966	NASDAQ	PRDO	Tue, Dec 15, 2009	27.88	28.29	27.75	28.03
2965	NASDAQ	PRDO	Mon, Dec 14, 2009	27.33	28.09	27.22	28.01
2964	NASDAQ	PRDO	Fri, Dec 11, 2009	27.10	27.61	26.99	27.22
2963	NASDAQ	PRDO	Thu, Dec 10, 2009	27.09	27.38	26.83	26.98
2962	NASDAQ	PRDO	Wed, Dec 9, 2009	26.16	27.25	25.97	26.82
2961	NASDAQ	PRDO	Tue, Dec 8, 2009	25.64	26.46	25.61	26.25
2960	NASDAQ	PRDO	Mon, Dec 7, 2009	25.41	25.83	25.41	25.81
2959	NASDAQ	PRDO	Fri, Dec 4, 2009	25.48	25.84	25.31	25.51
2958	NASDAQ	PRDO	Thu, Dec 3, 2009	26.31	26.32	25.18	25.25
2957	NASDAQ	PRDO	Wed, Dec 2, 2009	25.59	25.95	25.23	25.70
2956	NASDAQ	PRDO	Tue, Dec 1, 2009	26.14	26.14	25.29	25.63
2955	NASDAQ	PRDO	Mon, Nov 30, 2009	25.24	26.21	25.04	26.03
2954	NASDAQ	PRDO	Fri, Nov 27, 2009	24.95	25.51	24.90	25.24
2953	NASDAQ	PRDO	Wed, Nov 25, 2009	25.50	25.62	25.10	25.46
2952	NASDAQ	PRDO	Tue, Nov 24, 2009	25.00	25.54	24.80	25.44
2951	NASDAQ	PRDO	Mon, Nov 23, 2009	25.05	25.16	24.83	25.08
2950	NASDAQ	PRDO	Fri, Nov 20, 2009	24.97	25.03	24.76	24.85
2949	NASDAQ	PRDO	Thu, Nov 19, 2009	25.76	25.76	24.98	25.10
2948	NASDAQ	PRDO	Wed, Nov 18, 2009	25.88	25.90	25.56	25.77
2947	NASDAQ	PRDO	Tue, Nov 17, 2009	25.64	25.98	25.41	25.92
2946	NASDAQ	PRDO	Mon, Nov 16, 2009	24.84	25.81	24.82	25.81
2945	NASDAQ	PRDO	Fri, Nov 13, 2009	25.08	25.16	24.62	24.69
2944	NASDAQ	PRDO	Thu, Nov 12, 2009	23.56	24.33	23.56	24.15
2943	NASDAQ	PRDO	Wed, Nov 11, 2009	23.24	23.70	23.06	23.63
2942	NASDAQ	PRDO	Tue, Nov 10, 2009	22.69	23.41	22.51	23.11
2941	NASDAQ	PRDO	Mon, Nov 9, 2009	22.78	23.04	22.15	22.62
2940	NASDAQ	PRDO	Fri, Nov 6, 2009	22.66	23.03	22.61	22.75
2939	NASDAQ	PRDO	Thu, Nov 5, 2009	21.85	23.07	21.84	22.82
2938	NASDAQ	PRDO	Wed, Nov 4, 2009	21.25	21.25	20.68	20.78
2937	NASDAQ	PRDO	Tue, Nov 3, 2009	21.01	21.46	20.79	21.25
2936	NASDAQ	PRDO	Mon, Nov 2, 2009	20.87	21.18	20.53	21.10
2935	NASDAQ	PRDO	Fri, Oct 30, 2009	21.31	21.70	20.69	20.84
2934	NASDAQ	PRDO	Thu, Oct 29, 2009	22.31	22.76	21.28	21.39
2933	NASDAQ	PRDO	Wed, Oct 28, 2009	22.15	22.45	21.78	22.00
2932	NASDAQ	PRDO	Tue, Oct 27, 2009	24.12	24.39	23.44	23.49
2931	NASDAQ	PRDO	Mon, Oct 26, 2009	24.90	25.20	23.90	24.01
2930	NASDAQ	PRDO	Fri, Oct 23, 2009	25.64	25.88	24.96	25.09
2929	NASDAQ	PRDO	Thu, Oct 22, 2009	24.99	25.62	24.20	25.56
2928	NASDAQ	PRDO	Wed, Oct 21, 2009	25.38	25.91	25.08	25.16
2927	NASDAQ	PRDO	Tue, Oct 20, 2009	25.00	25.65	24.64	25.48
2926	NASDAQ	PRDO	Mon, Oct 19, 2009	24.82	25.33	24.70	25.03
2925	NASDAQ	PRDO	Fri, Oct 16, 2009	24.82	25.18	24.47	24.89
2924	NASDAQ	PRDO	Thu, Oct 15, 2009	24.68	25.16	24.54	24.84
2923	NASDAQ	PRDO	Wed, Oct 14, 2009	24.81	24.99	23.92	24.99
2922	NASDAQ	PRDO	Tue, Oct 13, 2009	24.74	24.80	24.28	24.44
2921	NASDAQ	PRDO	Mon, Oct 12, 2009	24.98	25.03	24.62	24.85
2920	NASDAQ	PRDO	Fri, Oct 9, 2009	25.04	25.20	24.70	24.83
2919	NASDAQ	PRDO	Thu, Oct 8, 2009	24.67	25.16	24.58	25.14
2918	NASDAQ	PRDO	Wed, Oct 7, 2009	24.46	24.73	24.32	24.54
2917	NASDAQ	PRDO	Tue, Oct 6, 2009	24.02	24.63	23.84	24.56
2916	NASDAQ	PRDO	Mon, Oct 5, 2009	23.74	23.98	23.39	23.95
2915	NASDAQ	PRDO	Fri, Oct 2, 2009	23.68	24.11	23.54	23.77
2914	NASDAQ	PRDO	Thu, Oct 1, 2009	24.25	24.56	23.69	23.71
2913	NASDAQ	PRDO	Wed, Sep 30, 2009	24.12	24.39	23.45	24.31
2912	NASDAQ	PRDO	Tue, Sep 29, 2009	24.01	24.47	23.84	24.20
2911	NASDAQ	PRDO	Mon, Sep 28, 2009	23.77	24.14	23.70	24.01
2910	NASDAQ	PRDO	Fri, Sep 25, 2009	24.06	24.51	23.60	23.74
2909	NASDAQ	PRDO	Thu, Sep 24, 2009	24.73	24.81	24.00	24.10
2908	NASDAQ	PRDO	Wed, Sep 23, 2009	25.10	25.10	24.52	24.60
2907	NASDAQ	PRDO	Tue, Sep 22, 2009	25.23	25.23	24.63	25.00
2906	NASDAQ	PRDO	Mon, Sep 21, 2009	23.84	25.64	23.62	25.60
2905	NASDAQ	PRDO	Fri, Sep 18, 2009	23.67	23.97	23.53	23.85
2904	NASDAQ	PRDO	Thu, Sep 17, 2009	22.70	23.86	22.61	23.67
2903	NASDAQ	PRDO	Wed, Sep 16, 2009	22.56	22.77	22.38	22.60
2902	NASDAQ	PRDO	Tue, Sep 15, 2009	22.56	22.84	22.53	22.60
2901	NASDAQ	PRDO	Mon, Sep 14, 2009	22.59	22.90	22.44	22.61
2900	NASDAQ	PRDO	Fri, Sep 11, 2009	23.13	23.23	22.48	22.61
2899	NASDAQ	PRDO	Thu, Sep 10, 2009	23.20	23.41	22.95	23.19
2898	NASDAQ	PRDO	Wed, Sep 9, 2009	23.04	23.37	23.04	23.20
2897	NASDAQ	PRDO	Tue, Sep 8, 2009	23.41	23.54	22.84	23.11
2896	NASDAQ	PRDO	Fri, Sep 4, 2009	23.35	23.55	23.07	23.38
2895	NASDAQ	PRDO	Thu, Sep 3, 2009	23.27	23.41	22.87	23.40
2894	NASDAQ	PRDO	Wed, Sep 2, 2009	23.18	23.72	23.18	23.29
2893	NASDAQ	PRDO	Tue, Sep 1, 2009	23.75	24.12	23.01	23.27
2892	NASDAQ	PRDO	Mon, Aug 31, 2009	23.99	24.13	23.52	23.75
2891	NASDAQ	PRDO	Fri, Aug 28, 2009	24.42	24.65	24.08	24.18
2890	NASDAQ	PRDO	Thu, Aug 27, 2009	24.42	24.48	23.77	24.22
2889	NASDAQ	PRDO	Wed, Aug 26, 2009	23.90	24.58	23.62	24.29
2888	NASDAQ	PRDO	Tue, Aug 25, 2009	25.00	25.73	23.82	24.05
2887	NASDAQ	PRDO	Mon, Aug 24, 2009	24.55	24.82	24.29	24.68
2886	NASDAQ	PRDO	Fri, Aug 21, 2009	24.34	24.68	24.26	24.44
2885	NASDAQ	PRDO	Thu, Aug 20, 2009	23.76	24.26	23.76	24.17
2884	NASDAQ	PRDO	Wed, Aug 19, 2009	23.62	24.01	23.59	23.90
2883	NASDAQ	PRDO	Tue, Aug 18, 2009	23.71	24.05	23.58	23.93
2882	NASDAQ	PRDO	Mon, Aug 17, 2009	23.53	23.77	23.36	23.72
2881	NASDAQ	PRDO	Fri, Aug 14, 2009	23.98	24.35	23.49	23.76
2880	NASDAQ	PRDO	Thu, Aug 13, 2009	23.81	24.23	23.70	24.19
2879	NASDAQ	PRDO	Wed, Aug 12, 2009	23.73	23.97	23.49	23.69
2878	NASDAQ	PRDO	Tue, Aug 11, 2009	23.76	24.08	23.46	23.80
2877	NASDAQ	PRDO	Mon, Aug 10, 2009	23.62	23.93	23.55	23.74
2876	NASDAQ	PRDO	Fri, Aug 7, 2009	23.75	24.08	23.23	23.77
2875	NASDAQ	PRDO	Thu, Aug 6, 2009	24.00	24.15	23.38	23.49
2874	NASDAQ	PRDO	Wed, Aug 5, 2009	23.70	24.08	23.46	23.88
2873	NASDAQ	PRDO	Tue, Aug 4, 2009	23.28	23.89	23.21	23.75
2872	NASDAQ	PRDO	Mon, Aug 3, 2009	22.99	23.60	22.76	23.59
2871	NASDAQ	PRDO	Fri, Jul 31, 2009	22.90	23.49	22.88	22.92
2870	NASDAQ	PRDO	Thu, Jul 30, 2009	23.37	23.42	22.61	23.01
2869	NASDAQ	PRDO	Wed, Jul 29, 2009	22.82	23.19	22.44	23.06
2868	NASDAQ	PRDO	Tue, Jul 28, 2009	22.56	22.99	22.51	22.79
2867	NASDAQ	PRDO	Mon, Jul 27, 2009	22.60	22.76	22.00	22.57
2866	NASDAQ	PRDO	Fri, Jul 24, 2009	22.25	22.79	22.12	22.54
2865	NASDAQ	PRDO	Thu, Jul 23, 2009	23.11	23.19	22.04	22.65
2864	NASDAQ	PRDO	Wed, Jul 22, 2009	22.01	23.32	22.01	23.01
2863	NASDAQ	PRDO	Tue, Jul 21, 2009	21.68	22.01	21.25	22.01
2862	NASDAQ	PRDO	Mon, Jul 20, 2009	21.48	21.58	21.07	21.54
2861	NASDAQ	PRDO	Fri, Jul 17, 2009	20.27	21.54	20.27	21.53
2860	NASDAQ	PRDO	Thu, Jul 16, 2009	20.62	21.03	20.11	21.00
2859	NASDAQ	PRDO	Wed, Jul 15, 2009	20.86	21.00	20.35	20.57
2858	NASDAQ	PRDO	Tue, Jul 14, 2009	20.38	20.77	20.32	20.65
2857	NASDAQ	PRDO	Mon, Jul 13, 2009	21.02	21.02	20.06	20.45
2856	NASDAQ	PRDO	Fri, Jul 10, 2009	20.52	21.34	20.52	20.84
2855	NASDAQ	PRDO	Thu, Jul 9, 2009	21.61	21.78	20.62	20.77
2854	NASDAQ	PRDO	Wed, Jul 8, 2009	22.59	22.89	21.32	21.49
2853	NASDAQ	PRDO	Tue, Jul 7, 2009	23.13	23.61	22.59	22.62
2852	NASDAQ	PRDO	Mon, Jul 6, 2009	23.76	23.94	23.13	23.25
2851	NASDAQ	PRDO	Thu, Jul 2, 2009	24.44	24.65	23.89	23.91
2850	NASDAQ	PRDO	Wed, Jul 1, 2009	24.59	24.85	23.78	24.61
2849	NASDAQ	PRDO	Tue, Jun 30, 2009	24.55	25.68	24.53	24.89
2848	NASDAQ	PRDO	Mon, Jun 29, 2009	24.47	24.47	23.48	23.76
2847	NASDAQ	PRDO	Fri, Jun 26, 2009	23.44	24.17	23.14	24.05
2846	NASDAQ	PRDO	Thu, Jun 25, 2009	21.61	23.41	21.25	23.37
2845	NASDAQ	PRDO	Wed, Jun 24, 2009	21.39	21.75	21.13	21.54
2844	NASDAQ	PRDO	Tue, Jun 23, 2009	21.81	22.06	21.06	21.10
2843	NASDAQ	PRDO	Mon, Jun 22, 2009	21.59	22.26	21.57	21.81
2842	NASDAQ	PRDO	Fri, Jun 19, 2009	22.12	22.82	21.76	21.78
2841	NASDAQ	PRDO	Thu, Jun 18, 2009	21.49	21.92	21.22	21.90
2840	NASDAQ	PRDO	Wed, Jun 17, 2009	20.56	22.00	20.45	21.55
2839	NASDAQ	PRDO	Tue, Jun 16, 2009	20.87	21.17	20.56	20.61
2838	NASDAQ	PRDO	Mon, Jun 15, 2009	21.03	21.19	20.43	20.68
2837	NASDAQ	PRDO	Fri, Jun 12, 2009	20.89	21.37	20.76	21.31
2836	NASDAQ	PRDO	Thu, Jun 11, 2009	21.17	21.44	20.98	21.02
2835	NASDAQ	PRDO	Wed, Jun 10, 2009	21.30	21.43	20.89	21.05
2834	NASDAQ	PRDO	Tue, Jun 9, 2009	21.13	21.35	20.97	21.17
2833	NASDAQ	PRDO	Mon, Jun 8, 2009	20.70	21.19	20.59	21.02
2832	NASDAQ	PRDO	Fri, Jun 5, 2009	20.97	21.16	20.55	20.88
2831	NASDAQ	PRDO	Thu, Jun 4, 2009	21.12	21.15	20.32	20.91
2830	NASDAQ	PRDO	Wed, Jun 3, 2009	21.06	21.27	20.91	21.13
2829	NASDAQ	PRDO	Tue, Jun 2, 2009	20.22	21.14	20.13	21.04
2828	NASDAQ	PRDO	Mon, Jun 1, 2009	20.25	20.71	20.12	20.35
2827	NASDAQ	PRDO	Fri, May 29, 2009	19.98	20.50	19.44	20.08
2826	NASDAQ	PRDO	Thu, May 28, 2009	19.85	19.89	18.93	19.51
2825	NASDAQ	PRDO	Wed, May 27, 2009	20.69	20.75	19.70	19.72
2824	NASDAQ	PRDO	Tue, May 26, 2009	20.51	21.71	20.44	20.86
2823	NASDAQ	PRDO	Fri, May 22, 2009	20.63	20.80	20.37	20.65
2822	NASDAQ	PRDO	Thu, May 21, 2009	20.36	20.87	20.11	20.62
2821	NASDAQ	PRDO	Wed, May 20, 2009	20.84	21.64	20.67	20.84
2820	NASDAQ	PRDO	Tue, May 19, 2009	20.38	21.05	20.32	20.72
2819	NASDAQ	PRDO	Mon, May 18, 2009	20.96	20.96	20.05	20.63
2818	NASDAQ	PRDO	Fri, May 15, 2009	20.72	21.20	20.50	20.75
2817	NASDAQ	PRDO	Thu, May 14, 2009	20.98	21.72	20.66	20.72
2816	NASDAQ	PRDO	Wed, May 13, 2009	21.14	21.33	20.59	21.00
2815	NASDAQ	PRDO	Tue, May 12, 2009	21.50	21.65	21.06	21.49
2814	NASDAQ	PRDO	Mon, May 11, 2009	20.04	21.50	19.94	21.17
2813	NASDAQ	PRDO	Fri, May 8, 2009	20.39	20.39	19.56	20.17
2812	NASDAQ	PRDO	Thu, May 7, 2009	18.90	19.66	17.95	19.17
2811	NASDAQ	PRDO	Wed, May 6, 2009	21.36	21.64	20.50	21.14
2810	NASDAQ	PRDO	Tue, May 5, 2009	20.95	21.92	20.73	21.37
2809	NASDAQ	PRDO	Mon, May 4, 2009	21.25	21.38	20.73	21.16
2808	NASDAQ	PRDO	Fri, May 1, 2009	21.92	21.99	21.09	21.34
2807	NASDAQ	PRDO	Thu, Apr 30, 2009	22.60	23.00	21.94	22.04
2806	NASDAQ	PRDO	Wed, Apr 29, 2009	21.53	21.91	21.21	21.67
2805	NASDAQ	PRDO	Tue, Apr 28, 2009	21.06	21.81	20.96	21.48
2804	NASDAQ	PRDO	Mon, Apr 27, 2009	21.11	21.67	20.98	21.30
2803	NASDAQ	PRDO	Fri, Apr 24, 2009	21.07	21.84	20.94	21.58
2802	NASDAQ	PRDO	Thu, Apr 23, 2009	21.58	21.99	20.75	21.05
2801	NASDAQ	PRDO	Wed, Apr 22, 2009	20.29	21.54	20.29	21.00
2800	NASDAQ	PRDO	Tue, Apr 21, 2009	21.00	21.23	20.20	20.55
2799	NASDAQ	PRDO	Mon, Apr 20, 2009	22.26	22.96	21.80	22.14
2798	NASDAQ	PRDO	Fri, Apr 17, 2009	22.12	22.93	21.85	22.68
2797	NASDAQ	PRDO	Thu, Apr 16, 2009	21.10	22.58	21.06	22.17
2796	NASDAQ	PRDO	Wed, Apr 15, 2009	20.61	21.22	20.57	21.05
2795	NASDAQ	PRDO	Tue, Apr 14, 2009	19.80	21.53	19.80	20.79
2794	NASDAQ	PRDO	Mon, Apr 13, 2009	20.04	20.17	19.62	20.07
2793	NASDAQ	PRDO	Thu, Apr 9, 2009	21.33	21.58	19.76	20.36
2792	NASDAQ	PRDO	Wed, Apr 8, 2009	21.45	21.66	20.16	21.07
2791	NASDAQ	PRDO	Tue, Apr 7, 2009	22.30	22.30	20.99	21.35
2790	NASDAQ	PRDO	Mon, Apr 6, 2009	22.30	22.66	22.00	22.40
2789	NASDAQ	PRDO	Fri, Apr 3, 2009	22.88	23.15	22.02	22.35
2788	NASDAQ	PRDO	Thu, Apr 2, 2009	22.99	23.36	22.73	22.88
2787	NASDAQ	PRDO	Wed, Apr 1, 2009	23.01	23.01	21.52	22.57
2786	NASDAQ	PRDO	Tue, Mar 31, 2009	25.21	25.25	23.86	23.96
2785	NASDAQ	PRDO	Mon, Mar 30, 2009	23.53	25.30	23.19	25.17
2784	NASDAQ	PRDO	Fri, Mar 27, 2009	24.33	24.46	23.83	23.88
2783	NASDAQ	PRDO	Thu, Mar 26, 2009	23.08	24.68	22.98	24.65
2782	NASDAQ	PRDO	Wed, Mar 25, 2009	22.52	23.84	22.52	23.43
2781	NASDAQ	PRDO	Tue, Mar 24, 2009	22.51	22.84	22.07	22.64
2780	NASDAQ	PRDO	Mon, Mar 23, 2009	22.13	22.50	21.22	22.38
2779	NASDAQ	PRDO	Fri, Mar 20, 2009	21.59	22.34	21.50	21.84
2778	NASDAQ	PRDO	Thu, Mar 19, 2009	21.75	22.59	21.25	21.51
2777	NASDAQ	PRDO	Wed, Mar 18, 2009	21.94	22.87	21.75	22.30
2776	NASDAQ	PRDO	Tue, Mar 17, 2009	20.75	22.26	20.55	22.15
2775	NASDAQ	PRDO	Mon, Mar 16, 2009	23.04	23.13	19.65	20.57
2774	NASDAQ	PRDO	Fri, Mar 13, 2009	22.82	23.17	21.75	23.13
2773	NASDAQ	PRDO	Thu, Mar 12, 2009	22.37	22.98	22.12	22.76
2772	NASDAQ	PRDO	Wed, Mar 11, 2009	21.74	22.84	21.44	22.46
2771	NASDAQ	PRDO	Tue, Mar 10, 2009	21.93	22.16	21.22	22.00
2770	NASDAQ	PRDO	Mon, Mar 9, 2009	20.54	21.68	20.18	21.04
2769	NASDAQ	PRDO	Fri, Mar 6, 2009	21.04	21.49	20.30	20.80
2768	NASDAQ	PRDO	Thu, Mar 5, 2009	22.13	22.26	20.79	20.96
2767	NASDAQ	PRDO	Wed, Mar 4, 2009	23.76	24.00	21.27	21.91
2766	NASDAQ	PRDO	Tue, Mar 3, 2009	23.05	23.79	22.76	23.46
2765	NASDAQ	PRDO	Mon, Mar 2, 2009	24.49	24.76	23.80	23.81
2764	NASDAQ	PRDO	Fri, Feb 27, 2009	24.01	25.39	23.80	24.67
2763	NASDAQ	PRDO	Thu, Feb 26, 2009	26.14	26.43	21.80	24.74
2762	NASDAQ	PRDO	Wed, Feb 25, 2009	25.13	26.53	25.12	26.15
2761	NASDAQ	PRDO	Tue, Feb 24, 2009	25.04	25.67	24.75	25.12
2760	NASDAQ	PRDO	Mon, Feb 23, 2009	24.35	25.40	23.94	24.80
2759	NASDAQ	PRDO	Fri, Feb 20, 2009	21.60	23.90	20.14	23.62
2758	NASDAQ	PRDO	Thu, Feb 19, 2009	21.85	22.09	19.29	19.66
2757	NASDAQ	PRDO	Wed, Feb 18, 2009	21.80	21.99	21.08	21.81
2756	NASDAQ	PRDO	Tue, Feb 17, 2009	21.70	22.13	21.21	21.79
2755	NASDAQ	PRDO	Fri, Feb 13, 2009	22.28	22.60	21.83	22.24
2754	NASDAQ	PRDO	Thu, Feb 12, 2009	20.44	22.42	20.11	22.33
2753	NASDAQ	PRDO	Wed, Feb 11, 2009	22.02	22.56	21.76	22.09
2752	NASDAQ	PRDO	Tue, Feb 10, 2009	22.35	22.76	21.79	21.88
2751	NASDAQ	PRDO	Mon, Feb 9, 2009	22.31	22.66	21.88	22.42
2750	NASDAQ	PRDO	Fri, Feb 6, 2009	21.94	22.42	21.32	22.36
2749	NASDAQ	PRDO	Thu, Feb 5, 2009	22.12	22.42	21.67	22.16
2748	NASDAQ	PRDO	Wed, Feb 4, 2009	23.28	23.57	22.01	22.38
2747	NASDAQ	PRDO	Tue, Feb 3, 2009	22.75	23.51	22.45	23.20
2746	NASDAQ	PRDO	Mon, Feb 2, 2009	21.62	22.79	21.57	22.42
2745	NASDAQ	PRDO	Fri, Jan 30, 2009	21.75	22.45	21.55	21.80
2744	NASDAQ	PRDO	Thu, Jan 29, 2009	20.97	21.96	20.87	21.78
2743	NASDAQ	PRDO	Wed, Jan 28, 2009	21.62	21.62	20.83	21.07
2742	NASDAQ	PRDO	Tue, Jan 27, 2009	21.36	21.69	20.47	21.20
2741	NASDAQ	PRDO	Mon, Jan 26, 2009	21.78	21.97	20.03	21.02
2740	NASDAQ	PRDO	Fri, Jan 23, 2009	21.35	21.84	20.82	21.66
2739	NASDAQ	PRDO	Thu, Jan 22, 2009	20.58	21.88	20.58	21.37
2738	NASDAQ	PRDO	Wed, Jan 21, 2009	21.38	21.38	19.94	20.65
2737	NASDAQ	PRDO	Tue, Jan 20, 2009	21.45	21.92	20.91	21.28
2736	NASDAQ	PRDO	Fri, Jan 16, 2009	20.93	21.53	20.01	21.41
2735	NASDAQ	PRDO	Thu, Jan 15, 2009	19.00	21.10	18.47	20.68
2734	NASDAQ	PRDO	Wed, Jan 14, 2009	19.49	19.74	18.78	18.87
2733	NASDAQ	PRDO	Tue, Jan 13, 2009	19.92	20.32	19.54	19.70
2732	NASDAQ	PRDO	Mon, Jan 12, 2009	19.37	20.06	19.24	20.01
2731	NASDAQ	PRDO	Fri, Jan 9, 2009	18.74	20.27	18.35	19.36
2730	NASDAQ	PRDO	Thu, Jan 8, 2009	17.57	18.31	17.45	17.81
2729	NASDAQ	PRDO	Wed, Jan 7, 2009	17.35	17.73	17.24	17.58
2728	NASDAQ	PRDO	Tue, Jan 6, 2009	17.43	17.78	17.18	17.51
2727	NASDAQ	PRDO	Mon, Jan 5, 2009	17.75	17.94	17.06	17.25
2726	NASDAQ	PRDO	Fri, Jan 2, 2009	18.02	18.21	17.69	17.90
2725	NASDAQ	PRDO	Wed, Dec 31, 2008	18.16	18.67	17.83	17.94
2724	NASDAQ	PRDO	Tue, Dec 30, 2008	17.75	18.00	17.40	17.99
2723	NASDAQ	PRDO	Mon, Dec 29, 2008	17.53	17.74	17.33	17.54
2722	NASDAQ	PRDO	Fri, Dec 26, 2008	17.50	17.70	17.15	17.56
2721	NASDAQ	PRDO	Wed, Dec 24, 2008	17.40	17.49	17.05	17.45
2720	NASDAQ	PRDO	Tue, Dec 23, 2008	17.63	17.87	17.00	17.30
2719	NASDAQ	PRDO	Mon, Dec 22, 2008	17.80	18.44	17.21	17.59
2718	NASDAQ	PRDO	Fri, Dec 19, 2008	17.89	18.45	17.63	17.80
2717	NASDAQ	PRDO	Thu, Dec 18, 2008	17.81	18.44	17.45	17.83
2716	NASDAQ	PRDO	Wed, Dec 17, 2008	17.12	17.90	17.12	17.67
2715	NASDAQ	PRDO	Tue, Dec 16, 2008	17.05	17.40	16.63	17.32
2714	NASDAQ	PRDO	Mon, Dec 15, 2008	17.67	18.23	16.75	17.05
2713	NASDAQ	PRDO	Fri, Dec 12, 2008	17.55	18.04	17.41	17.64
2712	NASDAQ	PRDO	Thu, Dec 11, 2008	18.37	18.80	17.72	17.92
2711	NASDAQ	PRDO	Wed, Dec 10, 2008	17.32	18.47	16.65	18.27
2710	NASDAQ	PRDO	Tue, Dec 9, 2008	17.99	18.19	17.08	17.10
2709	NASDAQ	PRDO	Mon, Dec 8, 2008	17.60	18.17	17.27	17.69
2708	NASDAQ	PRDO	Fri, Dec 5, 2008	16.57	17.26	15.94	17.18
2707	NASDAQ	PRDO	Thu, Dec 4, 2008	17.25	17.61	16.49	16.86
2706	NASDAQ	PRDO	Wed, Dec 3, 2008	17.08	17.64	16.50	17.39
2705	NASDAQ	PRDO	Tue, Dec 2, 2008	16.65	17.75	16.59	17.33
2704	NASDAQ	PRDO	Mon, Dec 1, 2008	17.73	18.29	16.91	16.92
2703	NASDAQ	PRDO	Fri, Nov 28, 2008	17.71	18.48	17.29	18.48
2702	NASDAQ	PRDO	Wed, Nov 26, 2008	17.40	18.33	17.24	17.91
2701	NASDAQ	PRDO	Tue, Nov 25, 2008	17.28	17.66	16.72	17.63
2700	NASDAQ	PRDO	Mon, Nov 24, 2008	16.32	17.26	15.64	17.03
2699	NASDAQ	PRDO	Fri, Nov 21, 2008	15.37	16.26	14.51	16.13
2698	NASDAQ	PRDO	Thu, Nov 20, 2008	15.19	16.26	15.16	15.21
2697	NASDAQ	PRDO	Wed, Nov 19, 2008	15.71	16.10	15.37	15.37
2696	NASDAQ	PRDO	Tue, Nov 18, 2008	15.06	16.18	14.94	15.85
2695	NASDAQ	PRDO	Mon, Nov 17, 2008	14.69	15.19	14.36	14.96
2694	NASDAQ	PRDO	Fri, Nov 14, 2008	14.67	15.42	14.27	14.84
2693	NASDAQ	PRDO	Thu, Nov 13, 2008	13.65	14.91	13.26	14.91
2692	NASDAQ	PRDO	Wed, Nov 12, 2008	13.58	14.05	13.38	13.54
2691	NASDAQ	PRDO	Tue, Nov 11, 2008	14.52	14.52	13.56	13.87
2690	NASDAQ	PRDO	Mon, Nov 10, 2008	15.03	15.03	14.25	14.50
2689	NASDAQ	PRDO	Fri, Nov 7, 2008	15.33	15.56	14.29	14.69
2688	NASDAQ	PRDO	Thu, Nov 6, 2008	14.01	15.56	14.01	14.77
2687	NASDAQ	PRDO	Wed, Nov 5, 2008	15.42	15.83	14.82	14.88
2686	NASDAQ	PRDO	Tue, Nov 4, 2008	16.28	16.28	15.06	15.35
2685	NASDAQ	PRDO	Mon, Nov 3, 2008	15.81	16.28	15.00	16.02
2684	NASDAQ	PRDO	Fri, Oct 31, 2008	13.92	15.91	13.92	15.81
2683	NASDAQ	PRDO	Thu, Oct 30, 2008	15.11	15.25	13.95	14.04
2682	NASDAQ	PRDO	Wed, Oct 29, 2008	13.98	15.07	13.92	14.63
2681	NASDAQ	PRDO	Tue, Oct 28, 2008	12.77	13.88	12.57	13.84
2680	NASDAQ	PRDO	Mon, Oct 27, 2008	13.04	13.69	12.44	12.47
2679	NASDAQ	PRDO	Fri, Oct 24, 2008	13.50	13.62	12.81	13.21
2678	NASDAQ	PRDO	Thu, Oct 23, 2008	14.06	14.69	13.16	13.74
2677	NASDAQ	PRDO	Wed, Oct 22, 2008	14.35	14.73	13.74	13.99
2676	NASDAQ	PRDO	Tue, Oct 21, 2008	14.74	15.05	13.98	14.68
2675	NASDAQ	PRDO	Mon, Oct 20, 2008	14.58	15.02	13.85	15.00
2674	NASDAQ	PRDO	Fri, Oct 17, 2008	13.99	14.70	13.79	14.23
2673	NASDAQ	PRDO	Thu, Oct 16, 2008	13.70	14.52	13.29	14.45
2672	NASDAQ	PRDO	Wed, Oct 15, 2008	14.11	14.30	13.58	13.60
2671	NASDAQ	PRDO	Tue, Oct 14, 2008	16.69	16.69	14.24	14.52
2670	NASDAQ	PRDO	Mon, Oct 13, 2008	15.79	16.34	15.11	15.99
2669	NASDAQ	PRDO	Fri, Oct 10, 2008	13.64	16.80	13.17	15.45
2668	NASDAQ	PRDO	Thu, Oct 9, 2008	14.57	14.58	14.01	14.17
2667	NASDAQ	PRDO	Wed, Oct 8, 2008	14.11	14.70	13.56	14.27
2666	NASDAQ	PRDO	Tue, Oct 7, 2008	15.58	16.18	14.13	14.20
2665	NASDAQ	PRDO	Mon, Oct 6, 2008	15.17	15.95	14.40	15.61
2664	NASDAQ	PRDO	Fri, Oct 3, 2008	16.09	16.43	15.26	15.32
2663	NASDAQ	PRDO	Thu, Oct 2, 2008	16.66	17.05	15.89	15.89
2662	NASDAQ	PRDO	Wed, Oct 1, 2008	16.28	17.08	16.24	16.90
2661	NASDAQ	PRDO	Tue, Sep 30, 2008	16.30	16.91	15.74	16.35
2660	NASDAQ	PRDO	Mon, Sep 29, 2008	17.12	17.77	15.67	15.85
2659	NASDAQ	PRDO	Fri, Sep 26, 2008	17.63	18.08	17.11	17.25
2658	NASDAQ	PRDO	Thu, Sep 25, 2008	18.33	18.38	17.83	17.98
2657	NASDAQ	PRDO	Wed, Sep 24, 2008	18.27	18.69	17.79	17.88
2656	NASDAQ	PRDO	Tue, Sep 23, 2008	18.23	19.06	18.05	18.26
2655	NASDAQ	PRDO	Mon, Sep 22, 2008	19.88	19.90	18.16	18.21
2654	NASDAQ	PRDO	Fri, Sep 19, 2008	19.91	20.89	18.82	19.12
2653	NASDAQ	PRDO	Thu, Sep 18, 2008	19.26	19.26	17.52	18.95
2652	NASDAQ	PRDO	Wed, Sep 17, 2008	19.43	20.40	18.21	18.39
2651	NASDAQ	PRDO	Tue, Sep 16, 2008	20.15	20.47	19.18	19.73
2650	NASDAQ	PRDO	Mon, Sep 15, 2008	19.42	20.40	19.12	19.93
2649	NASDAQ	PRDO	Fri, Sep 12, 2008	19.41	20.37	19.30	20.35
2648	NASDAQ	PRDO	Thu, Sep 11, 2008	18.83	19.58	18.57	19.46
2647	NASDAQ	PRDO	Wed, Sep 10, 2008	19.15	19.42	18.65	19.16
2646	NASDAQ	PRDO	Tue, Sep 9, 2008	19.95	20.58	19.74	20.01
2645	NASDAQ	PRDO	Mon, Sep 8, 2008	19.48	19.92	19.15	19.91
2644	NASDAQ	PRDO	Fri, Sep 5, 2008	19.00	19.06	18.65	18.95
2643	NASDAQ	PRDO	Thu, Sep 4, 2008	19.27	19.36	18.84	19.01
2642	NASDAQ	PRDO	Wed, Sep 3, 2008	19.04	19.64	18.88	19.40
2641	NASDAQ	PRDO	Tue, Sep 2, 2008	19.16	19.75	18.81	19.13
2640	NASDAQ	PRDO	Fri, Aug 29, 2008	18.80	19.20	18.69	18.75
2639	NASDAQ	PRDO	Thu, Aug 28, 2008	18.45	19.02	17.96	18.94
2638	NASDAQ	PRDO	Wed, Aug 27, 2008	18.06	18.66	18.06	18.39
2637	NASDAQ	PRDO	Tue, Aug 26, 2008	18.76	19.08	17.99	18.39
2636	NASDAQ	PRDO	Mon, Aug 25, 2008	19.46	19.46	18.56	18.76
2635	NASDAQ	PRDO	Fri, Aug 22, 2008	18.97	19.69	18.46	19.57
2634	NASDAQ	PRDO	Thu, Aug 21, 2008	18.65	18.97	18.52	18.87
2633	NASDAQ	PRDO	Wed, Aug 20, 2008	18.83	19.14	18.40	18.76
2632	NASDAQ	PRDO	Tue, Aug 19, 2008	19.43	19.43	18.67	18.70
2631	NASDAQ	PRDO	Mon, Aug 18, 2008	19.75	19.91	19.16	19.38
2630	NASDAQ	PRDO	Fri, Aug 15, 2008	19.49	19.83	19.12	19.69
2629	NASDAQ	PRDO	Thu, Aug 14, 2008	19.02	19.80	18.73	19.40
2628	NASDAQ	PRDO	Wed, Aug 13, 2008	19.26	19.49	18.44	19.06
2627	NASDAQ	PRDO	Tue, Aug 12, 2008	18.90	19.48	18.77	19.16
2626	NASDAQ	PRDO	Mon, Aug 11, 2008	18.96	19.35	18.30	18.98
2625	NASDAQ	PRDO	Fri, Aug 8, 2008	18.20	19.10	18.15	18.95
2624	NASDAQ	PRDO	Thu, Aug 7, 2008	17.49	19.25	17.31	18.20
2623	NASDAQ	PRDO	Wed, Aug 6, 2008	19.22	19.28	18.13	18.27
2622	NASDAQ	PRDO	Tue, Aug 5, 2008	19.14	19.45	18.66	19.37
2621	NASDAQ	PRDO	Mon, Aug 4, 2008	18.74	19.16	18.48	19.10
2620	NASDAQ	PRDO	Fri, Aug 1, 2008	18.25	18.94	17.82	18.61
2619	NASDAQ	PRDO	Thu, Jul 31, 2008	18.00	18.56	17.72	18.34
2618	NASDAQ	PRDO	Wed, Jul 30, 2008	17.70	18.48	17.70	18.33
2617	NASDAQ	PRDO	Tue, Jul 29, 2008	16.89	17.68	16.45	17.66
2616	NASDAQ	PRDO	Mon, Jul 28, 2008	16.94	17.25	16.52	16.56
2615	NASDAQ	PRDO	Fri, Jul 25, 2008	17.31	17.63	16.76	17.07
2614	NASDAQ	PRDO	Thu, Jul 24, 2008	16.49	17.53	16.12	17.21
2613	NASDAQ	PRDO	Wed, Jul 23, 2008	15.82	16.83	15.70	16.29
2612	NASDAQ	PRDO	Tue, Jul 22, 2008	14.91	15.77	14.75	15.72
2611	NASDAQ	PRDO	Mon, Jul 21, 2008	14.83	15.07	14.64	14.98
2610	NASDAQ	PRDO	Fri, Jul 18, 2008	15.05	15.15	14.62	14.89
2609	NASDAQ	PRDO	Thu, Jul 17, 2008	14.62	15.21	14.34	15.07
2608	NASDAQ	PRDO	Wed, Jul 16, 2008	14.20	14.56	13.93	14.51
2607	NASDAQ	PRDO	Tue, Jul 15, 2008	14.29	14.54	13.82	14.33
2606	NASDAQ	PRDO	Mon, Jul 14, 2008	15.02	15.02	14.03	14.45
2605	NASDAQ	PRDO	Fri, Jul 11, 2008	15.37	15.37	14.55	14.93
2604	NASDAQ	PRDO	Thu, Jul 10, 2008	15.28	15.66	15.21	15.52
2603	NASDAQ	PRDO	Wed, Jul 9, 2008	15.55	16.09	15.30	15.58
2602	NASDAQ	PRDO	Tue, Jul 8, 2008	14.76	15.58	14.31	15.55
2601	NASDAQ	PRDO	Mon, Jul 7, 2008	14.75	14.98	14.04	14.62
2600	NASDAQ	PRDO	Thu, Jul 3, 2008	15.06	15.21	14.50	14.69
2599	NASDAQ	PRDO	Wed, Jul 2, 2008	15.50	15.85	14.92	15.00
2598	NASDAQ	PRDO	Tue, Jul 1, 2008	14.56	14.94	14.34	14.87
2597	NASDAQ	PRDO	Mon, Jun 30, 2008	15.84	16.07	14.60	14.61
2596	NASDAQ	PRDO	Fri, Jun 27, 2008	15.90	16.15	15.52	15.78
2595	NASDAQ	PRDO	Thu, Jun 26, 2008	17.16	17.24	15.87	15.96
2594	NASDAQ	PRDO	Wed, Jun 25, 2008	16.96	16.98	16.55	16.75
2593	NASDAQ	PRDO	Tue, Jun 24, 2008	17.26	17.52	16.77	16.98
2592	NASDAQ	PRDO	Mon, Jun 23, 2008	17.65	17.70	17.07	17.32
2591	NASDAQ	PRDO	Fri, Jun 20, 2008	16.99	18.07	16.99	17.49
2590	NASDAQ	PRDO	Thu, Jun 19, 2008	16.79	17.18	16.37	17.13
2589	NASDAQ	PRDO	Wed, Jun 18, 2008	16.94	17.11	16.55	16.74
2588	NASDAQ	PRDO	Tue, Jun 17, 2008	17.19	17.22	16.83	17.06
2587	NASDAQ	PRDO	Mon, Jun 16, 2008	16.96	17.17	16.69	17.08
2586	NASDAQ	PRDO	Fri, Jun 13, 2008	16.97	17.19	16.76	17.14
2585	NASDAQ	PRDO	Thu, Jun 12, 2008	16.90	17.45	16.86	16.92
2584	NASDAQ	PRDO	Wed, Jun 11, 2008	17.71	17.77	16.86	16.90
2583	NASDAQ	PRDO	Tue, Jun 10, 2008	17.28	18.04	17.03	17.72
2582	NASDAQ	PRDO	Mon, Jun 9, 2008	17.96	17.96	17.23	17.46
2581	NASDAQ	PRDO	Fri, Jun 6, 2008	18.46	18.46	17.74	17.82
2580	NASDAQ	PRDO	Thu, Jun 5, 2008	18.30	18.64	18.06	18.64
2579	NASDAQ	PRDO	Wed, Jun 4, 2008	17.34	18.63	17.22	18.18
2578	NASDAQ	PRDO	Tue, Jun 3, 2008	17.79	18.11	17.28	17.48
2577	NASDAQ	PRDO	Mon, Jun 2, 2008	18.23	18.38	17.37	17.75
2576	NASDAQ	PRDO	Fri, May 30, 2008	18.60	18.70	17.75	18.29
2575	NASDAQ	PRDO	Thu, May 29, 2008	17.71	18.87	17.69	18.49
2574	NASDAQ	PRDO	Wed, May 28, 2008	17.76	18.00	17.52	17.78
2573	NASDAQ	PRDO	Tue, May 27, 2008	17.53	17.98	17.40	17.67
2572	NASDAQ	PRDO	Fri, May 23, 2008	17.68	17.79	17.15	17.46
2571	NASDAQ	PRDO	Thu, May 22, 2008	17.42	17.78	17.19	17.76
2570	NASDAQ	PRDO	Wed, May 21, 2008	17.75	17.78	16.99	17.38
2569	NASDAQ	PRDO	Tue, May 20, 2008	17.22	18.10	16.81	17.75
2568	NASDAQ	PRDO	Mon, May 19, 2008	19.30	19.38	18.48	18.76
2567	NASDAQ	PRDO	Fri, May 16, 2008	18.96	19.28	18.62	19.25
2566	NASDAQ	PRDO	Thu, May 15, 2008	19.12	19.12	18.46	18.85
2565	NASDAQ	PRDO	Wed, May 14, 2008	18.72	19.53	18.65	19.14
2564	NASDAQ	PRDO	Tue, May 13, 2008	19.10	19.25	18.46	18.64
2563	NASDAQ	PRDO	Mon, May 12, 2008	18.94	19.17	18.74	19.06
2562	NASDAQ	PRDO	Fri, May 9, 2008	18.67	19.02	18.67	18.88
2561	NASDAQ	PRDO	Thu, May 8, 2008	18.70	19.13	18.50	18.86
2560	NASDAQ	PRDO	Wed, May 7, 2008	20.00	20.03	18.53	18.68
2559	NASDAQ	PRDO	Tue, May 6, 2008	19.28	20.42	18.95	20.01
2558	NASDAQ	PRDO	Mon, May 5, 2008	20.28	20.28	19.31	19.52
2557	NASDAQ	PRDO	Fri, May 2, 2008	20.34	20.72	19.94	20.26
2556	NASDAQ	PRDO	Thu, May 1, 2008	20.09	20.40	19.57	20.39
2555	NASDAQ	PRDO	Wed, Apr 30, 2008	19.80	20.27	19.21	20.15
2554	NASDAQ	PRDO	Tue, Apr 29, 2008	19.69	19.98	19.31	19.72
2553	NASDAQ	PRDO	Mon, Apr 28, 2008	19.00	19.74	18.85	19.52
2552	NASDAQ	PRDO	Fri, Apr 25, 2008	18.17	19.09	18.17	19.03
2551	NASDAQ	PRDO	Thu, Apr 24, 2008	16.85	18.50	16.80	18.20
2550	NASDAQ	PRDO	Wed, Apr 23, 2008	16.79	17.01	16.39	16.80
2549	NASDAQ	PRDO	Tue, Apr 22, 2008	16.24	16.66	16.00	16.64
2548	NASDAQ	PRDO	Mon, Apr 21, 2008	16.43	16.73	16.12	16.22
2547	NASDAQ	PRDO	Fri, Apr 18, 2008	17.28	17.75	16.44	16.47
2546	NASDAQ	PRDO	Thu, Apr 17, 2008	16.12	17.32	15.93	17.08
2545	NASDAQ	PRDO	Wed, Apr 16, 2008	16.11	16.43	15.64	16.21
2544	NASDAQ	PRDO	Tue, Apr 15, 2008	16.10	16.51	15.67	15.77
2543	NASDAQ	PRDO	Mon, Apr 14, 2008	16.11	16.26	15.82	15.96
2542	NASDAQ	PRDO	Fri, Apr 11, 2008	16.39	16.41	15.89	16.08
2541	NASDAQ	PRDO	Thu, Apr 10, 2008	16.17	17.26	16.15	16.65
2540	NASDAQ	PRDO	Wed, Apr 9, 2008	16.44	16.59	15.87	16.05
2539	NASDAQ	PRDO	Tue, Apr 8, 2008	15.86	16.50	15.43	16.39
2538	NASDAQ	PRDO	Mon, Apr 7, 2008	16.03	16.63	15.77	16.32
2537	NASDAQ	PRDO	Fri, Apr 4, 2008	15.41	18.10	15.41	15.91
2536	NASDAQ	PRDO	Thu, Apr 3, 2008	13.92	15.37	13.59	15.37
2535	NASDAQ	PRDO	Wed, Apr 2, 2008	13.71	14.15	13.65	14.01
2534	NASDAQ	PRDO	Tue, Apr 1, 2008	12.87	13.63	12.69	13.57
2533	NASDAQ	PRDO	Mon, Mar 31, 2008	12.19	12.87	11.96	12.72
2532	NASDAQ	PRDO	Fri, Mar 28, 2008	12.75	12.75	11.90	12.05
2531	NASDAQ	PRDO	Thu, Mar 27, 2008	13.77	13.93	13.14	13.27
2530	NASDAQ	PRDO	Wed, Mar 26, 2008	13.79	13.97	13.51	13.77
2529	NASDAQ	PRDO	Tue, Mar 25, 2008	13.91	13.99	13.60	13.88
2528	NASDAQ	PRDO	Mon, Mar 24, 2008	13.67	14.09	13.23	13.95
2527	NASDAQ	PRDO	Thu, Mar 20, 2008	12.71	13.78	12.55	13.67
2526	NASDAQ	PRDO	Wed, Mar 19, 2008	13.15	13.15	12.51	12.63
2525	NASDAQ	PRDO	Tue, Mar 18, 2008	11.87	13.56	11.76	13.11
2524	NASDAQ	PRDO	Mon, Mar 17, 2008	12.49	12.50	11.57	11.74
2523	NASDAQ	PRDO	Fri, Mar 14, 2008	13.40	13.41	12.49	12.89
2522	NASDAQ	PRDO	Thu, Mar 13, 2008	13.50	13.61	12.63	13.32
2521	NASDAQ	PRDO	Wed, Mar 12, 2008	13.85	14.00	13.50	13.60
2520	NASDAQ	PRDO	Tue, Mar 11, 2008	13.87	14.07	13.59	13.87
2519	NASDAQ	PRDO	Mon, Mar 10, 2008	13.98	14.18	13.52	13.53
2518	NASDAQ	PRDO	Fri, Mar 7, 2008	13.64	14.31	13.64	13.97
2517	NASDAQ	PRDO	Thu, Mar 6, 2008	14.02	14.29	13.64	13.64
2516	NASDAQ	PRDO	Wed, Mar 5, 2008	14.26	14.55	14.00	14.02
2515	NASDAQ	PRDO	Tue, Mar 4, 2008	14.28	14.50	14.01	14.24
2514	NASDAQ	PRDO	Mon, Mar 3, 2008	14.82	14.97	14.30	14.39
2513	NASDAQ	PRDO	Fri, Feb 29, 2008	15.15	15.35	14.77	14.85
2512	NASDAQ	PRDO	Thu, Feb 28, 2008	16.14	16.20	15.03	15.28
2511	NASDAQ	PRDO	Wed, Feb 27, 2008	15.84	16.44	15.84	16.26
2510	NASDAQ	PRDO	Tue, Feb 26, 2008	15.16	16.01	15.16	16.00
2509	NASDAQ	PRDO	Mon, Feb 25, 2008	14.78	15.37	14.73	15.32
2508	NASDAQ	PRDO	Fri, Feb 22, 2008	15.53	15.82	14.55	15.02
2507	NASDAQ	PRDO	Thu, Feb 21, 2008	15.10	16.41	14.65	15.71
2506	NASDAQ	PRDO	Wed, Feb 20, 2008	16.95	17.77	16.92	17.50
2505	NASDAQ	PRDO	Tue, Feb 19, 2008	17.44	17.61	16.76	17.21
2504	NASDAQ	PRDO	Fri, Feb 15, 2008	16.71	17.51	16.71	17.33
2503	NASDAQ	PRDO	Thu, Feb 14, 2008	18.14	18.45	16.74	16.79
2502	NASDAQ	PRDO	Wed, Feb 13, 2008	18.31	18.48	17.55	18.31
2501	NASDAQ	PRDO	Tue, Feb 12, 2008	18.87	19.01	17.96	18.16
2500	NASDAQ	PRDO	Mon, Feb 11, 2008	19.13	19.15	18.60	18.64
2499	NASDAQ	PRDO	Fri, Feb 8, 2008	19.63	20.01	18.65	19.09
2498	NASDAQ	PRDO	Thu, Feb 7, 2008	20.36	20.85	19.64	19.68
2497	NASDAQ	PRDO	Wed, Feb 6, 2008	22.18	22.30	20.42	20.52
2496	NASDAQ	PRDO	Tue, Feb 5, 2008	21.85	22.65	21.75	22.11
2495	NASDAQ	PRDO	Mon, Feb 4, 2008	22.10	22.54	21.89	22.23
2494	NASDAQ	PRDO	Fri, Feb 1, 2008	21.73	22.23	21.26	22.10
2493	NASDAQ	PRDO	Thu, Jan 31, 2008	20.97	21.98	20.90	21.74
2492	NASDAQ	PRDO	Wed, Jan 30, 2008	21.61	21.83	21.08	21.25
2491	NASDAQ	PRDO	Tue, Jan 29, 2008	21.00	21.75	19.99	21.69
2490	NASDAQ	PRDO	Mon, Jan 28, 2008	18.97	20.97	18.69	20.97
2489	NASDAQ	PRDO	Fri, Jan 25, 2008	19.24	19.40	18.75	19.00
2488	NASDAQ	PRDO	Thu, Jan 24, 2008	17.43	19.19	17.10	19.16
2487	NASDAQ	PRDO	Wed, Jan 23, 2008	16.65	18.30	16.16	17.43
2486	NASDAQ	PRDO	Tue, Jan 22, 2008	18.20	18.20	15.53	17.03
2485	NASDAQ	PRDO	Fri, Jan 18, 2008	19.98	20.48	19.76	19.94
2484	NASDAQ	PRDO	Thu, Jan 17, 2008	20.80	20.95	19.90	19.95
2483	NASDAQ	PRDO	Wed, Jan 16, 2008	19.88	20.91	19.77	20.67
2482	NASDAQ	PRDO	Tue, Jan 15, 2008	20.67	20.67	19.96	20.00
2481	NASDAQ	PRDO	Mon, Jan 14, 2008	20.15	20.96	20.15	20.92
2480	NASDAQ	PRDO	Fri, Jan 11, 2008	22.15	22.15	18.99	20.08
2479	NASDAQ	PRDO	Thu, Jan 10, 2008	22.36	22.63	22.04	22.38
2478	NASDAQ	PRDO	Wed, Jan 9, 2008	22.48	23.21	21.95	22.52
2477	NASDAQ	PRDO	Tue, Jan 8, 2008	22.60	23.15	21.99	22.06
2476	NASDAQ	PRDO	Mon, Jan 7, 2008	22.23	22.77	22.21	22.57
2475	NASDAQ	PRDO	Fri, Jan 4, 2008	22.65	22.91	22.02	22.17
2474	NASDAQ	PRDO	Thu, Jan 3, 2008	23.10	23.54	22.85	22.96
2473	NASDAQ	PRDO	Wed, Jan 2, 2008	25.09	25.15	22.96	23.10
2472	NASDAQ	PRDO	Mon, Dec 31, 2007	25.10	25.28	24.83	25.14
2471	NASDAQ	PRDO	Fri, Dec 28, 2007	24.81	25.31	24.81	25.10
2470	NASDAQ	PRDO	Thu, Dec 27, 2007	25.63	25.75	24.72	24.79
2469	NASDAQ	PRDO	Wed, Dec 26, 2007	26.06	26.21	25.46	25.69
2468	NASDAQ	PRDO	Mon, Dec 24, 2007	25.78	26.54	25.62	26.46
2467	NASDAQ	PRDO	Fri, Dec 21, 2007	26.60	26.60	25.68	25.68
2466	NASDAQ	PRDO	Thu, Dec 20, 2007	26.21	26.25	25.78	26.00
2465	NASDAQ	PRDO	Wed, Dec 19, 2007	27.28	27.79	25.56	25.96
2464	NASDAQ	PRDO	Tue, Dec 18, 2007	28.00	28.30	26.77	27.29
2463	NASDAQ	PRDO	Mon, Dec 17, 2007	29.29	29.29	27.74	27.80
2462	NASDAQ	PRDO	Fri, Dec 14, 2007	28.90	29.52	28.77	29.37
2461	NASDAQ	PRDO	Thu, Dec 13, 2007	28.72	29.52	28.72	29.11
2460	NASDAQ	PRDO	Wed, Dec 12, 2007	28.44	29.14	28.22	29.14
2459	NASDAQ	PRDO	Tue, Dec 11, 2007	28.51	30.69	26.94	27.98
2458	NASDAQ	PRDO	Mon, Dec 10, 2007	28.25	28.89	28.12	28.50
2457	NASDAQ	PRDO	Fri, Dec 7, 2007	28.83	29.08	27.80	28.27
2456	NASDAQ	PRDO	Thu, Dec 6, 2007	28.78	29.21	28.09	28.88
2455	NASDAQ	PRDO	Wed, Dec 5, 2007	29.21	29.60	28.80	28.94
2454	NASDAQ	PRDO	Tue, Dec 4, 2007	28.61	29.28	28.44	28.80
2453	NASDAQ	PRDO	Mon, Dec 3, 2007	28.60	29.16	28.32	28.84
2452	NASDAQ	PRDO	Fri, Nov 30, 2007	28.29	29.47	28.10	28.73
2451	NASDAQ	PRDO	Thu, Nov 29, 2007	28.39	28.76	28.04	28.37
2450	NASDAQ	PRDO	Wed, Nov 28, 2007	27.75	28.93	27.36	28.57
2449	NASDAQ	PRDO	Tue, Nov 27, 2007	26.95	28.07	26.92	27.59
2448	NASDAQ	PRDO	Mon, Nov 26, 2007	29.00	29.35	27.55	27.59
2447	NASDAQ	PRDO	Fri, Nov 23, 2007	27.39	29.15	27.33	28.98
2446	NASDAQ	PRDO	Wed, Nov 21, 2007	28.62	28.95	27.33	27.54
2445	NASDAQ	PRDO	Tue, Nov 20, 2007	29.71	30.20	27.99	28.87
2444	NASDAQ	PRDO	Mon, Nov 19, 2007	30.47	30.95	29.65	29.77
2443	NASDAQ	PRDO	Fri, Nov 16, 2007	30.94	31.20	30.20	30.75
2442	NASDAQ	PRDO	Thu, Nov 15, 2007	31.75	32.07	30.70	30.79
2441	NASDAQ	PRDO	Wed, Nov 14, 2007	32.32	32.41	31.64	31.82
2440	NASDAQ	PRDO	Tue, Nov 13, 2007	32.12	32.63	31.92	32.21
2439	NASDAQ	PRDO	Mon, Nov 12, 2007	32.33	32.66	31.76	31.96
2438	NASDAQ	PRDO	Fri, Nov 9, 2007	33.10	33.21	32.34	32.45
2437	NASDAQ	PRDO	Thu, Nov 8, 2007	32.48	33.37	32.13	33.33
2436	NASDAQ	PRDO	Wed, Nov 7, 2007	33.00	33.51	32.28	32.33
2435	NASDAQ	PRDO	Tue, Nov 6, 2007	33.39	33.39	31.41	32.40
2434	NASDAQ	PRDO	Mon, Nov 5, 2007	34.19	35.37	33.30	34.87
2433	NASDAQ	PRDO	Fri, Nov 2, 2007	35.56	35.56	34.36	34.79
2432	NASDAQ	PRDO	Thu, Nov 1, 2007	35.50	35.50	34.51	35.33
2431	NASDAQ	PRDO	Wed, Oct 31, 2007	34.38	36.09	34.00	35.74
2430	NASDAQ	PRDO	Tue, Oct 30, 2007	34.84	35.50	34.18	34.32
2429	NASDAQ	PRDO	Mon, Oct 29, 2007	35.27	35.46	34.36	34.97
2428	NASDAQ	PRDO	Fri, Oct 26, 2007	34.59	35.48	33.91	35.18
2427	NASDAQ	PRDO	Thu, Oct 25, 2007	33.58	34.34	33.24	34.07
2426	NASDAQ	PRDO	Wed, Oct 24, 2007	34.10	34.25	33.01	33.63
2425	NASDAQ	PRDO	Tue, Oct 23, 2007	33.46	34.65	32.70	34.30
2424	NASDAQ	PRDO	Mon, Oct 22, 2007	33.39	33.56	32.68	33.33
2423	NASDAQ	PRDO	Fri, Oct 19, 2007	34.94	35.00	33.46	33.66
2422	NASDAQ	PRDO	Thu, Oct 18, 2007	30.16	35.31	29.58	35.08
2421	NASDAQ	PRDO	Wed, Oct 17, 2007	31.20	31.78	30.30	30.64
2420	NASDAQ	PRDO	Tue, Oct 16, 2007	30.99	31.72	30.83	31.41
2419	NASDAQ	PRDO	Mon, Oct 15, 2007	31.41	31.41	30.30	30.94
2418	NASDAQ	PRDO	Fri, Oct 12, 2007	30.74	31.48	30.74	31.42
2417	NASDAQ	PRDO	Thu, Oct 11, 2007	31.01	31.40	30.45	30.73
2416	NASDAQ	PRDO	Wed, Oct 10, 2007	30.88	31.03	30.56	30.86
2415	NASDAQ	PRDO	Tue, Oct 9, 2007	30.90	30.98	30.62	30.95
2414	NASDAQ	PRDO	Mon, Oct 8, 2007	30.83	30.96	30.57	30.86
2413	NASDAQ	PRDO	Fri, Oct 5, 2007	29.75	31.08	29.51	31.04
2412	NASDAQ	PRDO	Thu, Oct 4, 2007	29.55	30.06	29.44	29.89
2411	NASDAQ	PRDO	Wed, Oct 3, 2007	28.78	29.52	28.65	29.50
2410	NASDAQ	PRDO	Tue, Oct 2, 2007	28.06	28.93	28.06	28.83
2409	NASDAQ	PRDO	Mon, Oct 1, 2007	27.90	28.45	27.69	28.02
2408	NASDAQ	PRDO	Fri, Sep 28, 2007	27.71	27.99	27.45	27.99
2407	NASDAQ	PRDO	Thu, Sep 27, 2007	26.88	27.85	26.80	27.75
2406	NASDAQ	PRDO	Wed, Sep 26, 2007	27.07	27.07	26.56	26.91
2405	NASDAQ	PRDO	Tue, Sep 25, 2007	26.96	27.31	26.78	26.99
2404	NASDAQ	PRDO	Mon, Sep 24, 2007	27.26	27.65	26.99	27.14
2403	NASDAQ	PRDO	Fri, Sep 21, 2007	26.89	27.52	26.83	27.30
2402	NASDAQ	PRDO	Thu, Sep 20, 2007	26.61	26.85	26.10	26.68
2401	NASDAQ	PRDO	Wed, Sep 19, 2007	26.80	26.99	26.45	26.69
2400	NASDAQ	PRDO	Tue, Sep 18, 2007	26.31	26.66	26.12	26.62
2399	NASDAQ	PRDO	Mon, Sep 17, 2007	26.85	26.92	25.95	26.17
2398	NASDAQ	PRDO	Fri, Sep 14, 2007	27.00	27.26	26.84	26.96
2397	NASDAQ	PRDO	Thu, Sep 13, 2007	27.78	28.22	27.04	27.15
2396	NASDAQ	PRDO	Wed, Sep 12, 2007	27.90	28.18	27.71	27.79
2395	NASDAQ	PRDO	Tue, Sep 11, 2007	28.08	28.45	27.76	28.01
2394	NASDAQ	PRDO	Mon, Sep 10, 2007	29.17	29.46	27.40	27.98
2393	NASDAQ	PRDO	Fri, Sep 7, 2007	29.06	29.52	28.88	29.01
2392	NASDAQ	PRDO	Thu, Sep 6, 2007	29.49	29.60	29.12	29.37
2391	NASDAQ	PRDO	Wed, Sep 5, 2007	29.21	29.53	28.87	29.38
2390	NASDAQ	PRDO	Tue, Sep 4, 2007	29.51	29.63	29.34	29.46
2389	NASDAQ	PRDO	Fri, Aug 31, 2007	29.48	29.78	29.04	29.70
2388	NASDAQ	PRDO	Thu, Aug 30, 2007	29.01	29.41	28.63	29.20
2387	NASDAQ	PRDO	Wed, Aug 29, 2007	29.71	29.71	28.53	29.19
2386	NASDAQ	PRDO	Tue, Aug 28, 2007	29.62	29.85	29.55	29.59
2385	NASDAQ	PRDO	Mon, Aug 27, 2007	29.78	29.90	29.62	29.76
2384	NASDAQ	PRDO	Fri, Aug 24, 2007	29.45	29.93	29.25	29.88
2383	NASDAQ	PRDO	Thu, Aug 23, 2007	30.46	30.47	29.39	29.55
2382	NASDAQ	PRDO	Wed, Aug 22, 2007	27.84	30.52	27.76	30.43
2381	NASDAQ	PRDO	Tue, Aug 21, 2007	26.80	27.77	26.79	27.61
2380	NASDAQ	PRDO	Mon, Aug 20, 2007	27.23	27.68	26.65	26.96
2379	NASDAQ	PRDO	Fri, Aug 17, 2007	26.80	27.12	26.35	26.96
2378	NASDAQ	PRDO	Thu, Aug 16, 2007	27.00	27.26	26.39	26.73
2377	NASDAQ	PRDO	Wed, Aug 15, 2007	27.30	27.65	26.55	26.60
2376	NASDAQ	PRDO	Tue, Aug 14, 2007	28.42	28.90	27.14	27.25
2375	NASDAQ	PRDO	Mon, Aug 13, 2007	28.47	29.65	27.92	28.85
2374	NASDAQ	PRDO	Fri, Aug 10, 2007	28.02	29.12	25.56	26.43
2373	NASDAQ	PRDO	Thu, Aug 9, 2007	27.00	28.69	26.20	27.60
2372	NASDAQ	PRDO	Wed, Aug 8, 2007	31.10	31.10	28.60	29.37
2371	NASDAQ	PRDO	Tue, Aug 7, 2007	30.58	31.13	29.10	30.06
2370	NASDAQ	PRDO	Mon, Aug 6, 2007	30.19	30.62	29.58	30.54
2369	NASDAQ	PRDO	Fri, Aug 3, 2007	30.36	30.59	30.06	30.14
2368	NASDAQ	PRDO	Thu, Aug 2, 2007	29.60	30.36	29.47	30.36
2367	NASDAQ	PRDO	Wed, Aug 1, 2007	29.54	29.90	28.80	29.52
2366	NASDAQ	PRDO	Tue, Jul 31, 2007	29.95	30.11	29.52	29.68
2365	NASDAQ	PRDO	Mon, Jul 30, 2007	30.00	30.17	29.51	29.88
2364	NASDAQ	PRDO	Fri, Jul 27, 2007	31.26	31.34	29.92	29.94
2363	NASDAQ	PRDO	Thu, Jul 26, 2007	30.83	31.53	30.38	31.23
2362	NASDAQ	PRDO	Wed, Jul 25, 2007	31.58	31.92	30.81	31.22
2361	NASDAQ	PRDO	Tue, Jul 24, 2007	32.31	32.43	31.47	31.54
2360	NASDAQ	PRDO	Mon, Jul 23, 2007	32.62	35.62	32.30	32.53
2359	NASDAQ	PRDO	Fri, Jul 20, 2007	32.77	32.79	32.30	32.49
2358	NASDAQ	PRDO	Thu, Jul 19, 2007	32.86	33.25	32.64	32.82
2357	NASDAQ	PRDO	Wed, Jul 18, 2007	32.76	32.99	32.04	32.72
2356	NASDAQ	PRDO	Tue, Jul 17, 2007	32.97	33.37	32.81	32.98
2355	NASDAQ	PRDO	Mon, Jul 16, 2007	33.49	33.72	32.36	33.00
2354	NASDAQ	PRDO	Fri, Jul 13, 2007	33.63	33.69	32.98	33.36
2353	NASDAQ	PRDO	Thu, Jul 12, 2007	33.10	33.71	33.09	33.60
2352	NASDAQ	PRDO	Wed, Jul 11, 2007	32.89	33.51	32.85	32.98
2351	NASDAQ	PRDO	Tue, Jul 10, 2007	33.64	33.64	32.89	32.92
2350	NASDAQ	PRDO	Mon, Jul 9, 2007	33.78	33.90	33.20	33.74
2349	NASDAQ	PRDO	Fri, Jul 6, 2007	33.51	33.95	33.03	33.78
2348	NASDAQ	PRDO	Thu, Jul 5, 2007	34.27	34.29	33.04	33.34
2347	NASDAQ	PRDO	Tue, Jul 3, 2007	34.49	34.75	34.24	34.28
2346	NASDAQ	PRDO	Mon, Jul 2, 2007	33.90	34.42	33.89	34.30
2345	NASDAQ	PRDO	Fri, Jun 29, 2007	34.10	34.52	33.73	33.77
2344	NASDAQ	PRDO	Thu, Jun 28, 2007	33.79	33.92	33.58	33.73
2343	NASDAQ	PRDO	Wed, Jun 27, 2007	33.52	33.94	33.23	33.79
2342	NASDAQ	PRDO	Tue, Jun 26, 2007	33.71	33.90	33.30	33.60
2341	NASDAQ	PRDO	Mon, Jun 25, 2007	33.34	33.91	33.31	33.58
2340	NASDAQ	PRDO	Fri, Jun 22, 2007	33.62	33.91	32.93	33.28
2339	NASDAQ	PRDO	Thu, Jun 21, 2007	33.56	33.78	33.48	33.62
2338	NASDAQ	PRDO	Wed, Jun 20, 2007	33.67	33.93	33.52	33.57
2337	NASDAQ	PRDO	Tue, Jun 19, 2007	33.74	33.95	33.50	33.54
2336	NASDAQ	PRDO	Mon, Jun 18, 2007	33.98	34.06	33.79	33.90
2335	NASDAQ	PRDO	Fri, Jun 15, 2007	33.92	34.00	33.71	33.77
2334	NASDAQ	PRDO	Thu, Jun 14, 2007	33.72	34.00	33.61	33.73
2333	NASDAQ	PRDO	Wed, Jun 13, 2007	33.65	34.02	33.45	33.75
2332	NASDAQ	PRDO	Tue, Jun 12, 2007	33.69	33.94	33.57	33.59
2331	NASDAQ	PRDO	Mon, Jun 11, 2007	33.52	33.90	33.44	33.76
2330	NASDAQ	PRDO	Fri, Jun 8, 2007	33.61	33.87	33.44	33.54
2329	NASDAQ	PRDO	Thu, Jun 7, 2007	34.29	34.56	33.65	33.68
2328	NASDAQ	PRDO	Wed, Jun 6, 2007	34.73	35.25	34.28	34.33
2327	NASDAQ	PRDO	Tue, Jun 5, 2007	34.97	35.06	34.66	34.73
2326	NASDAQ	PRDO	Mon, Jun 4, 2007	34.98	35.24	34.80	35.00
2325	NASDAQ	PRDO	Fri, Jun 1, 2007	35.14	35.71	34.61	35.00
2324	NASDAQ	PRDO	Thu, May 31, 2007	35.05	35.05	34.08	34.87
2323	NASDAQ	PRDO	Wed, May 30, 2007	34.83	35.07	34.46	35.01
2322	NASDAQ	PRDO	Tue, May 29, 2007	35.15	35.71	35.02	35.21
2321	NASDAQ	PRDO	Fri, May 25, 2007	35.35	35.35	34.97	35.13
2320	NASDAQ	PRDO	Thu, May 24, 2007	35.43	35.65	34.83	35.35
2319	NASDAQ	PRDO	Wed, May 23, 2007	35.84	35.88	35.19	35.54
2318	NASDAQ	PRDO	Tue, May 22, 2007	35.11	35.95	35.02	35.88
2317	NASDAQ	PRDO	Mon, May 21, 2007	34.31	35.41	34.14	35.11
2316	NASDAQ	PRDO	Fri, May 18, 2007	34.00	34.96	33.84	34.27
2315	NASDAQ	PRDO	Thu, May 17, 2007	34.13	34.28	33.91	33.96
2314	NASDAQ	PRDO	Wed, May 16, 2007	34.30	34.41	33.88	34.25
2313	NASDAQ	PRDO	Tue, May 15, 2007	34.50	34.75	34.20	34.26
2312	NASDAQ	PRDO	Mon, May 14, 2007	34.44	34.89	34.28	34.55
2311	NASDAQ	PRDO	Fri, May 11, 2007	34.58	34.81	34.11	34.53
2310	NASDAQ	PRDO	Thu, May 10, 2007	34.80	34.99	34.21	34.47
2309	NASDAQ	PRDO	Wed, May 9, 2007	34.83	35.38	34.57	34.96
2308	NASDAQ	PRDO	Tue, May 8, 2007	34.86	35.14	34.54	35.05
2307	NASDAQ	PRDO	Mon, May 7, 2007	35.18	35.41	34.81	35.00
2306	NASDAQ	PRDO	Fri, May 4, 2007	32.41	36.68	31.41	35.53
2305	NASDAQ	PRDO	Thu, May 3, 2007	29.94	29.94	29.16	29.29
2304	NASDAQ	PRDO	Wed, May 2, 2007	29.98	30.38	29.91	30.06
2303	NASDAQ	PRDO	Tue, May 1, 2007	29.77	30.00	29.24	29.98
2302	NASDAQ	PRDO	Mon, Apr 30, 2007	29.88	30.23	29.47	29.54
2301	NASDAQ	PRDO	Fri, Apr 27, 2007	29.91	30.50	29.82	29.88
2300	NASDAQ	PRDO	Thu, Apr 26, 2007	29.90	30.28	29.87	30.00
2299	NASDAQ	PRDO	Wed, Apr 25, 2007	30.00	30.03	29.87	29.90
2298	NASDAQ	PRDO	Tue, Apr 24, 2007	29.99	30.09	29.77	29.90
2297	NASDAQ	PRDO	Mon, Apr 23, 2007	29.90	30.00	29.68	29.89
2296	NASDAQ	PRDO	Fri, Apr 20, 2007	30.40	30.70	29.76	29.90
2295	NASDAQ	PRDO	Thu, Apr 19, 2007	30.11	30.39	29.28	29.96
2294	NASDAQ	PRDO	Wed, Apr 18, 2007	30.82	30.84	29.90	30.19
2293	NASDAQ	PRDO	Tue, Apr 17, 2007	30.85	31.08	30.62	31.00
2292	NASDAQ	PRDO	Mon, Apr 16, 2007	30.23	31.06	30.20	30.88
2291	NASDAQ	PRDO	Fri, Apr 13, 2007	30.00	30.69	29.74	30.23
2290	NASDAQ	PRDO	Thu, Apr 12, 2007	29.84	30.14	29.28	29.99
2289	NASDAQ	PRDO	Wed, Apr 11, 2007	29.97	30.36	29.77	29.91
2288	NASDAQ	PRDO	Tue, Apr 10, 2007	30.47	30.88	30.00	30.18
2287	NASDAQ	PRDO	Mon, Apr 9, 2007	31.03	31.32	30.45	30.52
2286	NASDAQ	PRDO	Thu, Apr 5, 2007	30.60	31.50	30.20	30.86
2285	NASDAQ	PRDO	Wed, Apr 4, 2007	30.63	30.87	30.56	30.62
2284	NASDAQ	PRDO	Tue, Apr 3, 2007	30.23	31.00	29.88	30.75
2283	NASDAQ	PRDO	Mon, Apr 2, 2007	30.27	30.90	30.22	30.65
2282	NASDAQ	PRDO	Fri, Mar 30, 2007	30.70	31.01	30.23	30.50
2281	NASDAQ	PRDO	Thu, Mar 29, 2007	31.16	31.20	30.33	30.60
2280	NASDAQ	PRDO	Wed, Mar 28, 2007	31.11	31.31	30.58	31.02
2279	NASDAQ	PRDO	Tue, Mar 27, 2007	31.80	31.84	31.20	31.26
2278	NASDAQ	PRDO	Mon, Mar 26, 2007	32.30	32.45	31.62	31.82
2277	NASDAQ	PRDO	Fri, Mar 23, 2007	32.15	32.71	32.04	32.23
2276	NASDAQ	PRDO	Thu, Mar 22, 2007	31.22	32.58	30.94	32.05
2275	NASDAQ	PRDO	Wed, Mar 21, 2007	29.76	31.16	29.76	31.10
2274	NASDAQ	PRDO	Tue, Mar 20, 2007	29.70	29.99	29.70	29.98
2273	NASDAQ	PRDO	Mon, Mar 19, 2007	29.59	29.96	29.21	29.68
2272	NASDAQ	PRDO	Fri, Mar 16, 2007	29.50	29.66	29.25	29.44
2271	NASDAQ	PRDO	Thu, Mar 15, 2007	29.55	29.86	29.36	29.55
2270	NASDAQ	PRDO	Wed, Mar 14, 2007	29.66	29.66	29.37	29.48
2269	NASDAQ	PRDO	Tue, Mar 13, 2007	29.89	30.07	29.55	29.58
2268	NASDAQ	PRDO	Mon, Mar 12, 2007	29.75	30.29	29.70	30.00
2267	NASDAQ	PRDO	Fri, Mar 9, 2007	29.99	30.00	29.61	29.71
2266	NASDAQ	PRDO	Thu, Mar 8, 2007	29.95	30.19	29.66	29.68
2265	NASDAQ	PRDO	Wed, Mar 7, 2007	30.12	30.24	29.91	29.96
2264	NASDAQ	PRDO	Tue, Mar 6, 2007	29.78	30.23	29.41	30.09
2263	NASDAQ	PRDO	Mon, Mar 5, 2007	29.99	30.31	29.40	29.73
2262	NASDAQ	PRDO	Fri, Mar 2, 2007	29.79	31.85	29.79	30.25
2261	NASDAQ	PRDO	Thu, Mar 1, 2007	28.98	30.22	28.80	29.83
2260	NASDAQ	PRDO	Wed, Feb 28, 2007	29.50	30.05	28.95	29.58
2259	NASDAQ	PRDO	Tue, Feb 27, 2007	29.61	30.38	29.00	29.43
2258	NASDAQ	PRDO	Mon, Feb 26, 2007	30.19	30.29	29.65	29.86
2257	NASDAQ	PRDO	Fri, Feb 23, 2007	29.71	30.32	29.62	30.08
2256	NASDAQ	PRDO	Thu, Feb 22, 2007	29.23	29.78	29.23	29.71
2255	NASDAQ	PRDO	Wed, Feb 21, 2007	28.99	29.81	28.80	29.31
2254	NASDAQ	PRDO	Tue, Feb 20, 2007	28.88	29.29	28.30	28.66
2253	NASDAQ	PRDO	Fri, Feb 16, 2007	27.10	29.00	26.33	28.88
2252	NASDAQ	PRDO	Thu, Feb 15, 2007	29.45	29.85	29.45	29.64
2251	NASDAQ	PRDO	Wed, Feb 14, 2007	29.38	29.49	29.29	29.46
2250	NASDAQ	PRDO	Tue, Feb 13, 2007	29.47	29.50	29.25	29.35
2249	NASDAQ	PRDO	Mon, Feb 12, 2007	29.41	29.49	29.19	29.30
2248	NASDAQ	PRDO	Fri, Feb 9, 2007	29.01	29.33	29.01	29.31
2247	NASDAQ	PRDO	Thu, Feb 8, 2007	29.00	29.18	28.96	29.05
2246	NASDAQ	PRDO	Wed, Feb 7, 2007	29.08	29.25	28.97	29.01
2245	NASDAQ	PRDO	Tue, Feb 6, 2007	28.80	29.13	28.55	28.98
2244	NASDAQ	PRDO	Mon, Feb 5, 2007	28.77	28.97	28.59	28.92
2243	NASDAQ	PRDO	Fri, Feb 2, 2007	28.58	28.87	28.50	28.77
2242	NASDAQ	PRDO	Thu, Feb 1, 2007	28.61	28.99	28.47	28.59
2241	NASDAQ	PRDO	Wed, Jan 31, 2007	28.68	28.85	28.44	28.67
2240	NASDAQ	PRDO	Tue, Jan 30, 2007	28.67	28.77	28.10	28.63
2239	NASDAQ	PRDO	Mon, Jan 29, 2007	28.18	28.82	28.07	28.56
2238	NASDAQ	PRDO	Fri, Jan 26, 2007	27.46	27.56	27.19	27.44
2237	NASDAQ	PRDO	Thu, Jan 25, 2007	26.64	27.45	26.54	27.44
2236	NASDAQ	PRDO	Wed, Jan 24, 2007	26.17	26.66	26.00	26.61
2235	NASDAQ	PRDO	Tue, Jan 23, 2007	26.92	27.20	25.71	26.03
2234	NASDAQ	PRDO	Mon, Jan 22, 2007	27.10	28.13	26.64	26.86
2233	NASDAQ	PRDO	Fri, Jan 19, 2007	25.31	25.54	25.20	25.40
2232	NASDAQ	PRDO	Thu, Jan 18, 2007	25.57	25.70	25.20	25.36
2231	NASDAQ	PRDO	Wed, Jan 17, 2007	25.39	25.72	25.31	25.57
2230	NASDAQ	PRDO	Tue, Jan 16, 2007	25.73	26.13	25.55	25.88
2229	NASDAQ	PRDO	Fri, Jan 12, 2007	25.28	25.72	25.11	25.56
2228	NASDAQ	PRDO	Thu, Jan 11, 2007	25.40	25.46	25.10	25.34
2227	NASDAQ	PRDO	Wed, Jan 10, 2007	25.42	25.44	25.06	25.35
2226	NASDAQ	PRDO	Tue, Jan 9, 2007	25.08	25.50	24.99	25.19
2225	NASDAQ	PRDO	Mon, Jan 8, 2007	25.37	25.37	24.94	25.11
2224	NASDAQ	PRDO	Fri, Jan 5, 2007	25.06	25.35	24.71	25.31
2223	NASDAQ	PRDO	Thu, Jan 4, 2007	24.86	25.19	24.69	25.04
2222	NASDAQ	PRDO	Wed, Jan 3, 2007	24.41	25.23	24.36	25.03
2221	NASDAQ	PRDO	Fri, Dec 29, 2006	25.19	25.22	24.74	24.78
2220	NASDAQ	PRDO	Thu, Dec 28, 2006	25.12	25.20	24.91	25.14
2219	NASDAQ	PRDO	Wed, Dec 27, 2006	25.12	25.65	24.89	25.16
2218	NASDAQ	PRDO	Tue, Dec 26, 2006	24.93	25.15	24.71	25.12
2217	NASDAQ	PRDO	Fri, Dec 22, 2006	24.72	25.20	24.60	24.94
2216	NASDAQ	PRDO	Thu, Dec 21, 2006	24.91	24.99	24.45	24.74
2215	NASDAQ	PRDO	Wed, Dec 20, 2006	24.59	25.12	24.47	25.01
2214	NASDAQ	PRDO	Tue, Dec 19, 2006	24.56	24.72	24.40	24.53
2213	NASDAQ	PRDO	Mon, Dec 18, 2006	24.96	24.97	24.61	24.65
2212	NASDAQ	PRDO	Fri, Dec 15, 2006	25.12	25.40	24.76	24.97
2211	NASDAQ	PRDO	Thu, Dec 14, 2006	25.20	25.76	25.07	25.14
2210	NASDAQ	PRDO	Wed, Dec 13, 2006	26.15	26.16	25.05	25.14
2209	NASDAQ	PRDO	Tue, Dec 12, 2006	24.51	26.41	24.29	25.82
2208	NASDAQ	PRDO	Mon, Dec 11, 2006	25.68	26.30	25.50	25.89
2207	NASDAQ	PRDO	Fri, Dec 8, 2006	26.00	26.00	25.36	25.70
2206	NASDAQ	PRDO	Thu, Dec 7, 2006	26.39	26.80	25.54	25.85
2205	NASDAQ	PRDO	Wed, Dec 6, 2006	25.68	26.80	25.68	26.68
2204	NASDAQ	PRDO	Tue, Dec 5, 2006	26.00	26.27	25.56	25.61
2203	NASDAQ	PRDO	Mon, Dec 4, 2006	25.07	26.13	25.07	25.85
2202	NASDAQ	PRDO	Fri, Dec 1, 2006	25.22	25.62	24.55	25.18
2201	NASDAQ	PRDO	Thu, Nov 30, 2006	25.09	25.73	24.86	25.25
2200	NASDAQ	PRDO	Wed, Nov 29, 2006	25.42	25.76	24.65	24.99
2199	NASDAQ	PRDO	Tue, Nov 28, 2006	25.30	25.83	24.82	25.37
2198	NASDAQ	PRDO	Mon, Nov 27, 2006	26.07	26.44	25.27	25.33
2197	NASDAQ	PRDO	Fri, Nov 24, 2006	26.02	26.27	25.82	26.08
2196	NASDAQ	PRDO	Wed, Nov 22, 2006	26.00	26.48	25.74	26.13
2195	NASDAQ	PRDO	Tue, Nov 21, 2006	25.87	26.10	25.69	25.92
2194	NASDAQ	PRDO	Mon, Nov 20, 2006	25.89	26.30	25.78	25.92
2193	NASDAQ	PRDO	Fri, Nov 17, 2006	26.11	26.35	25.69	25.97
2192	NASDAQ	PRDO	Thu, Nov 16, 2006	26.00	26.38	25.67	26.11
2191	NASDAQ	PRDO	Wed, Nov 15, 2006	24.00	27.77	23.92	26.02
2190	NASDAQ	PRDO	Tue, Nov 14, 2006	23.20	24.20	23.10	24.12
2189	NASDAQ	PRDO	Mon, Nov 13, 2006	23.48	23.62	22.92	23.32
2188	NASDAQ	PRDO	Fri, Nov 10, 2006	23.88	23.95	23.33	23.47
2187	NASDAQ	PRDO	Thu, Nov 9, 2006	24.49	24.58	23.90	23.99
2186	NASDAQ	PRDO	Wed, Nov 8, 2006	23.16	25.29	23.16	24.36
2185	NASDAQ	PRDO	Tue, Nov 7, 2006	21.66	22.16	21.56	21.86
2184	NASDAQ	PRDO	Mon, Nov 6, 2006	21.66	21.91	21.40	21.55
2183	NASDAQ	PRDO	Fri, Nov 3, 2006	21.93	22.30	21.32	21.66
2182	NASDAQ	PRDO	Thu, Nov 2, 2006	21.93	22.42	21.93	22.22
2181	NASDAQ	PRDO	Wed, Nov 1, 2006	22.27	22.65	21.96	22.00
2180	NASDAQ	PRDO	Tue, Oct 31, 2006	21.53	22.31	21.50	22.28
2179	NASDAQ	PRDO	Mon, Oct 30, 2006	21.10	21.78	21.07	21.60
2178	NASDAQ	PRDO	Fri, Oct 27, 2006	21.08	21.20	20.93	21.05
2177	NASDAQ	PRDO	Thu, Oct 26, 2006	21.23	21.47	20.87	21.05
2176	NASDAQ	PRDO	Wed, Oct 25, 2006	21.02	21.31	20.71	21.04
2175	NASDAQ	PRDO	Tue, Oct 24, 2006	21.27	21.65	20.72	20.88
2174	NASDAQ	PRDO	Mon, Oct 23, 2006	21.99	22.33	21.71	21.76
2173	NASDAQ	PRDO	Fri, Oct 20, 2006	21.87	22.00	21.55	21.98
2172	NASDAQ	PRDO	Thu, Oct 19, 2006	21.90	22.06	21.64	21.94
2171	NASDAQ	PRDO	Wed, Oct 18, 2006	22.39	22.40	21.88	21.88
2170	NASDAQ	PRDO	Tue, Oct 17, 2006	23.86	23.89	22.91	23.01
2169	NASDAQ	PRDO	Mon, Oct 16, 2006	23.81	24.30	23.75	23.85
2168	NASDAQ	PRDO	Fri, Oct 13, 2006	23.39	23.79	23.35	23.53
2167	NASDAQ	PRDO	Thu, Oct 12, 2006	23.49	23.58	23.33	23.46
2166	NASDAQ	PRDO	Wed, Oct 11, 2006	23.23	23.76	23.00	23.41
2165	NASDAQ	PRDO	Tue, Oct 10, 2006	23.40	23.66	23.19	23.36
2164	NASDAQ	PRDO	Mon, Oct 9, 2006	23.18	23.30	22.81	23.30
2163	NASDAQ	PRDO	Fri, Oct 6, 2006	23.31	23.34	22.51	23.28
2162	NASDAQ	PRDO	Thu, Oct 5, 2006	23.05	23.41	22.83	23.30
2161	NASDAQ	PRDO	Wed, Oct 4, 2006	22.40	23.21	22.21	23.00
2160	NASDAQ	PRDO	Tue, Oct 3, 2006	22.32	22.74	22.16	22.49
2159	NASDAQ	PRDO	Mon, Oct 2, 2006	22.58	22.87	22.32	22.48
2158	NASDAQ	PRDO	Fri, Sep 29, 2006	22.45	22.74	21.82	22.49
2157	NASDAQ	PRDO	Thu, Sep 28, 2006	22.15	22.73	21.98	22.30
2156	NASDAQ	PRDO	Wed, Sep 27, 2006	23.40	23.78	21.70	22.14
2155	NASDAQ	PRDO	Tue, Sep 26, 2006	22.80	24.30	22.61	24.20
2154	NASDAQ	PRDO	Mon, Sep 25, 2006	21.65	21.66	20.90	21.15
2153	NASDAQ	PRDO	Fri, Sep 22, 2006	21.00	21.66	20.74	21.62
2152	NASDAQ	PRDO	Thu, Sep 21, 2006	20.67	21.12	20.39	21.05
2151	NASDAQ	PRDO	Wed, Sep 20, 2006	20.37	20.84	20.24	20.64
2150	NASDAQ	PRDO	Tue, Sep 19, 2006	20.46	20.64	20.05	20.20
2149	NASDAQ	PRDO	Mon, Sep 18, 2006	20.51	20.90	20.26	20.48
2148	NASDAQ	PRDO	Fri, Sep 15, 2006	20.02	20.71	19.95	20.52
2147	NASDAQ	PRDO	Thu, Sep 14, 2006	20.25	20.33	19.80	19.97
2146	NASDAQ	PRDO	Wed, Sep 13, 2006	20.09	20.64	20.09	20.39
2145	NASDAQ	PRDO	Tue, Sep 12, 2006	19.33	20.24	19.33	20.15
2144	NASDAQ	PRDO	Mon, Sep 11, 2006	18.84	19.35	18.76	19.24
2143	NASDAQ	PRDO	Fri, Sep 8, 2006	18.80	19.17	18.70	18.98
2142	NASDAQ	PRDO	Thu, Sep 7, 2006	19.91	20.01	19.32	19.33
2141	NASDAQ	PRDO	Wed, Sep 6, 2006	19.64	20.34	19.51	20.05
2140	NASDAQ	PRDO	Tue, Sep 5, 2006	19.76	20.00	19.50	19.74
2139	NASDAQ	PRDO	Fri, Sep 1, 2006	19.14	19.84	19.01	19.76
2138	NASDAQ	PRDO	Thu, Aug 31, 2006	19.40	19.49	19.00	19.15
2137	NASDAQ	PRDO	Wed, Aug 30, 2006	18.92	19.58	18.86	19.52
2136	NASDAQ	PRDO	Tue, Aug 29, 2006	18.58	18.93	18.45	18.84
2135	NASDAQ	PRDO	Mon, Aug 28, 2006	18.22	18.79	18.00	18.62
2134	NASDAQ	PRDO	Fri, Aug 25, 2006	17.73	18.38	17.60	18.31
2133	NASDAQ	PRDO	Thu, Aug 24, 2006	18.10	18.25	17.61	17.80
2132	NASDAQ	PRDO	Wed, Aug 23, 2006	18.15	18.47	17.89	18.00
2131	NASDAQ	PRDO	Tue, Aug 22, 2006	18.40	18.71	18.17	18.24
2130	NASDAQ	PRDO	Mon, Aug 21, 2006	18.69	18.69	18.46	18.50
2129	NASDAQ	PRDO	Fri, Aug 18, 2006	19.00	19.11	18.65	18.71
2128	NASDAQ	PRDO	Thu, Aug 17, 2006	19.11	19.21	18.89	19.00
2127	NASDAQ	PRDO	Wed, Aug 16, 2006	18.95	19.00	18.66	18.99
2126	NASDAQ	PRDO	Tue, Aug 15, 2006	19.04	19.25	18.30	18.79
2125	NASDAQ	PRDO	Mon, Aug 14, 2006	18.96	19.04	18.68	18.87
2124	NASDAQ	PRDO	Fri, Aug 11, 2006	19.23	19.25	18.67	18.81
2123	NASDAQ	PRDO	Thu, Aug 10, 2006	19.12	19.30	18.71	19.21
2122	NASDAQ	PRDO	Wed, Aug 9, 2006	19.25	19.30	18.60	18.64
2121	NASDAQ	PRDO	Tue, Aug 8, 2006	19.25	19.54	18.80	19.07
2120	NASDAQ	PRDO	Mon, Aug 7, 2006	19.69	19.75	18.70	19.24
2119	NASDAQ	PRDO	Fri, Aug 4, 2006	22.17	22.35	19.48	19.50
2118	NASDAQ	PRDO	Thu, Aug 3, 2006	28.10	28.20	27.55	27.58
2117	NASDAQ	PRDO	Wed, Aug 2, 2006	28.42	28.42	28.07	28.22
2116	NASDAQ	PRDO	Tue, Aug 1, 2006	28.19	28.66	28.00	28.19
2115	NASDAQ	PRDO	Mon, Jul 31, 2006	28.85	29.05	28.46	28.46
2114	NASDAQ	PRDO	Fri, Jul 28, 2006	28.76	29.26	28.74	28.92
2113	NASDAQ	PRDO	Thu, Jul 27, 2006	29.10	29.48	28.62	28.70
2112	NASDAQ	PRDO	Wed, Jul 26, 2006	29.32	29.33	28.70	28.92
2111	NASDAQ	PRDO	Tue, Jul 25, 2006	29.48	29.88	29.00	29.42
2110	NASDAQ	PRDO	Mon, Jul 24, 2006	29.29	29.66	28.77	29.50
2109	NASDAQ	PRDO	Fri, Jul 21, 2006	28.99	29.35	28.40	29.15
2108	NASDAQ	PRDO	Thu, Jul 20, 2006	29.34	29.49	29.05	29.09
2107	NASDAQ	PRDO	Wed, Jul 19, 2006	28.55	29.56	28.55	29.35
2106	NASDAQ	PRDO	Tue, Jul 18, 2006	28.39	29.10	28.37	28.60
2105	NASDAQ	PRDO	Mon, Jul 17, 2006	28.61	28.93	28.39	28.54
2104	NASDAQ	PRDO	Fri, Jul 14, 2006	28.41	28.68	28.31	28.60
2103	NASDAQ	PRDO	Thu, Jul 13, 2006	27.98	28.67	27.96	28.47
2102	NASDAQ	PRDO	Wed, Jul 12, 2006	28.59	28.63	27.92	28.05
2101	NASDAQ	PRDO	Tue, Jul 11, 2006	28.46	28.75	28.39	28.72
2100	NASDAQ	PRDO	Mon, Jul 10, 2006	29.15	29.17	28.39	28.46
2099	NASDAQ	PRDO	Fri, Jul 7, 2006	29.50	29.69	28.94	29.03
2098	NASDAQ	PRDO	Thu, Jul 6, 2006	29.56	29.70	29.50	29.56
2097	NASDAQ	PRDO	Wed, Jul 5, 2006	29.77	29.80	29.50	29.59
2096	NASDAQ	PRDO	Mon, Jul 3, 2006	29.57	29.90	29.57	29.82
2095	NASDAQ	PRDO	Fri, Jun 30, 2006	29.85	29.95	29.61	29.89
2094	NASDAQ	PRDO	Thu, Jun 29, 2006	29.80	30.15	29.72	30.07
2093	NASDAQ	PRDO	Wed, Jun 28, 2006	30.84	30.84	29.41	29.57
2092	NASDAQ	PRDO	Tue, Jun 27, 2006	31.28	31.30	30.41	30.68
2091	NASDAQ	PRDO	Mon, Jun 26, 2006	31.41	31.60	30.86	31.08
2090	NASDAQ	PRDO	Fri, Jun 23, 2006	30.96	31.65	30.96	31.45
2089	NASDAQ	PRDO	Thu, Jun 22, 2006	31.29	31.56	31.11	31.15
2088	NASDAQ	PRDO	Wed, Jun 21, 2006	30.77	31.51	30.60	31.15
2087	NASDAQ	PRDO	Tue, Jun 20, 2006	30.30	31.26	30.28	30.90
2086	NASDAQ	PRDO	Mon, Jun 19, 2006	31.37	31.45	30.44	30.46
2085	NASDAQ	PRDO	Fri, Jun 16, 2006	31.02	31.14	30.29	30.50
2084	NASDAQ	PRDO	Thu, Jun 15, 2006	31.15	31.25	30.78	30.99
2083	NASDAQ	PRDO	Wed, Jun 14, 2006	31.50	31.72	30.91	31.11
2082	NASDAQ	PRDO	Tue, Jun 13, 2006	32.64	33.08	31.47	31.59
2081	NASDAQ	PRDO	Mon, Jun 12, 2006	32.82	33.12	32.70	32.85
2080	NASDAQ	PRDO	Fri, Jun 9, 2006	32.95	33.28	32.86	32.94
2079	NASDAQ	PRDO	Thu, Jun 8, 2006	32.28	33.20	32.20	32.98
2078	NASDAQ	PRDO	Wed, Jun 7, 2006	32.17	32.76	32.16	32.42
2077	NASDAQ	PRDO	Tue, Jun 6, 2006	32.12	32.42	31.99	32.20
2076	NASDAQ	PRDO	Mon, Jun 5, 2006	32.22	32.55	32.14	32.17
2075	NASDAQ	PRDO	Fri, Jun 2, 2006	32.52	32.99	32.30	32.50
2074	NASDAQ	PRDO	Thu, Jun 1, 2006	30.84	32.74	30.81	32.40
2073	NASDAQ	PRDO	Wed, May 31, 2006	32.61	33.25	32.58	32.59
2072	NASDAQ	PRDO	Tue, May 30, 2006	33.02	33.21	32.40	32.58
2071	NASDAQ	PRDO	Fri, May 26, 2006	33.41	33.43	32.78	33.19
2070	NASDAQ	PRDO	Thu, May 25, 2006	33.03	33.88	33.03	33.38
2069	NASDAQ	PRDO	Wed, May 24, 2006	31.20	32.57	30.99	32.19
2068	NASDAQ	PRDO	Tue, May 23, 2006	31.43	31.53	31.00	31.39
2067	NASDAQ	PRDO	Mon, May 22, 2006	30.76	31.49	30.71	31.25
2066	NASDAQ	PRDO	Fri, May 19, 2006	30.89	31.08	30.52	30.93
2065	NASDAQ	PRDO	Thu, May 18, 2006	31.47	31.59	30.79	30.80
2064	NASDAQ	PRDO	Wed, May 17, 2006	31.43	31.84	31.23	31.30
2063	NASDAQ	PRDO	Tue, May 16, 2006	31.74	32.03	31.55	31.63
2062	NASDAQ	PRDO	Mon, May 15, 2006	31.48	31.99	31.08	31.90
2061	NASDAQ	PRDO	Fri, May 12, 2006	31.82	31.91	31.37	31.62
2060	NASDAQ	PRDO	Thu, May 11, 2006	32.26	32.45	31.79	31.79
2059	NASDAQ	PRDO	Wed, May 10, 2006	32.47	32.70	32.22	32.26
2058	NASDAQ	PRDO	Tue, May 9, 2006	32.23	32.82	32.05	32.57
2057	NASDAQ	PRDO	Mon, May 8, 2006	31.81	32.55	31.80	32.43
2056	NASDAQ	PRDO	Fri, May 5, 2006	32.01	32.41	31.45	31.86
2055	NASDAQ	PRDO	Thu, May 4, 2006	33.55	34.10	31.62	31.73
2054	NASDAQ	PRDO	Wed, May 3, 2006	36.79	37.14	36.31	36.59
2053	NASDAQ	PRDO	Tue, May 2, 2006	36.73	37.00	36.50	36.90
2052	NASDAQ	PRDO	Mon, May 1, 2006	36.85	37.10	36.61	36.78
2051	NASDAQ	PRDO	Fri, Apr 28, 2006	36.89	37.26	36.85	36.87
2050	NASDAQ	PRDO	Thu, Apr 27, 2006	36.73	37.60	36.55	37.11
2049	NASDAQ	PRDO	Wed, Apr 26, 2006	36.70	37.05	36.44	36.75
2048	NASDAQ	PRDO	Tue, Apr 25, 2006	37.33	37.33	36.73	36.74
2047	NASDAQ	PRDO	Mon, Apr 24, 2006	37.36	37.46	37.10	37.17
2046	NASDAQ	PRDO	Fri, Apr 21, 2006	38.06	38.60	37.00	37.43
2045	NASDAQ	PRDO	Thu, Apr 20, 2006	38.25	38.63	37.74	37.98
2044	NASDAQ	PRDO	Wed, Apr 19, 2006	38.30	38.99	37.90	38.33
2043	NASDAQ	PRDO	Tue, Apr 18, 2006	38.52	38.52	38.05	38.31
2042	NASDAQ	PRDO	Mon, Apr 17, 2006	38.80	39.44	38.17	38.33
2041	NASDAQ	PRDO	Thu, Apr 13, 2006	39.40	39.55	38.46	38.55
2040	NASDAQ	PRDO	Wed, Apr 12, 2006	39.40	39.76	39.09	39.37
2039	NASDAQ	PRDO	Tue, Apr 11, 2006	40.27	40.63	39.41	39.60
2038	NASDAQ	PRDO	Mon, Apr 10, 2006	40.20	40.90	40.06	40.12
2037	NASDAQ	PRDO	Fri, Apr 7, 2006	40.61	41.03	39.92	40.01
2036	NASDAQ	PRDO	Thu, Apr 6, 2006	40.83	41.74	40.40	40.65
2035	NASDAQ	PRDO	Wed, Apr 5, 2006	39.40	42.59	39.10	41.70
2034	NASDAQ	PRDO	Tue, Apr 4, 2006	37.10	37.30	36.51	36.66
2033	NASDAQ	PRDO	Mon, Apr 3, 2006	37.75	37.76	36.47	37.10
2032	NASDAQ	PRDO	Fri, Mar 31, 2006	37.10	37.74	36.86	37.73
2031	NASDAQ	PRDO	Thu, Mar 30, 2006	36.71	37.19	36.53	37.11
2030	NASDAQ	PRDO	Wed, Mar 29, 2006	36.32	36.80	36.23	36.54
2029	NASDAQ	PRDO	Tue, Mar 28, 2006	36.69	36.85	35.92	36.23
2028	NASDAQ	PRDO	Mon, Mar 27, 2006	36.13	36.73	36.10	36.47
2027	NASDAQ	PRDO	Fri, Mar 24, 2006	36.82	36.95	36.00	36.13
2026	NASDAQ	PRDO	Thu, Mar 23, 2006	36.45	37.16	36.20	36.82
2025	NASDAQ	PRDO	Wed, Mar 22, 2006	36.22	36.71	36.06	36.63
2024	NASDAQ	PRDO	Tue, Mar 21, 2006	36.31	37.05	36.28	36.39
2023	NASDAQ	PRDO	Mon, Mar 20, 2006	35.56	36.34	35.55	36.31
2022	NASDAQ	PRDO	Fri, Mar 17, 2006	35.42	35.76	35.24	35.71
2021	NASDAQ	PRDO	Thu, Mar 16, 2006	35.40	35.74	35.19	35.42
2020	NASDAQ	PRDO	Wed, Mar 15, 2006	34.92	35.35	34.43	35.21
2019	NASDAQ	PRDO	Tue, Mar 14, 2006	34.59	35.24	34.48	35.07
2018	NASDAQ	PRDO	Mon, Mar 13, 2006	34.60	35.16	34.50	34.76
2017	NASDAQ	PRDO	Fri, Mar 10, 2006	34.20	34.73	34.02	34.49
2016	NASDAQ	PRDO	Thu, Mar 9, 2006	34.03	34.28	33.87	34.13
2015	NASDAQ	PRDO	Wed, Mar 8, 2006	34.03	34.21	33.80	34.07
2014	NASDAQ	PRDO	Tue, Mar 7, 2006	34.16	34.71	33.70	34.22
2013	NASDAQ	PRDO	Mon, Mar 6, 2006	35.43	35.43	33.80	34.42
2012	NASDAQ	PRDO	Fri, Mar 3, 2006	33.06	33.70	33.01	33.55
2011	NASDAQ	PRDO	Thu, Mar 2, 2006	33.17	33.42	32.91	33.30
2010	NASDAQ	PRDO	Wed, Mar 1, 2006	32.95	33.46	32.72	33.33
2009	NASDAQ	PRDO	Tue, Feb 28, 2006	32.90	33.87	32.49	32.84
2008	NASDAQ	PRDO	Mon, Feb 27, 2006	34.00	34.30	33.83	33.90
2007	NASDAQ	PRDO	Fri, Feb 24, 2006	32.93	33.96	32.92	33.80
2006	NASDAQ	PRDO	Thu, Feb 23, 2006	32.90	33.15	32.81	32.98
2005	NASDAQ	PRDO	Wed, Feb 22, 2006	32.92	33.37	32.92	33.01
2004	NASDAQ	PRDO	Tue, Feb 21, 2006	33.73	34.00	32.87	32.92
2003	NASDAQ	PRDO	Fri, Feb 17, 2006	33.78	34.26	33.52	33.87
2002	NASDAQ	PRDO	Thu, Feb 16, 2006	33.38	34.17	33.28	33.75
2001	NASDAQ	PRDO	Wed, Feb 15, 2006	34.86	34.97	34.44	34.51
2000	NASDAQ	PRDO	Tue, Feb 14, 2006	34.13	35.19	34.11	34.86
1999	NASDAQ	PRDO	Mon, Feb 13, 2006	35.23	35.23	34.12	34.38
1998	NASDAQ	PRDO	Fri, Feb 10, 2006	35.29	35.43	34.35	35.10
1997	NASDAQ	PRDO	Thu, Feb 9, 2006	34.86	35.47	34.86	35.46
1996	NASDAQ	PRDO	Wed, Feb 8, 2006	33.90	35.00	33.63	34.92
1995	NASDAQ	PRDO	Tue, Feb 7, 2006	33.79	33.96	33.55	33.82
1994	NASDAQ	PRDO	Mon, Feb 6, 2006	33.90	33.90	33.05	33.79
1993	NASDAQ	PRDO	Fri, Feb 3, 2006	33.12	33.99	33.11	33.90
1992	NASDAQ	PRDO	Thu, Feb 2, 2006	32.98	33.30	32.50	33.12
1991	NASDAQ	PRDO	Wed, Feb 1, 2006	32.26	33.30	32.04	33.15
1990	NASDAQ	PRDO	Tue, Jan 31, 2006	32.08	32.60	32.01	32.49
1989	NASDAQ	PRDO	Mon, Jan 30, 2006	31.91	32.17	31.69	32.11
1988	NASDAQ	PRDO	Fri, Jan 27, 2006	31.61	32.37	31.59	32.00
1987	NASDAQ	PRDO	Thu, Jan 26, 2006	30.75	31.72	30.75	31.59
1986	NASDAQ	PRDO	Wed, Jan 25, 2006	30.70	30.75	30.41	30.62
1985	NASDAQ	PRDO	Tue, Jan 24, 2006	30.50	30.93	30.24	30.56
1984	NASDAQ	PRDO	Mon, Jan 23, 2006	30.69	30.79	30.33	30.49
1983	NASDAQ	PRDO	Fri, Jan 20, 2006	31.18	31.28	30.37	30.61
1982	NASDAQ	PRDO	Thu, Jan 19, 2006	31.37	31.47	31.00	31.29
1981	NASDAQ	PRDO	Wed, Jan 18, 2006	31.29	31.65	30.92	31.14
1980	NASDAQ	PRDO	Tue, Jan 17, 2006	31.34	31.54	30.88	31.42
1979	NASDAQ	PRDO	Fri, Jan 13, 2006	31.82	31.97	31.13	31.26
1978	NASDAQ	PRDO	Thu, Jan 12, 2006	32.04	32.15	31.54	31.60
1977	NASDAQ	PRDO	Wed, Jan 11, 2006	32.75	33.16	31.88	32.06
1976	NASDAQ	PRDO	Tue, Jan 10, 2006	32.29	32.75	32.26	32.71
1975	NASDAQ	PRDO	Mon, Jan 9, 2006	32.65	32.70	32.27	32.41
1974	NASDAQ	PRDO	Fri, Jan 6, 2006	33.67	33.67	32.45	32.81
1973	NASDAQ	PRDO	Thu, Jan 5, 2006	32.56	33.57	32.27	33.39
1972	NASDAQ	PRDO	Wed, Jan 4, 2006	32.86	33.02	32.28	32.43
1971	NASDAQ	PRDO	Tue, Jan 3, 2006	33.00	33.41	31.80	32.96
1970	NASDAQ	PRDO	Fri, Dec 30, 2005	33.29	33.89	33.11	33.72
1969	NASDAQ	PRDO	Thu, Dec 29, 2005	33.65	33.90	33.19	33.50
1968	NASDAQ	PRDO	Wed, Dec 28, 2005	32.95	33.68	32.75	33.65
1967	NASDAQ	PRDO	Tue, Dec 27, 2005	33.29	33.40	32.77	32.77
1966	NASDAQ	PRDO	Fri, Dec 23, 2005	33.12	33.88	32.99	33.56
1965	NASDAQ	PRDO	Thu, Dec 22, 2005	32.80	33.15	32.54	32.91
1964	NASDAQ	PRDO	Wed, Dec 21, 2005	32.75	33.08	32.55	32.85
1963	NASDAQ	PRDO	Tue, Dec 20, 2005	32.47	32.88	32.39	32.57
1962	NASDAQ	PRDO	Mon, Dec 19, 2005	32.53	32.65	32.30	32.49
1961	NASDAQ	PRDO	Fri, Dec 16, 2005	32.56	32.86	32.21	32.47
1960	NASDAQ	PRDO	Thu, Dec 15, 2005	32.57	32.95	32.29	32.63
1959	NASDAQ	PRDO	Wed, Dec 14, 2005	32.35	33.00	32.32	32.65
1958	NASDAQ	PRDO	Tue, Dec 13, 2005	32.88	33.11	31.78	32.53
1957	NASDAQ	PRDO	Mon, Dec 12, 2005	34.80	34.80	32.95	33.09
1956	NASDAQ	PRDO	Fri, Dec 9, 2005	35.45	35.63	34.21	34.64
1955	NASDAQ	PRDO	Thu, Dec 8, 2005	35.67	38.37	35.45	35.55
1954	NASDAQ	PRDO	Wed, Dec 7, 2005	34.73	35.89	34.51	35.70
1953	NASDAQ	PRDO	Tue, Dec 6, 2005	37.46	37.70	34.05	34.22
1952	NASDAQ	PRDO	Mon, Dec 5, 2005	38.66	39.30	38.30	38.84
1951	NASDAQ	PRDO	Fri, Dec 2, 2005	38.28	38.79	38.13	38.44
1950	NASDAQ	PRDO	Thu, Dec 1, 2005	37.53	38.88	37.53	38.49
1949	NASDAQ	PRDO	Wed, Nov 30, 2005	36.86	37.43	36.64	37.30
1948	NASDAQ	PRDO	Tue, Nov 29, 2005	36.55	36.99	36.53	36.83
1947	NASDAQ	PRDO	Mon, Nov 28, 2005	36.85	36.85	36.38	36.43
1946	NASDAQ	PRDO	Fri, Nov 25, 2005	36.24	36.87	36.05	36.79
1945	NASDAQ	PRDO	Wed, Nov 23, 2005	35.67	36.28	35.51	36.03
1944	NASDAQ	PRDO	Tue, Nov 22, 2005	35.73	35.99	35.32	35.62
1943	NASDAQ	PRDO	Mon, Nov 21, 2005	34.99	35.98	34.97	35.97
1942	NASDAQ	PRDO	Fri, Nov 18, 2005	35.44	35.46	34.90	35.15
1941	NASDAQ	PRDO	Thu, Nov 17, 2005	34.12	35.11	34.07	35.11
1940	NASDAQ	PRDO	Wed, Nov 16, 2005	34.81	35.10	34.07	34.15
1939	NASDAQ	PRDO	Tue, Nov 15, 2005	34.88	35.12	34.62	34.81
1938	NASDAQ	PRDO	Mon, Nov 14, 2005	35.86	35.87	34.75	35.07
1937	NASDAQ	PRDO	Fri, Nov 11, 2005	35.99	36.02	35.43	35.57
1936	NASDAQ	PRDO	Thu, Nov 10, 2005	34.75	36.00	34.51	35.95
1935	NASDAQ	PRDO	Wed, Nov 9, 2005	35.05	35.18	34.60	34.91
1934	NASDAQ	PRDO	Tue, Nov 8, 2005	35.66	35.72	34.53	35.12
1933	NASDAQ	PRDO	Mon, Nov 7, 2005	34.13	34.92	33.75	34.82
1932	NASDAQ	PRDO	Fri, Nov 4, 2005	33.98	34.19	33.50	33.80
1931	NASDAQ	PRDO	Thu, Nov 3, 2005	33.96	35.04	33.21	34.14
1930	NASDAQ	PRDO	Wed, Nov 2, 2005	35.18	37.13	34.98	36.18
1929	NASDAQ	PRDO	Tue, Nov 1, 2005	35.72	35.83	35.00	35.09
1928	NASDAQ	PRDO	Mon, Oct 31, 2005	35.25	36.21	35.00	35.59
1927	NASDAQ	PRDO	Fri, Oct 28, 2005	34.05	35.38	34.05	35.30
1926	NASDAQ	PRDO	Thu, Oct 27, 2005	34.56	34.85	33.96	33.98
1925	NASDAQ	PRDO	Wed, Oct 26, 2005	34.88	35.16	34.35	34.59
1924	NASDAQ	PRDO	Tue, Oct 25, 2005	34.80	35.16	34.56	35.00
1923	NASDAQ	PRDO	Mon, Oct 24, 2005	35.19	35.33	34.58	34.93
1922	NASDAQ	PRDO	Fri, Oct 21, 2005	34.59	35.74	34.41	35.05
1921	NASDAQ	PRDO	Thu, Oct 20, 2005	34.77	34.78	33.73	34.35
1920	NASDAQ	PRDO	Wed, Oct 19, 2005	33.99	35.00	33.03	34.60
1919	NASDAQ	PRDO	Tue, Oct 18, 2005	34.19	34.45	33.86	34.19
1918	NASDAQ	PRDO	Mon, Oct 17, 2005	33.85	34.41	33.62	34.39
1917	NASDAQ	PRDO	Fri, Oct 14, 2005	33.74	34.19	33.00	33.95
1916	NASDAQ	PRDO	Thu, Oct 13, 2005	33.31	34.36	33.24	33.84
1915	NASDAQ	PRDO	Wed, Oct 12, 2005	34.00	34.50	33.16	33.49
1914	NASDAQ	PRDO	Tue, Oct 11, 2005	34.21	34.41	34.00	34.05
1913	NASDAQ	PRDO	Mon, Oct 10, 2005	34.08	34.21	33.53	34.20
1912	NASDAQ	PRDO	Fri, Oct 7, 2005	33.65	34.56	33.36	34.36
1911	NASDAQ	PRDO	Thu, Oct 6, 2005	33.39	34.00	33.00	33.60
1910	NASDAQ	PRDO	Wed, Oct 5, 2005	35.02	35.30	34.13	34.17
1909	NASDAQ	PRDO	Tue, Oct 4, 2005	36.11	36.11	34.93	35.19
1908	NASDAQ	PRDO	Mon, Oct 3, 2005	35.80	36.43	35.72	35.89
1907	NASDAQ	PRDO	Fri, Sep 30, 2005	35.98	36.34	35.30	35.56
1906	NASDAQ	PRDO	Thu, Sep 29, 2005	36.52	36.59	35.63	36.09
1905	NASDAQ	PRDO	Wed, Sep 28, 2005	37.18	37.45	36.33	36.53
1904	NASDAQ	PRDO	Tue, Sep 27, 2005	37.15	37.47	36.88	37.20
1903	NASDAQ	PRDO	Mon, Sep 26, 2005	36.61	37.24	36.37	37.04
1902	NASDAQ	PRDO	Fri, Sep 23, 2005	35.95	37.03	35.60	36.50
1901	NASDAQ	PRDO	Thu, Sep 22, 2005	35.40	36.19	35.40	36.04
1900	NASDAQ	PRDO	Wed, Sep 21, 2005	36.69	36.69	35.40	35.58
1899	NASDAQ	PRDO	Tue, Sep 20, 2005	37.85	37.85	36.12	36.55
1898	NASDAQ	PRDO	Mon, Sep 19, 2005	39.56	39.70	37.30	37.49
1897	NASDAQ	PRDO	Fri, Sep 16, 2005	38.74	40.00	38.65	39.72
1896	NASDAQ	PRDO	Thu, Sep 15, 2005	38.64	39.34	38.60	38.92
1895	NASDAQ	PRDO	Wed, Sep 14, 2005	39.49	39.70	38.71	38.74
1894	NASDAQ	PRDO	Tue, Sep 13, 2005	39.51	39.99	39.31	39.62
1893	NASDAQ	PRDO	Mon, Sep 12, 2005	39.70	39.88	39.29	39.78
1892	NASDAQ	PRDO	Fri, Sep 9, 2005	38.99	39.72	38.88	39.53
1891	NASDAQ	PRDO	Thu, Sep 8, 2005	39.08	39.78	38.72	38.98
1890	NASDAQ	PRDO	Wed, Sep 7, 2005	39.11	39.44	38.93	39.27
1889	NASDAQ	PRDO	Tue, Sep 6, 2005	39.21	39.59	39.00	39.12
1888	NASDAQ	PRDO	Fri, Sep 2, 2005	39.48	39.98	39.00	39.20
1887	NASDAQ	PRDO	Thu, Sep 1, 2005	39.20	39.69	38.85	39.49
1886	NASDAQ	PRDO	Wed, Aug 31, 2005	38.76	39.26	38.44	39.20
1885	NASDAQ	PRDO	Tue, Aug 30, 2005	38.72	38.92	38.38	38.62
1884	NASDAQ	PRDO	Mon, Aug 29, 2005	37.69	38.95	37.68	38.81
1883	NASDAQ	PRDO	Fri, Aug 26, 2005	38.10	38.30	37.65	38.00
1882	NASDAQ	PRDO	Thu, Aug 25, 2005	38.17	38.27	37.54	38.15
1881	NASDAQ	PRDO	Wed, Aug 24, 2005	37.97	38.60	37.74	38.10
1880	NASDAQ	PRDO	Tue, Aug 23, 2005	37.59	38.02	37.48	37.96
1879	NASDAQ	PRDO	Mon, Aug 22, 2005	37.79	37.96	37.00	37.76
1878	NASDAQ	PRDO	Fri, Aug 19, 2005	37.95	37.95	37.55	37.70
1877	NASDAQ	PRDO	Thu, Aug 18, 2005	37.62	37.95	37.42	37.70
1876	NASDAQ	PRDO	Wed, Aug 17, 2005	38.18	38.58	37.86	37.94
1875	NASDAQ	PRDO	Tue, Aug 16, 2005	38.09	38.46	38.05	38.28
1874	NASDAQ	PRDO	Mon, Aug 15, 2005	37.50	38.60	37.44	38.45
1873	NASDAQ	PRDO	Fri, Aug 12, 2005	38.20	38.23	37.60	37.87
1872	NASDAQ	PRDO	Thu, Aug 11, 2005	37.55	38.42	37.53	38.08
1871	NASDAQ	PRDO	Wed, Aug 10, 2005	37.75	38.00	37.50	37.72
1870	NASDAQ	PRDO	Tue, Aug 9, 2005	37.73	37.84	37.48	37.71
1869	NASDAQ	PRDO	Mon, Aug 8, 2005	37.69	38.00	37.38	37.73
1868	NASDAQ	PRDO	Fri, Aug 5, 2005	37.34	37.61	37.00	37.52
1867	NASDAQ	PRDO	Thu, Aug 4, 2005	37.41	37.76	37.05	37.31
1866	NASDAQ	PRDO	Wed, Aug 3, 2005	37.49	37.81	37.01	37.76
1865	NASDAQ	PRDO	Tue, Aug 2, 2005	37.32	38.08	36.25	37.53
1864	NASDAQ	PRDO	Mon, Aug 1, 2005	38.89	40.15	38.75	39.12
1863	NASDAQ	PRDO	Fri, Jul 29, 2005	38.95	39.00	38.31	38.79
1862	NASDAQ	PRDO	Thu, Jul 28, 2005	37.72	39.53	37.62	38.96
1861	NASDAQ	PRDO	Wed, Jul 27, 2005	36.69	37.81	36.49	37.55
1860	NASDAQ	PRDO	Tue, Jul 26, 2005	35.77	36.70	35.68	36.47
1859	NASDAQ	PRDO	Mon, Jul 25, 2005	36.97	36.97	35.57	35.91
1858	NASDAQ	PRDO	Fri, Jul 22, 2005	37.45	37.49	36.35	36.88
1857	NASDAQ	PRDO	Thu, Jul 21, 2005	37.64	37.73	36.87	37.31
1856	NASDAQ	PRDO	Wed, Jul 20, 2005	38.52	38.53	37.53	37.80
1855	NASDAQ	PRDO	Tue, Jul 19, 2005	41.46	41.50	37.15	37.94
1854	NASDAQ	PRDO	Mon, Jul 18, 2005	40.96	41.50	40.69	41.11
1853	NASDAQ	PRDO	Fri, Jul 15, 2005	40.40	40.67	39.86	40.60
1852	NASDAQ	PRDO	Thu, Jul 14, 2005	40.16	40.25	39.35	39.88
1851	NASDAQ	PRDO	Wed, Jul 13, 2005	38.86	40.15	38.58	39.96
1850	NASDAQ	PRDO	Tue, Jul 12, 2005	38.54	39.00	38.35	38.74
1849	NASDAQ	PRDO	Mon, Jul 11, 2005	38.70	39.16	38.52	38.79
1848	NASDAQ	PRDO	Fri, Jul 8, 2005	38.15	38.80	37.62	38.40
1847	NASDAQ	PRDO	Thu, Jul 7, 2005	37.37	38.43	37.14	37.83
1846	NASDAQ	PRDO	Wed, Jul 6, 2005	38.49	38.55	37.40	37.76
1845	NASDAQ	PRDO	Tue, Jul 5, 2005	37.69	38.45	37.44	38.28
1844	NASDAQ	PRDO	Fri, Jul 1, 2005	36.54	37.98	36.51	37.69
1843	NASDAQ	PRDO	Thu, Jun 30, 2005	37.29	37.58	36.00	36.61
1842	NASDAQ	PRDO	Wed, Jun 29, 2005	38.54	39.58	36.72	37.27
1841	NASDAQ	PRDO	Tue, Jun 28, 2005	37.75	38.67	37.25	38.51
1840	NASDAQ	PRDO	Mon, Jun 27, 2005	37.21	38.96	37.20	38.36
1839	NASDAQ	PRDO	Fri, Jun 24, 2005	36.39	36.79	36.00	36.34
1838	NASDAQ	PRDO	Thu, Jun 23, 2005	35.80	37.19	35.30	36.59
1837	NASDAQ	PRDO	Wed, Jun 22, 2005	37.87	37.91	36.94	37.20
1836	NASDAQ	PRDO	Tue, Jun 21, 2005	37.28	38.30	36.95	37.60
1835	NASDAQ	PRDO	Mon, Jun 20, 2005	37.18	37.35	36.45	36.98
1834	NASDAQ	PRDO	Fri, Jun 17, 2005	37.88	38.15	37.07	37.40
1833	NASDAQ	PRDO	Thu, Jun 16, 2005	37.75	38.23	37.34	37.53
1832	NASDAQ	PRDO	Wed, Jun 15, 2005	39.38	39.43	37.20	37.98
1831	NASDAQ	PRDO	Tue, Jun 14, 2005	38.82	39.60	38.82	39.23
1830	NASDAQ	PRDO	Mon, Jun 13, 2005	38.59	39.35	38.11	38.99
1829	NASDAQ	PRDO	Fri, Jun 10, 2005	38.99	39.09	37.86	38.47
1828	NASDAQ	PRDO	Thu, Jun 9, 2005	36.33	39.20	35.99	38.90
1827	NASDAQ	PRDO	Wed, Jun 8, 2005	36.25	36.71	35.90	36.28
1826	NASDAQ	PRDO	Tue, Jun 7, 2005	35.54	36.80	35.22	36.31
1825	NASDAQ	PRDO	Mon, Jun 6, 2005	35.00	35.58	34.71	35.45
1824	NASDAQ	PRDO	Fri, Jun 3, 2005	35.46	35.46	34.47	34.82
1823	NASDAQ	PRDO	Thu, Jun 2, 2005	35.21	35.59	34.78	35.44
1822	NASDAQ	PRDO	Wed, Jun 1, 2005	34.56	35.47	34.55	35.29
1821	NASDAQ	PRDO	Tue, May 31, 2005	35.08	35.08	34.54	34.67
1820	NASDAQ	PRDO	Fri, May 27, 2005	35.10	35.10	34.90	34.97
1819	NASDAQ	PRDO	Thu, May 26, 2005	34.55	35.04	34.55	35.00
1818	NASDAQ	PRDO	Wed, May 25, 2005	34.99	34.99	33.87	34.39
1817	NASDAQ	PRDO	Tue, May 24, 2005	35.09	35.27	34.80	34.99
1816	NASDAQ	PRDO	Mon, May 23, 2005	35.24	35.53	34.79	35.14
1815	NASDAQ	PRDO	Fri, May 20, 2005	33.50	34.70	33.33	34.70
1814	NASDAQ	PRDO	Thu, May 19, 2005	33.05	33.48	32.65	33.45
1813	NASDAQ	PRDO	Wed, May 18, 2005	31.96	33.07	31.70	32.86
1812	NASDAQ	PRDO	Tue, May 17, 2005	31.90	32.14	31.64	31.90
1811	NASDAQ	PRDO	Mon, May 16, 2005	32.61	32.62	31.50	31.94
1810	NASDAQ	PRDO	Fri, May 13, 2005	32.66	32.89	32.15	32.79
1809	NASDAQ	PRDO	Thu, May 12, 2005	33.25	33.47	32.50	32.65
1808	NASDAQ	PRDO	Wed, May 11, 2005	33.01	33.50	32.45	33.30
1807	NASDAQ	PRDO	Tue, May 10, 2005	32.05	33.36	31.90	32.79
1806	NASDAQ	PRDO	Mon, May 9, 2005	30.93	33.00	30.80	32.70
1805	NASDAQ	PRDO	Fri, May 6, 2005	31.32	31.38	30.72	30.79
1804	NASDAQ	PRDO	Thu, May 5, 2005	29.82	31.41	29.60	31.32
1803	NASDAQ	PRDO	Wed, May 4, 2005	29.20	29.80	28.73	29.60
1802	NASDAQ	PRDO	Tue, May 3, 2005	33.80	33.85	29.01	29.02
1801	NASDAQ	PRDO	Mon, May 2, 2005	31.56	32.82	31.22	32.15
1800	NASDAQ	PRDO	Fri, Apr 29, 2005	32.61	32.88	31.29	31.44
1799	NASDAQ	PRDO	Thu, Apr 28, 2005	33.32	33.32	32.21	32.46
1798	NASDAQ	PRDO	Wed, Apr 27, 2005	33.00	34.02	32.55	33.37
1797	NASDAQ	PRDO	Tue, Apr 26, 2005	34.21	34.43	33.78	33.86
1796	NASDAQ	PRDO	Mon, Apr 25, 2005	33.33	34.45	32.96	34.10
1795	NASDAQ	PRDO	Fri, Apr 22, 2005	32.64	33.15	32.18	33.06
1794	NASDAQ	PRDO	Thu, Apr 21, 2005	32.25	32.89	32.19	32.39
1793	NASDAQ	PRDO	Wed, Apr 20, 2005	33.66	33.75	31.95	32.01
1792	NASDAQ	PRDO	Tue, Apr 19, 2005	33.45	34.00	33.27	33.73
1791	NASDAQ	PRDO	Mon, Apr 18, 2005	32.86	33.54	32.76	33.26
1790	NASDAQ	PRDO	Fri, Apr 15, 2005	32.38	33.83	32.38	32.73
1789	NASDAQ	PRDO	Thu, Apr 14, 2005	32.75	33.16	32.36	32.39
1788	NASDAQ	PRDO	Wed, Apr 13, 2005	32.77	33.40	32.31	32.76
1787	NASDAQ	PRDO	Tue, Apr 12, 2005	33.21	33.42	32.40	32.77
1786	NASDAQ	PRDO	Mon, Apr 11, 2005	33.63	33.70	32.00	33.06
1785	NASDAQ	PRDO	Fri, Apr 8, 2005	33.34	33.34	31.76	32.00
1784	NASDAQ	PRDO	Thu, Apr 7, 2005	33.27	33.47	32.82	33.34
1783	NASDAQ	PRDO	Wed, Apr 6, 2005	34.21	34.36	33.25	33.27
1782	NASDAQ	PRDO	Tue, Apr 5, 2005	32.51	35.63	32.49	33.97
1781	NASDAQ	PRDO	Mon, Apr 4, 2005	33.44	33.45	31.77	32.38
1780	NASDAQ	PRDO	Fri, Apr 1, 2005	34.44	34.84	33.38	33.46
1779	NASDAQ	PRDO	Thu, Mar 31, 2005	33.99	34.91	33.35	34.26
1778	NASDAQ	PRDO	Wed, Mar 30, 2005	33.92	34.51	32.66	34.06
1777	NASDAQ	PRDO	Tue, Mar 29, 2005	34.10	34.55	33.14	33.70
1776	NASDAQ	PRDO	Mon, Mar 28, 2005	35.00	35.00	34.56	34.60
1775	NASDAQ	PRDO	Thu, Mar 24, 2005	34.95	35.82	34.60	34.98
1774	NASDAQ	PRDO	Wed, Mar 23, 2005	35.12	35.83	35.12	35.38
1773	NASDAQ	PRDO	Tue, Mar 22, 2005	36.68	36.68	35.12	35.23
1772	NASDAQ	PRDO	Mon, Mar 21, 2005	36.96	37.18	36.17	36.54
1771	NASDAQ	PRDO	Fri, Mar 18, 2005	36.61	37.20	36.50	37.07
1770	NASDAQ	PRDO	Thu, Mar 17, 2005	36.21	37.47	36.21	36.64
1769	NASDAQ	PRDO	Wed, Mar 16, 2005	32.73	38.13	32.50	36.35
1768	NASDAQ	PRDO	Tue, Mar 15, 2005	33.08	33.27	32.58	32.74
1767	NASDAQ	PRDO	Mon, Mar 14, 2005	33.20	33.63	32.81	33.04
1766	NASDAQ	PRDO	Fri, Mar 11, 2005	33.88	34.17	32.94	33.22
1765	NASDAQ	PRDO	Thu, Mar 10, 2005	34.30	34.44	33.45	33.62
1764	NASDAQ	PRDO	Wed, Mar 9, 2005	35.13	35.32	34.11	34.28
1763	NASDAQ	PRDO	Tue, Mar 8, 2005	35.68	35.85	34.81	35.18
1762	NASDAQ	PRDO	Mon, Mar 7, 2005	35.61	36.07	35.15	35.86
1761	NASDAQ	PRDO	Fri, Mar 4, 2005	34.89	35.98	34.69	35.29
1760	NASDAQ	PRDO	Thu, Mar 3, 2005	34.56	34.92	34.50	34.63
1759	NASDAQ	PRDO	Wed, Mar 2, 2005	34.69	35.05	34.40	34.78
1758	NASDAQ	PRDO	Tue, Mar 1, 2005	34.15	35.25	34.15	34.85
1757	NASDAQ	PRDO	Mon, Feb 28, 2005	35.11	35.29	33.70	34.15
1756	NASDAQ	PRDO	Fri, Feb 25, 2005	34.86	35.50	34.50	35.05
1755	NASDAQ	PRDO	Thu, Feb 24, 2005	34.17	34.88	33.62	34.73
1754	NASDAQ	PRDO	Wed, Feb 23, 2005	33.97	34.56	33.30	34.33
1753	NASDAQ	PRDO	Tue, Feb 22, 2005	35.59	35.77	33.71	33.92
1752	NASDAQ	PRDO	Fri, Feb 18, 2005	36.65	37.27	35.59	35.91
1751	NASDAQ	PRDO	Thu, Feb 17, 2005	37.15	37.78	36.50	36.69
1750	NASDAQ	PRDO	Wed, Feb 16, 2005	36.40	37.19	35.31	37.19
1749	NASDAQ	PRDO	Tue, Feb 15, 2005	39.95	40.09	38.66	39.21
1748	NASDAQ	PRDO	Mon, Feb 14, 2005	39.10	40.66	39.01	39.60
1747	NASDAQ	PRDO	Fri, Feb 11, 2005	38.31	39.25	38.31	38.68
1746	NASDAQ	PRDO	Thu, Feb 10, 2005	40.17	40.30	38.01	38.44
1745	NASDAQ	PRDO	Wed, Feb 9, 2005	41.03	41.03	39.98	40.21
1744	NASDAQ	PRDO	Tue, Feb 8, 2005	40.44	41.61	40.43	40.95
1743	NASDAQ	PRDO	Mon, Feb 7, 2005	40.50	41.00	40.32	40.51
1742	NASDAQ	PRDO	Fri, Feb 4, 2005	39.94	40.87	39.94	40.65
1741	NASDAQ	PRDO	Thu, Feb 3, 2005	40.35	40.77	39.66	40.22
1740	NASDAQ	PRDO	Wed, Feb 2, 2005	40.56	40.91	40.21	40.24
1739	NASDAQ	PRDO	Tue, Feb 1, 2005	39.85	40.64	39.15	40.56
1738	NASDAQ	PRDO	Mon, Jan 31, 2005	38.81	40.54	38.61	40.30
1737	NASDAQ	PRDO	Fri, Jan 28, 2005	39.11	39.30	36.57	37.92
1736	NASDAQ	PRDO	Thu, Jan 27, 2005	38.76	39.40	38.11	39.01
1735	NASDAQ	PRDO	Wed, Jan 26, 2005	39.89	39.94	38.48	38.84
1734	NASDAQ	PRDO	Tue, Jan 25, 2005	39.65	39.98	39.20	39.42
1733	NASDAQ	PRDO	Mon, Jan 24, 2005	41.30	41.75	39.16	39.38
1732	NASDAQ	PRDO	Fri, Jan 21, 2005	39.54	39.83	39.27	39.47
1731	NASDAQ	PRDO	Thu, Jan 20, 2005	39.51	40.23	39.36	39.54
1730	NASDAQ	PRDO	Wed, Jan 19, 2005	40.80	40.90	39.62	39.74
1729	NASDAQ	PRDO	Tue, Jan 18, 2005	40.95	41.15	40.27	40.77
1728	NASDAQ	PRDO	Fri, Jan 14, 2005	41.28	41.38	40.70	41.00
1727	NASDAQ	PRDO	Thu, Jan 13, 2005	42.43	42.43	41.08	41.09
1726	NASDAQ	PRDO	Wed, Jan 12, 2005	42.20	42.27	41.75	42.04
1725	NASDAQ	PRDO	Tue, Jan 11, 2005	40.65	42.41	40.62	42.05
1724	NASDAQ	PRDO	Mon, Jan 10, 2005	40.09	40.65	40.00	40.25
1723	NASDAQ	PRDO	Fri, Jan 7, 2005	40.56	40.70	39.98	40.10
1722	NASDAQ	PRDO	Thu, Jan 6, 2005	39.87	40.97	39.87	40.32
1721	NASDAQ	PRDO	Wed, Jan 5, 2005	39.66	40.66	39.29	40.22
1720	NASDAQ	PRDO	Tue, Jan 4, 2005	40.34	40.67	38.94	39.55
1719	NASDAQ	PRDO	Mon, Jan 3, 2005	41.00	41.00	39.47	39.71
1718	NASDAQ	PRDO	Fri, Dec 31, 2004	40.48	40.49	39.97	40.00
1717	NASDAQ	PRDO	Thu, Dec 30, 2004	40.00	40.50	39.95	40.40
1716	NASDAQ	PRDO	Wed, Dec 29, 2004	39.49	40.15	39.02	40.10
1715	NASDAQ	PRDO	Tue, Dec 28, 2004	38.26	39.43	38.21	39.43
1714	NASDAQ	PRDO	Mon, Dec 27, 2004	39.00	39.46	38.04	38.61
1713	NASDAQ	PRDO	Thu, Dec 23, 2004	38.70	39.69	38.01	38.91
1712	NASDAQ	PRDO	Wed, Dec 22, 2004	38.00	39.21	37.99	38.97
1711	NASDAQ	PRDO	Tue, Dec 21, 2004	36.95	38.28	36.88	38.16
1710	NASDAQ	PRDO	Mon, Dec 20, 2004	37.01	38.11	36.52	36.98
1709	NASDAQ	PRDO	Fri, Dec 17, 2004	38.27	38.34	35.60	36.51
1708	NASDAQ	PRDO	Thu, Dec 16, 2004	38.01	38.37	37.25	37.85
1707	NASDAQ	PRDO	Wed, Dec 15, 2004	39.81	41.30	38.13	39.05
1706	NASDAQ	PRDO	Tue, Dec 14, 2004	40.31	41.66	39.77	40.20
1705	NASDAQ	PRDO	Mon, Dec 13, 2004	40.94	41.50	39.47	39.88
1704	NASDAQ	PRDO	Fri, Dec 10, 2004	41.16	41.31	39.88	40.85
1703	NASDAQ	PRDO	Thu, Dec 9, 2004	42.02	42.65	40.64	41.17
1702	NASDAQ	PRDO	Wed, Dec 8, 2004	41.38	43.09	41.11	42.32
1701	NASDAQ	PRDO	Tue, Dec 7, 2004	39.65	42.20	37.61	40.71
1700	NASDAQ	PRDO	Mon, Dec 6, 2004	38.62	40.65	38.61	39.86
1699	NASDAQ	PRDO	Fri, Dec 3, 2004	40.34	40.43	38.94	39.06
1698	NASDAQ	PRDO	Thu, Dec 2, 2004	40.59	41.15	40.09	40.35
1697	NASDAQ	PRDO	Wed, Dec 1, 2004	38.81	40.50	38.74	40.45
1696	NASDAQ	PRDO	Tue, Nov 30, 2004	38.74	39.25	38.18	38.90
1695	NASDAQ	PRDO	Mon, Nov 29, 2004	39.05	39.34	38.00	38.90
1694	NASDAQ	PRDO	Fri, Nov 26, 2004	38.89	39.25	38.20	38.31
1693	NASDAQ	PRDO	Wed, Nov 24, 2004	37.38	39.20	37.38	39.01
1692	NASDAQ	PRDO	Tue, Nov 23, 2004	36.67	37.36	36.53	37.09
1691	NASDAQ	PRDO	Mon, Nov 22, 2004	35.44	37.49	35.25	37.05
1690	NASDAQ	PRDO	Fri, Nov 19, 2004	37.63	37.68	34.63	35.01
1689	NASDAQ	PRDO	Thu, Nov 18, 2004	37.48	37.67	36.87	37.44
1688	NASDAQ	PRDO	Wed, Nov 17, 2004	37.30	37.52	36.75	37.44
1687	NASDAQ	PRDO	Tue, Nov 16, 2004	35.80	37.29	35.27	36.71
1686	NASDAQ	PRDO	Mon, Nov 15, 2004	34.96	35.83	34.79	35.80
1685	NASDAQ	PRDO	Fri, Nov 12, 2004	32.62	35.10	32.14	35.00
1684	NASDAQ	PRDO	Thu, Nov 11, 2004	32.15	32.96	31.86	32.63
1683	NASDAQ	PRDO	Wed, Nov 10, 2004	30.80	32.30	30.68	32.17
1682	NASDAQ	PRDO	Tue, Nov 9, 2004	30.55	30.85	30.25	30.49
1681	NASDAQ	PRDO	Mon, Nov 8, 2004	31.01	31.49	30.70	31.30
1680	NASDAQ	PRDO	Fri, Nov 5, 2004	31.10	31.17	30.41	30.82
1679	NASDAQ	PRDO	Thu, Nov 4, 2004	30.40	31.15	29.83	30.90
1678	NASDAQ	PRDO	Wed, Nov 3, 2004	32.30	32.40	30.03	30.71
1677	NASDAQ	PRDO	Tue, Nov 2, 2004	31.39	32.57	31.20	31.64
1676	NASDAQ	PRDO	Mon, Nov 1, 2004	31.39	31.67	30.90	31.13
1675	NASDAQ	PRDO	Fri, Oct 29, 2004	31.90	32.39	30.82	31.37
1674	NASDAQ	PRDO	Thu, Oct 28, 2004	30.75	32.74	30.25	32.01
1673	NASDAQ	PRDO	Wed, Oct 27, 2004	31.18	32.98	30.94	31.10
1672	NASDAQ	PRDO	Tue, Oct 26, 2004	27.25	28.48	27.22	27.94
1671	NASDAQ	PRDO	Mon, Oct 25, 2004	27.00	28.15	26.22	27.62
1670	NASDAQ	PRDO	Fri, Oct 22, 2004	27.15	27.72	26.82	27.22
1669	NASDAQ	PRDO	Thu, Oct 21, 2004	27.25	27.46	26.69	26.97
1668	NASDAQ	PRDO	Wed, Oct 20, 2004	27.71	28.03	27.04	27.52
1667	NASDAQ	PRDO	Tue, Oct 19, 2004	28.36	28.51	27.66	27.76
1666	NASDAQ	PRDO	Mon, Oct 18, 2004	28.58	28.58	27.79	28.41
1665	NASDAQ	PRDO	Fri, Oct 15, 2004	28.27	28.42	27.61	28.13
1664	NASDAQ	PRDO	Thu, Oct 14, 2004	28.00	28.60	27.92	28.12
1663	NASDAQ	PRDO	Wed, Oct 13, 2004	29.32	29.45	27.79	28.28
1662	NASDAQ	PRDO	Tue, Oct 12, 2004	26.96	29.38	26.94	29.14
1661	NASDAQ	PRDO	Mon, Oct 11, 2004	26.89	27.48	26.46	27.40
1660	NASDAQ	PRDO	Fri, Oct 8, 2004	26.66	27.20	26.32	26.75
1659	NASDAQ	PRDO	Thu, Oct 7, 2004	27.20	27.74	26.32	26.84
1658	NASDAQ	PRDO	Wed, Oct 6, 2004	27.95	28.18	27.15	27.50
1657	NASDAQ	PRDO	Tue, Oct 5, 2004	27.92	28.35	27.65	28.08
1656	NASDAQ	PRDO	Mon, Oct 4, 2004	29.10	29.14	27.50	27.84
1655	NASDAQ	PRDO	Fri, Oct 1, 2004	29.03	29.80	28.61	29.58
1654	NASDAQ	PRDO	Thu, Sep 30, 2004	29.11	29.23	28.31	28.43
1653	NASDAQ	PRDO	Wed, Sep 29, 2004	28.21	30.05	28.06	29.02
1652	NASDAQ	PRDO	Tue, Sep 28, 2004	27.86	28.09	27.25	27.90
1651	NASDAQ	PRDO	Mon, Sep 27, 2004	28.40	28.55	27.51	27.77
1650	NASDAQ	PRDO	Fri, Sep 24, 2004	28.43	29.00	27.89	28.65
1649	NASDAQ	PRDO	Thu, Sep 23, 2004	29.06	29.18	28.03	28.21
1648	NASDAQ	PRDO	Wed, Sep 22, 2004	29.90	31.27	28.64	28.98
1647	NASDAQ	PRDO	Tue, Sep 21, 2004	29.50	29.57	28.69	28.83
1646	NASDAQ	PRDO	Mon, Sep 20, 2004	29.30	30.05	28.88	29.54
1645	NASDAQ	PRDO	Fri, Sep 17, 2004	31.69	32.36	30.13	30.50
1644	NASDAQ	PRDO	Thu, Sep 16, 2004	31.99	32.75	31.45	31.63
1643	NASDAQ	PRDO	Wed, Sep 15, 2004	33.55	33.68	31.61	31.97
1642	NASDAQ	PRDO	Tue, Sep 14, 2004	34.28	34.50	33.36	33.74
1641	NASDAQ	PRDO	Mon, Sep 13, 2004	34.25	35.63	34.00	34.68
1640	NASDAQ	PRDO	Fri, Sep 10, 2004	34.22	34.91	33.51	34.48
1639	NASDAQ	PRDO	Thu, Sep 9, 2004	34.12	34.69	33.64	34.15
1638	NASDAQ	PRDO	Wed, Sep 8, 2004	34.75	35.73	33.52	34.03
1637	NASDAQ	PRDO	Tue, Sep 7, 2004	34.90	35.16	33.38	34.70
1636	NASDAQ	PRDO	Fri, Sep 3, 2004	34.57	35.29	34.43	34.51
1635	NASDAQ	PRDO	Thu, Sep 2, 2004	31.70	35.22	31.55	34.51
1634	NASDAQ	PRDO	Wed, Sep 1, 2004	31.35	32.94	30.86	32.55
1633	NASDAQ	PRDO	Tue, Aug 31, 2004	30.50	31.01	30.29	30.84
1632	NASDAQ	PRDO	Mon, Aug 30, 2004	30.75	31.16	30.48	30.62
1631	NASDAQ	PRDO	Fri, Aug 27, 2004	31.00	32.49	30.57	31.05
1630	NASDAQ	PRDO	Thu, Aug 26, 2004	27.82	31.12	27.81	30.94
1629	NASDAQ	PRDO	Wed, Aug 25, 2004	30.50	31.39	30.45	31.01
1628	NASDAQ	PRDO	Tue, Aug 24, 2004	30.74	31.10	30.27	30.50
1627	NASDAQ	PRDO	Mon, Aug 23, 2004	31.42	31.91	30.29	30.49
1626	NASDAQ	PRDO	Fri, Aug 20, 2004	30.25	31.75	29.99	30.97
1625	NASDAQ	PRDO	Thu, Aug 19, 2004	30.78	31.13	29.87	30.26
1624	NASDAQ	PRDO	Wed, Aug 18, 2004	31.29	31.39	29.75	30.86
1623	NASDAQ	PRDO	Tue, Aug 17, 2004	32.08	32.33	31.54	31.83
1622	NASDAQ	PRDO	Mon, Aug 16, 2004	31.37	31.94	31.00	31.52
1621	NASDAQ	PRDO	Fri, Aug 13, 2004	32.80	33.00	31.59	31.99
1620	NASDAQ	PRDO	Thu, Aug 12, 2004	30.75	33.85	30.55	33.00
1619	NASDAQ	PRDO	Wed, Aug 11, 2004	28.75	31.14	28.61	30.79
1618	NASDAQ	PRDO	Tue, Aug 10, 2004	28.49	29.94	28.37	29.02
1617	NASDAQ	PRDO	Mon, Aug 9, 2004	28.01	29.38	27.95	28.83
1616	NASDAQ	PRDO	Fri, Aug 6, 2004	27.73	29.23	26.89	28.48
1615	NASDAQ	PRDO	Thu, Aug 5, 2004	28.44	28.79	27.30	27.31
1614	NASDAQ	PRDO	Wed, Aug 4, 2004	29.52	30.14	28.10	28.26
1613	NASDAQ	PRDO	Tue, Aug 3, 2004	30.45	30.47	29.30	29.43
1612	NASDAQ	PRDO	Mon, Aug 2, 2004	28.97	30.30	28.50	29.60
1611	NASDAQ	PRDO	Fri, Jul 30, 2004	34.21	34.94	33.51	33.81
1610	NASDAQ	PRDO	Thu, Jul 29, 2004	34.24	34.55	32.73	34.55
1609	NASDAQ	PRDO	Wed, Jul 28, 2004	39.54	39.62	32.65	33.63
1608	NASDAQ	PRDO	Tue, Jul 27, 2004	42.88	45.10	42.25	44.50
1607	NASDAQ	PRDO	Mon, Jul 26, 2004	41.00	43.90	39.72	42.58
1606	NASDAQ	PRDO	Fri, Jul 23, 2004	42.37	43.89	42.29	42.50
1605	NASDAQ	PRDO	Thu, Jul 22, 2004	41.78	43.21	41.43	42.98
1604	NASDAQ	PRDO	Wed, Jul 21, 2004	43.35	44.80	41.36	41.88
1603	NASDAQ	PRDO	Tue, Jul 20, 2004	41.09	43.46	39.04	43.15
1602	NASDAQ	PRDO	Mon, Jul 19, 2004	42.08	42.61	40.58	41.45
1601	NASDAQ	PRDO	Fri, Jul 16, 2004	44.36	44.81	41.99	42.25
1600	NASDAQ	PRDO	Thu, Jul 15, 2004	44.11	44.54	43.55	44.11
1599	NASDAQ	PRDO	Wed, Jul 14, 2004	44.08	44.38	42.91	44.05
1598	NASDAQ	PRDO	Tue, Jul 13, 2004	44.52	44.83	43.60	44.08
1597	NASDAQ	PRDO	Mon, Jul 12, 2004	45.00	45.67	43.56	44.24
1596	NASDAQ	PRDO	Fri, Jul 9, 2004	45.60	45.99	44.27	44.89
1595	NASDAQ	PRDO	Thu, Jul 8, 2004	43.30	46.24	43.28	44.85
1594	NASDAQ	PRDO	Wed, Jul 7, 2004	42.25	44.23	41.95	43.85
1593	NASDAQ	PRDO	Tue, Jul 6, 2004	41.76	42.86	41.40	42.06
1592	NASDAQ	PRDO	Fri, Jul 2, 2004	43.41	43.55	41.74	42.25
1591	NASDAQ	PRDO	Thu, Jul 1, 2004	45.75	46.50	44.84	45.00
1590	NASDAQ	PRDO	Wed, Jun 30, 2004	43.61	46.00	43.32	45.56
1589	NASDAQ	PRDO	Tue, Jun 29, 2004	46.73	48.25	43.76	44.45
1588	NASDAQ	PRDO	Mon, Jun 28, 2004	45.10	47.75	44.90	46.88
1587	NASDAQ	PRDO	Fri, Jun 25, 2004	44.74	46.65	44.67	44.97
1586	NASDAQ	PRDO	Thu, Jun 24, 2004	41.94	46.46	40.85	44.75
1585	NASDAQ	PRDO	Wed, Jun 23, 2004	49.77	50.85	43.18	44.11
1584	NASDAQ	PRDO	Tue, Jun 22, 2004	56.58	59.34	55.31	58.58
1583	NASDAQ	PRDO	Mon, Jun 21, 2004	57.00	57.00	53.78	56.19
1582	NASDAQ	PRDO	Fri, Jun 18, 2004	56.54	63.02	55.15	56.24
1581	NASDAQ	PRDO	Thu, Jun 17, 2004	69.24	69.74	65.06	67.03
1580	NASDAQ	PRDO	Wed, Jun 16, 2004	68.62	69.97	68.00	69.52
1579	NASDAQ	PRDO	Tue, Jun 15, 2004	68.30	68.81	67.69	68.04
1578	NASDAQ	PRDO	Mon, Jun 14, 2004	69.85	70.00	66.57	67.20
1577	NASDAQ	PRDO	Thu, Jun 10, 2004	69.21	70.78	69.17	69.98
1576	NASDAQ	PRDO	Wed, Jun 9, 2004	68.67	70.09	68.67	69.10
1575	NASDAQ	PRDO	Tue, Jun 8, 2004	67.78	69.67	67.52	69.27
1574	NASDAQ	PRDO	Mon, Jun 7, 2004	66.66	68.50	66.33	68.24
1573	NASDAQ	PRDO	Fri, Jun 4, 2004	65.68	67.00	65.30	66.25
1572	NASDAQ	PRDO	Thu, Jun 3, 2004	66.59	66.66	65.05	65.05
1571	NASDAQ	PRDO	Wed, Jun 2, 2004	67.64	67.80	66.34	66.64
1570	NASDAQ	PRDO	Tue, Jun 1, 2004	67.50	67.99	66.30	67.08
1569	NASDAQ	PRDO	Fri, May 28, 2004	66.72	67.97	65.89	67.97
1568	NASDAQ	PRDO	Thu, May 27, 2004	64.47	66.79	64.36	66.41
1567	NASDAQ	PRDO	Wed, May 26, 2004	64.73	65.70	64.50	64.94
1566	NASDAQ	PRDO	Tue, May 25, 2004	62.58	65.28	61.50	65.07
1565	NASDAQ	PRDO	Mon, May 24, 2004	58.71	63.00	58.45	62.29
1564	NASDAQ	PRDO	Fri, May 21, 2004	62.31	62.91	61.52	62.56
1563	NASDAQ	PRDO	Thu, May 20, 2004	63.98	64.03	61.97	62.09
1562	NASDAQ	PRDO	Wed, May 19, 2004	64.38	65.26	63.73	63.73
1561	NASDAQ	PRDO	Tue, May 18, 2004	63.25	64.11	63.14	64.11
1560	NASDAQ	PRDO	Mon, May 17, 2004	63.16	63.75	62.22	62.67
1559	NASDAQ	PRDO	Fri, May 14, 2004	65.41	65.76	64.13	64.26
1558	NASDAQ	PRDO	Thu, May 13, 2004	63.35	65.94	63.25	65.22
1557	NASDAQ	PRDO	Wed, May 12, 2004	64.53	64.90	61.52	63.66
1556	NASDAQ	PRDO	Tue, May 11, 2004	64.67	65.32	62.55	64.54
1555	NASDAQ	PRDO	Mon, May 10, 2004	66.20	66.33	61.94	63.26
1554	NASDAQ	PRDO	Fri, May 7, 2004	68.67	69.78	66.72	66.87
1553	NASDAQ	PRDO	Thu, May 6, 2004	68.00	69.90	67.82	69.38
1552	NASDAQ	PRDO	Wed, May 5, 2004	67.33	68.97	66.55	68.80
1551	NASDAQ	PRDO	Tue, May 4, 2004	67.70	68.49	66.80	67.49
1550	NASDAQ	PRDO	Mon, May 3, 2004	63.70	68.25	63.25	67.85
1549	NASDAQ	PRDO	Fri, Apr 30, 2004	64.68	65.23	63.70	63.98
1548	NASDAQ	PRDO	Thu, Apr 29, 2004	64.12	65.79	63.39	64.03
1547	NASDAQ	PRDO	Wed, Apr 28, 2004	63.77	65.50	63.16	64.32
1546	NASDAQ	PRDO	Tue, Apr 27, 2004	68.40	68.57	65.13	65.59
1545	NASDAQ	PRDO	Mon, Apr 26, 2004	67.58	69.12	66.98	68.23
1544	NASDAQ	PRDO	Fri, Apr 23, 2004	68.95	69.18	66.69	67.58
1543	NASDAQ	PRDO	Thu, Apr 22, 2004	69.64	70.78	69.22	69.94
1542	NASDAQ	PRDO	Wed, Apr 21, 2004	66.72	70.91	65.06	70.66
1541	NASDAQ	PRDO	Tue, Apr 20, 2004	64.08	64.74	61.56	62.50
1540	NASDAQ	PRDO	Mon, Apr 19, 2004	62.24	64.57	61.45	64.12
1539	NASDAQ	PRDO	Fri, Apr 16, 2004	62.83	64.36	61.90	62.31
1538	NASDAQ	PRDO	Thu, Apr 15, 2004	61.75	62.85	61.01	62.63
1537	NASDAQ	PRDO	Wed, Apr 14, 2004	59.46	62.54	59.24	61.52
1536	NASDAQ	PRDO	Tue, Apr 13, 2004	59.63	60.12	59.10	59.82
1535	NASDAQ	PRDO	Mon, Apr 12, 2004	57.95	59.41	57.43	59.20
1534	NASDAQ	PRDO	Thu, Apr 8, 2004	58.95	59.95	57.77	57.90
1533	NASDAQ	PRDO	Wed, Apr 7, 2004	58.70	59.13	57.75	58.60
1532	NASDAQ	PRDO	Tue, Apr 6, 2004	59.40	59.66	57.27	57.61
1531	NASDAQ	PRDO	Mon, Apr 5, 2004	59.38	59.94	58.82	59.76
1530	NASDAQ	PRDO	Fri, Apr 2, 2004	58.92	59.79	58.33	59.57
1529	NASDAQ	PRDO	Thu, Apr 1, 2004	56.79	58.39	56.55	58.27
1528	NASDAQ	PRDO	Wed, Mar 31, 2004	56.75	57.36	56.07	56.55
1527	NASDAQ	PRDO	Tue, Mar 30, 2004	57.22	57.73	56.40	56.83
1526	NASDAQ	PRDO	Mon, Mar 29, 2004	55.75	58.69	55.33	57.59
1525	NASDAQ	PRDO	Fri, Mar 26, 2004	53.42	55.56	53.31	55.16
1524	NASDAQ	PRDO	Thu, Mar 25, 2004	51.24	54.32	51.17	53.21
1523	NASDAQ	PRDO	Wed, Mar 24, 2004	49.11	51.43	48.74	50.66
1522	NASDAQ	PRDO	Tue, Mar 23, 2004	47.62	49.60	47.48	49.00
1521	NASDAQ	PRDO	Mon, Mar 22, 2004	47.24	47.52	46.55	47.07
1520	NASDAQ	PRDO	Fri, Mar 19, 2004	46.14	48.21	46.00	47.66
1519	NASDAQ	PRDO	Thu, Mar 18, 2004	48.55	48.55	47.66	48.03
1518	NASDAQ	PRDO	Wed, Mar 17, 2004	48.24	48.84	48.01	48.56
1517	NASDAQ	PRDO	Tue, Mar 16, 2004	47.74	48.57	47.20	48.36
1516	NASDAQ	PRDO	Mon, Mar 15, 2004	46.06	48.09	46.00	46.68
1515	NASDAQ	PRDO	Fri, Mar 12, 2004	46.50	48.49	45.11	46.47
1514	NASDAQ	PRDO	Thu, Mar 11, 2004	47.10	47.49	45.12	46.43
1513	NASDAQ	PRDO	Wed, Mar 10, 2004	49.11	49.25	47.26	47.50
1512	NASDAQ	PRDO	Tue, Mar 9, 2004	51.16	51.16	48.85	49.23
1511	NASDAQ	PRDO	Mon, Mar 8, 2004	52.10	52.86	51.13	51.29
1510	NASDAQ	PRDO	Fri, Mar 5, 2004	51.11	52.79	50.67	52.17
1509	NASDAQ	PRDO	Thu, Mar 4, 2004	50.22	51.80	49.94	51.35
1508	NASDAQ	PRDO	Wed, Mar 3, 2004	50.25	51.13	49.14	50.21
1507	NASDAQ	PRDO	Tue, Mar 2, 2004	50.49	50.79	49.89	50.45
1506	NASDAQ	PRDO	Mon, Mar 1, 2004	50.18	51.24	49.73	50.75
1505	NASDAQ	PRDO	Fri, Feb 27, 2004	48.93	50.12	48.93	49.83
1504	NASDAQ	PRDO	Thu, Feb 26, 2004	48.77	50.25	47.65	49.20
1503	NASDAQ	PRDO	Wed, Feb 25, 2004	51.20	51.29	47.17	48.80
1502	NASDAQ	PRDO	Tue, Feb 24, 2004	50.99	52.24	50.75	51.46
1501	NASDAQ	PRDO	Mon, Feb 23, 2004	52.39	52.65	50.86	51.00
1500	NASDAQ	PRDO	Fri, Feb 20, 2004	52.16	52.76	51.50	52.38
1499	NASDAQ	PRDO	Thu, Feb 19, 2004	52.80	53.35	52.11	52.11
1498	NASDAQ	PRDO	Wed, Feb 18, 2004	51.76	52.70	51.69	52.50
1497	NASDAQ	PRDO	Tue, Feb 17, 2004	52.99	53.39	51.76	52.03
1496	NASDAQ	PRDO	Fri, Feb 13, 2004	53.81	54.73	52.41	52.41
1495	NASDAQ	PRDO	Thu, Feb 12, 2004	53.70	54.68	53.51	53.79
1494	NASDAQ	PRDO	Wed, Feb 11, 2004	54.06	54.47	53.66	54.25
1493	NASDAQ	PRDO	Tue, Feb 10, 2004	53.30	55.29	53.00	54.48
1492	NASDAQ	PRDO	Mon, Feb 9, 2004	52.01	53.60	51.91	53.25
1491	NASDAQ	PRDO	Fri, Feb 6, 2004	51.85	53.28	51.59	53.15
1490	NASDAQ	PRDO	Thu, Feb 5, 2004	51.78	53.30	51.75	51.95
1489	NASDAQ	PRDO	Wed, Feb 4, 2004	48.89	53.50	48.33	52.00
1488	NASDAQ	PRDO	Tue, Feb 3, 2004	50.56	50.63	48.50	48.59
1487	NASDAQ	PRDO	Mon, Feb 2, 2004	50.57	51.61	49.70	50.65
1486	NASDAQ	PRDO	Fri, Jan 30, 2004	50.05	50.92	47.99	50.36
1485	NASDAQ	PRDO	Thu, Jan 29, 2004	47.78	51.00	45.70	49.50
1484	NASDAQ	PRDO	Wed, Jan 28, 2004	49.74	49.75	46.63	47.10
1483	NASDAQ	PRDO	Tue, Jan 27, 2004	51.25	51.73	50.18	50.48
1482	NASDAQ	PRDO	Mon, Jan 26, 2004	50.50	51.40	50.40	51.12
1481	NASDAQ	PRDO	Fri, Jan 23, 2004	49.65	51.31	49.65	50.90
1480	NASDAQ	PRDO	Thu, Jan 22, 2004	50.74	50.86	49.58	49.65
1479	NASDAQ	PRDO	Wed, Jan 21, 2004	50.50	51.54	50.01	50.46
1478	NASDAQ	PRDO	Tue, Jan 20, 2004	48.72	51.00	48.50	50.93
1477	NASDAQ	PRDO	Fri, Jan 16, 2004	48.39	49.30	48.25	48.45
1476	NASDAQ	PRDO	Thu, Jan 15, 2004	48.50	49.27	47.78	48.59
1475	NASDAQ	PRDO	Wed, Jan 14, 2004	49.12	49.74	48.21	48.80
1474	NASDAQ	PRDO	Tue, Jan 13, 2004	49.97	50.28	48.63	49.01
1473	NASDAQ	PRDO	Mon, Jan 12, 2004	47.80	49.83	47.42	49.67
1472	NASDAQ	PRDO	Fri, Jan 9, 2004	45.21	47.75	45.21	47.15
1471	NASDAQ	PRDO	Thu, Jan 8, 2004	47.19	48.00	44.79	46.33
1470	NASDAQ	PRDO	Wed, Jan 7, 2004	44.94	47.00	44.36	46.56
1469	NASDAQ	PRDO	Tue, Jan 6, 2004	42.54	45.46	42.41	44.95
1468	NASDAQ	PRDO	Mon, Jan 5, 2004	41.80	43.10	41.46	42.62
1467	NASDAQ	PRDO	Fri, Jan 2, 2004	39.79	42.07	39.75	41.72
1466	NASDAQ	PRDO	Wed, Dec 31, 2003	40.09	40.83	39.99	40.25
1465	NASDAQ	PRDO	Tue, Dec 30, 2003	40.02	40.14	39.32	39.91
1464	NASDAQ	PRDO	Mon, Dec 29, 2003	38.30	40.66	38.26	40.40
1463	NASDAQ	PRDO	Fri, Dec 26, 2003	38.65	38.98	38.48	38.50
1462	NASDAQ	PRDO	Wed, Dec 24, 2003	37.89	38.60	37.75	38.50
1461	NASDAQ	PRDO	Tue, Dec 23, 2003	36.89	38.19	36.30	37.99
1460	NASDAQ	PRDO	Mon, Dec 22, 2003	37.04	37.19	36.22	36.90
1459	NASDAQ	PRDO	Fri, Dec 19, 2003	37.01	38.17	36.40	36.78
1458	NASDAQ	PRDO	Thu, Dec 18, 2003	37.79	38.98	37.29	37.58
1457	NASDAQ	PRDO	Wed, Dec 17, 2003	37.49	38.12	36.30	37.85
1456	NASDAQ	PRDO	Tue, Dec 16, 2003	37.55	38.50	37.20	37.45
1455	NASDAQ	PRDO	Mon, Dec 15, 2003	40.90	41.17	36.98	37.62
1454	NASDAQ	PRDO	Fri, Dec 12, 2003	40.80	41.80	39.80	40.27
1453	NASDAQ	PRDO	Thu, Dec 11, 2003	38.25	40.60	38.14	40.35
1452	NASDAQ	PRDO	Wed, Dec 10, 2003	38.22	38.75	36.51	38.43
1451	NASDAQ	PRDO	Tue, Dec 9, 2003	39.34	39.87	37.62	37.86
1450	NASDAQ	PRDO	Mon, Dec 8, 2003	38.04	39.83	38.03	39.17
1449	NASDAQ	PRDO	Fri, Dec 5, 2003	36.77	39.33	33.00	38.45
1448	NASDAQ	PRDO	Thu, Dec 4, 2003	43.79	44.09	31.50	36.54
1447	NASDAQ	PRDO	Wed, Dec 3, 2003	54.60	55.64	39.20	39.48
1446	NASDAQ	PRDO	Tue, Dec 2, 2003	53.87	54.84	53.76	54.76
1445	NASDAQ	PRDO	Mon, Dec 1, 2003	51.42	54.05	51.30	53.84
1444	NASDAQ	PRDO	Fri, Nov 28, 2003	50.79	51.41	50.41	51.28
1443	NASDAQ	PRDO	Wed, Nov 26, 2003	51.22	51.50	49.80	50.59
1442	NASDAQ	PRDO	Tue, Nov 25, 2003	52.14	52.29	49.99	50.45
1441	NASDAQ	PRDO	Mon, Nov 24, 2003	49.75	52.12	49.70	52.06
1440	NASDAQ	PRDO	Fri, Nov 21, 2003	48.71	49.60	48.71	49.42
1439	NASDAQ	PRDO	Thu, Nov 20, 2003	49.70	49.94	48.30	48.80
1438	NASDAQ	PRDO	Wed, Nov 19, 2003	48.74	50.23	47.61	49.42
1437	NASDAQ	PRDO	Tue, Nov 18, 2003	47.64	48.36	46.81	47.35
1436	NASDAQ	PRDO	Mon, Nov 17, 2003	49.35	49.75	42.56	45.81
1435	NASDAQ	PRDO	Fri, Nov 14, 2003	53.72	54.60	52.70	52.91
1434	NASDAQ	PRDO	Thu, Nov 13, 2003	52.61	53.00	52.33	52.33
1433	NASDAQ	PRDO	Wed, Nov 12, 2003	51.55	53.00	51.45	52.99
1432	NASDAQ	PRDO	Tue, Nov 11, 2003	53.20	53.39	51.14	51.64
1431	NASDAQ	PRDO	Mon, Nov 10, 2003	54.70	54.75	52.54	52.69
1430	NASDAQ	PRDO	Fri, Nov 7, 2003	54.74	55.09	54.04	54.13
1429	NASDAQ	PRDO	Thu, Nov 6, 2003	54.94	55.27	54.28	54.75
1428	NASDAQ	PRDO	Wed, Nov 5, 2003	54.32	54.97	53.60	54.71
1427	NASDAQ	PRDO	Tue, Nov 4, 2003	54.61	55.25	53.68	54.22
1426	NASDAQ	PRDO	Mon, Nov 3, 2003	54.03	55.12	53.79	54.95
1425	NASDAQ	PRDO	Fri, Oct 31, 2003	54.61	54.63	53.06	53.55
1424	NASDAQ	PRDO	Thu, Oct 30, 2003	56.19	56.20	54.69	54.70
1423	NASDAQ	PRDO	Wed, Oct 29, 2003	53.24	55.30	52.55	55.11
1422	NASDAQ	PRDO	Tue, Oct 28, 2003	51.83	52.96	51.56	52.16
1421	NASDAQ	PRDO	Mon, Oct 27, 2003	52.59	53.00	51.08	52.14
1420	NASDAQ	PRDO	Fri, Oct 24, 2003	51.68	52.43	50.63	52.35
1419	NASDAQ	PRDO	Thu, Oct 23, 2003	49.92	52.10	49.02	51.68
1418	NASDAQ	PRDO	Wed, Oct 22, 2003	48.66	51.88	48.25	49.50
1417	NASDAQ	PRDO	Tue, Oct 21, 2003	44.54	46.40	44.42	46.15
1416	NASDAQ	PRDO	Mon, Oct 20, 2003	42.68	44.42	42.64	43.93
1415	NASDAQ	PRDO	Fri, Oct 17, 2003	42.65	44.58	42.52	43.17
1414	NASDAQ	PRDO	Thu, Oct 16, 2003	43.50	44.70	42.90	43.10
1413	NASDAQ	PRDO	Wed, Oct 15, 2003	46.24	46.31	42.30	43.15
1412	NASDAQ	PRDO	Tue, Oct 14, 2003	47.70	47.75	45.87	46.10
1411	NASDAQ	PRDO	Mon, Oct 13, 2003	48.08	48.25	47.57	47.63
1410	NASDAQ	PRDO	Fri, Oct 10, 2003	48.06	48.26	47.67	47.80
1409	NASDAQ	PRDO	Thu, Oct 9, 2003	48.30	48.81	46.80	47.38
1408	NASDAQ	PRDO	Wed, Oct 8, 2003	49.13	49.62	47.08	47.83
1407	NASDAQ	PRDO	Tue, Oct 7, 2003	48.40	49.50	47.68	48.95
1406	NASDAQ	PRDO	Mon, Oct 6, 2003	48.28	49.44	48.19	49.40
1405	NASDAQ	PRDO	Fri, Oct 3, 2003	48.48	48.73	47.99	48.25
1404	NASDAQ	PRDO	Thu, Oct 2, 2003	48.27	48.47	46.76	47.59
1403	NASDAQ	PRDO	Wed, Oct 1, 2003	45.59	47.78	45.44	47.72
1402	NASDAQ	PRDO	Tue, Sep 30, 2003	46.03	46.10	44.79	45.31
1401	NASDAQ	PRDO	Mon, Sep 29, 2003	46.27	46.50	45.70	46.09
1400	NASDAQ	PRDO	Fri, Sep 26, 2003	46.80	47.60	45.78	46.06
1399	NASDAQ	PRDO	Thu, Sep 25, 2003	47.61	48.05	46.83	47.08
1398	NASDAQ	PRDO	Wed, Sep 24, 2003	48.10	48.73	47.31	47.75
1397	NASDAQ	PRDO	Tue, Sep 23, 2003	49.07	49.45	47.31	48.00
1396	NASDAQ	PRDO	Mon, Sep 22, 2003	48.16	48.73	47.65	48.59
1395	NASDAQ	PRDO	Fri, Sep 19, 2003	49.70	50.00	48.42	48.78
1394	NASDAQ	PRDO	Thu, Sep 18, 2003	50.41	50.46	49.38	49.70
1393	NASDAQ	PRDO	Wed, Sep 17, 2003	49.48	50.25	49.23	50.00
1392	NASDAQ	PRDO	Tue, Sep 16, 2003	48.13	49.29	47.91	49.10
1391	NASDAQ	PRDO	Mon, Sep 15, 2003	48.50	48.80	47.50	47.84
1390	NASDAQ	PRDO	Fri, Sep 12, 2003	45.26	47.97	45.14	47.96
1389	NASDAQ	PRDO	Thu, Sep 11, 2003	44.59	45.30	44.25	45.28
1388	NASDAQ	PRDO	Wed, Sep 10, 2003	44.40	44.84	44.17	44.19
1387	NASDAQ	PRDO	Tue, Sep 9, 2003	44.79	44.88	44.00	44.56
1386	NASDAQ	PRDO	Mon, Sep 8, 2003	44.28	44.55	43.61	44.20
1385	NASDAQ	PRDO	Fri, Sep 5, 2003	45.28	45.37	43.57	43.99
1384	NASDAQ	PRDO	Thu, Sep 4, 2003	45.13	45.67	45.00	45.15
1383	NASDAQ	PRDO	Wed, Sep 3, 2003	45.80	46.10	45.15	45.23
1382	NASDAQ	PRDO	Tue, Sep 2, 2003	45.13	45.65	44.75	45.29
1381	NASDAQ	PRDO	Fri, Aug 29, 2003	45.65	45.95	44.76	45.04
1380	NASDAQ	PRDO	Thu, Aug 28, 2003	42.57	45.78	42.57	45.45
1379	NASDAQ	PRDO	Wed, Aug 27, 2003	43.31	43.55	42.44	43.01
1378	NASDAQ	PRDO	Tue, Aug 26, 2003	43.62	44.84	43.22	44.53
1377	NASDAQ	PRDO	Mon, Aug 25, 2003	45.05	45.07	43.52	43.91
1376	NASDAQ	PRDO	Fri, Aug 22, 2003	46.75	46.79	45.02	45.09
1375	NASDAQ	PRDO	Thu, Aug 21, 2003	46.37	46.98	46.06	46.50
1374	NASDAQ	PRDO	Wed, Aug 20, 2003	45.92	46.38	45.75	46.27
1373	NASDAQ	PRDO	Tue, Aug 19, 2003	46.27	46.36	45.46	46.35
1372	NASDAQ	PRDO	Mon, Aug 18, 2003	44.33	46.14	44.20	45.78
1371	NASDAQ	PRDO	Fri, Aug 15, 2003	44.38	44.78	43.62	44.10
1370	NASDAQ	PRDO	Thu, Aug 14, 2003	44.25	44.85	44.04	44.26
1369	NASDAQ	PRDO	Wed, Aug 13, 2003	43.09	44.24	43.03	44.23
1368	NASDAQ	PRDO	Tue, Aug 12, 2003	42.71	43.07	41.88	43.05
1367	NASDAQ	PRDO	Mon, Aug 11, 2003	42.05	42.60	41.63	42.51
1366	NASDAQ	PRDO	Fri, Aug 8, 2003	41.81	42.12	41.68	42.00
1365	NASDAQ	PRDO	Thu, Aug 7, 2003	40.93	41.90	40.40	41.75
1364	NASDAQ	PRDO	Wed, Aug 6, 2003	41.40	41.40	40.26	41.03
1363	NASDAQ	PRDO	Tue, Aug 5, 2003	41.88	41.94	41.11	41.37
1362	NASDAQ	PRDO	Mon, Aug 4, 2003	41.95	42.28	41.20	41.99
1361	NASDAQ	PRDO	Fri, Aug 1, 2003	41.55	42.00	40.83	41.90
1360	NASDAQ	PRDO	Thu, Jul 31, 2003	42.04	42.17	41.41	41.57
1359	NASDAQ	PRDO	Wed, Jul 30, 2003	41.70	42.12	41.31	41.78
1358	NASDAQ	PRDO	Tue, Jul 29, 2003	41.45	42.13	41.00	41.63
1357	NASDAQ	PRDO	Mon, Jul 28, 2003	41.05	42.15	41.03	41.30
1356	NASDAQ	PRDO	Fri, Jul 25, 2003	42.80	42.84	40.82	41.10
1355	NASDAQ	PRDO	Thu, Jul 24, 2003	41.31	43.44	41.13	42.31
1354	NASDAQ	PRDO	Wed, Jul 23, 2003	40.10	41.37	39.44	41.06
1353	NASDAQ	PRDO	Tue, Jul 22, 2003	36.48	36.67	36.04	36.49
1352	NASDAQ	PRDO	Mon, Jul 21, 2003	37.66	37.71	37.13	37.16
1351	NASDAQ	PRDO	Fri, Jul 18, 2003	36.65	37.94	36.51	37.71
1350	NASDAQ	PRDO	Thu, Jul 17, 2003	37.27	37.54	36.06	36.61
1349	NASDAQ	PRDO	Wed, Jul 16, 2003	38.23	38.50	37.19	37.28
1348	NASDAQ	PRDO	Tue, Jul 15, 2003	39.13	39.37	37.66	38.22
1347	NASDAQ	PRDO	Mon, Jul 14, 2003	38.70	39.49	38.57	38.83
1346	NASDAQ	PRDO	Fri, Jul 11, 2003	37.83	38.79	37.79	38.51
1345	NASDAQ	PRDO	Thu, Jul 10, 2003	37.20	37.89	37.20	37.76
1344	NASDAQ	PRDO	Wed, Jul 9, 2003	37.30	37.91	37.21	37.52
1343	NASDAQ	PRDO	Tue, Jul 8, 2003	36.68	37.54	36.58	37.30
1342	NASDAQ	PRDO	Mon, Jul 7, 2003	36.56	36.76	36.31	36.71
1341	NASDAQ	PRDO	Thu, Jul 3, 2003	36.42	36.91	36.15	36.39
1340	NASDAQ	PRDO	Wed, Jul 2, 2003	35.79	36.62	35.45	36.60
1339	NASDAQ	PRDO	Tue, Jul 1, 2003	34.18	35.74	34.08	35.73
1338	NASDAQ	PRDO	Mon, Jun 30, 2003	34.11	34.41	33.87	34.15
1337	NASDAQ	PRDO	Fri, Jun 27, 2003	33.21	34.13	33.13	33.87
1336	NASDAQ	PRDO	Thu, Jun 26, 2003	32.64	33.43	32.63	33.27
1335	NASDAQ	PRDO	Wed, Jun 25, 2003	32.27	33.00	31.92	32.65
1334	NASDAQ	PRDO	Tue, Jun 24, 2003	32.12	32.66	32.01	32.18
1333	NASDAQ	PRDO	Mon, Jun 23, 2003	32.87	32.88	31.68	32.11
1332	NASDAQ	PRDO	Fri, Jun 20, 2003	33.79	33.86	33.25	33.32
1331	NASDAQ	PRDO	Thu, Jun 19, 2003	34.66	34.67	33.04	33.46
1330	NASDAQ	PRDO	Wed, Jun 18, 2003	33.26	34.66	33.15	34.66
1329	NASDAQ	PRDO	Tue, Jun 17, 2003	32.91	33.52	32.41	33.35
1328	NASDAQ	PRDO	Mon, Jun 16, 2003	30.50	32.97	30.31	32.80
1327	NASDAQ	PRDO	Fri, Jun 13, 2003	30.39	30.45	29.98	30.25
1326	NASDAQ	PRDO	Thu, Jun 12, 2003	30.46	30.66	30.23	30.29
1325	NASDAQ	PRDO	Wed, Jun 11, 2003	30.60	30.77	30.35	30.56
1324	NASDAQ	PRDO	Tue, Jun 10, 2003	30.48	30.82	30.40	30.61
1323	NASDAQ	PRDO	Mon, Jun 9, 2003	31.40	31.42	30.41	30.50
1322	NASDAQ	PRDO	Fri, Jun 6, 2003	32.50	32.84	31.16	31.40
1321	NASDAQ	PRDO	Thu, Jun 5, 2003	31.20	32.54	31.00	32.41
1320	NASDAQ	PRDO	Wed, Jun 4, 2003	30.25	31.33	30.18	31.25
1319	NASDAQ	PRDO	Tue, Jun 3, 2003	30.49	30.67	30.15	30.22
1318	NASDAQ	PRDO	Mon, Jun 2, 2003	30.89	31.05	30.30	30.34
1317	NASDAQ	PRDO	Fri, May 30, 2003	30.15	30.72	30.15	30.70
1316	NASDAQ	PRDO	Thu, May 29, 2003	29.92	30.56	29.90	30.14
1315	NASDAQ	PRDO	Wed, May 28, 2003	29.57	30.30	29.57	29.94
1314	NASDAQ	PRDO	Tue, May 27, 2003	28.75	29.70	28.51	29.63
1313	NASDAQ	PRDO	Fri, May 23, 2003	28.91	28.95	28.51	28.70
1312	NASDAQ	PRDO	Thu, May 22, 2003	29.27	29.83	28.96	28.98
1311	NASDAQ	PRDO	Wed, May 21, 2003	28.92	29.39	28.62	29.32
1310	NASDAQ	PRDO	Tue, May 20, 2003	29.32	29.38	28.76	28.91
1309	NASDAQ	PRDO	Mon, May 19, 2003	30.08	30.13	29.15	29.35
1308	NASDAQ	PRDO	Fri, May 16, 2003	30.42	30.63	30.13	30.27
1307	NASDAQ	PRDO	Thu, May 15, 2003	30.49	30.79	30.48	30.56
1306	NASDAQ	PRDO	Wed, May 14, 2003	30.80	30.80	30.42	30.56
1305	NASDAQ	PRDO	Tue, May 13, 2003	30.98	31.00	30.65	30.82
1304	NASDAQ	PRDO	Mon, May 12, 2003	30.48	31.22	30.23	31.10
1303	NASDAQ	PRDO	Fri, May 9, 2003	30.01	30.65	30.01	30.40
1302	NASDAQ	PRDO	Thu, May 8, 2003	30.03	30.23	29.81	30.05
1301	NASDAQ	PRDO	Wed, May 7, 2003	30.28	30.37	30.00	30.20
1300	NASDAQ	PRDO	Tue, May 6, 2003	30.75	30.82	30.16	30.28
1299	NASDAQ	PRDO	Mon, May 5, 2003	30.33	31.00	30.32	30.57
1298	NASDAQ	PRDO	Fri, May 2, 2003	29.77	30.45	29.55	30.26
1297	NASDAQ	PRDO	Thu, May 1, 2003	29.91	30.08	29.52	29.65
1296	NASDAQ	PRDO	Wed, Apr 30, 2003	29.63	30.15	29.19	30.01
1295	NASDAQ	PRDO	Tue, Apr 29, 2003	29.34	29.54	29.00	29.41
1294	NASDAQ	PRDO	Mon, Apr 28, 2003	28.07	29.37	27.90	29.30
1293	NASDAQ	PRDO	Fri, Apr 25, 2003	29.02	29.10	27.96	28.05
1292	NASDAQ	PRDO	Thu, Apr 24, 2003	28.75	29.19	28.40	28.95
1291	NASDAQ	PRDO	Wed, Apr 23, 2003	27.48	29.37	27.30	28.97
1290	NASDAQ	PRDO	Tue, Apr 22, 2003	26.15	26.46	26.01	26.36
1289	NASDAQ	PRDO	Mon, Apr 21, 2003	26.58	26.58	25.91	26.08
1288	NASDAQ	PRDO	Thu, Apr 17, 2003	25.86	26.72	25.78	26.50
1287	NASDAQ	PRDO	Wed, Apr 16, 2003	27.06	27.15	25.49	25.83
1286	NASDAQ	PRDO	Tue, Apr 15, 2003	26.57	27.12	26.29	26.95
1285	NASDAQ	PRDO	Mon, Apr 14, 2003	25.53	26.83	25.46	26.57
1284	NASDAQ	PRDO	Fri, Apr 11, 2003	25.40	26.04	25.26	25.93
1283	NASDAQ	PRDO	Thu, Apr 10, 2003	25.25	25.47	25.05	25.36
1282	NASDAQ	PRDO	Wed, Apr 9, 2003	24.88	25.43	24.88	25.27
1281	NASDAQ	PRDO	Tue, Apr 8, 2003	25.33	25.36	24.74	24.88
1280	NASDAQ	PRDO	Mon, Apr 7, 2003	25.15	25.80	25.08	25.13
1279	NASDAQ	PRDO	Fri, Apr 4, 2003	25.61	25.72	24.92	25.23
1278	NASDAQ	PRDO	Thu, Apr 3, 2003	25.70	25.91	25.44	25.68
1277	NASDAQ	PRDO	Wed, Apr 2, 2003	25.48	26.30	25.43	25.68
1276	NASDAQ	PRDO	Tue, Apr 1, 2003	24.53	25.35	24.53	25.30
1275	NASDAQ	PRDO	Mon, Mar 31, 2003	24.58	24.72	23.79	24.46
1274	NASDAQ	PRDO	Fri, Mar 28, 2003	24.70	25.50	24.40	24.56
1273	NASDAQ	PRDO	Thu, Mar 27, 2003	24.13	25.17	24.04	24.70
1272	NASDAQ	PRDO	Wed, Mar 26, 2003	25.42	25.78	25.14	25.49
1271	NASDAQ	PRDO	Tue, Mar 25, 2003	24.55	25.68	23.85	25.37
1270	NASDAQ	PRDO	Mon, Mar 24, 2003	25.13	25.23	24.40	24.64
1269	NASDAQ	PRDO	Fri, Mar 21, 2003	25.20	25.73	25.16	25.51
1268	NASDAQ	PRDO	Thu, Mar 20, 2003	24.45	25.23	24.38	25.11
1267	NASDAQ	PRDO	Wed, Mar 19, 2003	24.05	24.76	24.03	24.47
1266	NASDAQ	PRDO	Tue, Mar 18, 2003	24.64	24.70	24.07	24.27
1265	NASDAQ	PRDO	Mon, Mar 17, 2003	23.74	24.81	23.71	24.63
1264	NASDAQ	PRDO	Fri, Mar 14, 2003	23.81	24.02	23.55	24.00
1263	NASDAQ	PRDO	Thu, Mar 13, 2003	23.21	23.77	23.11	23.77
1262	NASDAQ	PRDO	Wed, Mar 12, 2003	23.20	23.36	22.90	23.11
1261	NASDAQ	PRDO	Tue, Mar 11, 2003	23.15	23.63	22.86	23.34
1260	NASDAQ	PRDO	Mon, Mar 10, 2003	23.81	23.91	23.21	23.43
1259	NASDAQ	PRDO	Fri, Mar 7, 2003	23.35	23.90	23.03	23.86
1258	NASDAQ	PRDO	Thu, Mar 6, 2003	23.83	23.92	23.34	23.47
1257	NASDAQ	PRDO	Wed, Mar 5, 2003	23.42	23.97	23.42	23.89
1256	NASDAQ	PRDO	Tue, Mar 4, 2003	23.18	23.91	23.16	23.42
1255	NASDAQ	PRDO	Mon, Mar 3, 2003	23.37	23.64	23.17	23.31
1254	NASDAQ	PRDO	Fri, Feb 28, 2003	23.11	23.38	22.88	23.25
1253	NASDAQ	PRDO	Thu, Feb 27, 2003	22.60	23.03	22.60	22.93
1252	NASDAQ	PRDO	Wed, Feb 26, 2003	22.90	23.13	22.63	22.75
1251	NASDAQ	PRDO	Tue, Feb 25, 2003	22.98	22.99	22.61	22.84
1250	NASDAQ	PRDO	Mon, Feb 24, 2003	23.50	23.57	23.01	23.03
1249	NASDAQ	PRDO	Fri, Feb 21, 2003	22.93	23.50	22.71	23.42
1248	NASDAQ	PRDO	Thu, Feb 20, 2003	22.40	22.96	22.34	22.85
1247	NASDAQ	PRDO	Wed, Feb 19, 2003	23.17	23.18	22.38	22.53
1246	NASDAQ	PRDO	Tue, Feb 18, 2003	22.84	23.33	22.73	23.32
1245	NASDAQ	PRDO	Fri, Feb 14, 2003	23.01	23.16	22.58	22.78
1244	NASDAQ	PRDO	Thu, Feb 13, 2003	22.68	22.97	22.61	22.96
1243	NASDAQ	PRDO	Wed, Feb 12, 2003	23.43	23.53	22.60	22.69
1242	NASDAQ	PRDO	Tue, Feb 11, 2003	23.59	23.99	23.20	23.43
1241	NASDAQ	PRDO	Mon, Feb 10, 2003	23.66	23.90	23.03	23.58
1240	NASDAQ	PRDO	Fri, Feb 7, 2003	23.72	23.99	23.53	23.65
1239	NASDAQ	PRDO	Thu, Feb 6, 2003	23.56	23.81	23.20	23.70
1238	NASDAQ	PRDO	Wed, Feb 5, 2003	23.45	23.88	23.42	23.57
1237	NASDAQ	PRDO	Tue, Feb 4, 2003	23.41	23.74	23.23	23.46
1236	NASDAQ	PRDO	Mon, Feb 3, 2003	23.55	23.81	23.30	23.42
1235	NASDAQ	PRDO	Fri, Jan 31, 2003	23.24	23.66	23.00	23.45
1234	NASDAQ	PRDO	Thu, Jan 30, 2003	23.16	23.85	22.91	23.31
1233	NASDAQ	PRDO	Wed, Jan 29, 2003	21.49	23.29	21.46	23.22
1232	NASDAQ	PRDO	Tue, Jan 28, 2003	19.73	20.45	19.63	20.06
1231	NASDAQ	PRDO	Mon, Jan 27, 2003	19.10	19.77	19.03	19.63
1230	NASDAQ	PRDO	Fri, Jan 24, 2003	19.30	19.72	19.08	19.08
1229	NASDAQ	PRDO	Thu, Jan 23, 2003	19.18	19.83	19.18	19.34
1228	NASDAQ	PRDO	Wed, Jan 22, 2003	19.13	19.54	18.98	19.14
1227	NASDAQ	PRDO	Tue, Jan 21, 2003	19.63	19.82	18.95	19.13
1226	NASDAQ	PRDO	Fri, Jan 17, 2003	20.08	20.08	19.43	19.54
1225	NASDAQ	PRDO	Thu, Jan 16, 2003	20.71	20.94	19.99	20.11
1224	NASDAQ	PRDO	Wed, Jan 15, 2003	20.88	20.95	20.71	20.84
1223	NASDAQ	PRDO	Tue, Jan 14, 2003	20.72	21.01	20.63	20.88
1222	NASDAQ	PRDO	Mon, Jan 13, 2003	20.01	20.70	20.00	20.53
1221	NASDAQ	PRDO	Fri, Jan 10, 2003	20.03	20.06	19.85	19.98
1220	NASDAQ	PRDO	Thu, Jan 9, 2003	19.79	20.22	19.75	20.03
1219	NASDAQ	PRDO	Wed, Jan 8, 2003	20.65	20.67	19.74	19.75
1218	NASDAQ	PRDO	Tue, Jan 7, 2003	20.99	21.05	20.60	20.68
1217	NASDAQ	PRDO	Mon, Jan 6, 2003	20.78	21.17	20.78	21.00
1216	NASDAQ	PRDO	Fri, Jan 3, 2003	20.26	21.05	20.25	20.79
1215	NASDAQ	PRDO	Thu, Jan 2, 2003	20.00	20.51	20.00	20.50
1214	NASDAQ	PRDO	Tue, Dec 31, 2002	20.13	20.50	19.94	20.00
1213	NASDAQ	PRDO	Mon, Dec 30, 2002	20.37	20.48	20.04	20.15
1212	NASDAQ	PRDO	Fri, Dec 27, 2002	20.20	20.41	19.89	20.23
1211	NASDAQ	PRDO	Thu, Dec 26, 2002	20.20	20.49	20.10	20.18
1210	NASDAQ	PRDO	Tue, Dec 24, 2002	20.17	20.45	20.08	20.17
1209	NASDAQ	PRDO	Mon, Dec 23, 2002	19.94	20.13	19.73	20.12
1208	NASDAQ	PRDO	Fri, Dec 20, 2002	19.40	19.94	19.40	19.90
1207	NASDAQ	PRDO	Thu, Dec 19, 2002	19.47	20.10	19.30	19.42
1206	NASDAQ	PRDO	Wed, Dec 18, 2002	19.25	19.85	19.24	19.50
1205	NASDAQ	PRDO	Tue, Dec 17, 2002	19.47	19.47	18.91	19.03
1204	NASDAQ	PRDO	Mon, Dec 16, 2002	19.40	19.60	18.94	19.48
1203	NASDAQ	PRDO	Fri, Dec 13, 2002	20.38	20.38	19.30	19.42
1202	NASDAQ	PRDO	Thu, Dec 12, 2002	20.08	20.67	19.99	20.43
1201	NASDAQ	PRDO	Wed, Dec 11, 2002	19.83	20.12	19.63	20.02
1200	NASDAQ	PRDO	Tue, Dec 10, 2002	19.80	20.13	19.66	19.85
1199	NASDAQ	PRDO	Mon, Dec 9, 2002	19.65	20.04	19.42	19.44
1198	NASDAQ	PRDO	Fri, Dec 6, 2002	19.26	19.84	19.25	19.66
1197	NASDAQ	PRDO	Thu, Dec 5, 2002	20.00	20.01	19.18	19.25
1196	NASDAQ	PRDO	Wed, Dec 4, 2002	18.63	20.03	18.56	19.93
1195	NASDAQ	PRDO	Tue, Dec 3, 2002	18.74	18.97	18.40	18.68
1194	NASDAQ	PRDO	Mon, Dec 2, 2002	19.48	19.83	18.62	19.06
1193	NASDAQ	PRDO	Fri, Nov 29, 2002	19.49	19.50	19.26	19.46
1192	NASDAQ	PRDO	Wed, Nov 27, 2002	19.03	19.58	19.03	19.44
1191	NASDAQ	PRDO	Tue, Nov 26, 2002	19.57	19.85	19.02	19.02
1190	NASDAQ	PRDO	Mon, Nov 25, 2002	19.93	20.20	19.37	19.59
1189	NASDAQ	PRDO	Fri, Nov 22, 2002	20.21	20.23	19.72	19.96
1188	NASDAQ	PRDO	Thu, Nov 21, 2002	20.41	20.72	20.11	20.25
1187	NASDAQ	PRDO	Wed, Nov 20, 2002	20.76	21.05	20.15	20.45
1186	NASDAQ	PRDO	Tue, Nov 19, 2002	20.84	21.20	20.43	20.78
1185	NASDAQ	PRDO	Mon, Nov 18, 2002	21.38	21.70	20.88	20.93
1184	NASDAQ	PRDO	Fri, Nov 15, 2002	21.63	21.66	21.14	21.38
1183	NASDAQ	PRDO	Thu, Nov 14, 2002	21.75	22.23	21.39	21.62
1182	NASDAQ	PRDO	Wed, Nov 13, 2002	20.85	22.10	20.61	21.71
1181	NASDAQ	PRDO	Tue, Nov 12, 2002	20.76	21.38	20.53	20.84
1180	NASDAQ	PRDO	Mon, Nov 11, 2002	21.40	21.40	20.49	20.77
1179	NASDAQ	PRDO	Fri, Nov 8, 2002	20.99	21.50	20.52	21.21
1178	NASDAQ	PRDO	Thu, Nov 7, 2002	20.80	21.13	20.30	21.01
1177	NASDAQ	PRDO	Wed, Nov 6, 2002	20.25	20.98	19.92	20.80
1176	NASDAQ	PRDO	Tue, Nov 5, 2002	19.63	20.30	19.57	19.98
1175	NASDAQ	PRDO	Mon, Nov 4, 2002	21.45	21.53	18.78	19.66
1174	NASDAQ	PRDO	Fri, Nov 1, 2002	20.35	21.30	19.77	21.24
1173	NASDAQ	PRDO	Thu, Oct 31, 2002	21.40	21.83	19.20	20.06
1172	NASDAQ	PRDO	Wed, Oct 30, 2002	22.48	23.15	21.18	21.35
1171	NASDAQ	PRDO	Tue, Oct 29, 2002	22.78	22.79	21.92	22.06
1170	NASDAQ	PRDO	Mon, Oct 28, 2002	23.16	23.48	22.24	22.80
1169	NASDAQ	PRDO	Fri, Oct 25, 2002	22.50	23.11	22.45	23.10
1168	NASDAQ	PRDO	Thu, Oct 24, 2002	22.43	22.63	22.25	22.53
1167	NASDAQ	PRDO	Wed, Oct 23, 2002	21.68	22.36	21.68	22.31
1166	NASDAQ	PRDO	Tue, Oct 22, 2002	21.70	22.20	20.70	22.00
1165	NASDAQ	PRDO	Mon, Oct 21, 2002	25.05	26.25	25.05	26.20
1164	NASDAQ	PRDO	Fri, Oct 18, 2002	25.50	25.50	24.93	24.99
1163	NASDAQ	PRDO	Thu, Oct 17, 2002	25.48	25.93	25.28	25.49
1162	NASDAQ	PRDO	Wed, Oct 16, 2002	24.62	25.25	24.53	25.24
1161	NASDAQ	PRDO	Tue, Oct 15, 2002	24.63	25.42	24.63	24.90
1160	NASDAQ	PRDO	Mon, Oct 14, 2002	24.00	24.87	23.83	24.60
1159	NASDAQ	PRDO	Fri, Oct 11, 2002	24.28	25.00	23.95	24.05
1158	NASDAQ	PRDO	Thu, Oct 10, 2002	23.15	24.08	22.58	23.89
1157	NASDAQ	PRDO	Wed, Oct 9, 2002	23.40	23.69	23.00	23.13
1156	NASDAQ	PRDO	Tue, Oct 8, 2002	23.21	23.71	22.92	23.48
1155	NASDAQ	PRDO	Mon, Oct 7, 2002	22.68	23.43	22.68	22.92
1154	NASDAQ	PRDO	Fri, Oct 4, 2002	23.75	23.75	20.88	22.75
1153	NASDAQ	PRDO	Thu, Oct 3, 2002	24.75	24.79	24.13	24.17
1152	NASDAQ	PRDO	Wed, Oct 2, 2002	25.30	25.38	24.75	24.78
1151	NASDAQ	PRDO	Tue, Oct 1, 2002	24.85	25.55	24.47	25.52
1150	NASDAQ	PRDO	Mon, Sep 30, 2002	23.43	24.23	22.76	24.00
1149	NASDAQ	PRDO	Fri, Sep 27, 2002	23.93	24.33	23.23	23.37
1148	NASDAQ	PRDO	Thu, Sep 26, 2002	23.19	23.95	23.16	23.94
1147	NASDAQ	PRDO	Wed, Sep 25, 2002	22.75	23.32	22.09	23.10
1146	NASDAQ	PRDO	Tue, Sep 24, 2002	22.37	22.87	22.28	22.72
1145	NASDAQ	PRDO	Mon, Sep 23, 2002	22.85	22.85	22.43	22.53
1144	NASDAQ	PRDO	Fri, Sep 20, 2002	22.50	22.85	22.19	22.85
1143	NASDAQ	PRDO	Thu, Sep 19, 2002	22.73	22.90	22.33	22.42
1142	NASDAQ	PRDO	Wed, Sep 18, 2002	22.20	23.12	22.08	22.81
1141	NASDAQ	PRDO	Tue, Sep 17, 2002	22.50	22.89	22.05	22.32
1140	NASDAQ	PRDO	Mon, Sep 16, 2002	22.50	22.66	22.25	22.43
1139	NASDAQ	PRDO	Fri, Sep 13, 2002	22.30	22.58	22.00	22.50
1138	NASDAQ	PRDO	Thu, Sep 12, 2002	23.03	23.05	22.25	22.32
1137	NASDAQ	PRDO	Wed, Sep 11, 2002	23.52	23.77	22.96	23.09
1136	NASDAQ	PRDO	Tue, Sep 10, 2002	23.27	23.68	22.93	23.50
1135	NASDAQ	PRDO	Mon, Sep 9, 2002	22.83	23.29	22.64	23.24
1134	NASDAQ	PRDO	Fri, Sep 6, 2002	22.54	22.81	22.29	22.72
1133	NASDAQ	PRDO	Thu, Sep 5, 2002	22.65	22.81	22.26	22.51
1132	NASDAQ	PRDO	Wed, Sep 4, 2002	22.03	23.11	22.01	23.00
1131	NASDAQ	PRDO	Tue, Sep 3, 2002	22.27	22.50	21.84	22.13
1130	NASDAQ	PRDO	Fri, Aug 30, 2002	22.55	22.85	22.23	22.30
1129	NASDAQ	PRDO	Thu, Aug 29, 2002	20.83	22.70	20.73	22.52
1128	NASDAQ	PRDO	Wed, Aug 28, 2002	21.08	21.73	20.63	20.78
1127	NASDAQ	PRDO	Tue, Aug 27, 2002	22.16	22.19	20.71	20.98
1126	NASDAQ	PRDO	Mon, Aug 26, 2002	22.66	22.84	21.91	22.30
1125	NASDAQ	PRDO	Fri, Aug 23, 2002	22.85	23.00	22.20	22.30
1124	NASDAQ	PRDO	Thu, Aug 22, 2002	22.89	23.10	22.45	22.85
1123	NASDAQ	PRDO	Wed, Aug 21, 2002	23.30	23.55	22.70	22.99
1122	NASDAQ	PRDO	Tue, Aug 20, 2002	23.48	23.62	22.80	23.16
1121	NASDAQ	PRDO	Mon, Aug 19, 2002	23.80	23.91	22.65	23.30
1120	NASDAQ	PRDO	Fri, Aug 16, 2002	23.40	23.97	22.97	23.11
1119	NASDAQ	PRDO	Thu, Aug 15, 2002	22.30	23.57	22.13	23.50
1118	NASDAQ	PRDO	Wed, Aug 14, 2002	21.73	22.18	21.11	22.18
1117	NASDAQ	PRDO	Tue, Aug 13, 2002	21.85	22.45	21.62	21.68
1116	NASDAQ	PRDO	Mon, Aug 12, 2002	22.05	22.05	21.29	21.90
1115	NASDAQ	PRDO	Fri, Aug 9, 2002	21.84	22.73	21.50	22.05
1114	NASDAQ	PRDO	Thu, Aug 8, 2002	21.15	21.99	20.81	21.93
1113	NASDAQ	PRDO	Wed, Aug 7, 2002	21.13	21.48	20.53	21.31
1112	NASDAQ	PRDO	Tue, Aug 6, 2002	20.80	21.54	20.78	20.98
1111	NASDAQ	PRDO	Mon, Aug 5, 2002	21.39	21.40	20.45	20.68
1110	NASDAQ	PRDO	Fri, Aug 2, 2002	22.42	22.43	20.88	21.47
1109	NASDAQ	PRDO	Thu, Aug 1, 2002	21.95	22.75	21.66	22.38
1108	NASDAQ	PRDO	Wed, Jul 31, 2002	22.17	22.49	21.50	22.07
1107	NASDAQ	PRDO	Tue, Jul 30, 2002	22.25	22.52	21.55	22.12
1106	NASDAQ	PRDO	Mon, Jul 29, 2002	21.43	22.48	21.29	22.25
1105	NASDAQ	PRDO	Fri, Jul 26, 2002	20.88	21.23	20.30	21.17
1104	NASDAQ	PRDO	Thu, Jul 25, 2002	20.00	21.03	19.71	20.80
1103	NASDAQ	PRDO	Wed, Jul 24, 2002	18.88	20.25	18.63	19.89
1102	NASDAQ	PRDO	Tue, Jul 23, 2002	17.96	19.74	17.93	19.05
1101	NASDAQ	PRDO	Mon, Jul 22, 2002	17.18	17.50	16.51	16.63
1100	NASDAQ	PRDO	Fri, Jul 19, 2002	18.14	18.15	17.53	17.60
1099	NASDAQ	PRDO	Thu, Jul 18, 2002	17.70	18.41	17.70	18.32
1098	NASDAQ	PRDO	Wed, Jul 17, 2002	17.80	18.26	17.59	17.91
1097	NASDAQ	PRDO	Tue, Jul 16, 2002	18.60	19.56	17.59	17.90
1096	NASDAQ	PRDO	Mon, Jul 15, 2002	19.10	19.48	18.05	19.00
1095	NASDAQ	PRDO	Fri, Jul 12, 2002	19.78	20.03	19.06	19.44
1094	NASDAQ	PRDO	Thu, Jul 11, 2002	20.20	20.83	18.68	19.99
1093	NASDAQ	PRDO	Wed, Jul 10, 2002	21.70	21.85	20.25	20.34
1092	NASDAQ	PRDO	Tue, Jul 9, 2002	21.10	21.82	21.03	21.48
1091	NASDAQ	PRDO	Mon, Jul 8, 2002	21.83	21.88	20.88	21.12
1090	NASDAQ	PRDO	Fri, Jul 5, 2002	21.03	21.85	20.96	21.85
1089	NASDAQ	PRDO	Wed, Jul 3, 2002	21.40	21.65	20.12	21.09
1088	NASDAQ	PRDO	Tue, Jul 2, 2002	22.80	22.82	21.40	21.70
1087	NASDAQ	PRDO	Mon, Jul 1, 2002	22.46	22.82	22.06	22.67
1086	NASDAQ	PRDO	Fri, Jun 28, 2002	22.95	23.33	22.09	22.50
1085	NASDAQ	PRDO	Thu, Jun 27, 2002	22.66	23.00	22.46	23.00
1084	NASDAQ	PRDO	Wed, Jun 26, 2002	22.50	22.68	22.13	22.54
1083	NASDAQ	PRDO	Tue, Jun 25, 2002	23.81	24.11	22.78	23.00
1082	NASDAQ	PRDO	Mon, Jun 24, 2002	22.63	23.53	22.50	23.08
1081	NASDAQ	PRDO	Fri, Jun 21, 2002	22.13	22.88	22.12	22.55
1080	NASDAQ	PRDO	Thu, Jun 20, 2002	21.78	22.25	21.76	21.97
1079	NASDAQ	PRDO	Wed, Jun 19, 2002	21.96	22.17	21.70	21.77
1078	NASDAQ	PRDO	Tue, Jun 18, 2002	22.33	22.33	21.93	21.98
1077	NASDAQ	PRDO	Mon, Jun 17, 2002	22.14	22.50	22.11	22.17
1076	NASDAQ	PRDO	Fri, Jun 14, 2002	21.41	22.23	20.90	22.22
1075	NASDAQ	PRDO	Thu, Jun 13, 2002	22.19	22.33	21.46	21.48
1074	NASDAQ	PRDO	Wed, Jun 12, 2002	22.75	22.95	21.82	22.13
1073	NASDAQ	PRDO	Tue, Jun 11, 2002	22.33	23.04	22.33	22.64
1072	NASDAQ	PRDO	Mon, Jun 10, 2002	22.36	22.81	22.21	22.37
1071	NASDAQ	PRDO	Fri, Jun 7, 2002	21.74	22.50	21.52	22.36
1070	NASDAQ	PRDO	Thu, Jun 6, 2002	21.78	22.25	21.66	21.80
1069	NASDAQ	PRDO	Wed, Jun 5, 2002	21.75	22.10	21.60	21.75
1068	NASDAQ	PRDO	Tue, Jun 4, 2002	22.04	22.24	21.42	21.74
1067	NASDAQ	PRDO	Mon, Jun 3, 2002	21.95	22.29	21.74	22.06
1066	NASDAQ	PRDO	Fri, May 31, 2002	21.44	22.11	21.40	21.80
1065	NASDAQ	PRDO	Thu, May 30, 2002	21.52	21.63	21.36	21.51
1064	NASDAQ	PRDO	Wed, May 29, 2002	21.56	21.70	21.31	21.55
1063	NASDAQ	PRDO	Tue, May 28, 2002	21.86	22.15	21.39	21.75
1062	NASDAQ	PRDO	Fri, May 24, 2002	21.88	21.92	21.49	21.83
1061	NASDAQ	PRDO	Thu, May 23, 2002	21.37	21.87	21.34	21.82
1060	NASDAQ	PRDO	Wed, May 22, 2002	21.18	21.40	21.05	21.30
1059	NASDAQ	PRDO	Tue, May 21, 2002	21.55	21.68	20.90	21.25
1058	NASDAQ	PRDO	Mon, May 20, 2002	22.24	22.25	21.40	21.51
1057	NASDAQ	PRDO	Fri, May 17, 2002	22.45	22.62	22.05	22.07
1056	NASDAQ	PRDO	Thu, May 16, 2002	22.55	22.60	22.00	22.43
1055	NASDAQ	PRDO	Wed, May 15, 2002	22.61	23.15	22.40	22.50
1054	NASDAQ	PRDO	Tue, May 14, 2002	21.97	22.90	21.92	22.54
1053	NASDAQ	PRDO	Mon, May 13, 2002	21.51	22.00	21.23	21.92
1052	NASDAQ	PRDO	Fri, May 10, 2002	22.22	22.22	21.50	21.75
1051	NASDAQ	PRDO	Thu, May 9, 2002	22.63	22.63	22.00	22.10
1050	NASDAQ	PRDO	Wed, May 8, 2002	22.45	22.60	22.23	22.53
1049	NASDAQ	PRDO	Tue, May 7, 2002	22.44	22.69	22.18	22.36
1048	NASDAQ	PRDO	Mon, May 6, 2002	22.23	22.68	22.15	22.33
1047	NASDAQ	PRDO	Fri, May 3, 2002	22.68	22.93	22.05	22.07
1046	NASDAQ	PRDO	Thu, May 2, 2002	22.01	22.45	22.01	22.40
1045	NASDAQ	PRDO	Wed, May 1, 2002	22.26	22.40	21.72	22.00
1044	NASDAQ	PRDO	Tue, Apr 30, 2002	21.83	22.68	21.74	22.48
1043	NASDAQ	PRDO	Mon, Apr 29, 2002	22.24	22.33	21.74	21.77
1042	NASDAQ	PRDO	Fri, Apr 26, 2002	22.35	22.48	22.05	22.20
1041	NASDAQ	PRDO	Thu, Apr 25, 2002	22.38	22.52	21.88	22.26
1040	NASDAQ	PRDO	Wed, Apr 24, 2002	22.29	22.72	21.81	22.38
1039	NASDAQ	PRDO	Tue, Apr 23, 2002	20.80	22.74	20.79	22.31
1038	NASDAQ	PRDO	Mon, Apr 22, 2002	20.53	20.59	19.52	19.88
1037	NASDAQ	PRDO	Fri, Apr 19, 2002	19.80	20.75	19.73	20.38
1036	NASDAQ	PRDO	Thu, Apr 18, 2002	20.24	20.24	19.57	19.95
1035	NASDAQ	PRDO	Wed, Apr 17, 2002	20.48	20.79	20.23	20.24
1034	NASDAQ	PRDO	Tue, Apr 16, 2002	20.65	20.68	20.27	20.55
1033	NASDAQ	PRDO	Mon, Apr 15, 2002	20.88	21.09	20.28	20.49
1032	NASDAQ	PRDO	Fri, Apr 12, 2002	20.40	20.72	19.94	20.67
1031	NASDAQ	PRDO	Thu, Apr 11, 2002	21.11	21.20	20.00	20.13
1030	NASDAQ	PRDO	Wed, Apr 10, 2002	20.77	21.31	20.63	20.85
1029	NASDAQ	PRDO	Tue, Apr 9, 2002	20.75	21.00	20.65	20.70
1028	NASDAQ	PRDO	Mon, Apr 8, 2002	20.22	20.75	19.96	20.69
1027	NASDAQ	PRDO	Fri, Apr 5, 2002	19.94	20.46	19.88	20.20
1026	NASDAQ	PRDO	Thu, Apr 4, 2002	19.57	19.97	19.55	19.97
1025	NASDAQ	PRDO	Wed, Apr 3, 2002	20.05	20.30	19.30	19.56
1024	NASDAQ	PRDO	Tue, Apr 2, 2002	19.75	20.06	19.54	19.99
1023	NASDAQ	PRDO	Mon, Apr 1, 2002	19.88	19.94	19.00	19.75
1022	NASDAQ	PRDO	Thu, Mar 28, 2002	20.01	20.12	19.78	19.80
1021	NASDAQ	PRDO	Wed, Mar 27, 2002	19.51	20.11	19.51	19.98
1020	NASDAQ	PRDO	Tue, Mar 26, 2002	19.08	19.58	18.94	19.48
1019	NASDAQ	PRDO	Mon, Mar 25, 2002	19.00	19.05	18.75	19.04
1018	NASDAQ	PRDO	Fri, Mar 22, 2002	19.30	19.45	18.81	18.84
1017	NASDAQ	PRDO	Thu, Mar 21, 2002	19.11	19.68	19.04	19.30
1016	NASDAQ	PRDO	Wed, Mar 20, 2002	19.23	19.53	19.02	19.17
1015	NASDAQ	PRDO	Tue, Mar 19, 2002	18.63	19.76	18.41	19.33
1014	NASDAQ	PRDO	Mon, Mar 18, 2002	18.72	19.00	18.28	18.52
1013	NASDAQ	PRDO	Fri, Mar 15, 2002	18.63	18.78	18.28	18.59
1012	NASDAQ	PRDO	Thu, Mar 14, 2002	18.18	19.00	18.18	18.75
1011	NASDAQ	PRDO	Wed, Mar 13, 2002	18.15	18.53	17.89	18.25
1010	NASDAQ	PRDO	Tue, Mar 12, 2002	18.45	18.59	17.50	18.27
1009	NASDAQ	PRDO	Mon, Mar 11, 2002	19.15	19.28	18.36	18.48
1008	NASDAQ	PRDO	Fri, Mar 8, 2002	18.75	19.20	18.63	19.13
1007	NASDAQ	PRDO	Thu, Mar 7, 2002	18.97	19.26	18.50	18.66
1006	NASDAQ	PRDO	Wed, Mar 6, 2002	18.85	19.00	18.17	18.91
1005	NASDAQ	PRDO	Tue, Mar 5, 2002	19.43	19.70	18.81	18.81
1004	NASDAQ	PRDO	Mon, Mar 4, 2002	18.70	19.70	18.70	19.21
1003	NASDAQ	PRDO	Fri, Mar 1, 2002	18.67	18.79	18.23	18.77
1002	NASDAQ	PRDO	Thu, Feb 28, 2002	18.98	19.07	18.50	18.50
1001	NASDAQ	PRDO	Wed, Feb 27, 2002	19.05	19.35	18.85	18.87
1000	NASDAQ	PRDO	Tue, Feb 26, 2002	18.50	19.49	18.45	19.00
999	NASDAQ	PRDO	Mon, Feb 25, 2002	18.35	18.59	17.87	18.53
998	NASDAQ	PRDO	Fri, Feb 22, 2002	17.73	18.33	17.43	18.32
997	NASDAQ	PRDO	Thu, Feb 21, 2002	18.25	18.45	17.55	17.55
996	NASDAQ	PRDO	Wed, Feb 20, 2002	17.28	18.31	17.23	18.30
995	NASDAQ	PRDO	Tue, Feb 19, 2002	18.05	18.06	16.80	17.19
994	NASDAQ	PRDO	Fri, Feb 15, 2002	18.30	18.30	17.57	17.70
993	NASDAQ	PRDO	Thu, Feb 14, 2002	18.31	18.47	18.11	18.16
992	NASDAQ	PRDO	Wed, Feb 13, 2002	18.45	18.85	18.08	18.21
991	NASDAQ	PRDO	Tue, Feb 12, 2002	18.45	18.59	18.13	18.50
990	NASDAQ	PRDO	Mon, Feb 11, 2002	18.03	18.58	17.98	18.58
989	NASDAQ	PRDO	Fri, Feb 8, 2002	18.24	18.25	17.56	18.00
988	NASDAQ	PRDO	Thu, Feb 7, 2002	18.45	18.70	17.88	17.94
987	NASDAQ	PRDO	Wed, Feb 6, 2002	18.25	18.87	18.15	18.40
986	NASDAQ	PRDO	Tue, Feb 5, 2002	17.70	18.43	17.15	18.18
985	NASDAQ	PRDO	Mon, Feb 4, 2002	18.54	18.79	17.65	17.80
984	NASDAQ	PRDO	Fri, Feb 1, 2002	17.90	18.55	17.62	18.54
983	NASDAQ	PRDO	Thu, Jan 31, 2002	17.15	17.26	16.40	16.50
982	NASDAQ	PRDO	Wed, Jan 30, 2002	16.24	17.25	15.70	17.08
981	NASDAQ	PRDO	Tue, Jan 29, 2002	16.13	16.23	15.93	16.13
980	NASDAQ	PRDO	Mon, Jan 28, 2002	15.74	15.94	15.65	15.88
979	NASDAQ	PRDO	Fri, Jan 25, 2002	15.99	16.04	15.60	15.73
978	NASDAQ	PRDO	Thu, Jan 24, 2002	15.50	16.08	15.50	15.93
977	NASDAQ	PRDO	Wed, Jan 23, 2002	15.10	15.64	15.01	15.53
976	NASDAQ	PRDO	Tue, Jan 22, 2002	15.23	15.78	15.00	15.10
975	NASDAQ	PRDO	Fri, Jan 18, 2002	15.98	15.98	15.06	15.24
974	NASDAQ	PRDO	Thu, Jan 17, 2002	15.96	16.38	15.40	15.72
973	NASDAQ	PRDO	Wed, Jan 16, 2002	16.15	16.16	15.71	15.83
972	NASDAQ	PRDO	Tue, Jan 15, 2002	16.33	16.38	15.90	16.02
971	NASDAQ	PRDO	Mon, Jan 14, 2002	16.07	16.79	15.85	16.09
970	NASDAQ	PRDO	Fri, Jan 11, 2002	17.02	17.12	16.35	16.35
969	NASDAQ	PRDO	Thu, Jan 10, 2002	16.63	17.04	16.40	17.04
968	NASDAQ	PRDO	Wed, Jan 9, 2002	17.15	17.46	16.65	16.72
967	NASDAQ	PRDO	Tue, Jan 8, 2002	16.81	17.75	16.63	17.15
966	NASDAQ	PRDO	Mon, Jan 7, 2002	17.30	17.43	16.85	16.85
965	NASDAQ	PRDO	Fri, Jan 4, 2002	17.25	17.53	17.20	17.43
964	NASDAQ	PRDO	Thu, Jan 3, 2002	17.20	17.70	17.04	17.25
963	NASDAQ	PRDO	Wed, Jan 2, 2002	17.33	17.33	16.50	17.20
962	NASDAQ	PRDO	Mon, Dec 31, 2001	17.56	17.98	17.08	17.14
961	NASDAQ	PRDO	Fri, Dec 28, 2001	17.78	18.09	17.45	17.49
960	NASDAQ	PRDO	Thu, Dec 27, 2001	17.76	18.14	17.75	17.93
959	NASDAQ	PRDO	Wed, Dec 26, 2001	18.10	18.23	17.85	18.05
958	NASDAQ	PRDO	Mon, Dec 24, 2001	17.75	18.12	17.75	18.00
957	NASDAQ	PRDO	Fri, Dec 21, 2001	17.10	18.00	17.05	17.77
956	NASDAQ	PRDO	Thu, Dec 20, 2001	17.03	17.38	16.54	17.18
955	NASDAQ	PRDO	Wed, Dec 19, 2001	17.27	17.48	16.92	17.10
954	NASDAQ	PRDO	Tue, Dec 18, 2001	17.95	18.08	17.13	17.48
953	NASDAQ	PRDO	Mon, Dec 17, 2001	17.55	18.26	17.52	18.05
952	NASDAQ	PRDO	Fri, Dec 14, 2001	17.85	17.85	17.35	17.48
951	NASDAQ	PRDO	Thu, Dec 13, 2001	16.98	17.86	16.76	17.79
950	NASDAQ	PRDO	Wed, Dec 12, 2001	16.98	17.31	16.83	17.10
949	NASDAQ	PRDO	Tue, Dec 11, 2001	17.05	17.25	16.82	16.82
948	NASDAQ	PRDO	Mon, Dec 10, 2001	17.00	17.32	16.91	16.99
947	NASDAQ	PRDO	Fri, Dec 7, 2001	16.85	17.40	16.83	16.86
946	NASDAQ	PRDO	Thu, Dec 6, 2001	16.11	17.57	16.00	17.45
945	NASDAQ	PRDO	Wed, Dec 5, 2001	15.60	16.39	15.48	16.12
944	NASDAQ	PRDO	Tue, Dec 4, 2001	15.94	15.98	15.48	15.50
943	NASDAQ	PRDO	Mon, Dec 3, 2001	15.60	15.97	15.42	15.57
942	NASDAQ	PRDO	Fri, Nov 30, 2001	15.39	15.88	15.30	15.64
941	NASDAQ	PRDO	Thu, Nov 29, 2001	14.79	15.77	14.79	15.38
940	NASDAQ	PRDO	Wed, Nov 28, 2001	15.20	15.24	14.56	14.79
939	NASDAQ	PRDO	Tue, Nov 27, 2001	14.99	15.30	14.59	15.12
938	NASDAQ	PRDO	Mon, Nov 26, 2001	14.33	15.01	14.21	15.00
937	NASDAQ	PRDO	Fri, Nov 23, 2001	14.30	14.49	14.25	14.32
936	NASDAQ	PRDO	Wed, Nov 21, 2001	14.15	14.55	14.11	14.23
935	NASDAQ	PRDO	Tue, Nov 20, 2001	14.10	14.85	13.98	14.04
934	NASDAQ	PRDO	Mon, Nov 19, 2001	14.12	14.73	13.86	13.96
933	NASDAQ	PRDO	Fri, Nov 16, 2001	13.87	14.20	13.83	13.95
932	NASDAQ	PRDO	Thu, Nov 15, 2001	13.68	14.10	13.50	13.86
931	NASDAQ	PRDO	Wed, Nov 14, 2001	14.55	14.72	13.37	13.65
930	NASDAQ	PRDO	Tue, Nov 13, 2001	15.85	16.50	14.27	14.40
929	NASDAQ	PRDO	Mon, Nov 12, 2001	15.56	15.75	15.27	15.75
928	NASDAQ	PRDO	Fri, Nov 9, 2001	15.16	16.00	15.15	15.55
927	NASDAQ	PRDO	Thu, Nov 8, 2001	16.03	16.25	15.01	15.20
926	NASDAQ	PRDO	Wed, Nov 7, 2001	15.64	16.39	15.29	15.98
925	NASDAQ	PRDO	Tue, Nov 6, 2001	15.00	15.88	14.88	15.82
924	NASDAQ	PRDO	Mon, Nov 5, 2001	14.30	15.50	14.30	14.98
923	NASDAQ	PRDO	Fri, Nov 2, 2001	14.85	14.85	14.06	14.37
922	NASDAQ	PRDO	Thu, Nov 1, 2001	13.52	15.22	13.35	14.84
921	NASDAQ	PRDO	Wed, Oct 31, 2001	13.18	13.49	12.84	13.04
920	NASDAQ	PRDO	Tue, Oct 30, 2001	13.71	13.94	12.90	13.18
919	NASDAQ	PRDO	Mon, Oct 29, 2001	13.75	13.98	13.37	13.86
918	NASDAQ	PRDO	Fri, Oct 26, 2001	13.51	14.33	13.45	13.75
917	NASDAQ	PRDO	Thu, Oct 25, 2001	12.82	13.85	12.51	13.55
916	NASDAQ	PRDO	Wed, Oct 24, 2001	12.96	13.25	12.49	12.98
915	NASDAQ	PRDO	Tue, Oct 23, 2001	12.85	13.00	11.95	12.80
914	NASDAQ	PRDO	Mon, Oct 22, 2001	12.73	13.04	12.65	12.80
913	NASDAQ	PRDO	Fri, Oct 19, 2001	13.37	13.60	12.68	12.88
912	NASDAQ	PRDO	Thu, Oct 18, 2001	13.08	13.97	13.08	13.45
911	NASDAQ	PRDO	Wed, Oct 17, 2001	14.12	14.15	11.44	13.53
910	NASDAQ	PRDO	Tue, Oct 16, 2001	14.04	14.49	13.88	14.02
909	NASDAQ	PRDO	Mon, Oct 15, 2001	13.97	14.50	13.68	14.03
908	NASDAQ	PRDO	Fri, Oct 12, 2001	14.82	14.85	13.89	14.00
907	NASDAQ	PRDO	Thu, Oct 11, 2001	15.39	15.51	14.50	14.86
906	NASDAQ	PRDO	Wed, Oct 10, 2001	14.73	15.39	14.45	14.95
905	NASDAQ	PRDO	Tue, Oct 9, 2001	14.98	15.35	14.58	14.63
904	NASDAQ	PRDO	Mon, Oct 8, 2001	15.38	15.38	14.56	14.98
903	NASDAQ	PRDO	Fri, Oct 5, 2001	16.20	16.20	15.20	15.80
902	NASDAQ	PRDO	Thu, Oct 4, 2001	15.90	16.78	15.60	16.29
901	NASDAQ	PRDO	Wed, Oct 3, 2001	13.70	16.03	13.68	15.58
900	NASDAQ	PRDO	Tue, Oct 2, 2001	13.90	14.68	13.36	14.00
899	NASDAQ	PRDO	Mon, Oct 1, 2001	13.69	13.90	12.75	13.83
898	NASDAQ	PRDO	Fri, Sep 28, 2001	13.34	14.45	13.19	13.75
897	NASDAQ	PRDO	Thu, Sep 27, 2001	13.53	13.53	13.02	13.23
896	NASDAQ	PRDO	Wed, Sep 26, 2001	13.75	13.81	13.32	13.56
895	NASDAQ	PRDO	Tue, Sep 25, 2001	12.42	13.74	12.19	13.65
894	NASDAQ	PRDO	Mon, Sep 24, 2001	11.50	12.44	11.45	12.39
893	NASDAQ	PRDO	Fri, Sep 21, 2001	11.64	11.75	10.85	11.34
892	NASDAQ	PRDO	Thu, Sep 20, 2001	12.00	12.11	11.54	11.78
891	NASDAQ	PRDO	Wed, Sep 19, 2001	12.95	13.16	11.38	12.18
890	NASDAQ	PRDO	Tue, Sep 18, 2001	12.25	13.36	12.15	12.90
889	NASDAQ	PRDO	Mon, Sep 17, 2001	12.44	12.50	12.01	12.22
888	NASDAQ	PRDO	Mon, Sep 10, 2001	13.00	13.08	11.69	13.02
887	NASDAQ	PRDO	Fri, Sep 7, 2001	13.13	13.48	12.78	13.14
886	NASDAQ	PRDO	Thu, Sep 6, 2001	13.64	13.95	12.95	13.13
885	NASDAQ	PRDO	Wed, Sep 5, 2001	14.65	14.95	13.33	13.64
884	NASDAQ	PRDO	Tue, Sep 4, 2001	14.24	14.90	14.00	14.45
883	NASDAQ	PRDO	Fri, Aug 31, 2001	15.97	15.97	14.07	14.44
882	NASDAQ	PRDO	Thu, Aug 30, 2001	16.25	16.61	15.86	16.56
881	NASDAQ	PRDO	Wed, Aug 29, 2001	16.20	16.47	16.06	16.24
880	NASDAQ	PRDO	Tue, Aug 28, 2001	16.13	16.80	16.13	16.18
879	NASDAQ	PRDO	Mon, Aug 27, 2001	15.58	16.12	15.55	16.10
878	NASDAQ	PRDO	Fri, Aug 24, 2001	15.85	16.27	15.53	15.70
877	NASDAQ	PRDO	Thu, Aug 23, 2001	16.09	16.15	15.83	15.85
876	NASDAQ	PRDO	Wed, Aug 22, 2001	16.47	16.47	15.83	16.03
875	NASDAQ	PRDO	Tue, Aug 21, 2001	16.44	16.80	16.22	16.26
874	NASDAQ	PRDO	Mon, Aug 20, 2001	15.43	16.39	15.42	16.39
873	NASDAQ	PRDO	Fri, Aug 17, 2001	15.65	15.73	15.31	15.42
872	NASDAQ	PRDO	Thu, Aug 16, 2001	15.40	15.69	15.39	15.61
871	NASDAQ	PRDO	Wed, Aug 15, 2001	15.30	15.66	15.26	15.40
870	NASDAQ	PRDO	Tue, Aug 14, 2001	15.13	15.44	15.06	15.12
869	NASDAQ	PRDO	Mon, Aug 13, 2001	15.25	15.48	15.11	15.17
868	NASDAQ	PRDO	Fri, Aug 10, 2001	15.62	16.03	15.04	15.12
867	NASDAQ	PRDO	Thu, Aug 9, 2001	15.32	15.85	15.25	15.75
866	NASDAQ	PRDO	Wed, Aug 8, 2001	16.08	16.20	15.00	15.49
865	NASDAQ	PRDO	Tue, Aug 7, 2001	15.75	16.25	15.67	15.99
864	NASDAQ	PRDO	Mon, Aug 6, 2001	16.08	16.33	15.73	15.77
863	NASDAQ	PRDO	Fri, Aug 3, 2001	16.02	16.22	15.90	16.01
862	NASDAQ	PRDO	Thu, Aug 2, 2001	16.38	16.77	16.02	16.22
861	NASDAQ	PRDO	Wed, Aug 1, 2001	15.40	16.13	15.32	16.08
860	NASDAQ	PRDO	Tue, Jul 31, 2001	15.51	15.51	14.59	15.25
859	NASDAQ	PRDO	Mon, Jul 30, 2001	15.68	15.86	15.00	15.39
858	NASDAQ	PRDO	Fri, Jul 27, 2001	14.94	15.80	14.59	15.70
857	NASDAQ	PRDO	Thu, Jul 26, 2001	14.63	14.94	14.46	14.94
856	NASDAQ	PRDO	Wed, Jul 25, 2001	14.75	15.05	14.43	14.82
855	NASDAQ	PRDO	Tue, Jul 24, 2001	15.25	15.37	14.88	15.13
854	NASDAQ	PRDO	Mon, Jul 23, 2001	15.56	15.97	15.31	15.48
853	NASDAQ	PRDO	Fri, Jul 20, 2001	15.78	15.78	15.43	15.63
852	NASDAQ	PRDO	Thu, Jul 19, 2001	16.01	16.26	15.57	15.69
851	NASDAQ	PRDO	Wed, Jul 18, 2001	16.36	16.38	15.86	15.93
850	NASDAQ	PRDO	Tue, Jul 17, 2001	15.87	16.50	15.79	16.38
849	NASDAQ	PRDO	Mon, Jul 16, 2001	15.46	16.13	15.29	15.78
848	NASDAQ	PRDO	Fri, Jul 13, 2001	15.72	15.72	15.04	15.44
847	NASDAQ	PRDO	Thu, Jul 12, 2001	15.20	16.01	15.00	15.69
846	NASDAQ	PRDO	Wed, Jul 11, 2001	15.37	15.38	14.92	14.99
845	NASDAQ	PRDO	Tue, Jul 10, 2001	14.89	15.86	14.89	15.28
844	NASDAQ	PRDO	Mon, Jul 9, 2001	14.63	15.02	14.63	14.82
843	NASDAQ	PRDO	Fri, Jul 6, 2001	14.45	14.98	14.44	14.61
842	NASDAQ	PRDO	Thu, Jul 5, 2001	14.48	14.78	14.34	14.44
841	NASDAQ	PRDO	Tue, Jul 3, 2001	14.23	14.79	14.23	14.79
840	NASDAQ	PRDO	Mon, Jul 2, 2001	14.71	14.83	14.18	14.29
839	NASDAQ	PRDO	Fri, Jun 29, 2001	15.19	15.21	14.69	14.98
838	NASDAQ	PRDO	Thu, Jun 28, 2001	15.34	15.34	14.99	15.00
837	NASDAQ	PRDO	Wed, Jun 27, 2001	14.35	15.31	14.35	15.14
836	NASDAQ	PRDO	Tue, Jun 26, 2001	14.80	14.85	14.30	14.78
835	NASDAQ	PRDO	Mon, Jun 25, 2001	13.94	14.98	13.75	14.72
834	NASDAQ	PRDO	Fri, Jun 22, 2001	13.80	14.12	13.75	13.97
833	NASDAQ	PRDO	Thu, Jun 21, 2001	14.44	14.47	13.86	14.19
832	NASDAQ	PRDO	Wed, Jun 20, 2001	13.49	14.54	13.25	14.46
831	NASDAQ	PRDO	Tue, Jun 19, 2001	13.75	13.75	13.25	13.25
830	NASDAQ	PRDO	Mon, Jun 18, 2001	13.54	13.80	13.48	13.49
829	NASDAQ	PRDO	Fri, Jun 15, 2001	13.49	13.54	13.39	13.50
828	NASDAQ	PRDO	Thu, Jun 14, 2001	13.76	13.76	13.44	13.49
827	NASDAQ	PRDO	Wed, Jun 13, 2001	13.00	13.86	12.77	13.66
826	NASDAQ	PRDO	Tue, Jun 12, 2001	12.78	12.95	12.63	12.86
825	NASDAQ	PRDO	Mon, Jun 11, 2001	13.32	13.43	13.00	13.00
824	NASDAQ	PRDO	Fri, Jun 8, 2001	13.60	13.75	13.19	13.30
823	NASDAQ	PRDO	Thu, Jun 7, 2001	13.83	13.83	13.02	13.56
822	NASDAQ	PRDO	Wed, Jun 6, 2001	13.63	13.94	13.63	13.75
821	NASDAQ	PRDO	Tue, Jun 5, 2001	13.24	14.03	13.22	13.66
820	NASDAQ	PRDO	Mon, Jun 4, 2001	13.38	13.38	13.08	13.18
819	NASDAQ	PRDO	Fri, Jun 1, 2001	12.63	13.26	12.63	12.98
818	NASDAQ	PRDO	Thu, May 31, 2001	13.21	13.30	12.59	12.59
817	NASDAQ	PRDO	Wed, May 30, 2001	12.69	13.30	12.45	13.00
816	NASDAQ	PRDO	Tue, May 29, 2001	12.33	12.73	12.25	12.61
815	NASDAQ	PRDO	Fri, May 25, 2001	12.52	12.58	12.30	12.37
814	NASDAQ	PRDO	Thu, May 24, 2001	12.53	12.68	12.48	12.52
813	NASDAQ	PRDO	Wed, May 23, 2001	12.48	12.55	12.43	12.53
812	NASDAQ	PRDO	Tue, May 22, 2001	12.44	12.59	12.36	12.55
811	NASDAQ	PRDO	Mon, May 21, 2001	12.23	12.43	12.21	12.40
810	NASDAQ	PRDO	Fri, May 18, 2001	12.20	12.40	12.20	12.25
809	NASDAQ	PRDO	Thu, May 17, 2001	12.56	12.56	11.89	12.28
808	NASDAQ	PRDO	Wed, May 16, 2001	12.65	12.65	12.36	12.50
807	NASDAQ	PRDO	Tue, May 15, 2001	12.74	12.78	12.58	12.70
806	NASDAQ	PRDO	Mon, May 14, 2001	12.73	12.91	12.67	12.75
805	NASDAQ	PRDO	Fri, May 11, 2001	12.64	12.75	12.52	12.63
804	NASDAQ	PRDO	Thu, May 10, 2001	12.43	12.70	12.43	12.58
803	NASDAQ	PRDO	Wed, May 9, 2001	12.25	12.50	12.13	12.49
802	NASDAQ	PRDO	Tue, May 8, 2001	12.68	12.81	11.95	12.40
801	NASDAQ	PRDO	Mon, May 7, 2001	12.70	12.88	12.60	12.69
800	NASDAQ	PRDO	Fri, May 4, 2001	12.50	12.84	12.42	12.73
799	NASDAQ	PRDO	Thu, May 3, 2001	13.13	13.13	12.70	12.71
798	NASDAQ	PRDO	Wed, May 2, 2001	13.35	13.39	12.86	13.14
797	NASDAQ	PRDO	Tue, May 1, 2001	13.13	13.59	12.89	13.30
796	NASDAQ	PRDO	Mon, Apr 30, 2001	13.63	13.75	12.46	12.59
795	NASDAQ	PRDO	Fri, Apr 27, 2001	13.11	13.39	12.96	13.25
794	NASDAQ	PRDO	Thu, Apr 26, 2001	12.66	13.56	12.65	13.00
793	NASDAQ	PRDO	Wed, Apr 25, 2001	12.03	12.51	12.02	12.51
792	NASDAQ	PRDO	Tue, Apr 24, 2001	12.02	12.51	11.98	12.04
791	NASDAQ	PRDO	Mon, Apr 23, 2001	11.80	12.14	11.80	11.98
790	NASDAQ	PRDO	Fri, Apr 20, 2001	12.32	12.39	11.80	11.94
789	NASDAQ	PRDO	Thu, Apr 19, 2001	12.23	12.56	12.14	12.45
788	NASDAQ	PRDO	Wed, Apr 18, 2001	12.31	12.46	12.10	12.18
787	NASDAQ	PRDO	Tue, Apr 17, 2001	11.83	12.13	11.64	11.96
786	NASDAQ	PRDO	Mon, Apr 16, 2001	12.51	12.51	11.65	11.78
785	NASDAQ	PRDO	Thu, Apr 12, 2001	11.94	12.51	11.94	12.51
784	NASDAQ	PRDO	Wed, Apr 11, 2001	12.53	12.59	11.98	11.98
783	NASDAQ	PRDO	Tue, Apr 10, 2001	12.48	12.64	12.38	12.51
782	NASDAQ	PRDO	Mon, Apr 9, 2001	12.31	12.53	12.18	12.44
781	NASDAQ	PRDO	Fri, Apr 6, 2001	11.83	12.41	11.81	12.25
780	NASDAQ	PRDO	Thu, Apr 5, 2001	11.75	12.09	11.73	11.94
779	NASDAQ	PRDO	Wed, Apr 4, 2001	11.38	12.09	11.36	11.56
778	NASDAQ	PRDO	Tue, Apr 3, 2001	12.33	12.33	11.38	11.63
777	NASDAQ	PRDO	Mon, Apr 2, 2001	12.56	12.56	12.00	12.13
776	NASDAQ	PRDO	Fri, Mar 30, 2001	12.61	12.63	12.09	12.56
775	NASDAQ	PRDO	Thu, Mar 29, 2001	12.50	12.66	12.47	12.52
774	NASDAQ	PRDO	Wed, Mar 28, 2001	12.52	12.75	12.19	12.50
773	NASDAQ	PRDO	Tue, Mar 27, 2001	12.53	12.81	12.25	12.70
772	NASDAQ	PRDO	Mon, Mar 26, 2001	12.22	12.53	12.06	12.45
771	NASDAQ	PRDO	Fri, Mar 23, 2001	11.90	12.28	11.84	12.11
770	NASDAQ	PRDO	Thu, Mar 22, 2001	11.50	11.86	11.50	11.80
769	NASDAQ	PRDO	Wed, Mar 21, 2001	11.50	11.63	11.16	11.53
768	NASDAQ	PRDO	Tue, Mar 20, 2001	11.78	11.94	11.72	11.72
767	NASDAQ	PRDO	Mon, Mar 19, 2001	11.28	11.78	11.28	11.75
766	NASDAQ	PRDO	Fri, Mar 16, 2001	11.20	11.64	11.19	11.31
765	NASDAQ	PRDO	Thu, Mar 15, 2001	10.50	11.38	10.50	11.28
764	NASDAQ	PRDO	Wed, Mar 14, 2001	9.97	10.66	9.97	10.47
763	NASDAQ	PRDO	Tue, Mar 13, 2001	10.84	10.94	9.63	10.23
762	NASDAQ	PRDO	Mon, Mar 12, 2001	10.88	11.12	10.75	10.94
761	NASDAQ	PRDO	Fri, Mar 9, 2001	11.03	11.13	10.47	11.11
760	NASDAQ	PRDO	Thu, Mar 8, 2001	11.26	11.28	11.03	11.13
759	NASDAQ	PRDO	Wed, Mar 7, 2001	11.28	11.28	11.09	11.27
758	NASDAQ	PRDO	Tue, Mar 6, 2001	11.08	11.31	11.02	11.25
757	NASDAQ	PRDO	Mon, Mar 5, 2001	11.19	11.28	10.66	11.00
756	NASDAQ	PRDO	Fri, Mar 2, 2001	10.97	11.33	10.94	11.08
755	NASDAQ	PRDO	Thu, Mar 1, 2001	11.16	11.25	10.97	10.97
754	NASDAQ	PRDO	Wed, Feb 28, 2001	11.63	11.78	11.06	11.41
753	NASDAQ	PRDO	Tue, Feb 27, 2001	11.63	11.75	11.31	11.69
752	NASDAQ	PRDO	Mon, Feb 26, 2001	10.86	11.80	10.63	11.77
751	NASDAQ	PRDO	Fri, Feb 23, 2001	11.07	11.19	10.11	11.19
750	NASDAQ	PRDO	Thu, Feb 22, 2001	11.86	11.86	11.06	11.42
749	NASDAQ	PRDO	Wed, Feb 21, 2001	11.70	12.13	11.64	11.67
748	NASDAQ	PRDO	Tue, Feb 20, 2001	11.50	12.19	11.50	11.81
747	NASDAQ	PRDO	Fri, Feb 16, 2001	11.57	11.77	11.50	11.50
746	NASDAQ	PRDO	Thu, Feb 15, 2001	11.75	11.86	11.69	11.75
745	NASDAQ	PRDO	Wed, Feb 14, 2001	11.25	11.94	11.25	11.67
744	NASDAQ	PRDO	Tue, Feb 13, 2001	10.75	11.31	10.75	11.13
743	NASDAQ	PRDO	Mon, Feb 12, 2001	11.19	11.33	10.44	10.88
742	NASDAQ	PRDO	Fri, Feb 9, 2001	11.13	11.31	11.13	11.27
741	NASDAQ	PRDO	Thu, Feb 8, 2001	11.53	11.56	10.94	11.06
740	NASDAQ	PRDO	Wed, Feb 7, 2001	11.72	11.84	11.49	11.52
739	NASDAQ	PRDO	Tue, Feb 6, 2001	11.91	12.09	11.63	11.73
738	NASDAQ	PRDO	Mon, Feb 5, 2001	12.38	12.48	11.84	11.91
737	NASDAQ	PRDO	Fri, Feb 2, 2001	12.08	12.55	11.80	12.44
736	NASDAQ	PRDO	Thu, Feb 1, 2001	11.06	12.38	11.06	12.25
735	NASDAQ	PRDO	Wed, Jan 31, 2001	10.78	11.25	10.61	10.63
734	NASDAQ	PRDO	Tue, Jan 30, 2001	9.55	10.78	9.44	10.78
733	NASDAQ	PRDO	Mon, Jan 29, 2001	9.31	9.55	8.81	9.55
732	NASDAQ	PRDO	Fri, Jan 26, 2001	8.81	8.94	8.50	8.78
731	NASDAQ	PRDO	Thu, Jan 25, 2001	9.11	9.13	8.81	8.81
730	NASDAQ	PRDO	Wed, Jan 24, 2001	9.28	9.28	8.97	9.03
729	NASDAQ	PRDO	Tue, Jan 23, 2001	8.52	9.36	8.42	9.11
728	NASDAQ	PRDO	Mon, Jan 22, 2001	8.55	8.67	8.38	8.56
727	NASDAQ	PRDO	Fri, Jan 19, 2001	9.25	9.28	8.31	8.50
726	NASDAQ	PRDO	Thu, Jan 18, 2001	9.59	9.59	8.75	8.84
725	NASDAQ	PRDO	Wed, Jan 17, 2001	9.67	9.94	9.25	9.31
724	NASDAQ	PRDO	Tue, Jan 16, 2001	8.27	9.89	8.25	9.66
723	NASDAQ	PRDO	Fri, Jan 12, 2001	9.55	9.55	8.25	8.25
722	NASDAQ	PRDO	Thu, Jan 11, 2001	9.11	10.00	9.09	9.55
721	NASDAQ	PRDO	Wed, Jan 10, 2001	7.95	9.50	7.95	9.38
720	NASDAQ	PRDO	Tue, Jan 9, 2001	8.25	8.25	7.73	7.95
719	NASDAQ	PRDO	Mon, Jan 8, 2001	8.97	8.97	7.97	8.08
718	NASDAQ	PRDO	Fri, Jan 5, 2001	9.63	9.63	8.69	8.94
717	NASDAQ	PRDO	Thu, Jan 4, 2001	10.25	10.28	9.56	9.63
716	NASDAQ	PRDO	Wed, Jan 3, 2001	9.97	10.37	9.94	10.13
715	NASDAQ	PRDO	Tue, Jan 2, 2001	9.50	10.05	9.41	10.05
714	NASDAQ	PRDO	Fri, Dec 29, 2000	9.78	9.97	9.56	9.78
713	NASDAQ	PRDO	Thu, Dec 28, 2000	10.25	10.25	9.63	9.75
712	NASDAQ	PRDO	Wed, Dec 27, 2000	9.63	10.31	9.38	10.31
711	NASDAQ	PRDO	Tue, Dec 26, 2000	9.50	10.21	9.50	9.94
710	NASDAQ	PRDO	Fri, Dec 22, 2000	8.34	10.22	8.34	10.13
709	NASDAQ	PRDO	Thu, Dec 21, 2000	8.29	8.97	7.59	8.72
708	NASDAQ	PRDO	Wed, Dec 20, 2000	8.94	9.00	8.25	8.38
707	NASDAQ	PRDO	Tue, Dec 19, 2000	9.75	9.98	8.94	8.95
706	NASDAQ	PRDO	Mon, Dec 18, 2000	9.27	9.92	9.13	9.88
705	NASDAQ	PRDO	Fri, Dec 15, 2000	8.88	9.28	8.88	9.19
704	NASDAQ	PRDO	Thu, Dec 14, 2000	8.97	9.03	8.94	9.00
703	NASDAQ	PRDO	Wed, Dec 13, 2000	9.25	9.25	9.00	9.00
702	NASDAQ	PRDO	Tue, Dec 12, 2000	9.53	9.69	9.19	9.19
701	NASDAQ	PRDO	Mon, Dec 11, 2000	9.31	9.56	9.19	9.45
700	NASDAQ	PRDO	Fri, Dec 8, 2000	9.31	9.36	9.23	9.33
699	NASDAQ	PRDO	Thu, Dec 7, 2000	9.41	9.41	9.19	9.23
698	NASDAQ	PRDO	Wed, Dec 6, 2000	9.31	9.63	9.31	9.41
697	NASDAQ	PRDO	Tue, Dec 5, 2000	8.81	9.63	8.72	9.63
696	NASDAQ	PRDO	Mon, Dec 4, 2000	8.63	8.66	8.34	8.59
695	NASDAQ	PRDO	Fri, Dec 1, 2000	9.00	9.34	8.50	8.63
694	NASDAQ	PRDO	Thu, Nov 30, 2000	9.56	9.59	8.94	8.98
693	NASDAQ	PRDO	Wed, Nov 29, 2000	8.50	9.59	8.50	9.50
692	NASDAQ	PRDO	Tue, Nov 28, 2000	8.23	8.63	8.23	8.56
691	NASDAQ	PRDO	Mon, Nov 27, 2000	8.00	8.38	7.98	8.27
690	NASDAQ	PRDO	Fri, Nov 24, 2000	7.75	8.17	7.75	8.13
689	NASDAQ	PRDO	Wed, Nov 22, 2000	7.84	7.94	7.69	7.78
688	NASDAQ	PRDO	Tue, Nov 21, 2000	7.25	7.88	7.25	7.84
687	NASDAQ	PRDO	Mon, Nov 20, 2000	7.25	7.75	7.02	7.28
686	NASDAQ	PRDO	Fri, Nov 17, 2000	7.30	7.53	7.08	7.31
685	NASDAQ	PRDO	Thu, Nov 16, 2000	7.38	7.50	7.30	7.47
684	NASDAQ	PRDO	Wed, Nov 15, 2000	7.25	7.75	7.25	7.59
683	NASDAQ	PRDO	Tue, Nov 14, 2000	7.75	7.78	7.41	7.50
682	NASDAQ	PRDO	Mon, Nov 13, 2000	7.78	7.78	7.38	7.69
681	NASDAQ	PRDO	Fri, Nov 10, 2000	7.47	8.03	7.47	7.78
680	NASDAQ	PRDO	Thu, Nov 9, 2000	7.75	8.06	7.38	7.98
679	NASDAQ	PRDO	Wed, Nov 8, 2000	8.19	8.19	7.38	7.38
678	NASDAQ	PRDO	Tue, Nov 7, 2000	8.23	8.23	7.95	7.95
677	NASDAQ	PRDO	Mon, Nov 6, 2000	8.25	8.50	8.14	8.25
676	NASDAQ	PRDO	Fri, Nov 3, 2000	8.50	8.55	8.22	8.41
675	NASDAQ	PRDO	Thu, Nov 2, 2000	8.73	8.95	7.66	8.53
674	NASDAQ	PRDO	Wed, Nov 1, 2000	9.39	9.63	8.55	8.73
673	NASDAQ	PRDO	Tue, Oct 31, 2000	9.53	9.75	9.38	9.67
672	NASDAQ	PRDO	Mon, Oct 30, 2000	9.68	9.72	9.34	9.53
671	NASDAQ	PRDO	Fri, Oct 27, 2000	8.80	9.80	8.80	9.50
670	NASDAQ	PRDO	Thu, Oct 26, 2000	8.25	9.81	8.25	9.00
669	NASDAQ	PRDO	Wed, Oct 25, 2000	6.51	8.64	6.50	8.28
668	NASDAQ	PRDO	Tue, Oct 24, 2000	8.19	8.88	8.19	8.66
667	NASDAQ	PRDO	Mon, Oct 23, 2000	8.02	8.41	8.00	8.25
666	NASDAQ	PRDO	Fri, Oct 20, 2000	9.19	9.19	7.44	8.00
665	NASDAQ	PRDO	Thu, Oct 19, 2000	9.13	9.20	9.00	9.06
664	NASDAQ	PRDO	Wed, Oct 18, 2000	9.19	9.22	9.00	9.05
663	NASDAQ	PRDO	Tue, Oct 17, 2000	9.34	9.69	9.34	9.56
662	NASDAQ	PRDO	Mon, Oct 16, 2000	9.43	9.77	9.22	9.50
661	NASDAQ	PRDO	Fri, Oct 13, 2000	8.79	9.53	8.78	9.53
660	NASDAQ	PRDO	Thu, Oct 12, 2000	10.51	10.52	8.81	8.81
659	NASDAQ	PRDO	Wed, Oct 11, 2000	10.75	10.75	10.31	10.31
658	NASDAQ	PRDO	Tue, Oct 10, 2000	10.58	10.78	10.50	10.73
657	NASDAQ	PRDO	Mon, Oct 9, 2000	10.31	10.66	10.31	10.63
656	NASDAQ	PRDO	Fri, Oct 6, 2000	10.63	10.63	10.31	10.42
655	NASDAQ	PRDO	Thu, Oct 5, 2000	10.75	10.78	10.56	10.63
654	NASDAQ	PRDO	Wed, Oct 4, 2000	10.26	10.81	10.25	10.47
653	NASDAQ	PRDO	Tue, Oct 3, 2000	10.85	11.11	9.97	10.53
652	NASDAQ	PRDO	Mon, Oct 2, 2000	11.23	11.38	10.88	10.88
651	NASDAQ	PRDO	Fri, Sep 29, 2000	10.25	11.31	10.16	11.13
650	NASDAQ	PRDO	Thu, Sep 28, 2000	9.81	10.69	9.69	10.31
649	NASDAQ	PRDO	Wed, Sep 27, 2000	9.50	9.81	9.41	9.81
648	NASDAQ	PRDO	Tue, Sep 26, 2000	9.67	10.06	9.31	9.53
647	NASDAQ	PRDO	Mon, Sep 25, 2000	9.48	9.75	9.47	9.75
646	NASDAQ	PRDO	Fri, Sep 22, 2000	9.66	9.69	9.47	9.53
645	NASDAQ	PRDO	Thu, Sep 21, 2000	9.71	9.81	9.59	9.66
644	NASDAQ	PRDO	Wed, Sep 20, 2000	9.95	10.00	9.63	9.69
643	NASDAQ	PRDO	Tue, Sep 19, 2000	9.92	10.03	9.84	10.00
642	NASDAQ	PRDO	Mon, Sep 18, 2000	9.70	10.00	9.56	9.91
641	NASDAQ	PRDO	Fri, Sep 15, 2000	9.66	9.88	9.09	9.88
640	NASDAQ	PRDO	Thu, Sep 14, 2000	9.94	9.97	9.70	9.91
639	NASDAQ	PRDO	Wed, Sep 13, 2000	9.46	10.09	9.31	9.69
638	NASDAQ	PRDO	Tue, Sep 12, 2000	8.78	9.56	8.75	9.47
637	NASDAQ	PRDO	Mon, Sep 11, 2000	8.45	8.88	8.44	8.73
636	NASDAQ	PRDO	Fri, Sep 8, 2000	8.73	8.94	8.28	8.50
635	NASDAQ	PRDO	Thu, Sep 7, 2000	9.84	9.88	8.84	8.88
634	NASDAQ	PRDO	Wed, Sep 6, 2000	10.29	10.30	9.81	9.88
633	NASDAQ	PRDO	Tue, Sep 5, 2000	10.52	10.78	10.28	10.30
632	NASDAQ	PRDO	Fri, Sep 1, 2000	9.94	10.50	9.89	10.47
631	NASDAQ	PRDO	Thu, Aug 31, 2000	9.06	10.02	9.06	9.98
630	NASDAQ	PRDO	Wed, Aug 30, 2000	8.91	9.13	8.91	8.95
629	NASDAQ	PRDO	Tue, Aug 29, 2000	9.05	9.13	8.84	9.00
628	NASDAQ	PRDO	Mon, Aug 28, 2000	8.80	9.31	8.56	8.97
627	NASDAQ	PRDO	Fri, Aug 25, 2000	8.30	8.61	8.30	8.50
626	NASDAQ	PRDO	Thu, Aug 24, 2000	8.25	8.31	8.22	8.29
625	NASDAQ	PRDO	Wed, Aug 23, 2000	8.21	8.27	8.20	8.22
624	NASDAQ	PRDO	Tue, Aug 22, 2000	8.26	8.27	8.19	8.22
623	NASDAQ	PRDO	Mon, Aug 21, 2000	8.26	8.31	8.22	8.25
622	NASDAQ	PRDO	Fri, Aug 18, 2000	8.41	8.42	8.13	8.13
621	NASDAQ	PRDO	Thu, Aug 17, 2000	7.94	8.41	7.89	8.33
620	NASDAQ	PRDO	Wed, Aug 16, 2000	7.91	7.98	7.90	7.91
619	NASDAQ	PRDO	Tue, Aug 15, 2000	8.07	8.07	7.83	7.88
618	NASDAQ	PRDO	Mon, Aug 14, 2000	8.25	8.27	7.87	8.00
617	NASDAQ	PRDO	Fri, Aug 11, 2000	7.72	8.22	7.71	8.16
616	NASDAQ	PRDO	Thu, Aug 10, 2000	7.72	7.78	7.67	7.73
615	NASDAQ	PRDO	Wed, Aug 9, 2000	7.69	7.72	7.67	7.71
614	NASDAQ	PRDO	Tue, Aug 8, 2000	7.73	7.73	7.66	7.67
613	NASDAQ	PRDO	Mon, Aug 7, 2000	7.55	7.77	7.50	7.67
612	NASDAQ	PRDO	Fri, Aug 4, 2000	7.31	7.61	7.30	7.49
611	NASDAQ	PRDO	Thu, Aug 3, 2000	7.46	7.58	7.28	7.31
610	NASDAQ	PRDO	Wed, Aug 2, 2000	7.34	7.55	7.34	7.55
609	NASDAQ	PRDO	Tue, Aug 1, 2000	7.14	7.63	7.09	7.44
608	NASDAQ	PRDO	Mon, Jul 31, 2000	6.72	7.25	6.71	7.14
607	NASDAQ	PRDO	Fri, Jul 28, 2000	6.64	6.73	6.57	6.72
606	NASDAQ	PRDO	Thu, Jul 27, 2000	6.73	6.73	6.58	6.72
605	NASDAQ	PRDO	Wed, Jul 26, 2000	6.73	6.73	6.56	6.73
604	NASDAQ	PRDO	Tue, Jul 25, 2000	6.59	6.73	6.52	6.73
603	NASDAQ	PRDO	Mon, Jul 24, 2000	6.59	6.67	6.52	6.53
602	NASDAQ	PRDO	Fri, Jul 21, 2000	6.63	6.65	6.59	6.59
601	NASDAQ	PRDO	Thu, Jul 20, 2000	6.59	6.67	6.58	6.60
600	NASDAQ	PRDO	Wed, Jul 19, 2000	6.69	6.69	6.59	6.59
599	NASDAQ	PRDO	Tue, Jul 18, 2000	6.59	6.66	6.58	6.61
598	NASDAQ	PRDO	Mon, Jul 17, 2000	6.69	6.75	6.59	6.59
597	NASDAQ	PRDO	Fri, Jul 14, 2000	6.69	6.77	6.64	6.69
596	NASDAQ	PRDO	Thu, Jul 13, 2000	6.53	6.75	6.45	6.64
595	NASDAQ	PRDO	Wed, Jul 12, 2000	6.53	6.59	6.41	6.41
594	NASDAQ	PRDO	Tue, Jul 11, 2000	6.63	6.63	6.38	6.50
593	NASDAQ	PRDO	Mon, Jul 10, 2000	6.77	6.78	6.72	6.75
592	NASDAQ	PRDO	Fri, Jul 7, 2000	6.34	6.75	6.34	6.73
591	NASDAQ	PRDO	Thu, Jul 6, 2000	6.13	6.33	6.13	6.31
590	NASDAQ	PRDO	Wed, Jul 5, 2000	6.08	6.16	6.05	6.13
589	NASDAQ	PRDO	Mon, Jul 3, 2000	6.07	6.11	6.03	6.05
588	NASDAQ	PRDO	Fri, Jun 30, 2000	6.00	6.16	6.00	6.06
587	NASDAQ	PRDO	Thu, Jun 29, 2000	6.01	6.05	5.98	6.05
586	NASDAQ	PRDO	Wed, Jun 28, 2000	6.02	6.05	5.97	6.00
585	NASDAQ	PRDO	Tue, Jun 27, 2000	6.00	6.02	5.94	5.97
584	NASDAQ	PRDO	Mon, Jun 26, 2000	5.70	6.08	5.64	6.00
583	NASDAQ	PRDO	Fri, Jun 23, 2000	5.75	5.75	5.63	5.66
582	NASDAQ	PRDO	Thu, Jun 22, 2000	5.63	5.75	5.63	5.73
581	NASDAQ	PRDO	Wed, Jun 21, 2000	5.61	5.73	5.61	5.73
580	NASDAQ	PRDO	Tue, Jun 20, 2000	5.61	5.61	5.56	5.61
579	NASDAQ	PRDO	Mon, Jun 19, 2000	5.56	5.64	5.50	5.61
578	NASDAQ	PRDO	Fri, Jun 16, 2000	5.58	5.58	5.45	5.56
577	NASDAQ	PRDO	Thu, Jun 15, 2000	5.60	5.62	5.52	5.52
576	NASDAQ	PRDO	Wed, Jun 14, 2000	5.64	5.64	5.55	5.62
575	NASDAQ	PRDO	Tue, Jun 13, 2000	5.52	5.64	5.52	5.64
574	NASDAQ	PRDO	Mon, Jun 12, 2000	5.63	5.64	5.50	5.60
573	NASDAQ	PRDO	Fri, Jun 9, 2000	5.33	5.63	5.25	5.63
572	NASDAQ	PRDO	Thu, Jun 8, 2000	5.59	5.60	5.23	5.38
571	NASDAQ	PRDO	Wed, Jun 7, 2000	5.40	5.56	5.40	5.56
570	NASDAQ	PRDO	Tue, Jun 6, 2000	5.17	5.47	5.17	5.41
569	NASDAQ	PRDO	Mon, Jun 5, 2000	5.18	5.25	5.16	5.18
568	NASDAQ	PRDO	Fri, Jun 2, 2000	5.09	5.20	5.01	5.20
567	NASDAQ	PRDO	Thu, Jun 1, 2000	4.99	5.13	4.97	5.12
566	NASDAQ	PRDO	Wed, May 31, 2000	5.02	5.03	4.97	5.03
565	NASDAQ	PRDO	Tue, May 30, 2000	4.83	5.00	4.83	4.95
564	NASDAQ	PRDO	Fri, May 26, 2000	4.72	4.94	4.70	4.93
563	NASDAQ	PRDO	Thu, May 25, 2000	4.81	4.88	4.75	4.77
562	NASDAQ	PRDO	Wed, May 24, 2000	4.89	4.95	4.84	4.95
561	NASDAQ	PRDO	Tue, May 23, 2000	4.98	5.02	4.89	4.91
560	NASDAQ	PRDO	Mon, May 22, 2000	4.89	4.98	4.88	4.97
559	NASDAQ	PRDO	Fri, May 19, 2000	4.84	5.02	4.84	5.00
558	NASDAQ	PRDO	Thu, May 18, 2000	4.84	4.91	4.84	4.91
557	NASDAQ	PRDO	Wed, May 17, 2000	4.91	4.99	4.84	4.84
556	NASDAQ	PRDO	Tue, May 16, 2000	4.95	5.00	4.89	4.89
555	NASDAQ	PRDO	Mon, May 15, 2000	4.94	4.95	4.89	4.91
554	NASDAQ	PRDO	Fri, May 12, 2000	4.91	5.05	4.91	4.96
553	NASDAQ	PRDO	Thu, May 11, 2000	4.80	5.03	4.80	4.97
552	NASDAQ	PRDO	Wed, May 10, 2000	4.77	4.79	4.73	4.74
551	NASDAQ	PRDO	Tue, May 9, 2000	4.61	4.89	4.61	4.77
550	NASDAQ	PRDO	Mon, May 8, 2000	4.38	4.69	4.38	4.63
549	NASDAQ	PRDO	Fri, May 5, 2000	4.18	4.84	4.18	4.70
548	NASDAQ	PRDO	Thu, May 4, 2000	4.26	4.27	3.89	4.01
547	NASDAQ	PRDO	Wed, May 3, 2000	4.50	4.50	4.28	4.28
546	NASDAQ	PRDO	Tue, May 2, 2000	4.58	4.66	4.50	4.52
545	NASDAQ	PRDO	Mon, May 1, 2000	4.64	4.74	4.64	4.69
544	NASDAQ	PRDO	Fri, Apr 28, 2000	4.55	4.79	4.55	4.73
543	NASDAQ	PRDO	Thu, Apr 27, 2000	4.27	4.75	4.25	4.75
542	NASDAQ	PRDO	Wed, Apr 26, 2000	4.18	4.47	4.18	4.31
541	NASDAQ	PRDO	Tue, Apr 25, 2000	3.69	4.13	3.69	4.13
540	NASDAQ	PRDO	Mon, Apr 24, 2000	3.69	3.69	3.50	3.58
539	NASDAQ	PRDO	Thu, Apr 20, 2000	4.00	4.31	3.50	3.50
538	NASDAQ	PRDO	Wed, Apr 19, 2000	4.35	4.49	3.92	3.92
537	NASDAQ	PRDO	Tue, Apr 18, 2000	4.50	4.56	4.30	4.30
536	NASDAQ	PRDO	Mon, Apr 17, 2000	4.50	4.50	4.30	4.50
535	NASDAQ	PRDO	Fri, Apr 14, 2000	4.48	4.48	4.30	4.30
534	NASDAQ	PRDO	Thu, Apr 13, 2000	4.45	4.56	4.45	4.55
533	NASDAQ	PRDO	Wed, Apr 12, 2000	4.50	4.63	4.27	4.31
532	NASDAQ	PRDO	Tue, Apr 11, 2000	4.63	4.63	4.50	4.62
531	NASDAQ	PRDO	Mon, Apr 10, 2000	4.55	4.62	4.53	4.53
530	NASDAQ	PRDO	Fri, Apr 7, 2000	4.49	4.55	4.49	4.55
529	NASDAQ	PRDO	Thu, Apr 6, 2000	4.38	4.47	4.38	4.47
528	NASDAQ	PRDO	Wed, Apr 5, 2000	4.40	4.41	4.31	4.33
527	NASDAQ	PRDO	Tue, Apr 4, 2000	4.35	4.43	4.31	4.35
526	NASDAQ	PRDO	Mon, Apr 3, 2000	4.42	4.42	4.38	4.42
525	NASDAQ	PRDO	Fri, Mar 31, 2000	4.31	4.38	4.31	4.38
524	NASDAQ	PRDO	Thu, Mar 30, 2000	4.41	4.41	4.33	4.37
523	NASDAQ	PRDO	Wed, Mar 29, 2000	4.39	4.43	4.38	4.43
522	NASDAQ	PRDO	Tue, Mar 28, 2000	4.38	4.40	4.38	4.39
521	NASDAQ	PRDO	Mon, Mar 27, 2000	4.34	4.44	4.34	4.44
520	NASDAQ	PRDO	Fri, Mar 24, 2000	4.39	4.41	4.36	4.38
519	NASDAQ	PRDO	Thu, Mar 23, 2000	4.40	4.40	4.36	4.39
518	NASDAQ	PRDO	Wed, Mar 22, 2000	4.28	4.41	4.28	4.39
517	NASDAQ	PRDO	Tue, Mar 21, 2000	4.19	4.34	4.19	4.33
516	NASDAQ	PRDO	Mon, Mar 20, 2000	4.30	4.34	4.24	4.34
515	NASDAQ	PRDO	Fri, Mar 17, 2000	3.94	4.33	3.94	4.30
514	NASDAQ	PRDO	Thu, Mar 16, 2000	4.44	4.44	3.89	3.89
513	NASDAQ	PRDO	Wed, Mar 15, 2000	4.44	4.44	4.41	4.44
512	NASDAQ	PRDO	Tue, Mar 14, 2000	4.42	4.56	4.42	4.50
511	NASDAQ	PRDO	Mon, Mar 13, 2000	4.41	4.41	4.41	4.41
510	NASDAQ	PRDO	Fri, Mar 10, 2000	4.69	4.69	4.48	4.50
509	NASDAQ	PRDO	Thu, Mar 9, 2000	4.66	4.69	4.63	4.69
508	NASDAQ	PRDO	Wed, Mar 8, 2000	4.63	4.77	4.63	4.65
507	NASDAQ	PRDO	Tue, Mar 7, 2000	4.69	4.77	4.63	4.76
506	NASDAQ	PRDO	Mon, Mar 6, 2000	4.89	4.89	4.66	4.74
505	NASDAQ	PRDO	Fri, Mar 3, 2000	4.97	4.97	4.88	4.88
504	NASDAQ	PRDO	Thu, Mar 2, 2000	4.63	4.94	4.63	4.94
503	NASDAQ	PRDO	Wed, Mar 1, 2000	4.63	4.69	4.63	4.69
502	NASDAQ	PRDO	Tue, Feb 29, 2000	4.63	4.69	4.53	4.69
501	NASDAQ	PRDO	Mon, Feb 28, 2000	4.58	4.78	4.50	4.63
500	NASDAQ	PRDO	Fri, Feb 25, 2000	4.52	4.88	4.47	4.66
499	NASDAQ	PRDO	Thu, Feb 24, 2000	4.69	4.69	4.47	4.47
498	NASDAQ	PRDO	Wed, Feb 23, 2000	4.75	4.80	4.69	4.69
497	NASDAQ	PRDO	Tue, Feb 22, 2000	4.69	4.69	4.56	4.69
496	NASDAQ	PRDO	Fri, Feb 18, 2000	4.75	4.75	4.56	4.69
495	NASDAQ	PRDO	Thu, Feb 17, 2000	4.65	4.75	4.56	4.59
494	NASDAQ	PRDO	Wed, Feb 16, 2000	4.53	4.72	4.50	4.63
493	NASDAQ	PRDO	Tue, Feb 15, 2000	4.53	4.73	4.53	4.73
492	NASDAQ	PRDO	Mon, Feb 14, 2000	4.50	4.63	4.48	4.53
491	NASDAQ	PRDO	Fri, Feb 11, 2000	4.56	4.68	4.52	4.52
490	NASDAQ	PRDO	Thu, Feb 10, 2000	4.47	4.67	4.47	4.60
489	NASDAQ	PRDO	Wed, Feb 9, 2000	4.80	4.80	4.50	4.55
488	NASDAQ	PRDO	Tue, Feb 8, 2000	4.89	4.89	4.73	4.73
487	NASDAQ	PRDO	Mon, Feb 7, 2000	4.84	4.94	4.78	4.78
486	NASDAQ	PRDO	Fri, Feb 4, 2000	4.94	4.94	4.84	4.91
485	NASDAQ	PRDO	Thu, Feb 3, 2000	4.83	4.94	4.76	4.92
484	NASDAQ	PRDO	Wed, Feb 2, 2000	4.33	4.86	4.33	4.67
483	NASDAQ	PRDO	Tue, Feb 1, 2000	4.34	4.56	4.23	4.33
482	NASDAQ	PRDO	Mon, Jan 31, 2000	4.22	4.27	4.16	4.27
481	NASDAQ	PRDO	Fri, Jan 28, 2000	4.22	4.22	4.16	4.16
480	NASDAQ	PRDO	Thu, Jan 27, 2000	4.19	4.20	4.14	4.16
479	NASDAQ	PRDO	Wed, Jan 26, 2000	4.22	4.23	4.22	4.22
478	NASDAQ	PRDO	Tue, Jan 25, 2000	4.25	4.38	4.22	4.30
477	NASDAQ	PRDO	Mon, Jan 24, 2000	4.19	4.22	4.19	4.22
476	NASDAQ	PRDO	Fri, Jan 21, 2000	4.20	4.27	4.20	4.27
475	NASDAQ	PRDO	Thu, Jan 20, 2000	4.23	4.23	4.18	4.23
474	NASDAQ	PRDO	Wed, Jan 19, 2000	4.23	4.23	4.11	4.23
473	NASDAQ	PRDO	Tue, Jan 18, 2000	4.16	4.23	4.11	4.23
472	NASDAQ	PRDO	Fri, Jan 14, 2000	4.24	4.25	4.14	4.25
471	NASDAQ	PRDO	Thu, Jan 13, 2000	4.22	4.34	4.16	4.27
470	NASDAQ	PRDO	Wed, Jan 12, 2000	4.27	4.27	4.23	4.23
469	NASDAQ	PRDO	Tue, Jan 11, 2000	4.27	4.31	4.27	4.27
468	NASDAQ	PRDO	Mon, Jan 10, 2000	4.27	4.34	4.27	4.33
467	NASDAQ	PRDO	Fri, Jan 7, 2000	4.25	4.38	4.25	4.38
466	NASDAQ	PRDO	Thu, Jan 6, 2000	4.39	4.39	4.28	4.33
465	NASDAQ	PRDO	Wed, Jan 5, 2000	4.42	4.44	4.34	4.34
464	NASDAQ	PRDO	Tue, Jan 4, 2000	4.44	4.44	4.31	4.38
463	NASDAQ	PRDO	Mon, Jan 3, 2000	4.75	4.75	4.44	4.45
462	NASDAQ	PRDO	Fri, Dec 31, 1999	4.55	4.80	4.55	4.80
461	NASDAQ	PRDO	Thu, Dec 30, 1999	4.80	4.80	4.79	4.79
460	NASDAQ	PRDO	Wed, Dec 29, 1999	4.75	4.77	4.75	4.75
459	NASDAQ	PRDO	Tue, Dec 28, 1999	4.63	4.80	4.63	4.75
458	NASDAQ	PRDO	Mon, Dec 27, 1999	4.77	4.80	4.73	4.73
457	NASDAQ	PRDO	Thu, Dec 23, 1999	4.69	4.81	4.59	4.75
456	NASDAQ	PRDO	Wed, Dec 22, 1999	4.53	4.66	4.41	4.66
455	NASDAQ	PRDO	Tue, Dec 21, 1999	4.38	4.50	4.38	4.47
454	NASDAQ	PRDO	Mon, Dec 20, 1999	4.36	4.36	4.31	4.31
453	NASDAQ	PRDO	Fri, Dec 17, 1999	4.44	4.45	4.17	4.32
452	NASDAQ	PRDO	Thu, Dec 16, 1999	4.19	4.31	4.12	4.27
451	NASDAQ	PRDO	Wed, Dec 15, 1999	4.08	4.19	4.06	4.17
450	NASDAQ	PRDO	Tue, Dec 14, 1999	4.11	4.11	4.06	4.11
449	NASDAQ	PRDO	Mon, Dec 13, 1999	4.08	4.13	4.08	4.13
448	NASDAQ	PRDO	Fri, Dec 10, 1999	4.13	4.23	3.98	3.98
447	NASDAQ	PRDO	Thu, Dec 9, 1999	4.00	4.20	4.00	4.16
446	NASDAQ	PRDO	Wed, Dec 8, 1999	4.00	4.02	3.97	4.02
445	NASDAQ	PRDO	Tue, Dec 7, 1999	4.03	4.03	3.97	4.01
444	NASDAQ	PRDO	Mon, Dec 6, 1999	4.02	4.02	4.00	4.00
443	NASDAQ	PRDO	Fri, Dec 3, 1999	4.03	4.03	3.97	4.00
442	NASDAQ	PRDO	Thu, Dec 2, 1999	4.02	4.08	4.00	4.02
441	NASDAQ	PRDO	Wed, Dec 1, 1999	4.02	4.07	3.97	4.02
440	NASDAQ	PRDO	Tue, Nov 30, 1999	4.13	4.13	4.02	4.13
439	NASDAQ	PRDO	Mon, Nov 29, 1999	4.07	4.16	4.03	4.03
438	NASDAQ	PRDO	Fri, Nov 26, 1999	4.06	4.11	4.00	4.11
437	NASDAQ	PRDO	Wed, Nov 24, 1999	3.94	4.05	3.94	4.00
436	NASDAQ	PRDO	Tue, Nov 23, 1999	4.09	4.14	3.81	3.97
435	NASDAQ	PRDO	Mon, Nov 22, 1999	4.25	4.25	4.09	4.14
434	NASDAQ	PRDO	Fri, Nov 19, 1999	4.34	4.34	4.21	4.28
433	NASDAQ	PRDO	Thu, Nov 18, 1999	4.30	4.36	4.25	4.28
432	NASDAQ	PRDO	Wed, Nov 17, 1999	4.38	4.42	4.30	4.38
431	NASDAQ	PRDO	Tue, Nov 16, 1999	4.42	4.47	4.38	4.47
430	NASDAQ	PRDO	Mon, Nov 15, 1999	4.38	4.42	4.38	4.38
429	NASDAQ	PRDO	Fri, Nov 12, 1999	4.31	4.45	4.31	4.44
428	NASDAQ	PRDO	Thu, Nov 11, 1999	4.32	4.44	4.31	4.44
427	NASDAQ	PRDO	Wed, Nov 10, 1999	4.16	4.41	4.16	4.38
426	NASDAQ	PRDO	Tue, Nov 9, 1999	3.61	4.33	3.61	4.16
425	NASDAQ	PRDO	Mon, Nov 8, 1999	3.60	3.66	3.60	3.66
424	NASDAQ	PRDO	Fri, Nov 5, 1999	3.58	3.63	3.58	3.59
423	NASDAQ	PRDO	Thu, Nov 4, 1999	3.67	3.67	3.58	3.59
422	NASDAQ	PRDO	Wed, Nov 3, 1999	3.57	3.69	3.56	3.67
421	NASDAQ	PRDO	Tue, Nov 2, 1999	3.16	3.75	3.15	3.66
420	NASDAQ	PRDO	Mon, Nov 1, 1999	2.81	3.13	2.80	3.06
419	NASDAQ	PRDO	Fri, Oct 29, 1999	2.80	2.84	2.74	2.75
418	NASDAQ	PRDO	Thu, Oct 28, 1999	2.88	2.88	2.81	2.81
417	NASDAQ	PRDO	Wed, Oct 27, 1999	2.84	2.91	2.84	2.86
416	NASDAQ	PRDO	Tue, Oct 26, 1999	2.88	2.97	2.84	2.88
415	NASDAQ	PRDO	Mon, Oct 25, 1999	2.88	2.91	2.81	2.82
414	NASDAQ	PRDO	Fri, Oct 22, 1999	2.95	2.95	2.91	2.91
413	NASDAQ	PRDO	Thu, Oct 21, 1999	2.91	3.03	2.88	3.03
412	NASDAQ	PRDO	Wed, Oct 20, 1999	3.03	3.03	2.91	2.92
411	NASDAQ	PRDO	Tue, Oct 19, 1999	3.03	3.03	2.88	2.92
410	NASDAQ	PRDO	Mon, Oct 18, 1999	2.98	3.02	2.94	2.94
409	NASDAQ	PRDO	Fri, Oct 15, 1999	3.27	3.27	2.94	2.97
408	NASDAQ	PRDO	Thu, Oct 14, 1999	3.28	3.28	3.25	3.25
407	NASDAQ	PRDO	Wed, Oct 13, 1999	3.30	3.34	3.25	3.27
406	NASDAQ	PRDO	Tue, Oct 12, 1999	3.36	3.36	3.28	3.33
405	NASDAQ	PRDO	Mon, Oct 11, 1999	3.39	3.39	3.33	3.38
404	NASDAQ	PRDO	Fri, Oct 8, 1999	3.38	3.38	3.34	3.34
403	NASDAQ	PRDO	Thu, Oct 7, 1999	3.41	3.41	3.33	3.36
402	NASDAQ	PRDO	Wed, Oct 6, 1999	3.45	3.50	3.31	3.41
401	NASDAQ	PRDO	Tue, Oct 5, 1999	3.50	3.50	3.44	3.44
400	NASDAQ	PRDO	Mon, Oct 4, 1999	3.50	3.50	3.41	3.44
399	NASDAQ	PRDO	Fri, Oct 1, 1999	3.44	3.56	3.38	3.41
398	NASDAQ	PRDO	Thu, Sep 30, 1999	3.06	3.63	2.97	3.63
397	NASDAQ	PRDO	Wed, Sep 29, 1999	3.00	3.09	3.00	3.09
396	NASDAQ	PRDO	Tue, Sep 28, 1999	2.95	3.00	2.95	2.95
395	NASDAQ	PRDO	Mon, Sep 27, 1999	2.95	2.99	2.94	2.95
394	NASDAQ	PRDO	Fri, Sep 24, 1999	3.11	3.11	2.88	2.93
393	NASDAQ	PRDO	Thu, Sep 23, 1999	3.22	3.22	3.13	3.13
392	NASDAQ	PRDO	Wed, Sep 22, 1999	3.31	3.31	3.22	3.22
391	NASDAQ	PRDO	Tue, Sep 21, 1999	3.51	3.51	3.34	3.37
390	NASDAQ	PRDO	Mon, Sep 20, 1999	3.50	3.50	3.50	3.50
389	NASDAQ	PRDO	Fri, Sep 17, 1999	3.57	3.63	3.50	3.51
388	NASDAQ	PRDO	Thu, Sep 16, 1999	3.63	3.63	3.50	3.50
387	NASDAQ	PRDO	Wed, Sep 15, 1999	3.50	3.84	3.50	3.56
386	NASDAQ	PRDO	Tue, Sep 14, 1999	3.36	3.48	3.34	3.47
385	NASDAQ	PRDO	Mon, Sep 13, 1999	3.36	3.36	3.35	3.36
384	NASDAQ	PRDO	Fri, Sep 10, 1999	3.25	3.36	3.25	3.36
383	NASDAQ	PRDO	Thu, Sep 9, 1999	3.30	3.36	3.26	3.31
382	NASDAQ	PRDO	Wed, Sep 8, 1999	3.32	3.32	3.25	3.29
381	NASDAQ	PRDO	Tue, Sep 7, 1999	3.29	3.35	3.27	3.35
380	NASDAQ	PRDO	Fri, Sep 3, 1999	3.25	3.33	3.25	3.33
379	NASDAQ	PRDO	Thu, Sep 2, 1999	3.24	3.24	3.23	3.23
378	NASDAQ	PRDO	Wed, Sep 1, 1999	3.27	3.27	3.25	3.25
377	NASDAQ	PRDO	Tue, Aug 31, 1999	3.27	3.27	3.22	3.25
376	NASDAQ	PRDO	Mon, Aug 30, 1999	3.30	3.34	3.27	3.27
375	NASDAQ	PRDO	Fri, Aug 27, 1999	3.37	3.38	3.25	3.27
374	NASDAQ	PRDO	Thu, Aug 26, 1999	3.50	3.50	3.38	3.38
373	NASDAQ	PRDO	Wed, Aug 25, 1999	3.52	3.52	3.50	3.50
372	NASDAQ	PRDO	Tue, Aug 24, 1999	3.55	3.55	3.47	3.53
371	NASDAQ	PRDO	Mon, Aug 23, 1999	3.66	3.66	3.47	3.48
370	NASDAQ	PRDO	Fri, Aug 20, 1999	3.70	3.75	3.59	3.63
369	NASDAQ	PRDO	Thu, Aug 19, 1999	3.77	3.78	3.70	3.72
368	NASDAQ	PRDO	Wed, Aug 18, 1999	3.86	3.86	3.76	3.77
367	NASDAQ	PRDO	Tue, Aug 17, 1999	3.70	4.13	3.64	3.88
366	NASDAQ	PRDO	Mon, Aug 16, 1999	3.77	3.78	3.67	3.78
365	NASDAQ	PRDO	Fri, Aug 13, 1999	3.70	3.77	3.70	3.75
364	NASDAQ	PRDO	Thu, Aug 12, 1999	3.75	3.75	3.67	3.70
363	NASDAQ	PRDO	Wed, Aug 11, 1999	3.73	3.77	3.73	3.75
362	NASDAQ	PRDO	Tue, Aug 10, 1999	3.73	3.74	3.72	3.74
361	NASDAQ	PRDO	Mon, Aug 9, 1999	3.53	3.73	3.53	3.72
360	NASDAQ	PRDO	Fri, Aug 6, 1999	3.56	3.59	3.53	3.53
359	NASDAQ	PRDO	Thu, Aug 5, 1999	3.55	3.57	3.55	3.56
358	NASDAQ	PRDO	Wed, Aug 4, 1999	3.48	3.66	3.48	3.59
357	NASDAQ	PRDO	Tue, Aug 3, 1999	3.80	3.80	3.41	3.49
356	NASDAQ	PRDO	Mon, Aug 2, 1999	3.84	4.02	3.76	3.76
355	NASDAQ	PRDO	Fri, Jul 30, 1999	3.85	3.85	3.77	3.78
354	NASDAQ	PRDO	Thu, Jul 29, 1999	3.81	3.88	3.80	3.84
353	NASDAQ	PRDO	Wed, Jul 28, 1999	3.80	3.89	3.80	3.89
352	NASDAQ	PRDO	Tue, Jul 27, 1999	3.78	3.86	3.78	3.86
351	NASDAQ	PRDO	Mon, Jul 26, 1999	3.78	3.94	3.78	3.86
350	NASDAQ	PRDO	Fri, Jul 23, 1999	3.88	3.88	3.81	3.86
349	NASDAQ	PRDO	Thu, Jul 22, 1999	3.88	3.95	3.86	3.88
348	NASDAQ	PRDO	Wed, Jul 21, 1999	3.88	3.91	3.81	3.90
347	NASDAQ	PRDO	Tue, Jul 20, 1999	3.92	3.94	3.92	3.92
346	NASDAQ	PRDO	Mon, Jul 19, 1999	3.97	3.97	3.91	3.91
345	NASDAQ	PRDO	Fri, Jul 16, 1999	4.00	4.00	3.94	3.94
344	NASDAQ	PRDO	Thu, Jul 15, 1999	3.95	4.00	3.95	4.00
343	NASDAQ	PRDO	Wed, Jul 14, 1999	3.94	4.01	3.94	3.98
342	NASDAQ	PRDO	Tue, Jul 13, 1999	4.03	4.03	3.89	3.95
341	NASDAQ	PRDO	Mon, Jul 12, 1999	4.06	4.06	4.05	4.05
340	NASDAQ	PRDO	Fri, Jul 9, 1999	4.16	4.16	3.88	4.06
339	NASDAQ	PRDO	Thu, Jul 8, 1999	4.20	4.20	4.17	4.17
338	NASDAQ	PRDO	Wed, Jul 7, 1999	4.20	4.20	4.20	4.20
337	NASDAQ	PRDO	Tue, Jul 6, 1999	4.20	4.20	4.19	4.20
336	NASDAQ	PRDO	Fri, Jul 2, 1999	4.23	4.23	4.20	4.20
335	NASDAQ	PRDO	Thu, Jul 1, 1999	4.22	4.25	4.19	4.23
334	NASDAQ	PRDO	Wed, Jun 30, 1999	4.28	4.31	4.16	4.23
333	NASDAQ	PRDO	Tue, Jun 29, 1999	3.86	4.31	3.84	4.28
332	NASDAQ	PRDO	Mon, Jun 28, 1999	3.84	3.88	3.84	3.88
331	NASDAQ	PRDO	Fri, Jun 25, 1999	3.85	3.88	3.84	3.86
330	NASDAQ	PRDO	Thu, Jun 24, 1999	3.81	3.84	3.73	3.84
329	NASDAQ	PRDO	Wed, Jun 23, 1999	3.81	3.82	3.77	3.80
328	NASDAQ	PRDO	Tue, Jun 22, 1999	4.00	4.03	3.80	3.80
327	NASDAQ	PRDO	Mon, Jun 21, 1999	4.00	4.00	3.97	3.98
326	NASDAQ	PRDO	Fri, Jun 18, 1999	3.97	3.99	3.95	3.95
325	NASDAQ	PRDO	Thu, Jun 17, 1999	4.11	4.11	3.98	3.98
324	NASDAQ	PRDO	Wed, Jun 16, 1999	4.16	4.16	4.09	4.09
323	NASDAQ	PRDO	Tue, Jun 15, 1999	4.11	4.13	4.09	4.13
322	NASDAQ	PRDO	Mon, Jun 14, 1999	4.13	4.13	4.13	4.13
321	NASDAQ	PRDO	Fri, Jun 11, 1999	4.22	4.22	4.16	4.19
320	NASDAQ	PRDO	Thu, Jun 10, 1999	4.22	4.22	4.19	4.22
319	NASDAQ	PRDO	Wed, Jun 9, 1999	4.27	4.27	4.19	4.19
318	NASDAQ	PRDO	Tue, Jun 8, 1999	4.16	4.25	4.16	4.20
317	NASDAQ	PRDO	Mon, Jun 7, 1999	4.17	4.17	4.16	4.17
316	NASDAQ	PRDO	Fri, Jun 4, 1999	4.13	4.14	4.13	4.13
315	NASDAQ	PRDO	Thu, Jun 3, 1999	4.09	4.14	4.09	4.13
314	NASDAQ	PRDO	Wed, Jun 2, 1999	4.25	4.25	4.09	4.11
313	NASDAQ	PRDO	Tue, Jun 1, 1999	4.26	4.26	4.22	4.22
312	NASDAQ	PRDO	Fri, May 28, 1999	4.39	4.39	4.31	4.39
311	NASDAQ	PRDO	Thu, May 27, 1999	4.38	4.39	4.27	4.27
310	NASDAQ	PRDO	Wed, May 26, 1999	4.41	4.50	4.31	4.31
309	NASDAQ	PRDO	Tue, May 25, 1999	4.58	4.59	4.52	4.55
308	NASDAQ	PRDO	Mon, May 24, 1999	4.61	4.61	4.45	4.45
307	NASDAQ	PRDO	Fri, May 21, 1999	4.64	4.64	4.59	4.64
306	NASDAQ	PRDO	Thu, May 20, 1999	4.70	4.75	4.66	4.66
305	NASDAQ	PRDO	Wed, May 19, 1999	4.78	4.78	4.66	4.66
304	NASDAQ	PRDO	Tue, May 18, 1999	4.78	4.78	4.68	4.68
303	NASDAQ	PRDO	Mon, May 17, 1999	4.88	4.88	4.64	4.78
302	NASDAQ	PRDO	Fri, May 14, 1999	4.81	4.83	4.74	4.74
301	NASDAQ	PRDO	Wed, May 12, 1999	4.80	4.81	4.63	4.64
300	NASDAQ	PRDO	Tue, May 11, 1999	4.58	4.77	4.58	4.77
299	NASDAQ	PRDO	Mon, May 10, 1999	4.66	4.67	4.56	4.67
298	NASDAQ	PRDO	Fri, May 7, 1999	4.39	4.81	4.38	4.64
297	NASDAQ	PRDO	Thu, May 6, 1999	4.23	4.34	4.23	4.34
296	NASDAQ	PRDO	Wed, May 5, 1999	4.11	4.22	4.11	4.20
295	NASDAQ	PRDO	Tue, May 4, 1999	4.22	4.22	4.11	4.11
294	NASDAQ	PRDO	Mon, May 3, 1999	4.27	4.27	4.13	4.27
293	NASDAQ	PRDO	Fri, Apr 30, 1999	4.34	4.35	4.19	4.19
292	NASDAQ	PRDO	Thu, Apr 29, 1999	4.39	4.39	4.31	4.33
291	NASDAQ	PRDO	Wed, Apr 28, 1999	4.38	4.38	4.36	4.38
290	NASDAQ	PRDO	Tue, Apr 27, 1999	4.34	4.41	4.34	4.36
289	NASDAQ	PRDO	Mon, Apr 26, 1999	4.31	4.34	4.27	4.34
288	NASDAQ	PRDO	Fri, Apr 23, 1999	4.09	4.30	4.09	4.25
287	NASDAQ	PRDO	Thu, Apr 22, 1999	4.03	4.31	4.03	4.16
286	NASDAQ	PRDO	Wed, Apr 21, 1999	3.91	4.13	3.91	4.06
285	NASDAQ	PRDO	Tue, Apr 20, 1999	4.34	4.34	3.83	3.83
284	NASDAQ	PRDO	Mon, Apr 19, 1999	4.58	4.66	4.34	4.34
283	NASDAQ	PRDO	Fri, Apr 16, 1999	4.61	4.67	4.58	4.63
282	NASDAQ	PRDO	Thu, Apr 15, 1999	4.55	4.67	4.55	4.61
281	NASDAQ	PRDO	Wed, Apr 14, 1999	4.66	4.66	4.55	4.55
280	NASDAQ	PRDO	Tue, Apr 13, 1999	4.56	4.61	4.55	4.55
279	NASDAQ	PRDO	Mon, Apr 12, 1999	4.62	4.62	4.55	4.55
278	NASDAQ	PRDO	Fri, Apr 9, 1999	4.56	4.58	4.56	4.56
277	NASDAQ	PRDO	Thu, Apr 8, 1999	4.56	4.63	4.56	4.56
276	NASDAQ	PRDO	Wed, Apr 7, 1999	4.56	4.61	4.56	4.56
275	NASDAQ	PRDO	Tue, Apr 6, 1999	4.44	4.63	4.44	4.56
274	NASDAQ	PRDO	Mon, Apr 5, 1999	4.44	4.50	4.38	4.48
273	NASDAQ	PRDO	Thu, Apr 1, 1999	4.33	4.45	4.33	4.44
272	NASDAQ	PRDO	Wed, Mar 31, 1999	4.38	4.38	4.33	4.33
271	NASDAQ	PRDO	Tue, Mar 30, 1999	4.38	4.50	4.30	4.50
270	NASDAQ	PRDO	Mon, Mar 29, 1999	4.38	4.50	4.38	4.48
269	NASDAQ	PRDO	Fri, Mar 26, 1999	4.52	4.63	4.38	4.38
268	NASDAQ	PRDO	Thu, Mar 25, 1999	4.27	4.63	4.27	4.56
267	NASDAQ	PRDO	Wed, Mar 24, 1999	4.13	4.28	4.13	4.25
266	NASDAQ	PRDO	Tue, Mar 23, 1999	4.06	4.16	4.06	4.13
265	NASDAQ	PRDO	Mon, Mar 22, 1999	4.19	4.19	4.11	4.13
264	NASDAQ	PRDO	Fri, Mar 19, 1999	4.34	4.38	4.16	4.23
263	NASDAQ	PRDO	Thu, Mar 18, 1999	3.75	4.40	3.70	4.36
262	NASDAQ	PRDO	Wed, Mar 17, 1999	3.50	3.69	3.50	3.66
261	NASDAQ	PRDO	Tue, Mar 16, 1999	3.52	3.52	3.48	3.49
260	NASDAQ	PRDO	Mon, Mar 15, 1999	3.47	3.53	3.45	3.53
259	NASDAQ	PRDO	Fri, Mar 12, 1999	3.48	3.48	3.47	3.47
258	NASDAQ	PRDO	Thu, Mar 11, 1999	3.45	3.45	3.45	3.45
257	NASDAQ	PRDO	Wed, Mar 10, 1999	3.50	3.50	3.46	3.48
256	NASDAQ	PRDO	Tue, Mar 9, 1999	3.50	3.50	3.50	3.50
255	NASDAQ	PRDO	Mon, Mar 8, 1999	3.50	3.50	3.44	3.45
254	NASDAQ	PRDO	Fri, Mar 5, 1999	3.53	3.53	3.53	3.53
253	NASDAQ	PRDO	Wed, Mar 3, 1999	3.44	3.53	3.44	3.44
252	NASDAQ	PRDO	Tue, Mar 2, 1999	3.52	3.53	3.47	3.50
251	NASDAQ	PRDO	Mon, Mar 1, 1999	3.52	3.52	3.47	3.52
250	NASDAQ	PRDO	Fri, Feb 26, 1999	3.52	3.52	3.45	3.52
249	NASDAQ	PRDO	Thu, Feb 25, 1999	3.44	3.52	3.44	3.52
248	NASDAQ	PRDO	Wed, Feb 24, 1999	3.52	3.53	3.52	3.53
247	NASDAQ	PRDO	Tue, Feb 23, 1999	3.55	3.55	3.50	3.50
246	NASDAQ	PRDO	Fri, Feb 19, 1999	3.50	3.52	3.50	3.50
245	NASDAQ	PRDO	Thu, Feb 18, 1999	3.55	3.55	3.55	3.55
244	NASDAQ	PRDO	Wed, Feb 17, 1999	3.55	3.55	3.50	3.55
243	NASDAQ	PRDO	Tue, Feb 16, 1999	3.56	3.56	3.56	3.56
242	NASDAQ	PRDO	Fri, Feb 12, 1999	3.56	3.59	3.53	3.55
241	NASDAQ	PRDO	Thu, Feb 11, 1999	3.63	3.63	3.50	3.63
240	NASDAQ	PRDO	Wed, Feb 10, 1999	3.50	3.63	3.50	3.63
239	NASDAQ	PRDO	Tue, Feb 9, 1999	3.63	3.63	3.55	3.55
238	NASDAQ	PRDO	Mon, Feb 8, 1999	3.75	3.75	3.69	3.69
237	NASDAQ	PRDO	Fri, Feb 5, 1999	3.63	3.75	3.63	3.75
236	NASDAQ	PRDO	Thu, Feb 4, 1999	3.63	3.67	3.63	3.64
235	NASDAQ	PRDO	Wed, Feb 3, 1999	3.63	3.81	3.63	3.63
234	NASDAQ	PRDO	Tue, Feb 2, 1999	3.69	3.70	3.69	3.70
233	NASDAQ	PRDO	Mon, Feb 1, 1999	3.63	3.63	3.63	3.63
232	NASDAQ	PRDO	Fri, Jan 29, 1999	3.63	3.81	3.63	3.66
231	NASDAQ	PRDO	Wed, Jan 27, 1999	3.80	3.80	3.80	3.80
230	NASDAQ	PRDO	Mon, Jan 25, 1999	3.81	3.81	3.81	3.81
229	NASDAQ	PRDO	Fri, Jan 22, 1999	3.88	3.94	3.63	3.75
228	NASDAQ	PRDO	Thu, Jan 21, 1999	3.81	3.81	3.78	3.78
227	NASDAQ	PRDO	Wed, Jan 20, 1999	3.88	3.88	3.88	3.88
226	NASDAQ	PRDO	Tue, Jan 19, 1999	3.88	3.94	3.88	3.94
225	NASDAQ	PRDO	Wed, Jan 13, 1999	3.81	3.81	3.81	3.81
224	NASDAQ	PRDO	Tue, Jan 12, 1999	3.67	3.67	3.67	3.67
223	NASDAQ	PRDO	Mon, Jan 11, 1999	3.81	3.81	3.81	3.81
222	NASDAQ	PRDO	Thu, Jan 7, 1999	3.83	3.83	3.83	3.83
221	NASDAQ	PRDO	Wed, Jan 6, 1999	3.67	3.77	3.61	3.69
220	NASDAQ	PRDO	Tue, Jan 5, 1999	3.61	3.61	3.61	3.61
219	NASDAQ	PRDO	Mon, Jan 4, 1999	3.80	3.80	3.64	3.64
218	NASDAQ	PRDO	Thu, Dec 31, 1998	3.59	3.75	3.59	3.75
217	NASDAQ	PRDO	Wed, Dec 30, 1998	3.56	3.66	3.56	3.66
216	NASDAQ	PRDO	Tue, Dec 29, 1998	3.50	3.59	3.50	3.58
215	NASDAQ	PRDO	Mon, Dec 28, 1998	3.33	3.33	3.33	3.33
214	NASDAQ	PRDO	Thu, Dec 24, 1998	3.44	3.44	3.44	3.44
213	NASDAQ	PRDO	Wed, Dec 23, 1998	3.44	3.44	3.44	3.44
212	NASDAQ	PRDO	Mon, Dec 21, 1998	3.44	3.44	3.44	3.44
211	NASDAQ	PRDO	Fri, Dec 18, 1998	3.34	3.44	3.33	3.44
210	NASDAQ	PRDO	Thu, Dec 17, 1998	3.38	3.38	3.31	3.34
209	NASDAQ	PRDO	Wed, Dec 16, 1998	3.27	3.41	3.27	3.41
208	NASDAQ	PRDO	Tue, Dec 15, 1998	3.38	3.38	3.23	3.25
207	NASDAQ	PRDO	Fri, Dec 11, 1998	3.52	3.52	3.52	3.52
206	NASDAQ	PRDO	Thu, Dec 10, 1998	3.47	3.47	3.47	3.47
205	NASDAQ	PRDO	Wed, Dec 9, 1998	3.52	3.52	3.47	3.52
204	NASDAQ	PRDO	Tue, Dec 8, 1998	3.53	3.53	3.47	3.48
203	NASDAQ	PRDO	Mon, Dec 7, 1998	3.50	3.50	3.50	3.50
202	NASDAQ	PRDO	Fri, Dec 4, 1998	3.50	3.52	3.47	3.47
201	NASDAQ	PRDO	Thu, Dec 3, 1998	3.45	3.52	3.45	3.47
200	NASDAQ	PRDO	Wed, Dec 2, 1998	3.41	3.41	3.41	3.41
199	NASDAQ	PRDO	Tue, Dec 1, 1998	3.45	3.45	3.38	3.45
198	NASDAQ	PRDO	Mon, Nov 30, 1998	3.45	3.45	3.41	3.41
197	NASDAQ	PRDO	Fri, Nov 27, 1998	3.45	3.45	3.41	3.41
196	NASDAQ	PRDO	Wed, Nov 25, 1998	3.41	3.41	3.41	3.41
195	NASDAQ	PRDO	Tue, Nov 24, 1998	3.39	3.44	3.39	3.44
194	NASDAQ	PRDO	Mon, Nov 23, 1998	3.42	3.42	3.42	3.42
193	NASDAQ	PRDO	Fri, Nov 20, 1998	3.27	3.43	3.27	3.43
192	NASDAQ	PRDO	Thu, Nov 19, 1998	3.29	3.38	3.29	3.38
191	NASDAQ	PRDO	Wed, Nov 18, 1998	3.44	3.44	3.38	3.38
190	NASDAQ	PRDO	Mon, Nov 16, 1998	3.44	3.44	3.31	3.41
189	NASDAQ	PRDO	Fri, Nov 13, 1998	3.44	3.44	3.27	3.27
188	NASDAQ	PRDO	Thu, Nov 12, 1998	3.31	3.31	3.31	3.31
187	NASDAQ	PRDO	Wed, Nov 11, 1998	3.44	3.44	3.33	3.44
186	NASDAQ	PRDO	Tue, Nov 10, 1998	3.27	3.42	3.27	3.38
185	NASDAQ	PRDO	Mon, Nov 9, 1998	3.27	3.27	3.22	3.27
184	NASDAQ	PRDO	Fri, Nov 6, 1998	3.25	3.27	3.19	3.27
183	NASDAQ	PRDO	Thu, Nov 5, 1998	3.27	3.27	3.23	3.23
182	NASDAQ	PRDO	Wed, Nov 4, 1998	3.19	3.25	3.16	3.25
181	NASDAQ	PRDO	Tue, Nov 3, 1998	3.09	3.18	3.09	3.18
180	NASDAQ	PRDO	Mon, Nov 2, 1998	3.17	3.19	3.09	3.09
179	NASDAQ	PRDO	Fri, Oct 30, 1998	2.91	3.09	2.91	3.06
178	NASDAQ	PRDO	Thu, Oct 29, 1998	2.88	2.89	2.88	2.89
177	NASDAQ	PRDO	Wed, Oct 28, 1998	2.83	2.91	2.75	2.91
176	NASDAQ	PRDO	Tue, Oct 27, 1998	2.81	2.91	2.72	2.88
175	NASDAQ	PRDO	Mon, Oct 26, 1998	2.55	2.69	2.55	2.69
174	NASDAQ	PRDO	Fri, Oct 23, 1998	2.57	2.57	2.50	2.51
173	NASDAQ	PRDO	Thu, Oct 22, 1998	2.78	2.78	2.52	2.56
172	NASDAQ	PRDO	Wed, Oct 21, 1998	2.78	2.78	2.78	2.78
171	NASDAQ	PRDO	Tue, Oct 20, 1998	2.88	2.91	2.81	2.81
170	NASDAQ	PRDO	Mon, Oct 19, 1998	2.77	2.97	2.63	2.89
169	NASDAQ	PRDO	Fri, Oct 16, 1998	2.50	2.72	2.45	2.72
168	NASDAQ	PRDO	Thu, Oct 15, 1998	2.00	2.66	1.98	2.66
167	NASDAQ	PRDO	Wed, Oct 14, 1998	2.02	2.02	2.02	2.02
166	NASDAQ	PRDO	Tue, Oct 13, 1998	2.13	2.13	2.02	2.02
165	NASDAQ	PRDO	Mon, Oct 12, 1998	1.86	2.14	1.84	2.09
164	NASDAQ	PRDO	Fri, Oct 9, 1998	1.80	1.84	1.77	1.84
163	NASDAQ	PRDO	Thu, Oct 8, 1998	2.03	2.03	1.77	1.77
162	NASDAQ	PRDO	Wed, Oct 7, 1998	2.41	2.41	2.14	2.16
161	NASDAQ	PRDO	Tue, Oct 6, 1998	2.52	2.52	2.44	2.44
160	NASDAQ	PRDO	Mon, Oct 5, 1998	2.54	2.54	2.52	2.52
159	NASDAQ	PRDO	Fri, Oct 2, 1998	2.59	2.59	2.53	2.53
158	NASDAQ	PRDO	Thu, Oct 1, 1998	2.75	2.75	2.63	2.63
157	NASDAQ	PRDO	Wed, Sep 30, 1998	2.73	2.73	2.73	2.73
156	NASDAQ	PRDO	Tue, Sep 29, 1998	2.73	2.73	2.72	2.73
155	NASDAQ	PRDO	Mon, Sep 28, 1998	2.86	2.86	2.72	2.72
154	NASDAQ	PRDO	Fri, Sep 25, 1998	2.77	2.77	2.75	2.75
153	NASDAQ	PRDO	Thu, Sep 24, 1998	2.85	2.86	2.78	2.86
152	NASDAQ	PRDO	Wed, Sep 23, 1998	2.84	2.86	2.72	2.86
151	NASDAQ	PRDO	Mon, Sep 21, 1998	2.84	2.84	2.84	2.84
150	NASDAQ	PRDO	Thu, Sep 17, 1998	2.88	2.88	2.84	2.86
149	NASDAQ	PRDO	Wed, Sep 16, 1998	2.84	2.88	2.84	2.88
148	NASDAQ	PRDO	Tue, Sep 15, 1998	2.86	2.86	2.84	2.84
147	NASDAQ	PRDO	Mon, Sep 14, 1998	2.84	2.84	2.83	2.83
146	NASDAQ	PRDO	Fri, Sep 11, 1998	2.79	2.79	2.79	2.79
145	NASDAQ	PRDO	Thu, Sep 10, 1998	2.75	2.84	2.75	2.84
144	NASDAQ	PRDO	Wed, Sep 9, 1998	2.75	2.81	2.75	2.80
143	NASDAQ	PRDO	Tue, Sep 8, 1998	2.73	2.84	2.73	2.73
142	NASDAQ	PRDO	Fri, Sep 4, 1998	2.69	2.73	2.63	2.73
141	NASDAQ	PRDO	Thu, Sep 3, 1998	2.69	2.69	2.69	2.69
140	NASDAQ	PRDO	Wed, Sep 2, 1998	2.66	2.81	2.66	2.75
139	NASDAQ	PRDO	Tue, Sep 1, 1998	2.63	2.66	2.17	2.56
138	NASDAQ	PRDO	Mon, Aug 31, 1998	2.91	2.91	2.69	2.75
137	NASDAQ	PRDO	Fri, Aug 28, 1998	2.78	2.88	2.78	2.79
136	NASDAQ	PRDO	Thu, Aug 27, 1998	2.88	2.88	2.78	2.79
135	NASDAQ	PRDO	Wed, Aug 26, 1998	2.88	2.94	2.88	2.88
134	NASDAQ	PRDO	Mon, Aug 24, 1998	2.88	2.88	2.88	2.88
133	NASDAQ	PRDO	Fri, Aug 21, 1998	2.88	2.94	2.88	2.94
132	NASDAQ	PRDO	Thu, Aug 20, 1998	2.94	2.96	2.94	2.96
131	NASDAQ	PRDO	Wed, Aug 19, 1998	2.94	2.95	2.94	2.94
130	NASDAQ	PRDO	Tue, Aug 18, 1998	2.94	3.00	2.94	3.00
129	NASDAQ	PRDO	Mon, Aug 17, 1998	2.94	2.94	2.94	2.94
128	NASDAQ	PRDO	Fri, Aug 14, 1998	2.94	2.95	2.94	2.94
127	NASDAQ	PRDO	Thu, Aug 13, 1998	2.94	2.97	2.94	2.94
126	NASDAQ	PRDO	Wed, Aug 12, 1998	3.00	3.00	2.94	2.94
125	NASDAQ	PRDO	Tue, Aug 11, 1998	2.94	2.97	2.94	2.94
124	NASDAQ	PRDO	Mon, Aug 10, 1998	3.03	3.03	3.03	3.03
123	NASDAQ	PRDO	Fri, Aug 7, 1998	2.94	3.03	2.94	3.03
122	NASDAQ	PRDO	Thu, Aug 6, 1998	2.94	3.04	2.94	2.95
121	NASDAQ	PRDO	Wed, Aug 5, 1998	3.09	3.09	2.94	2.94
120	NASDAQ	PRDO	Tue, Aug 4, 1998	3.11	3.11	2.94	2.94
119	NASDAQ	PRDO	Mon, Aug 3, 1998	3.23	3.25	3.17	3.17
118	NASDAQ	PRDO	Fri, Jul 31, 1998	3.11	3.25	3.11	3.11
117	NASDAQ	PRDO	Thu, Jul 30, 1998	3.17	3.17	3.13	3.13
116	NASDAQ	PRDO	Wed, Jul 29, 1998	3.25	3.28	3.25	3.28
115	NASDAQ	PRDO	Tue, Jul 28, 1998	3.22	3.22	3.11	3.11
114	NASDAQ	PRDO	Fri, Jul 24, 1998	3.08	3.13	3.08	3.13
113	NASDAQ	PRDO	Thu, Jul 23, 1998	3.22	3.22	3.08	3.08
112	NASDAQ	PRDO	Wed, Jul 22, 1998	3.23	3.23	3.23	3.23
111	NASDAQ	PRDO	Tue, Jul 21, 1998	3.31	3.31	3.25	3.25
110	NASDAQ	PRDO	Mon, Jul 20, 1998	3.34	3.34	3.31	3.31
109	NASDAQ	PRDO	Fri, Jul 17, 1998	3.33	3.33	3.31	3.31
108	NASDAQ	PRDO	Thu, Jul 16, 1998	3.22	3.28	3.22	3.27
107	NASDAQ	PRDO	Wed, Jul 15, 1998	3.16	3.19	3.14	3.14
106	NASDAQ	PRDO	Mon, Jul 13, 1998	3.16	3.16	3.16	3.16
105	NASDAQ	PRDO	Fri, Jul 10, 1998	3.13	3.13	3.13	3.13
104	NASDAQ	PRDO	Mon, Jul 6, 1998	3.06	3.13	3.06	3.06
103	NASDAQ	PRDO	Thu, Jul 2, 1998	3.06	3.09	3.06	3.09
102	NASDAQ	PRDO	Wed, Jul 1, 1998	3.06	3.09	3.06	3.09
101	NASDAQ	PRDO	Tue, Jun 30, 1998	3.06	3.06	3.06	3.06
100	NASDAQ	PRDO	Mon, Jun 29, 1998	3.13	3.13	3.06	3.06
99	NASDAQ	PRDO	Fri, Jun 26, 1998	3.09	3.16	3.06	3.16
98	NASDAQ	PRDO	Thu, Jun 25, 1998	3.11	3.13	3.06	3.06
97	NASDAQ	PRDO	Wed, Jun 24, 1998	3.03	3.14	3.03	3.14
96	NASDAQ	PRDO	Tue, Jun 23, 1998	3.03	3.08	3.00	3.00
95	NASDAQ	PRDO	Mon, Jun 22, 1998	3.00	3.00	3.00	3.00
94	NASDAQ	PRDO	Fri, Jun 19, 1998	2.98	3.02	2.98	3.00
93	NASDAQ	PRDO	Wed, Jun 17, 1998	2.91	3.02	2.90	3.02
92	NASDAQ	PRDO	Tue, Jun 16, 1998	2.88	2.89	2.86	2.88
91	NASDAQ	PRDO	Mon, Jun 15, 1998	2.81	2.88	2.77	2.88
90	NASDAQ	PRDO	Fri, Jun 12, 1998	2.83	2.84	2.80	2.84
89	NASDAQ	PRDO	Thu, Jun 11, 1998	2.88	2.88	2.83	2.84
88	NASDAQ	PRDO	Wed, Jun 10, 1998	2.84	2.94	2.80	2.84
87	NASDAQ	PRDO	Tue, Jun 9, 1998	2.88	2.94	2.86	2.94
86	NASDAQ	PRDO	Mon, Jun 8, 1998	2.94	2.94	2.89	2.91
85	NASDAQ	PRDO	Fri, Jun 5, 1998	3.06	3.06	2.88	3.00
84	NASDAQ	PRDO	Thu, Jun 4, 1998	3.14	3.14	3.06	3.06
83	NASDAQ	PRDO	Wed, Jun 3, 1998	3.06	3.06	3.06	3.06
82	NASDAQ	PRDO	Tue, Jun 2, 1998	3.06	3.06	3.06	3.06
81	NASDAQ	PRDO	Mon, Jun 1, 1998	3.13	3.13	3.09	3.09
80	NASDAQ	PRDO	Thu, May 28, 1998	3.14	3.14	3.13	3.13
79	NASDAQ	PRDO	Wed, May 27, 1998	3.20	3.20	3.14	3.14
78	NASDAQ	PRDO	Tue, May 26, 1998	3.20	3.20	3.20	3.20
77	NASDAQ	PRDO	Fri, May 22, 1998	3.20	3.20	3.20	3.20
76	NASDAQ	PRDO	Thu, May 21, 1998	3.20	3.21	3.20	3.20
75	NASDAQ	PRDO	Tue, May 19, 1998	3.20	3.23	3.20	3.21
74	NASDAQ	PRDO	Mon, May 18, 1998	3.23	3.23	3.20	3.20
73	NASDAQ	PRDO	Fri, May 15, 1998	3.31	3.31	3.20	3.20
72	NASDAQ	PRDO	Thu, May 14, 1998	3.31	3.38	3.31	3.31
71	NASDAQ	PRDO	Wed, May 13, 1998	3.38	3.38	3.33	3.33
70	NASDAQ	PRDO	Tue, May 12, 1998	3.38	3.44	3.31	3.38
69	NASDAQ	PRDO	Mon, May 11, 1998	3.25	3.31	3.22	3.25
68	NASDAQ	PRDO	Fri, May 8, 1998	3.06	3.16	3.06	3.16
67	NASDAQ	PRDO	Thu, May 7, 1998	3.03	3.06	3.00	3.06
66	NASDAQ	PRDO	Wed, May 6, 1998	2.98	3.06	2.94	3.03
65	NASDAQ	PRDO	Tue, May 5, 1998	2.94	3.00	2.94	2.98
64	NASDAQ	PRDO	Mon, May 4, 1998	2.91	3.00	2.88	3.00
63	NASDAQ	PRDO	Fri, May 1, 1998	2.86	2.86	2.83	2.83
62	NASDAQ	PRDO	Thu, Apr 30, 1998	2.88	2.88	2.81	2.84
61	NASDAQ	PRDO	Wed, Apr 29, 1998	2.81	2.81	2.81	2.81
60	NASDAQ	PRDO	Mon, Apr 27, 1998	2.83	2.84	2.81	2.83
59	NASDAQ	PRDO	Fri, Apr 24, 1998	2.88	2.88	2.83	2.83
58	NASDAQ	PRDO	Thu, Apr 23, 1998	2.86	2.88	2.83	2.86
57	NASDAQ	PRDO	Tue, Apr 21, 1998	2.86	2.88	2.86	2.86
56	NASDAQ	PRDO	Mon, Apr 20, 1998	2.89	2.91	2.81	2.91
55	NASDAQ	PRDO	Fri, Apr 17, 1998	2.89	2.89	2.89	2.89
54	NASDAQ	PRDO	Thu, Apr 16, 1998	2.88	2.88	2.88	2.88
53	NASDAQ	PRDO	Wed, Apr 15, 1998	2.84	2.88	2.84	2.88
52	NASDAQ	PRDO	Tue, Apr 14, 1998	2.86	2.86	2.81	2.83
51	NASDAQ	PRDO	Mon, Apr 13, 1998	2.81	2.81	2.81	2.81
50	NASDAQ	PRDO	Thu, Apr 9, 1998	2.94	2.94	2.81	2.83
49	NASDAQ	PRDO	Wed, Apr 8, 1998	2.75	2.94	2.75	2.94
48	NASDAQ	PRDO	Tue, Apr 7, 1998	2.70	2.75	2.70	2.75
47	NASDAQ	PRDO	Mon, Apr 6, 1998	2.77	2.77	2.70	2.74
46	NASDAQ	PRDO	Fri, Apr 3, 1998	2.78	2.78	2.72	2.73
45	NASDAQ	PRDO	Thu, Apr 2, 1998	2.75	2.78	2.69	2.78
44	NASDAQ	PRDO	Wed, Apr 1, 1998	2.75	2.75	2.72	2.72
43	NASDAQ	PRDO	Tue, Mar 31, 1998	2.77	2.77	2.70	2.75
42	NASDAQ	PRDO	Mon, Mar 30, 1998	2.58	2.77	2.58	2.75
41	NASDAQ	PRDO	Fri, Mar 27, 1998	2.59	2.59	2.58	2.58
40	NASDAQ	PRDO	Thu, Mar 26, 1998	2.72	2.73	2.58	2.59
39	NASDAQ	PRDO	Wed, Mar 25, 1998	2.59	2.69	2.57	2.69
38	NASDAQ	PRDO	Tue, Mar 24, 1998	2.67	2.67	2.59	2.59
37	NASDAQ	PRDO	Mon, Mar 23, 1998	2.63	2.67	2.63	2.67
36	NASDAQ	PRDO	Fri, Mar 20, 1998	2.67	2.67	2.63	2.66
35	NASDAQ	PRDO	Thu, Mar 19, 1998	2.63	2.67	2.63	2.67
34	NASDAQ	PRDO	Wed, Mar 18, 1998	2.63	2.66	2.63	2.66
33	NASDAQ	PRDO	Tue, Mar 17, 1998	2.63	2.66	2.63	2.63
32	NASDAQ	PRDO	Mon, Mar 16, 1998	2.59	2.64	2.59	2.63
31	NASDAQ	PRDO	Fri, Mar 13, 1998	2.59	2.66	2.59	2.64
30	NASDAQ	PRDO	Thu, Mar 12, 1998	2.61	2.63	2.59	2.63
29	NASDAQ	PRDO	Wed, Mar 11, 1998	2.57	2.63	2.56	2.59
28	NASDAQ	PRDO	Tue, Mar 10, 1998	2.50	2.58	2.50	2.56
27	NASDAQ	PRDO	Mon, Mar 9, 1998	2.50	2.55	2.50	2.53
26	NASDAQ	PRDO	Fri, Mar 6, 1998	2.47	2.52	2.45	2.52
25	NASDAQ	PRDO	Thu, Mar 5, 1998	2.55	2.59	2.44	2.47
24	NASDAQ	PRDO	Wed, Mar 4, 1998	2.61	2.61	2.59	2.59
23	NASDAQ	PRDO	Tue, Mar 3, 1998	2.67	2.67	2.61	2.63
22	NASDAQ	PRDO	Mon, Mar 2, 1998	2.66	2.69	2.64	2.67
21	NASDAQ	PRDO	Fri, Feb 27, 1998	2.66	2.72	2.64	2.70
20	NASDAQ	PRDO	Thu, Feb 26, 1998	2.67	2.70	2.67	2.67
19	NASDAQ	PRDO	Wed, Feb 25, 1998	2.59	2.73	2.59	2.67
18	NASDAQ	PRDO	Tue, Feb 24, 1998	2.66	2.66	2.59	2.66
17	NASDAQ	PRDO	Mon, Feb 23, 1998	2.66	2.66	2.61	2.63
16	NASDAQ	PRDO	Fri, Feb 20, 1998	2.61	2.67	2.61	2.61
15	NASDAQ	PRDO	Thu, Feb 19, 1998	2.55	2.66	2.55	2.61
14	NASDAQ	PRDO	Wed, Feb 18, 1998	2.53	2.58	2.53	2.55
13	NASDAQ	PRDO	Tue, Feb 17, 1998	2.44	2.56	2.44	2.53
12	NASDAQ	PRDO	Fri, Feb 13, 1998	2.50	2.50	2.44	2.45
11	NASDAQ	PRDO	Thu, Feb 12, 1998	2.48	2.50	2.42	2.44
10	NASDAQ	PRDO	Wed, Feb 11, 1998	2.31	2.50	2.31	2.48
9	NASDAQ	PRDO	Tue, Feb 10, 1998	2.31	2.36	2.31	2.32
8	NASDAQ	PRDO	Mon, Feb 9, 1998	2.27	2.36	2.27	2.31
7	NASDAQ	PRDO	Fri, Feb 6, 1998	2.34	2.34	2.20	2.28
6	NASDAQ	PRDO	Thu, Feb 5, 1998	2.38	2.39	2.34	2.34
5	NASDAQ	PRDO	Wed, Feb 4, 1998	2.38	2.41	2.38	2.38
4	NASDAQ	PRDO	Tue, Feb 3, 1998	2.45	2.45	2.38	2.38
3	NASDAQ	PRDO	Mon, Feb 2, 1998	2.50	2.54	2.44	2.45
2	NASDAQ	PRDO	Fri, Jan 30, 1998	2.41	2.55	2.41	2.50
1	NASDAQ	PRDO	Thu, Jan 29, 1998	2.28	2.47	2.28	2.41
#	Exchange	Symbol	Date	Open	High	Low	Close

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