Nuveen AMT-Free Municipal Credit Income Fund NYSE:NVG Historical Prices

Below are the 5403 trading days of historical prices for NVG.

#	Exchange	Symbol	Date	Open	High	Low	Close
5403	NYSE	NVG	Mon, Mar 4, 2024	11.88	11.93	11.86	11.92
5402	NYSE	NVG	Fri, Mar 1, 2024	11.84	11.88	11.79	11.87
5401	NYSE	NVG	Thu, Feb 29, 2024	11.83	11.88	11.80	11.82
5400	NYSE	NVG	Wed, Feb 28, 2024	11.76	11.83	11.75	11.78
5399	NYSE	NVG	Tue, Feb 27, 2024	11.78	11.80	11.73	11.75
5398	NYSE	NVG	Mon, Feb 26, 2024	11.87	11.88	11.75	11.78
5397	NYSE	NVG	Fri, Feb 23, 2024	11.86	11.87	11.82	11.85
5396	NYSE	NVG	Thu, Feb 22, 2024	11.88	11.90	11.81	11.82
5395	NYSE	NVG	Wed, Feb 21, 2024	11.84	11.88	11.81	11.83
5394	NYSE	NVG	Tue, Feb 20, 2024	11.77	11.84	11.77	11.81
5393	NYSE	NVG	Fri, Feb 16, 2024	11.81	11.84	11.78	11.78
5392	NYSE	NVG	Thu, Feb 15, 2024	11.85	11.89	11.83	11.87
5391	NYSE	NVG	Wed, Feb 14, 2024	11.74	11.83	11.74	11.80
5390	NYSE	NVG	Tue, Feb 13, 2024	11.80	11.82	11.73	11.75
5389	NYSE	NVG	Mon, Feb 12, 2024	11.87	11.91	11.85	11.88
5388	NYSE	NVG	Fri, Feb 9, 2024	11.89	11.94	11.82	11.84
5387	NYSE	NVG	Thu, Feb 8, 2024	11.82	11.90	11.82	11.86
5386	NYSE	NVG	Wed, Feb 7, 2024	12.02	12.05	11.89	11.89
5385	NYSE	NVG	Tue, Feb 6, 2024	11.88	12.00	11.86	11.99
5384	NYSE	NVG	Mon, Feb 5, 2024	11.91	11.93	11.84	11.87
5383	NYSE	NVG	Fri, Feb 2, 2024	11.97	12.01	11.91	11.99
5382	NYSE	NVG	Thu, Feb 1, 2024	11.99	12.06	11.99	12.05
5381	NYSE	NVG	Wed, Jan 31, 2024	11.83	11.95	11.77	11.90
5380	NYSE	NVG	Tue, Jan 30, 2024	11.72	11.83	11.70	11.81
5379	NYSE	NVG	Mon, Jan 29, 2024	11.58	11.70	11.57	11.70
5378	NYSE	NVG	Fri, Jan 26, 2024	11.55	11.59	11.51	11.58
5377	NYSE	NVG	Thu, Jan 25, 2024	11.56	11.63	11.54	11.55
5376	NYSE	NVG	Wed, Jan 24, 2024	11.60	11.61	11.53	11.54
5375	NYSE	NVG	Tue, Jan 23, 2024	11.57	11.61	11.50	11.51
5374	NYSE	NVG	Mon, Jan 22, 2024	11.62	11.70	11.58	11.60
5373	NYSE	NVG	Fri, Jan 19, 2024	11.52	11.55	11.36	11.55
5372	NYSE	NVG	Thu, Jan 18, 2024	11.62	11.64	11.53	11.53
5371	NYSE	NVG	Wed, Jan 17, 2024	11.69	11.71	11.62	11.62
5370	NYSE	NVG	Tue, Jan 16, 2024	11.88	11.91	11.72	11.73
5369	NYSE	NVG	Fri, Jan 12, 2024	11.92	11.96	11.90	11.91
5368	NYSE	NVG	Thu, Jan 11, 2024	11.84	11.95	11.84	11.92
5367	NYSE	NVG	Wed, Jan 10, 2024	11.96	11.96	11.86	11.83
5366	NYSE	NVG	Tue, Jan 9, 2024	12.01	12.04	11.89	11.93
5365	NYSE	NVG	Mon, Jan 8, 2024	11.98	12.06	11.94	12.06
5364	NYSE	NVG	Fri, Jan 5, 2024	11.95	12.00	11.90	11.94
5363	NYSE	NVG	Thu, Jan 4, 2024	11.99	11.99	11.93	11.95
5362	NYSE	NVG	Wed, Jan 3, 2024	11.94	12.00	11.91	12.00
5361	NYSE	NVG	Tue, Jan 2, 2024	11.80	11.94	11.77	11.94
5360	NYSE	NVG	Fri, Dec 29, 2023	11.83	11.87	11.79	11.82
5359	NYSE	NVG	Thu, Dec 28, 2023	11.83	11.89	11.77	11.79
5358	NYSE	NVG	Wed, Dec 27, 2023	11.87	11.91	11.85	11.86
5357	NYSE	NVG	Tue, Dec 26, 2023	11.89	11.94	11.83	11.83
5356	NYSE	NVG	Fri, Dec 22, 2023	11.82	11.88	11.81	11.86
5355	NYSE	NVG	Thu, Dec 21, 2023	11.84	11.91	11.75	11.79
5354	NYSE	NVG	Wed, Dec 20, 2023	12.00	12.02	11.81	11.81
5353	NYSE	NVG	Tue, Dec 19, 2023	12.00	12.02	11.98	12.01
5352	NYSE	NVG	Mon, Dec 18, 2023	11.97	11.98	11.95	11.97
5351	NYSE	NVG	Fri, Dec 15, 2023	11.87	11.99	11.87	11.97
5350	NYSE	NVG	Thu, Dec 14, 2023	11.72	11.88	11.70	11.88
5349	NYSE	NVG	Wed, Dec 13, 2023	11.56	11.67	11.53	11.62
5348	NYSE	NVG	Tue, Dec 12, 2023	11.63	11.65	11.53	11.56
5347	NYSE	NVG	Mon, Dec 11, 2023	11.59	11.59	11.54	11.55
5346	NYSE	NVG	Fri, Dec 8, 2023	11.55	11.62	11.54	11.60
5345	NYSE	NVG	Thu, Dec 7, 2023	11.51	11.60	11.49	11.57
5344	NYSE	NVG	Wed, Dec 6, 2023	11.50	11.53	11.43	11.46
5343	NYSE	NVG	Tue, Dec 5, 2023	11.50	11.53	11.43	11.47
5342	NYSE	NVG	Mon, Dec 4, 2023	11.45	11.50	11.42	11.47
5341	NYSE	NVG	Fri, Dec 1, 2023	11.38	11.50	11.34	11.46
5340	NYSE	NVG	Thu, Nov 30, 2023	11.27	11.30	11.21	11.29
5339	NYSE	NVG	Wed, Nov 29, 2023	11.19	11.33	11.15	11.31
5338	NYSE	NVG	Tue, Nov 28, 2023	11.08	11.15	11.05	11.13
5337	NYSE	NVG	Mon, Nov 27, 2023	11.11	11.19	11.08	11.08
5336	NYSE	NVG	Fri, Nov 24, 2023	11.09	11.15	11.09	11.12
5335	NYSE	NVG	Wed, Nov 22, 2023	11.05	11.15	11.05	11.14
5334	NYSE	NVG	Tue, Nov 21, 2023	10.94	11.09	10.93	11.05
5333	NYSE	NVG	Mon, Nov 20, 2023	10.93	11.01	10.93	10.95
5332	NYSE	NVG	Fri, Nov 17, 2023	11.03	11.04	10.93	10.95
5331	NYSE	NVG	Thu, Nov 16, 2023	10.90	11.05	10.88	11.00
5330	NYSE	NVG	Wed, Nov 15, 2023	10.80	10.85	10.75	10.80
5329	NYSE	NVG	Tue, Nov 14, 2023	10.77	10.89	10.77	10.85
5328	NYSE	NVG	Mon, Nov 13, 2023	10.74	10.77	10.69	10.65
5327	NYSE	NVG	Fri, Nov 10, 2023	10.70	10.78	10.67	10.78
5326	NYSE	NVG	Thu, Nov 9, 2023	10.78	10.78	10.59	10.63
5325	NYSE	NVG	Wed, Nov 8, 2023	10.72	10.78	10.66	10.76
5324	NYSE	NVG	Tue, Nov 7, 2023	10.61	10.86	10.61	10.67
5323	NYSE	NVG	Mon, Nov 6, 2023	10.57	10.62	10.46	10.59
5322	NYSE	NVG	Fri, Nov 3, 2023	10.51	10.69	10.50	10.63
5321	NYSE	NVG	Thu, Nov 2, 2023	10.27	10.39	10.27	10.35
5320	NYSE	NVG	Wed, Nov 1, 2023	10.10	10.27	10.07	10.17
5319	NYSE	NVG	Tue, Oct 31, 2023	9.99	10.04	9.99	10.03
5318	NYSE	NVG	Mon, Oct 30, 2023	9.90	9.99	9.90	9.96
5317	NYSE	NVG	Fri, Oct 27, 2023	9.81	9.90	9.81	9.89
5316	NYSE	NVG	Thu, Oct 26, 2023	9.72	9.85	9.70	9.83
5315	NYSE	NVG	Wed, Oct 25, 2023	9.84	9.86	9.68	9.72
5314	NYSE	NVG	Tue, Oct 24, 2023	9.85	9.97	9.85	9.91
5313	NYSE	NVG	Mon, Oct 23, 2023	9.82	9.93	9.78	9.78
5312	NYSE	NVG	Fri, Oct 20, 2023	9.89	9.91	9.84	9.88
5311	NYSE	NVG	Thu, Oct 19, 2023	9.90	9.96	9.88	9.91
5310	NYSE	NVG	Wed, Oct 18, 2023	10.01	10.03	9.90	9.94
5309	NYSE	NVG	Tue, Oct 17, 2023	10.10	10.14	10.05	10.06
5308	NYSE	NVG	Mon, Oct 16, 2023	10.31	10.32	10.20	10.20
5307	NYSE	NVG	Fri, Oct 13, 2023	10.31	10.37	10.28	10.31
5306	NYSE	NVG	Thu, Oct 12, 2023	10.43	10.45	10.24	10.28
5305	NYSE	NVG	Wed, Oct 11, 2023	10.41	10.47	10.40	10.41
5304	NYSE	NVG	Tue, Oct 10, 2023	10.31	10.36	10.22	10.34
5303	NYSE	NVG	Mon, Oct 9, 2023	10.23	10.31	10.22	10.29
5302	NYSE	NVG	Fri, Oct 6, 2023	10.20	10.27	10.12	10.22
5301	NYSE	NVG	Thu, Oct 5, 2023	10.36	10.36	10.23	10.26
5300	NYSE	NVG	Wed, Oct 4, 2023	10.31	10.36	10.29	10.35
5299	NYSE	NVG	Tue, Oct 3, 2023	10.11	10.34	10.09	10.24
5298	NYSE	NVG	Mon, Oct 2, 2023	10.37	10.41	10.26	10.27
5297	NYSE	NVG	Fri, Sep 29, 2023	10.28	10.35	10.26	10.31
5296	NYSE	NVG	Thu, Sep 28, 2023	10.24	10.34	10.20	10.24
5295	NYSE	NVG	Wed, Sep 27, 2023	10.47	10.48	10.23	10.24
5294	NYSE	NVG	Tue, Sep 26, 2023	10.64	10.66	10.43	10.44
5293	NYSE	NVG	Mon, Sep 25, 2023	10.71	10.73	10.66	10.66
5292	NYSE	NVG	Fri, Sep 22, 2023	10.73	10.79	10.73	10.79
5291	NYSE	NVG	Thu, Sep 21, 2023	10.76	10.79	10.73	10.73
5290	NYSE	NVG	Wed, Sep 20, 2023	10.84	10.89	10.82	10.84
5289	NYSE	NVG	Tue, Sep 19, 2023	10.82	10.83	10.74	10.82
5288	NYSE	NVG	Mon, Sep 18, 2023	10.83	10.88	10.80	10.82
5287	NYSE	NVG	Fri, Sep 15, 2023	10.87	10.90	10.83	10.85
5286	NYSE	NVG	Thu, Sep 14, 2023	10.93	10.93	10.86	10.90
5285	NYSE	NVG	Wed, Sep 13, 2023	10.92	10.98	10.92	10.91
5284	NYSE	NVG	Tue, Sep 12, 2023	10.95	10.97	10.93	10.95
5283	NYSE	NVG	Mon, Sep 11, 2023	10.97	11.00	10.96	10.98
5282	NYSE	NVG	Fri, Sep 8, 2023	11.07	11.10	10.96	10.97
5281	NYSE	NVG	Thu, Sep 7, 2023	11.10	11.10	11.00	11.05
5280	NYSE	NVG	Wed, Sep 6, 2023	11.16	11.16	11.08	11.08
5279	NYSE	NVG	Tue, Sep 5, 2023	11.16	11.20	11.12	11.12
5278	NYSE	NVG	Fri, Sep 1, 2023	11.19	11.21	11.12	11.19
5277	NYSE	NVG	Thu, Aug 31, 2023	11.22	11.24	11.14	11.15
5276	NYSE	NVG	Wed, Aug 30, 2023	11.22	11.23	11.15	11.21
5275	NYSE	NVG	Tue, Aug 29, 2023	11.12	11.18	11.11	11.17
5274	NYSE	NVG	Mon, Aug 28, 2023	11.07	11.11	11.07	11.09
5273	NYSE	NVG	Fri, Aug 25, 2023	11.06	11.10	11.04	11.07
5272	NYSE	NVG	Thu, Aug 24, 2023	11.11	11.12	11.05	11.05
5271	NYSE	NVG	Wed, Aug 23, 2023	11.15	11.16	11.12	11.13
5270	NYSE	NVG	Tue, Aug 22, 2023	11.17	11.19	11.09	11.11
5269	NYSE	NVG	Mon, Aug 21, 2023	11.13	11.15	11.05	11.12
5268	NYSE	NVG	Fri, Aug 18, 2023	11.24	11.32	11.17	11.17
5267	NYSE	NVG	Thu, Aug 17, 2023	11.25	11.31	11.22	11.25
5266	NYSE	NVG	Wed, Aug 16, 2023	11.37	11.37	11.25	11.25
5265	NYSE	NVG	Tue, Aug 15, 2023	11.41	11.41	11.37	11.38
5264	NYSE	NVG	Mon, Aug 14, 2023	11.38	11.42	11.36	11.40
5263	NYSE	NVG	Fri, Aug 11, 2023	11.40	11.47	11.39	11.41
5262	NYSE	NVG	Thu, Aug 10, 2023	11.43	11.50	11.39	11.39
5261	NYSE	NVG	Wed, Aug 9, 2023	11.44	11.49	11.43	11.46
5260	NYSE	NVG	Tue, Aug 8, 2023	11.43	11.46	11.37	11.44
5259	NYSE	NVG	Mon, Aug 7, 2023	11.45	11.50	11.38	11.43
5258	NYSE	NVG	Fri, Aug 4, 2023	11.45	11.54	11.45	11.48
5257	NYSE	NVG	Thu, Aug 3, 2023	11.58	11.58	11.42	11.43
5256	NYSE	NVG	Wed, Aug 2, 2023	11.71	11.73	11.64	11.70
5255	NYSE	NVG	Tue, Aug 1, 2023	11.80	11.83	11.73	11.79
5254	NYSE	NVG	Mon, Jul 31, 2023	11.79	11.87	11.78	11.83
5253	NYSE	NVG	Fri, Jul 28, 2023	11.74	11.82	11.72	11.78
5252	NYSE	NVG	Thu, Jul 27, 2023	11.75	11.76	11.69	11.69
5251	NYSE	NVG	Wed, Jul 26, 2023	11.79	11.83	11.76	11.77
5250	NYSE	NVG	Tue, Jul 25, 2023	11.77	11.84	11.77	11.81
5249	NYSE	NVG	Mon, Jul 24, 2023	11.84	11.86	11.78	11.80
5248	NYSE	NVG	Fri, Jul 21, 2023	11.84	11.90	11.83	11.88
5247	NYSE	NVG	Thu, Jul 20, 2023	11.73	11.82	11.73	11.82
5246	NYSE	NVG	Wed, Jul 19, 2023	11.71	11.81	11.71	11.81
5245	NYSE	NVG	Tue, Jul 18, 2023	11.69	11.74	11.69	11.69
5244	NYSE	NVG	Mon, Jul 17, 2023	11.58	11.70	11.57	11.65
5243	NYSE	NVG	Fri, Jul 14, 2023	11.69	11.70	11.57	11.60
5242	NYSE	NVG	Thu, Jul 13, 2023	11.67	11.71	11.64	11.65
5241	NYSE	NVG	Wed, Jul 12, 2023	11.62	11.67	11.60	11.63
5240	NYSE	NVG	Tue, Jul 11, 2023	11.55	11.57	11.52	11.55
5239	NYSE	NVG	Mon, Jul 10, 2023	11.53	11.58	11.50	11.55
5238	NYSE	NVG	Fri, Jul 7, 2023	11.44	11.56	11.44	11.50
5237	NYSE	NVG	Thu, Jul 6, 2023	11.56	11.59	11.46	11.48
5236	NYSE	NVG	Wed, Jul 5, 2023	11.80	11.81	11.64	11.64
5235	NYSE	NVG	Mon, Jul 3, 2023	11.76	11.79	11.72	11.78
5234	NYSE	NVG	Fri, Jun 30, 2023	11.66	11.73	11.65	11.70
5233	NYSE	NVG	Thu, Jun 29, 2023	11.67	11.70	11.59	11.63
5232	NYSE	NVG	Wed, Jun 28, 2023	11.72	11.82	11.71	11.73
5231	NYSE	NVG	Tue, Jun 27, 2023	11.77	11.87	11.68	11.71
5230	NYSE	NVG	Mon, Jun 26, 2023	11.67	11.73	11.65	11.73
5229	NYSE	NVG	Fri, Jun 23, 2023	11.56	11.64	11.53	11.62
5228	NYSE	NVG	Thu, Jun 22, 2023	11.45	11.56	11.45	11.54
5227	NYSE	NVG	Wed, Jun 21, 2023	11.43	11.52	11.42	11.50
5226	NYSE	NVG	Tue, Jun 20, 2023	11.38	11.50	11.37	11.47
5225	NYSE	NVG	Fri, Jun 16, 2023	11.48	11.50	11.41	11.42
5224	NYSE	NVG	Thu, Jun 15, 2023	11.50	11.55	11.48	11.49
5223	NYSE	NVG	Wed, Jun 14, 2023	11.43	11.52	11.43	11.50
5222	NYSE	NVG	Tue, Jun 13, 2023	11.55	11.55	11.46	11.44
5221	NYSE	NVG	Mon, Jun 12, 2023	11.60	11.65	11.51	11.54
5220	NYSE	NVG	Fri, Jun 9, 2023	11.58	11.63	11.58	11.60
5219	NYSE	NVG	Thu, Jun 8, 2023	11.54	11.70	11.54	11.59
5218	NYSE	NVG	Wed, Jun 7, 2023	11.48	11.56	11.40	11.54
5217	NYSE	NVG	Tue, Jun 6, 2023	11.44	11.52	11.44	11.50
5216	NYSE	NVG	Mon, Jun 5, 2023	11.37	11.46	11.40	11.40
5215	NYSE	NVG	Fri, Jun 2, 2023	11.55	11.61	11.36	11.40
5214	NYSE	NVG	Thu, Jun 1, 2023	11.51	11.59	11.50	11.56
5213	NYSE	NVG	Wed, May 31, 2023	11.33	11.47	11.33	11.47
5212	NYSE	NVG	Tue, May 30, 2023	11.26	11.33	11.26	11.32
5211	NYSE	NVG	Fri, May 26, 2023	11.19	11.27	11.19	11.22
5210	NYSE	NVG	Thu, May 25, 2023	11.14	11.22	11.13	11.21
5209	NYSE	NVG	Wed, May 24, 2023	11.33	11.36	11.11	11.13
5208	NYSE	NVG	Tue, May 23, 2023	11.35	11.37	11.33	11.34
5207	NYSE	NVG	Mon, May 22, 2023	11.47	11.49	11.35	11.35
5206	NYSE	NVG	Fri, May 19, 2023	11.50	11.52	11.47	11.48
5205	NYSE	NVG	Thu, May 18, 2023	11.52	11.55	11.50	11.52
5204	NYSE	NVG	Wed, May 17, 2023	11.62	11.63	11.53	11.54
5203	NYSE	NVG	Tue, May 16, 2023	11.60	11.62	11.58	11.62
5202	NYSE	NVG	Mon, May 15, 2023	11.59	11.62	11.58	11.60
5201	NYSE	NVG	Fri, May 12, 2023	11.62	11.72	11.57	11.59
5200	NYSE	NVG	Thu, May 11, 2023	11.74	11.75	11.64	11.60
5199	NYSE	NVG	Wed, May 10, 2023	11.76	11.78	11.69	11.72
5198	NYSE	NVG	Tue, May 9, 2023	11.75	11.79	11.73	11.73
5197	NYSE	NVG	Mon, May 8, 2023	11.80	11.80	11.72	11.75
5196	NYSE	NVG	Fri, May 5, 2023	11.77	11.83	11.73	11.81
5195	NYSE	NVG	Thu, May 4, 2023	11.65	11.75	11.65	11.75
5194	NYSE	NVG	Wed, May 3, 2023	11.67	11.71	11.66	11.67
5193	NYSE	NVG	Tue, May 2, 2023	11.65	11.70	11.64	11.67
5192	NYSE	NVG	Mon, May 1, 2023	11.75	11.77	11.66	11.68
5191	NYSE	NVG	Fri, Apr 28, 2023	11.80	11.83	11.75	11.80
5190	NYSE	NVG	Thu, Apr 27, 2023	11.74	11.78	11.72	11.78
5189	NYSE	NVG	Wed, Apr 26, 2023	11.66	11.76	11.65	11.71
5188	NYSE	NVG	Tue, Apr 25, 2023	11.70	11.72	11.61	11.64
5187	NYSE	NVG	Mon, Apr 24, 2023	11.67	11.73	11.60	11.70
5186	NYSE	NVG	Fri, Apr 21, 2023	11.69	11.70	11.62	11.66
5185	NYSE	NVG	Thu, Apr 20, 2023	11.58	11.68	11.58	11.67
5184	NYSE	NVG	Wed, Apr 19, 2023	11.61	11.64	11.56	11.61
5183	NYSE	NVG	Tue, Apr 18, 2023	11.81	11.81	11.65	11.65
5182	NYSE	NVG	Mon, Apr 17, 2023	11.87	11.87	11.81	11.83
5181	NYSE	NVG	Fri, Apr 14, 2023	11.97	11.98	11.87	11.91
5180	NYSE	NVG	Thu, Apr 13, 2023	12.00	12.02	11.98	12.01
5179	NYSE	NVG	Wed, Apr 12, 2023	11.96	12.05	11.92	12.00
5178	NYSE	NVG	Tue, Apr 11, 2023	11.80	11.90	11.80	11.90
5177	NYSE	NVG	Mon, Apr 10, 2023	11.88	11.88	11.80	11.80
5176	NYSE	NVG	Thu, Apr 6, 2023	11.89	11.93	11.84	11.85
5175	NYSE	NVG	Wed, Apr 5, 2023	11.75	11.87	11.75	11.85
5174	NYSE	NVG	Tue, Apr 4, 2023	11.76	11.83	11.71	11.75
5173	NYSE	NVG	Mon, Apr 3, 2023	11.83	11.87	11.70	11.76
5172	NYSE	NVG	Fri, Mar 31, 2023	11.70	11.80	11.70	11.78
5171	NYSE	NVG	Thu, Mar 30, 2023	11.56	11.66	11.56	11.63
5170	NYSE	NVG	Wed, Mar 29, 2023	11.51	11.57	11.47	11.52
5169	NYSE	NVG	Tue, Mar 28, 2023	11.46	11.52	11.44	11.50
5168	NYSE	NVG	Mon, Mar 27, 2023	11.42	11.49	11.41	11.44
5167	NYSE	NVG	Fri, Mar 24, 2023	11.39	11.45	11.39	11.42
5166	NYSE	NVG	Thu, Mar 23, 2023	11.44	11.48	11.35	11.35
5165	NYSE	NVG	Wed, Mar 22, 2023	11.46	11.54	11.41	11.50
5164	NYSE	NVG	Tue, Mar 21, 2023	11.52	11.54	11.41	11.50
5163	NYSE	NVG	Mon, Mar 20, 2023	11.66	11.70	11.53	11.54
5162	NYSE	NVG	Fri, Mar 17, 2023	11.68	11.72	11.63	11.66
5161	NYSE	NVG	Thu, Mar 16, 2023	11.61	11.79	11.61	11.66
5160	NYSE	NVG	Wed, Mar 15, 2023	11.55	11.61	11.50	11.61
5159	NYSE	NVG	Tue, Mar 14, 2023	11.52	11.62	11.49	11.51
5158	NYSE	NVG	Mon, Mar 13, 2023	11.58	11.66	11.53	11.51
5157	NYSE	NVG	Fri, Mar 10, 2023	11.61	11.70	11.56	11.57
5156	NYSE	NVG	Thu, Mar 9, 2023	11.55	11.64	11.54	11.56
5155	NYSE	NVG	Wed, Mar 8, 2023	11.51	11.56	11.51	11.53
5154	NYSE	NVG	Tue, Mar 7, 2023	11.54	11.55	11.48	11.51
5153	NYSE	NVG	Mon, Mar 6, 2023	11.60	11.62	11.47	11.49
5152	NYSE	NVG	Fri, Mar 3, 2023	11.62	11.67	11.57	11.58
5151	NYSE	NVG	Thu, Mar 2, 2023	11.58	11.58	11.49	11.58
5150	NYSE	NVG	Wed, Mar 1, 2023	11.76	11.78	11.58	11.62
5149	NYSE	NVG	Tue, Feb 28, 2023	11.74	11.81	11.71	11.76
5148	NYSE	NVG	Mon, Feb 27, 2023	11.78	11.81	11.70	11.77
5147	NYSE	NVG	Fri, Feb 24, 2023	11.75	11.79	11.70	11.70
5146	NYSE	NVG	Thu, Feb 23, 2023	11.84	11.88	11.78	11.81
5145	NYSE	NVG	Wed, Feb 22, 2023	11.84	11.85	11.77	11.80
5144	NYSE	NVG	Tue, Feb 21, 2023	11.94	11.95	11.81	11.83
5143	NYSE	NVG	Fri, Feb 17, 2023	12.07	12.09	11.94	11.97
5142	NYSE	NVG	Thu, Feb 16, 2023	12.32	12.32	12.10	12.10
5141	NYSE	NVG	Wed, Feb 15, 2023	12.36	12.41	12.34	12.39
5140	NYSE	NVG	Tue, Feb 14, 2023	12.37	12.42	12.32	12.39
5139	NYSE	NVG	Mon, Feb 13, 2023	12.42	12.51	12.41	12.41
5138	NYSE	NVG	Fri, Feb 10, 2023	12.34	12.46	12.34	12.39
5137	NYSE	NVG	Thu, Feb 9, 2023	12.54	12.54	12.32	12.39
5136	NYSE	NVG	Wed, Feb 8, 2023	12.52	12.56	12.46	12.47
5135	NYSE	NVG	Tue, Feb 7, 2023	12.44	12.57	12.38	12.49
5134	NYSE	NVG	Mon, Feb 6, 2023	12.50	12.52	12.39	12.39
5133	NYSE	NVG	Fri, Feb 3, 2023	12.65	12.68	12.53	12.62
5132	NYSE	NVG	Thu, Feb 2, 2023	12.72	12.83	12.68	12.69
5131	NYSE	NVG	Wed, Feb 1, 2023	12.66	12.72	12.63	12.66
5130	NYSE	NVG	Tue, Jan 31, 2023	12.53	12.67	12.53	12.63
5129	NYSE	NVG	Mon, Jan 30, 2023	12.52	12.56	12.46	12.51
5128	NYSE	NVG	Fri, Jan 27, 2023	12.50	12.54	12.46	12.54
5127	NYSE	NVG	Thu, Jan 26, 2023	12.60	12.64	12.50	12.53
5126	NYSE	NVG	Wed, Jan 25, 2023	12.58	12.64	12.54	12.61
5125	NYSE	NVG	Tue, Jan 24, 2023	12.68	12.72	12.34	12.68
5124	NYSE	NVG	Mon, Jan 23, 2023	12.53	12.65	12.49	12.64
5123	NYSE	NVG	Fri, Jan 20, 2023	12.32	12.52	12.30	12.50
5122	NYSE	NVG	Thu, Jan 19, 2023	12.35	12.43	12.29	12.32
5121	NYSE	NVG	Wed, Jan 18, 2023	12.20	12.35	12.20	12.30
5120	NYSE	NVG	Tue, Jan 17, 2023	12.19	12.25	12.10	12.12
5119	NYSE	NVG	Fri, Jan 13, 2023	12.19	12.32	12.15	12.20
5118	NYSE	NVG	Thu, Jan 12, 2023	12.11	12.23	12.04	12.22
5117	NYSE	NVG	Wed, Jan 11, 2023	12.06	12.13	12.00	12.05
5116	NYSE	NVG	Tue, Jan 10, 2023	12.15	12.19	11.98	11.99
5115	NYSE	NVG	Mon, Jan 9, 2023	12.07	12.21	12.07	12.14
5114	NYSE	NVG	Fri, Jan 6, 2023	12.18	12.21	11.98	12.15
5113	NYSE	NVG	Thu, Jan 5, 2023	12.21	12.28	12.03	12.12
5112	NYSE	NVG	Wed, Jan 4, 2023	12.26	12.31	12.17	12.31
5111	NYSE	NVG	Tue, Jan 3, 2023	12.26	12.39	12.23	12.36
5110	NYSE	NVG	Fri, Dec 30, 2022	11.92	12.14	11.83	12.14
5109	NYSE	NVG	Thu, Dec 29, 2022	11.87	12.04	11.80	11.90
5108	NYSE	NVG	Wed, Dec 28, 2022	11.75	11.90	11.75	11.85
5107	NYSE	NVG	Tue, Dec 27, 2022	11.93	11.97	11.70	11.73
5106	NYSE	NVG	Fri, Dec 23, 2022	11.95	12.02	11.91	11.98
5105	NYSE	NVG	Thu, Dec 22, 2022	11.91	12.01	11.83	11.95
5104	NYSE	NVG	Wed, Dec 21, 2022	11.92	11.96	11.90	11.91
5103	NYSE	NVG	Tue, Dec 20, 2022	11.97	12.00	11.86	11.96
5102	NYSE	NVG	Mon, Dec 19, 2022	12.03	12.07	11.96	12.03
5101	NYSE	NVG	Fri, Dec 16, 2022	12.08	12.14	11.94	12.11
5100	NYSE	NVG	Thu, Dec 15, 2022	12.41	12.54	12.21	12.23
5099	NYSE	NVG	Wed, Dec 14, 2022	12.27	12.50	12.23	12.46
5098	NYSE	NVG	Tue, Dec 13, 2022	12.34	12.45	12.27	12.25
5097	NYSE	NVG	Mon, Dec 12, 2022	12.19	12.25	12.15	12.18
5096	NYSE	NVG	Fri, Dec 9, 2022	12.32	12.36	12.13	12.16
5095	NYSE	NVG	Thu, Dec 8, 2022	12.47	12.53	12.34	12.37
5094	NYSE	NVG	Wed, Dec 7, 2022	12.53	12.63	12.45	12.48
5093	NYSE	NVG	Tue, Dec 6, 2022	12.51	12.57	12.44	12.54
5092	NYSE	NVG	Mon, Dec 5, 2022	12.67	12.67	12.49	12.52
5091	NYSE	NVG	Fri, Dec 2, 2022	12.61	12.77	12.52	12.71
5090	NYSE	NVG	Thu, Dec 1, 2022	12.81	12.84	12.61	12.64
5089	NYSE	NVG	Wed, Nov 30, 2022	12.43	12.68	12.39	12.68
5088	NYSE	NVG	Tue, Nov 29, 2022	12.22	12.39	12.20	12.38
5087	NYSE	NVG	Mon, Nov 28, 2022	12.22	12.34	12.21	12.24
5086	NYSE	NVG	Fri, Nov 25, 2022	12.15	12.26	12.15	12.26
5085	NYSE	NVG	Wed, Nov 23, 2022	12.14	12.22	12.09	12.16
5084	NYSE	NVG	Tue, Nov 22, 2022	12.02	12.14	11.99	12.10
5083	NYSE	NVG	Mon, Nov 21, 2022	11.85	11.98	11.83	11.98
5082	NYSE	NVG	Fri, Nov 18, 2022	11.75	11.86	11.66	11.86
5081	NYSE	NVG	Thu, Nov 17, 2022	11.47	11.80	11.47	11.70
5080	NYSE	NVG	Wed, Nov 16, 2022	11.43	11.66	11.43	11.58
5079	NYSE	NVG	Tue, Nov 15, 2022	11.37	11.47	11.30	11.39
5078	NYSE	NVG	Mon, Nov 14, 2022	11.40	11.40	11.21	11.21
5077	NYSE	NVG	Fri, Nov 11, 2022	11.35	11.51	11.30	11.39
5076	NYSE	NVG	Thu, Nov 10, 2022	11.09	11.38	11.09	11.38
5075	NYSE	NVG	Wed, Nov 9, 2022	10.94	11.04	10.91	10.93
5074	NYSE	NVG	Tue, Nov 8, 2022	11.05	11.13	10.96	10.99
5073	NYSE	NVG	Mon, Nov 7, 2022	11.08	11.10	10.95	11.05
5072	NYSE	NVG	Fri, Nov 4, 2022	10.95	11.06	10.92	11.03
5071	NYSE	NVG	Thu, Nov 3, 2022	10.90	10.96	10.85	10.91
5070	NYSE	NVG	Wed, Nov 2, 2022	11.04	11.15	10.98	11.00
5069	NYSE	NVG	Tue, Nov 1, 2022	11.17	11.17	11.02	11.08
5068	NYSE	NVG	Mon, Oct 31, 2022	11.10	11.13	10.98	11.03
5067	NYSE	NVG	Fri, Oct 28, 2022	10.99	11.13	10.96	11.13
5066	NYSE	NVG	Thu, Oct 27, 2022	11.06	11.10	10.92	11.00
5065	NYSE	NVG	Wed, Oct 26, 2022	11.03	11.19	11.02	11.08
5064	NYSE	NVG	Tue, Oct 25, 2022	10.95	11.04	10.91	11.00
5063	NYSE	NVG	Mon, Oct 24, 2022	11.15	11.18	10.89	10.92
5062	NYSE	NVG	Fri, Oct 21, 2022	11.22	11.26	11.15	11.15
5061	NYSE	NVG	Thu, Oct 20, 2022	11.30	11.32	11.22	11.26
5060	NYSE	NVG	Wed, Oct 19, 2022	11.33	11.39	11.24	11.30
5059	NYSE	NVG	Tue, Oct 18, 2022	11.36	11.42	11.32	11.37
5058	NYSE	NVG	Mon, Oct 17, 2022	11.46	11.54	11.33	11.36
5057	NYSE	NVG	Fri, Oct 14, 2022	11.53	11.58	11.32	11.39
5056	NYSE	NVG	Thu, Oct 13, 2022	11.54	11.67	11.50	11.50
5055	NYSE	NVG	Wed, Oct 12, 2022	11.74	11.80	11.73	11.68
5054	NYSE	NVG	Tue, Oct 11, 2022	11.72	11.83	11.68	11.74
5053	NYSE	NVG	Mon, Oct 10, 2022	11.78	11.78	11.65	11.72
5052	NYSE	NVG	Fri, Oct 7, 2022	11.80	11.90	11.73	11.79
5051	NYSE	NVG	Thu, Oct 6, 2022	11.81	11.92	11.80	11.83
5050	NYSE	NVG	Wed, Oct 5, 2022	11.89	11.95	11.75	11.84
5049	NYSE	NVG	Tue, Oct 4, 2022	11.88	12.07	11.87	12.07
5048	NYSE	NVG	Mon, Oct 3, 2022	11.82	12.07	11.77	11.84
5047	NYSE	NVG	Fri, Sep 30, 2022	11.86	11.94	11.67	11.67
5046	NYSE	NVG	Thu, Sep 29, 2022	12.06	12.11	11.73	11.81
5045	NYSE	NVG	Wed, Sep 28, 2022	12.31	12.41	12.11	12.16
5044	NYSE	NVG	Tue, Sep 27, 2022	12.38	12.49	12.22	12.26
5043	NYSE	NVG	Mon, Sep 26, 2022	12.48	12.50	12.34	12.35
5042	NYSE	NVG	Fri, Sep 23, 2022	12.64	12.68	12.44	12.51
5041	NYSE	NVG	Thu, Sep 22, 2022	12.78	12.85	12.72	12.73
5040	NYSE	NVG	Wed, Sep 21, 2022	12.78	12.88	12.74	12.83
5039	NYSE	NVG	Tue, Sep 20, 2022	12.79	12.86	12.76	12.78
5038	NYSE	NVG	Mon, Sep 19, 2022	12.97	12.99	12.83	12.88
5037	NYSE	NVG	Fri, Sep 16, 2022	13.04	13.08	12.98	13.01
5036	NYSE	NVG	Thu, Sep 15, 2022	13.20	13.25	13.11	13.19
5035	NYSE	NVG	Wed, Sep 14, 2022	13.27	13.31	13.22	13.25
5034	NYSE	NVG	Tue, Sep 13, 2022	13.25	13.35	13.20	13.28
5033	NYSE	NVG	Mon, Sep 12, 2022	13.45	13.57	13.37	13.37
5032	NYSE	NVG	Fri, Sep 9, 2022	13.50	13.59	13.38	13.42
5031	NYSE	NVG	Thu, Sep 8, 2022	13.59	13.64	13.50	13.50
5030	NYSE	NVG	Wed, Sep 7, 2022	13.62	13.67	13.56	13.65
5029	NYSE	NVG	Tue, Sep 6, 2022	13.68	13.70	13.48	13.56
5028	NYSE	NVG	Fri, Sep 2, 2022	13.67	13.82	13.64	13.73
5027	NYSE	NVG	Thu, Sep 1, 2022	13.73	13.73	13.55	13.60
5026	NYSE	NVG	Wed, Aug 31, 2022	13.86	13.92	13.75	13.84
5025	NYSE	NVG	Tue, Aug 30, 2022	13.73	13.88	13.69	13.81
5024	NYSE	NVG	Mon, Aug 29, 2022	13.98	14.02	13.73	13.73
5023	NYSE	NVG	Fri, Aug 26, 2022	14.13	14.22	14.03	14.05
5022	NYSE	NVG	Thu, Aug 25, 2022	14.09	14.16	14.02	14.11
5021	NYSE	NVG	Wed, Aug 24, 2022	14.05	14.14	14.02	14.05
5020	NYSE	NVG	Tue, Aug 23, 2022	13.99	14.13	13.93	14.10
5019	NYSE	NVG	Mon, Aug 22, 2022	14.19	14.19	14.03	14.04
5018	NYSE	NVG	Fri, Aug 19, 2022	14.31	14.33	14.14	14.25
5017	NYSE	NVG	Thu, Aug 18, 2022	14.37	14.52	14.34	14.44
5016	NYSE	NVG	Wed, Aug 17, 2022	14.46	14.46	14.34	14.37
5015	NYSE	NVG	Tue, Aug 16, 2022	14.55	14.60	14.43	14.51
5014	NYSE	NVG	Mon, Aug 15, 2022	14.57	14.73	14.57	14.61
5013	NYSE	NVG	Fri, Aug 12, 2022	14.39	14.64	14.38	14.57
5012	NYSE	NVG	Thu, Aug 11, 2022	14.52	14.57	14.43	14.37
5011	NYSE	NVG	Wed, Aug 10, 2022	14.35	14.55	14.30	14.53
5010	NYSE	NVG	Tue, Aug 9, 2022	14.22	14.27	14.17	14.22
5009	NYSE	NVG	Mon, Aug 8, 2022	14.19	14.25	14.10	14.22
5008	NYSE	NVG	Fri, Aug 5, 2022	14.21	14.21	14.04	14.09
5007	NYSE	NVG	Thu, Aug 4, 2022	14.28	14.34	14.22	14.29
5006	NYSE	NVG	Wed, Aug 3, 2022	14.27	14.35	14.17	14.24
5005	NYSE	NVG	Tue, Aug 2, 2022	14.21	14.33	14.13	14.23
5004	NYSE	NVG	Mon, Aug 1, 2022	14.00	14.23	13.99	14.18
5003	NYSE	NVG	Fri, Jul 29, 2022	13.76	13.99	13.72	13.99
5002	NYSE	NVG	Thu, Jul 28, 2022	13.65	13.77	13.61	13.72
5001	NYSE	NVG	Wed, Jul 27, 2022	13.56	13.65	13.52	13.58
5000	NYSE	NVG	Tue, Jul 26, 2022	13.59	13.65	13.52	13.55
4999	NYSE	NVG	Mon, Jul 25, 2022	13.63	13.65	13.53	13.55
4998	NYSE	NVG	Fri, Jul 22, 2022	13.64	13.71	13.58	13.64
4997	NYSE	NVG	Thu, Jul 21, 2022	13.64	13.68	13.56	13.61
4996	NYSE	NVG	Wed, Jul 20, 2022	13.71	13.77	13.61	13.63
4995	NYSE	NVG	Tue, Jul 19, 2022	13.72	13.77	13.67	13.68
4994	NYSE	NVG	Mon, Jul 18, 2022	13.73	13.75	13.60	13.69
4993	NYSE	NVG	Fri, Jul 15, 2022	13.89	13.89	13.70	13.72
4992	NYSE	NVG	Thu, Jul 14, 2022	13.74	13.88	13.62	13.81
4991	NYSE	NVG	Wed, Jul 13, 2022	13.64	13.88	13.58	13.80
4990	NYSE	NVG	Tue, Jul 12, 2022	13.76	13.80	13.67	13.71
4989	NYSE	NVG	Mon, Jul 11, 2022	13.71	13.85	13.67	13.70
4988	NYSE	NVG	Fri, Jul 8, 2022	13.60	13.75	13.58	13.67
4987	NYSE	NVG	Thu, Jul 7, 2022	13.50	13.72	13.47	13.66
4986	NYSE	NVG	Wed, Jul 6, 2022	13.53	13.63	13.49	13.52
4985	NYSE	NVG	Tue, Jul 5, 2022	13.33	13.60	13.22	13.51
4984	NYSE	NVG	Fri, Jul 1, 2022	13.28	13.36	13.20	13.35
4983	NYSE	NVG	Thu, Jun 30, 2022	13.06	13.20	12.98	13.11
4982	NYSE	NVG	Wed, Jun 29, 2022	12.79	13.05	12.77	13.05
4981	NYSE	NVG	Tue, Jun 28, 2022	12.79	12.88	12.76	12.80
4980	NYSE	NVG	Mon, Jun 27, 2022	12.87	12.90	12.70	12.73
4979	NYSE	NVG	Fri, Jun 24, 2022	12.83	12.92	12.80	12.87
4978	NYSE	NVG	Thu, Jun 23, 2022	12.86	12.89	12.78	12.80
4977	NYSE	NVG	Wed, Jun 22, 2022	12.71	12.83	12.66	12.74
4976	NYSE	NVG	Tue, Jun 21, 2022	12.67	12.76	12.59	12.67
4975	NYSE	NVG	Fri, Jun 17, 2022	12.60	12.80	12.55	12.64
4974	NYSE	NVG	Thu, Jun 16, 2022	12.70	12.80	12.51	12.64
4973	NYSE	NVG	Wed, Jun 15, 2022	12.90	13.05	12.61	12.92
4972	NYSE	NVG	Tue, Jun 14, 2022	13.06	13.07	12.78	12.90
4971	NYSE	NVG	Mon, Jun 13, 2022	13.17	13.30	12.96	13.00
4970	NYSE	NVG	Fri, Jun 10, 2022	13.53	13.53	13.35	13.44
4969	NYSE	NVG	Thu, Jun 9, 2022	13.71	13.74	13.51	13.60
4968	NYSE	NVG	Wed, Jun 8, 2022	13.90	13.96	13.75	13.77
4967	NYSE	NVG	Tue, Jun 7, 2022	13.75	13.93	13.75	13.90
4966	NYSE	NVG	Mon, Jun 6, 2022	13.89	13.99	13.77	13.84
4965	NYSE	NVG	Fri, Jun 3, 2022	14.16	14.21	13.92	13.98
4964	NYSE	NVG	Thu, Jun 2, 2022	14.21	14.44	14.17	14.32
4963	NYSE	NVG	Wed, Jun 1, 2022	14.22	14.31	14.17	14.25
4962	NYSE	NVG	Tue, May 31, 2022	14.11	14.18	13.95	14.16
4961	NYSE	NVG	Fri, May 27, 2022	14.00	14.25	14.00	14.19
4960	NYSE	NVG	Thu, May 26, 2022	13.66	13.98	13.66	13.89
4959	NYSE	NVG	Wed, May 25, 2022	13.26	13.65	13.24	13.62
4958	NYSE	NVG	Tue, May 24, 2022	13.03	13.18	12.97	13.17
4957	NYSE	NVG	Mon, May 23, 2022	12.86	13.04	12.86	12.97
4956	NYSE	NVG	Fri, May 20, 2022	12.93	13.06	12.83	12.88
4955	NYSE	NVG	Thu, May 19, 2022	12.89	13.01	12.83	12.89
4954	NYSE	NVG	Wed, May 18, 2022	13.19	13.20	12.86	12.97
4953	NYSE	NVG	Tue, May 17, 2022	13.25	13.32	13.16	13.21
4952	NYSE	NVG	Mon, May 16, 2022	13.23	13.29	13.13	13.25
4951	NYSE	NVG	Fri, May 13, 2022	13.38	13.45	13.24	13.27
4950	NYSE	NVG	Thu, May 12, 2022	13.34	13.45	13.20	13.42
4949	NYSE	NVG	Wed, May 11, 2022	13.49	13.60	13.38	13.36
4948	NYSE	NVG	Tue, May 10, 2022	13.49	13.64	13.36	13.52
4947	NYSE	NVG	Mon, May 9, 2022	13.48	13.53	13.31	13.45
4946	NYSE	NVG	Fri, May 6, 2022	13.44	13.58	13.43	13.53
4945	NYSE	NVG	Thu, May 5, 2022	13.67	13.68	13.47	13.49
4944	NYSE	NVG	Wed, May 4, 2022	13.69	13.78	13.46	13.75
4943	NYSE	NVG	Tue, May 3, 2022	13.83	13.83	13.71	13.73
4942	NYSE	NVG	Mon, May 2, 2022	13.78	13.81	13.63	13.78
4941	NYSE	NVG	Fri, Apr 29, 2022	13.78	13.88	13.69	13.78
4940	NYSE	NVG	Thu, Apr 28, 2022	13.62	13.87	13.54	13.82
4939	NYSE	NVG	Wed, Apr 27, 2022	13.70	13.75	13.51	13.55
4938	NYSE	NVG	Tue, Apr 26, 2022	13.71	13.77	13.63	13.68
4937	NYSE	NVG	Mon, Apr 25, 2022	13.68	13.76	13.63	13.66
4936	NYSE	NVG	Fri, Apr 22, 2022	13.76	13.86	13.69	13.73
4935	NYSE	NVG	Thu, Apr 21, 2022	13.74	13.80	13.61	13.76
4934	NYSE	NVG	Wed, Apr 20, 2022	13.59	13.72	13.57	13.67
4933	NYSE	NVG	Tue, Apr 19, 2022	13.47	13.60	13.44	13.57
4932	NYSE	NVG	Mon, Apr 18, 2022	13.51	13.58	13.43	13.51
4931	NYSE	NVG	Thu, Apr 14, 2022	13.69	13.71	13.50	13.56
4930	NYSE	NVG	Wed, Apr 13, 2022	13.78	13.85	13.58	13.69
4929	NYSE	NVG	Tue, Apr 12, 2022	14.03	14.07	13.81	13.78
4928	NYSE	NVG	Mon, Apr 11, 2022	14.02	14.12	13.91	13.94
4927	NYSE	NVG	Fri, Apr 8, 2022	14.17	14.21	14.04	14.12
4926	NYSE	NVG	Thu, Apr 7, 2022	14.48	14.61	14.16	14.20
4925	NYSE	NVG	Wed, Apr 6, 2022	14.57	14.65	14.51	14.52
4924	NYSE	NVG	Tue, Apr 5, 2022	14.95	14.99	14.67	14.68
4923	NYSE	NVG	Mon, Apr 4, 2022	14.89	15.06	14.83	14.99
4922	NYSE	NVG	Fri, Apr 1, 2022	14.78	14.96	14.68	14.94
4921	NYSE	NVG	Thu, Mar 31, 2022	14.45	14.86	14.40	14.79
4920	NYSE	NVG	Wed, Mar 30, 2022	14.23	14.50	14.20	14.45
4919	NYSE	NVG	Tue, Mar 29, 2022	14.07	14.22	13.90	14.20
4918	NYSE	NVG	Mon, Mar 28, 2022	14.36	14.38	13.89	13.99
4917	NYSE	NVG	Fri, Mar 25, 2022	14.56	14.57	14.23	14.38
4916	NYSE	NVG	Thu, Mar 24, 2022	14.80	14.82	14.62	14.66
4915	NYSE	NVG	Wed, Mar 23, 2022	14.84	14.94	14.80	14.86
4914	NYSE	NVG	Tue, Mar 22, 2022	14.90	14.90	14.73	14.83
4913	NYSE	NVG	Mon, Mar 21, 2022	15.02	15.03	14.89	14.95
4912	NYSE	NVG	Fri, Mar 18, 2022	15.07	15.17	15.04	15.07
4911	NYSE	NVG	Thu, Mar 17, 2022	14.95	15.11	14.91	15.05
4910	NYSE	NVG	Wed, Mar 16, 2022	14.88	15.01	14.73	14.95
4909	NYSE	NVG	Tue, Mar 15, 2022	14.88	15.01	14.84	14.87
4908	NYSE	NVG	Mon, Mar 14, 2022	15.02	15.06	14.82	14.85
4907	NYSE	NVG	Fri, Mar 11, 2022	15.30	15.46	15.04	15.03
4906	NYSE	NVG	Thu, Mar 10, 2022	15.40	15.55	15.30	15.31
4905	NYSE	NVG	Wed, Mar 9, 2022	15.78	15.78	15.56	15.63
4904	NYSE	NVG	Tue, Mar 8, 2022	15.70	15.76	15.54	15.69
4903	NYSE	NVG	Mon, Mar 7, 2022	15.93	15.96	15.73	15.73
4902	NYSE	NVG	Fri, Mar 4, 2022	15.97	15.97	15.87	15.97
4901	NYSE	NVG	Thu, Mar 3, 2022	15.91	16.00	15.81	15.97
4900	NYSE	NVG	Wed, Mar 2, 2022	15.97	16.00	15.72	15.83
4899	NYSE	NVG	Tue, Mar 1, 2022	15.75	16.05	15.74	15.96
4898	NYSE	NVG	Mon, Feb 28, 2022	15.43	15.67	15.41	15.67
4897	NYSE	NVG	Fri, Feb 25, 2022	15.36	15.55	15.31	15.46
4896	NYSE	NVG	Thu, Feb 24, 2022	14.85	15.36	14.81	15.31
4895	NYSE	NVG	Wed, Feb 23, 2022	15.25	15.29	15.10	15.17
4894	NYSE	NVG	Tue, Feb 22, 2022	15.44	15.48	15.22	15.26
4893	NYSE	NVG	Fri, Feb 18, 2022	15.67	15.71	15.53	15.60
4892	NYSE	NVG	Thu, Feb 17, 2022	15.46	15.67	15.42	15.64
4891	NYSE	NVG	Wed, Feb 16, 2022	15.13	15.49	15.06	15.43
4890	NYSE	NVG	Tue, Feb 15, 2022	15.13	15.17	14.98	15.12
4889	NYSE	NVG	Mon, Feb 14, 2022	15.30	15.37	15.04	15.15
4888	NYSE	NVG	Fri, Feb 11, 2022	15.78	15.88	15.36	15.35
4887	NYSE	NVG	Thu, Feb 10, 2022	15.94	16.01	15.71	15.74
4886	NYSE	NVG	Wed, Feb 9, 2022	15.92	16.02	15.89	15.98
4885	NYSE	NVG	Tue, Feb 8, 2022	15.93	16.01	15.82	15.92
4884	NYSE	NVG	Mon, Feb 7, 2022	15.85	15.99	15.84	15.93
4883	NYSE	NVG	Fri, Feb 4, 2022	16.08	16.12	15.82	15.85
4882	NYSE	NVG	Thu, Feb 3, 2022	16.14	16.16	16.05	16.13
4881	NYSE	NVG	Wed, Feb 2, 2022	16.19	16.33	16.16	16.21
4880	NYSE	NVG	Tue, Feb 1, 2022	16.06	16.22	15.96	16.15
4879	NYSE	NVG	Mon, Jan 31, 2022	15.86	16.02	15.73	15.99
4878	NYSE	NVG	Fri, Jan 28, 2022	15.77	15.84	15.67	15.84
4877	NYSE	NVG	Thu, Jan 27, 2022	15.90	15.93	15.73	15.77
4876	NYSE	NVG	Wed, Jan 26, 2022	15.95	16.05	15.75	15.83
4875	NYSE	NVG	Tue, Jan 25, 2022	15.69	16.03	15.68	15.85
4874	NYSE	NVG	Mon, Jan 24, 2022	15.75	15.82	15.55	15.77
4873	NYSE	NVG	Fri, Jan 21, 2022	15.97	16.08	15.74	15.85
4872	NYSE	NVG	Thu, Jan 20, 2022	16.19	16.39	15.92	15.94
4871	NYSE	NVG	Wed, Jan 19, 2022	16.19	16.30	15.98	16.14
4870	NYSE	NVG	Tue, Jan 18, 2022	16.57	16.73	16.12	16.16
4869	NYSE	NVG	Fri, Jan 14, 2022	16.80	16.80	16.56	16.66
4868	NYSE	NVG	Thu, Jan 13, 2022	16.91	16.96	16.83	16.84
4867	NYSE	NVG	Wed, Jan 12, 2022	17.02	17.02	16.94	16.92
4866	NYSE	NVG	Tue, Jan 11, 2022	17.14	17.14	16.95	16.95
4865	NYSE	NVG	Mon, Jan 10, 2022	17.19	17.19	17.08	17.10
4864	NYSE	NVG	Fri, Jan 7, 2022	17.13	17.26	17.11	17.18
4863	NYSE	NVG	Thu, Jan 6, 2022	17.47	17.49	17.13	17.15
4862	NYSE	NVG	Wed, Jan 5, 2022	17.66	17.84	17.45	17.47
4861	NYSE	NVG	Tue, Jan 4, 2022	17.76	17.80	17.69	17.72
4860	NYSE	NVG	Mon, Jan 3, 2022	17.85	17.93	17.73	17.78
4859	NYSE	NVG	Fri, Dec 31, 2021	17.80	17.93	17.67	17.93
4858	NYSE	NVG	Thu, Dec 30, 2021	17.65	17.69	17.55	17.69
4857	NYSE	NVG	Wed, Dec 29, 2021	17.67	17.67	17.52	17.58
4856	NYSE	NVG	Tue, Dec 28, 2021	17.62	17.71	17.60	17.61
4855	NYSE	NVG	Mon, Dec 27, 2021	17.81	17.81	17.62	17.66
4854	NYSE	NVG	Thu, Dec 23, 2021	17.80	17.81	17.71	17.78
4853	NYSE	NVG	Wed, Dec 22, 2021	17.56	17.75	17.51	17.73
4852	NYSE	NVG	Tue, Dec 21, 2021	17.57	17.60	17.45	17.47
4851	NYSE	NVG	Mon, Dec 20, 2021	17.63	17.66	17.49	17.53
4850	NYSE	NVG	Fri, Dec 17, 2021	17.69	17.72	17.58	17.58
4849	NYSE	NVG	Thu, Dec 16, 2021	17.56	17.67	17.49	17.67
4848	NYSE	NVG	Wed, Dec 15, 2021	17.68	17.68	17.48	17.51
4847	NYSE	NVG	Tue, Dec 14, 2021	17.78	17.78	17.41	17.65
4846	NYSE	NVG	Mon, Dec 13, 2021	17.84	17.96	17.77	17.76
4845	NYSE	NVG	Fri, Dec 10, 2021	17.84	17.88	17.77	17.84
4844	NYSE	NVG	Thu, Dec 9, 2021	17.80	17.96	17.80	17.82
4843	NYSE	NVG	Wed, Dec 8, 2021	17.68	17.84	17.61	17.84
4842	NYSE	NVG	Tue, Dec 7, 2021	17.58	17.71	17.54	17.65
4841	NYSE	NVG	Mon, Dec 6, 2021	17.64	17.64	17.43	17.54
4840	NYSE	NVG	Fri, Dec 3, 2021	17.74	17.75	17.59	17.64
4839	NYSE	NVG	Thu, Dec 2, 2021	17.70	17.78	17.65	17.75
4838	NYSE	NVG	Wed, Dec 1, 2021	17.78	17.80	17.63	17.70
4837	NYSE	NVG	Tue, Nov 30, 2021	17.59	17.67	17.57	17.66
4836	NYSE	NVG	Mon, Nov 29, 2021	17.40	17.62	17.40	17.56
4835	NYSE	NVG	Fri, Nov 26, 2021	17.38	17.40	17.29	17.38
4834	NYSE	NVG	Wed, Nov 24, 2021	17.38	17.40	17.33	17.38
4833	NYSE	NVG	Tue, Nov 23, 2021	17.38	17.44	17.32	17.34
4832	NYSE	NVG	Mon, Nov 22, 2021	17.47	17.52	17.38	17.40
4831	NYSE	NVG	Fri, Nov 19, 2021	17.43	17.55	17.39	17.41
4830	NYSE	NVG	Thu, Nov 18, 2021	17.51	17.58	17.41	17.42
4829	NYSE	NVG	Wed, Nov 17, 2021	17.64	17.67	17.50	17.51
4828	NYSE	NVG	Tue, Nov 16, 2021	17.62	17.75	17.60	17.62
4827	NYSE	NVG	Mon, Nov 15, 2021	17.83	17.83	17.58	17.64
4826	NYSE	NVG	Fri, Nov 12, 2021	17.62	17.85	17.57	17.84
4825	NYSE	NVG	Thu, Nov 11, 2021	17.49	17.67	17.49	17.60
4824	NYSE	NVG	Wed, Nov 10, 2021	17.66	17.72	17.50	17.51
4823	NYSE	NVG	Tue, Nov 9, 2021	17.74	17.82	17.62	17.66
4822	NYSE	NVG	Mon, Nov 8, 2021	17.71	17.85	17.54	17.67
4821	NYSE	NVG	Fri, Nov 5, 2021	17.58	17.63	17.50	17.56
4820	NYSE	NVG	Thu, Nov 4, 2021	17.44	17.54	17.42	17.51
4819	NYSE	NVG	Wed, Nov 3, 2021	17.49	17.52	17.35	17.48
4818	NYSE	NVG	Tue, Nov 2, 2021	17.45	17.55	17.42	17.49
4817	NYSE	NVG	Mon, Nov 1, 2021	17.34	17.52	17.30	17.49
4816	NYSE	NVG	Fri, Oct 29, 2021	17.08	17.31	17.06	17.29
4815	NYSE	NVG	Thu, Oct 28, 2021	17.13	17.20	17.02	17.05
4814	NYSE	NVG	Wed, Oct 27, 2021	17.17	17.25	17.10	17.13
4813	NYSE	NVG	Tue, Oct 26, 2021	17.19	17.20	17.06	17.16
4812	NYSE	NVG	Mon, Oct 25, 2021	17.16	17.22	17.11	17.15
4811	NYSE	NVG	Fri, Oct 22, 2021	17.11	17.21	17.10	17.16
4810	NYSE	NVG	Thu, Oct 21, 2021	17.17	17.19	16.96	17.10
4809	NYSE	NVG	Wed, Oct 20, 2021	17.01	17.19	16.99	17.12
4808	NYSE	NVG	Tue, Oct 19, 2021	17.25	17.26	16.91	16.96
4807	NYSE	NVG	Mon, Oct 18, 2021	17.36	17.40	17.16	17.20
4806	NYSE	NVG	Fri, Oct 15, 2021	17.29	17.40	17.23	17.39
4805	NYSE	NVG	Thu, Oct 14, 2021	17.42	17.50	17.28	17.29
4804	NYSE	NVG	Wed, Oct 13, 2021	17.20	17.47	17.20	17.36
4803	NYSE	NVG	Tue, Oct 12, 2021	17.15	17.24	17.15	17.16
4802	NYSE	NVG	Mon, Oct 11, 2021	17.18	17.19	17.12	17.12
4801	NYSE	NVG	Fri, Oct 8, 2021	16.91	17.15	16.82	17.15
4800	NYSE	NVG	Thu, Oct 7, 2021	16.81	16.99	16.79	16.86
4799	NYSE	NVG	Wed, Oct 6, 2021	16.77	16.84	16.71	16.79
4798	NYSE	NVG	Tue, Oct 5, 2021	16.80	16.85	16.72	16.75
4797	NYSE	NVG	Mon, Oct 4, 2021	16.84	16.98	16.78	16.80
4796	NYSE	NVG	Fri, Oct 1, 2021	17.24	17.26	16.73	16.84
4795	NYSE	NVG	Thu, Sep 30, 2021	17.37	17.37	17.03	17.15
4794	NYSE	NVG	Wed, Sep 29, 2021	17.22	17.34	17.21	17.23
4793	NYSE	NVG	Tue, Sep 28, 2021	17.47	17.47	17.12	17.17
4792	NYSE	NVG	Mon, Sep 27, 2021	17.56	17.60	17.46	17.53
4791	NYSE	NVG	Fri, Sep 24, 2021	17.80	17.80	17.40	17.57
4790	NYSE	NVG	Thu, Sep 23, 2021	17.97	17.97	17.77	17.80
4789	NYSE	NVG	Wed, Sep 22, 2021	17.94	17.99	17.90	17.96
4788	NYSE	NVG	Tue, Sep 21, 2021	17.96	18.00	17.85	17.93
4787	NYSE	NVG	Mon, Sep 20, 2021	17.97	18.06	17.90	17.90
4786	NYSE	NVG	Fri, Sep 17, 2021	17.99	18.10	17.90	18.09
4785	NYSE	NVG	Thu, Sep 16, 2021	17.96	18.01	17.85	18.01
4784	NYSE	NVG	Wed, Sep 15, 2021	17.91	17.97	17.86	17.94
4783	NYSE	NVG	Tue, Sep 14, 2021	17.80	17.87	17.77	17.85
4782	NYSE	NVG	Mon, Sep 13, 2021	17.90	17.92	17.80	17.76
4781	NYSE	NVG	Fri, Sep 10, 2021	17.84	17.89	17.80	17.86
4780	NYSE	NVG	Thu, Sep 9, 2021	17.85	17.92	17.78	17.78
4779	NYSE	NVG	Wed, Sep 8, 2021	17.90	17.94	17.80	17.85
4778	NYSE	NVG	Tue, Sep 7, 2021	17.98	18.02	17.86	17.86
4777	NYSE	NVG	Fri, Sep 3, 2021	18.15	18.15	18.04	18.06
4776	NYSE	NVG	Thu, Sep 2, 2021	18.23	18.24	18.14	18.15
4775	NYSE	NVG	Wed, Sep 1, 2021	18.25	18.27	18.18	18.22
4774	NYSE	NVG	Tue, Aug 31, 2021	18.21	18.23	18.13	18.19
4773	NYSE	NVG	Mon, Aug 30, 2021	18.18	18.24	18.15	18.20
4772	NYSE	NVG	Fri, Aug 27, 2021	18.12	18.17	18.09	18.17
4771	NYSE	NVG	Thu, Aug 26, 2021	18.07	18.13	18.03	18.09
4770	NYSE	NVG	Wed, Aug 25, 2021	18.07	18.11	18.03	18.08
4769	NYSE	NVG	Tue, Aug 24, 2021	18.00	18.10	18.00	18.04
4768	NYSE	NVG	Mon, Aug 23, 2021	17.94	18.00	17.90	18.00
4767	NYSE	NVG	Fri, Aug 20, 2021	17.91	17.92	17.86	17.92
4766	NYSE	NVG	Thu, Aug 19, 2021	17.84	17.90	17.80	17.90
4765	NYSE	NVG	Wed, Aug 18, 2021	17.74	17.83	17.74	17.82
4764	NYSE	NVG	Tue, Aug 17, 2021	17.75	17.77	17.70	17.72
4763	NYSE	NVG	Mon, Aug 16, 2021	17.76	17.80	17.66	17.75
4762	NYSE	NVG	Fri, Aug 13, 2021	17.72	17.77	17.68	17.76
4761	NYSE	NVG	Thu, Aug 12, 2021	17.78	17.80	17.64	17.68
4760	NYSE	NVG	Wed, Aug 11, 2021	17.85	17.85	17.76	17.78
4759	NYSE	NVG	Tue, Aug 10, 2021	17.70	17.78	17.60	17.76
4758	NYSE	NVG	Mon, Aug 9, 2021	17.62	17.70	17.60	17.70
4757	NYSE	NVG	Fri, Aug 6, 2021	17.67	17.76	17.57	17.62
4756	NYSE	NVG	Thu, Aug 5, 2021	17.73	17.76	17.69	17.69
4755	NYSE	NVG	Wed, Aug 4, 2021	17.87	17.90	17.72	17.74
4754	NYSE	NVG	Tue, Aug 3, 2021	17.90	17.90	17.81	17.87
4753	NYSE	NVG	Mon, Aug 2, 2021	17.84	17.89	17.80	17.86
4752	NYSE	NVG	Fri, Jul 30, 2021	17.76	17.83	17.67	17.78
4751	NYSE	NVG	Thu, Jul 29, 2021	17.70	17.81	17.65	17.76
4750	NYSE	NVG	Wed, Jul 28, 2021	17.50	17.69	17.45	17.66
4749	NYSE	NVG	Tue, Jul 27, 2021	17.63	17.63	17.53	17.60
4748	NYSE	NVG	Mon, Jul 26, 2021	17.49	17.60	17.49	17.55
4747	NYSE	NVG	Fri, Jul 23, 2021	17.42	17.48	17.39	17.46
4746	NYSE	NVG	Thu, Jul 22, 2021	17.46	17.49	17.37	17.39
4745	NYSE	NVG	Wed, Jul 21, 2021	17.62	17.67	17.45	17.49
4744	NYSE	NVG	Tue, Jul 20, 2021	17.51	17.63	17.51	17.62
4743	NYSE	NVG	Mon, Jul 19, 2021	17.59	17.59	17.47	17.51
4742	NYSE	NVG	Fri, Jul 16, 2021	17.66	17.66	17.55	17.60
4741	NYSE	NVG	Thu, Jul 15, 2021	17.79	17.80	17.60	17.60
4740	NYSE	NVG	Wed, Jul 14, 2021	17.88	17.90	17.78	17.78
4739	NYSE	NVG	Tue, Jul 13, 2021	17.87	17.91	17.83	17.84
4738	NYSE	NVG	Mon, Jul 12, 2021	17.84	17.88	17.76	17.84
4737	NYSE	NVG	Fri, Jul 9, 2021	17.83	17.83	17.75	17.80
4736	NYSE	NVG	Thu, Jul 8, 2021	17.71	17.79	17.65	17.79
4735	NYSE	NVG	Wed, Jul 7, 2021	17.72	17.74	17.62	17.67
4734	NYSE	NVG	Tue, Jul 6, 2021	17.78	17.83	17.65	17.71
4733	NYSE	NVG	Fri, Jul 2, 2021	17.75	17.79	17.72	17.77
4732	NYSE	NVG	Thu, Jul 1, 2021	17.88	17.89	17.71	17.76
4731	NYSE	NVG	Wed, Jun 30, 2021	17.85	17.90	17.81	17.86
4730	NYSE	NVG	Tue, Jun 29, 2021	17.69	17.84	17.69	17.82
4729	NYSE	NVG	Mon, Jun 28, 2021	17.66	17.71	17.60	17.71
4728	NYSE	NVG	Fri, Jun 25, 2021	17.63	17.67	17.57	17.60
4727	NYSE	NVG	Thu, Jun 24, 2021	17.67	17.72	17.58	17.63
4726	NYSE	NVG	Wed, Jun 23, 2021	17.63	17.72	17.57	17.58
4725	NYSE	NVG	Tue, Jun 22, 2021	17.63	17.65	17.57	17.60
4724	NYSE	NVG	Mon, Jun 21, 2021	17.55	17.61	17.47	17.60
4723	NYSE	NVG	Fri, Jun 18, 2021	17.45	17.51	17.45	17.51
4722	NYSE	NVG	Thu, Jun 17, 2021	17.49	17.50	17.35	17.45
4721	NYSE	NVG	Wed, Jun 16, 2021	17.66	17.70	17.05	17.41
4720	NYSE	NVG	Tue, Jun 15, 2021	17.71	17.79	17.60	17.61
4719	NYSE	NVG	Mon, Jun 14, 2021	17.76	17.81	17.67	17.67
4718	NYSE	NVG	Fri, Jun 11, 2021	17.74	17.88	17.65	17.71
4717	NYSE	NVG	Thu, Jun 10, 2021	17.78	17.79	17.64	17.68
4716	NYSE	NVG	Wed, Jun 9, 2021	17.68	17.73	17.62	17.73
4715	NYSE	NVG	Tue, Jun 8, 2021	17.73	17.73	17.65	17.68
4714	NYSE	NVG	Mon, Jun 7, 2021	17.58	17.66	17.55	17.63
4713	NYSE	NVG	Fri, Jun 4, 2021	17.58	17.58	17.55	17.58
4712	NYSE	NVG	Thu, Jun 3, 2021	17.56	17.56	17.50	17.53
4711	NYSE	NVG	Wed, Jun 2, 2021	17.57	17.59	17.52	17.55
4710	NYSE	NVG	Tue, Jun 1, 2021	17.58	17.60	17.50	17.52
4709	NYSE	NVG	Fri, May 28, 2021	17.47	17.50	17.44	17.49
4708	NYSE	NVG	Thu, May 27, 2021	17.47	17.47	17.41	17.46
4707	NYSE	NVG	Wed, May 26, 2021	17.45	17.45	17.41	17.44
4706	NYSE	NVG	Tue, May 25, 2021	17.32	17.44	17.29	17.44
4705	NYSE	NVG	Mon, May 24, 2021	17.29	17.30	17.19	17.29
4704	NYSE	NVG	Fri, May 21, 2021	17.27	17.29	17.17	17.22
4703	NYSE	NVG	Thu, May 20, 2021	17.21	17.24	17.17	17.23
4702	NYSE	NVG	Wed, May 19, 2021	17.02	17.15	17.02	17.15
4701	NYSE	NVG	Tue, May 18, 2021	17.09	17.10	17.00	17.02
4700	NYSE	NVG	Mon, May 17, 2021	17.21	17.25	17.08	17.08
4699	NYSE	NVG	Fri, May 14, 2021	17.10	17.20	17.08	17.19
4698	NYSE	NVG	Thu, May 13, 2021	17.13	17.15	17.04	17.08
4697	NYSE	NVG	Wed, May 12, 2021	17.40	17.41	17.15	17.12
4696	NYSE	NVG	Tue, May 11, 2021	17.35	17.45	17.33	17.44
4695	NYSE	NVG	Mon, May 10, 2021	17.45	17.46	17.28	17.33
4694	NYSE	NVG	Fri, May 7, 2021	17.40	17.48	17.34	17.35
4693	NYSE	NVG	Thu, May 6, 2021	17.36	17.38	17.32	17.36
4692	NYSE	NVG	Wed, May 5, 2021	17.29	17.36	17.25	17.34
4691	NYSE	NVG	Tue, May 4, 2021	17.21	17.28	17.15	17.25
4690	NYSE	NVG	Mon, May 3, 2021	17.27	17.27	17.12	17.12
4689	NYSE	NVG	Fri, Apr 30, 2021	17.16	17.21	17.14	17.20
4688	NYSE	NVG	Thu, Apr 29, 2021	17.26	17.28	17.10	17.11
4687	NYSE	NVG	Wed, Apr 28, 2021	17.24	17.28	17.18	17.28
4686	NYSE	NVG	Tue, Apr 27, 2021	17.27	17.27	17.21	17.22
4685	NYSE	NVG	Mon, Apr 26, 2021	17.27	17.27	17.21	17.23
4684	NYSE	NVG	Fri, Apr 23, 2021	17.23	17.29	17.20	17.20
4683	NYSE	NVG	Thu, Apr 22, 2021	17.23	17.24	17.20	17.24
4682	NYSE	NVG	Wed, Apr 21, 2021	17.22	17.25	17.09	17.23
4681	NYSE	NVG	Tue, Apr 20, 2021	17.19	17.25	17.14	17.24
4680	NYSE	NVG	Mon, Apr 19, 2021	17.18	17.21	17.14	17.21
4679	NYSE	NVG	Fri, Apr 16, 2021	17.14	17.20	17.07	17.19
4678	NYSE	NVG	Thu, Apr 15, 2021	17.21	17.24	17.04	17.13
4677	NYSE	NVG	Wed, Apr 14, 2021	17.08	17.20	17.07	17.18
4676	NYSE	NVG	Tue, Apr 13, 2021	17.04	17.18	17.01	17.04
4675	NYSE	NVG	Mon, Apr 12, 2021	17.08	17.08	16.95	17.04
4674	NYSE	NVG	Fri, Apr 9, 2021	17.05	17.08	16.96	17.07
4673	NYSE	NVG	Thu, Apr 8, 2021	17.07	17.08	16.99	17.05
4672	NYSE	NVG	Wed, Apr 7, 2021	16.98	17.05	16.93	16.95
4671	NYSE	NVG	Tue, Apr 6, 2021	16.94	17.00	16.90	16.97
4670	NYSE	NVG	Mon, Apr 5, 2021	16.94	16.97	16.89	16.91
4669	NYSE	NVG	Thu, Apr 1, 2021	16.98	16.99	16.90	16.92
4668	NYSE	NVG	Wed, Mar 31, 2021	16.79	16.90	16.79	16.90
4667	NYSE	NVG	Tue, Mar 30, 2021	16.82	16.90	16.76	16.81
4666	NYSE	NVG	Mon, Mar 29, 2021	16.84	16.85	16.78	16.80
4665	NYSE	NVG	Fri, Mar 26, 2021	16.76	16.85	16.73	16.82
4664	NYSE	NVG	Thu, Mar 25, 2021	16.59	16.75	16.59	16.73
4663	NYSE	NVG	Wed, Mar 24, 2021	16.58	16.66	16.57	16.59
4662	NYSE	NVG	Tue, Mar 23, 2021	16.58	16.60	16.51	16.54
4661	NYSE	NVG	Mon, Mar 22, 2021	16.55	16.57	16.52	16.53
4660	NYSE	NVG	Fri, Mar 19, 2021	16.52	16.60	16.43	16.53
4659	NYSE	NVG	Thu, Mar 18, 2021	16.53	16.54	16.45	16.52
4658	NYSE	NVG	Wed, Mar 17, 2021	16.54	16.62	16.49	16.59
4657	NYSE	NVG	Tue, Mar 16, 2021	16.54	16.62	16.47	16.54
4656	NYSE	NVG	Mon, Mar 15, 2021	16.56	16.61	16.51	16.53
4655	NYSE	NVG	Fri, Mar 12, 2021	16.57	16.61	16.48	16.58
4654	NYSE	NVG	Thu, Mar 11, 2021	16.75	16.82	16.71	16.65
4653	NYSE	NVG	Wed, Mar 10, 2021	16.66	16.75	16.65	16.70
4652	NYSE	NVG	Tue, Mar 9, 2021	16.56	16.70	16.52	16.66
4651	NYSE	NVG	Mon, Mar 8, 2021	16.40	16.49	16.36	16.48
4650	NYSE	NVG	Fri, Mar 5, 2021	16.43	16.43	16.32	16.40
4649	NYSE	NVG	Thu, Mar 4, 2021	16.55	16.56	16.25	16.32
4648	NYSE	NVG	Wed, Mar 3, 2021	16.52	16.55	16.46	16.50
4647	NYSE	NVG	Tue, Mar 2, 2021	16.53	16.58	16.42	16.57
4646	NYSE	NVG	Mon, Mar 1, 2021	16.46	16.58	16.41	16.48
4645	NYSE	NVG	Fri, Feb 26, 2021	16.32	16.37	16.24	16.37
4644	NYSE	NVG	Thu, Feb 25, 2021	16.35	16.44	16.13	16.26
4643	NYSE	NVG	Wed, Feb 24, 2021	16.11	16.35	16.06	16.35
4642	NYSE	NVG	Tue, Feb 23, 2021	16.15	16.17	15.90	16.17
4641	NYSE	NVG	Mon, Feb 22, 2021	16.50	16.51	16.10	16.18
4640	NYSE	NVG	Fri, Feb 19, 2021	16.53	16.58	16.41	16.50
4639	NYSE	NVG	Thu, Feb 18, 2021	16.69	16.69	16.52	16.56
4638	NYSE	NVG	Wed, Feb 17, 2021	16.81	16.96	16.68	16.74
4637	NYSE	NVG	Tue, Feb 16, 2021	17.00	17.01	16.77	16.80
4636	NYSE	NVG	Fri, Feb 12, 2021	17.16	17.23	17.02	17.03
4635	NYSE	NVG	Thu, Feb 11, 2021	17.26	17.28	17.10	17.16
4634	NYSE	NVG	Wed, Feb 10, 2021	17.29	17.29	17.21	17.21
4633	NYSE	NVG	Tue, Feb 9, 2021	17.13	17.25	17.10	17.21
4632	NYSE	NVG	Mon, Feb 8, 2021	17.10	17.16	17.09	17.11
4631	NYSE	NVG	Fri, Feb 5, 2021	17.04	17.14	17.04	17.05
4630	NYSE	NVG	Thu, Feb 4, 2021	16.98	17.04	16.98	17.01
4629	NYSE	NVG	Wed, Feb 3, 2021	17.03	17.04	16.96	16.99
4628	NYSE	NVG	Tue, Feb 2, 2021	16.99	17.05	16.98	17.04
4627	NYSE	NVG	Mon, Feb 1, 2021	16.88	17.01	16.88	16.99
4626	NYSE	NVG	Fri, Jan 29, 2021	16.98	16.99	16.85	16.85
4625	NYSE	NVG	Thu, Jan 28, 2021	16.92	17.01	16.88	16.98
4624	NYSE	NVG	Wed, Jan 27, 2021	16.88	16.93	16.86	16.86
4623	NYSE	NVG	Tue, Jan 26, 2021	16.83	16.90	16.79	16.86
4622	NYSE	NVG	Mon, Jan 25, 2021	16.73	16.81	16.72	16.78
4621	NYSE	NVG	Fri, Jan 22, 2021	16.76	16.86	16.71	16.73
4620	NYSE	NVG	Thu, Jan 21, 2021	16.74	16.79	16.72	16.75
4619	NYSE	NVG	Wed, Jan 20, 2021	16.67	16.80	16.66	16.71
4618	NYSE	NVG	Tue, Jan 19, 2021	16.65	16.70	16.63	16.67
4617	NYSE	NVG	Fri, Jan 15, 2021	16.64	16.73	16.53	16.71
4616	NYSE	NVG	Thu, Jan 14, 2021	16.66	16.74	16.62	16.66
4615	NYSE	NVG	Wed, Jan 13, 2021	16.65	16.77	16.62	16.66
4614	NYSE	NVG	Tue, Jan 12, 2021	16.44	16.61	16.43	16.60
4613	NYSE	NVG	Mon, Jan 11, 2021	16.60	16.60	16.45	16.46
4612	NYSE	NVG	Fri, Jan 8, 2021	16.60	16.63	16.52	16.60
4611	NYSE	NVG	Thu, Jan 7, 2021	16.65	16.67	16.54	16.55
4610	NYSE	NVG	Wed, Jan 6, 2021	16.70	16.72	16.62	16.68
4609	NYSE	NVG	Tue, Jan 5, 2021	16.61	16.75	16.59	16.74
4608	NYSE	NVG	Mon, Jan 4, 2021	16.69	16.79	16.56	16.61
4607	NYSE	NVG	Thu, Dec 31, 2020	16.74	16.85	16.70	16.78
4606	NYSE	NVG	Wed, Dec 30, 2020	16.55	16.66	16.54	16.65
4605	NYSE	NVG	Tue, Dec 29, 2020	16.43	16.57	16.40	16.57
4604	NYSE	NVG	Mon, Dec 28, 2020	16.41	16.44	16.27	16.41
4603	NYSE	NVG	Thu, Dec 24, 2020	16.45	16.49	16.40	16.43
4602	NYSE	NVG	Wed, Dec 23, 2020	16.44	16.50	16.42	16.43
4601	NYSE	NVG	Tue, Dec 22, 2020	16.49	16.49	16.32	16.36
4600	NYSE	NVG	Mon, Dec 21, 2020	16.40	16.45	16.35	16.43
4599	NYSE	NVG	Fri, Dec 18, 2020	16.28	16.40	16.25	16.40
4598	NYSE	NVG	Thu, Dec 17, 2020	16.50	16.51	16.20	16.23
4597	NYSE	NVG	Wed, Dec 16, 2020	16.62	16.62	16.47	16.48
4596	NYSE	NVG	Tue, Dec 15, 2020	16.54	16.67	16.53	16.57
4595	NYSE	NVG	Mon, Dec 14, 2020	16.73	16.77	16.59	16.60
4594	NYSE	NVG	Fri, Dec 11, 2020	16.77	16.88	16.75	16.69
4593	NYSE	NVG	Thu, Dec 10, 2020	16.87	16.89	16.77	16.79
4592	NYSE	NVG	Wed, Dec 9, 2020	16.82	16.90	16.81	16.87
4591	NYSE	NVG	Tue, Dec 8, 2020	16.71	16.85	16.71	16.78
4590	NYSE	NVG	Mon, Dec 7, 2020	16.71	16.74	16.67	16.71
4589	NYSE	NVG	Fri, Dec 4, 2020	16.60	16.67	16.59	16.65
4588	NYSE	NVG	Thu, Dec 3, 2020	16.47	16.56	16.46	16.56
4587	NYSE	NVG	Wed, Dec 2, 2020	16.45	16.48	16.42	16.47
4586	NYSE	NVG	Tue, Dec 1, 2020	16.41	16.48	16.37	16.41
4585	NYSE	NVG	Mon, Nov 30, 2020	16.37	16.41	16.34	16.41
4584	NYSE	NVG	Fri, Nov 27, 2020	16.25	16.39	16.24	16.37
4583	NYSE	NVG	Wed, Nov 25, 2020	16.19	16.23	16.17	16.23
4582	NYSE	NVG	Tue, Nov 24, 2020	16.16	16.22	16.15	16.19
4581	NYSE	NVG	Mon, Nov 23, 2020	16.04	16.20	16.04	16.12
4580	NYSE	NVG	Fri, Nov 20, 2020	16.05	16.06	15.98	16.00
4579	NYSE	NVG	Thu, Nov 19, 2020	16.14	16.22	16.00	16.05
4578	NYSE	NVG	Wed, Nov 18, 2020	16.15	16.18	16.11	16.13
4577	NYSE	NVG	Tue, Nov 17, 2020	16.09	16.15	16.07	16.15
4576	NYSE	NVG	Mon, Nov 16, 2020	16.01	16.12	16.01	16.07
4575	NYSE	NVG	Fri, Nov 13, 2020	15.96	16.06	15.92	15.97
4574	NYSE	NVG	Thu, Nov 12, 2020	16.01	16.06	15.92	15.96
4573	NYSE	NVG	Wed, Nov 11, 2020	16.07	16.08	16.02	15.98
4572	NYSE	NVG	Tue, Nov 10, 2020	16.14	16.16	16.01	16.02
4571	NYSE	NVG	Mon, Nov 9, 2020	16.27	16.29	16.06	16.16
4570	NYSE	NVG	Fri, Nov 6, 2020	16.09	16.28	16.08	16.24
4569	NYSE	NVG	Thu, Nov 5, 2020	16.00	16.08	15.95	16.07
4568	NYSE	NVG	Wed, Nov 4, 2020	15.84	15.96	15.75	15.93
4567	NYSE	NVG	Tue, Nov 3, 2020	15.68	15.75	15.62	15.75
4566	NYSE	NVG	Mon, Nov 2, 2020	15.68	15.70	15.63	15.68
4565	NYSE	NVG	Fri, Oct 30, 2020	15.55	15.62	15.48	15.62
4564	NYSE	NVG	Thu, Oct 29, 2020	15.47	15.56	15.44	15.55
4563	NYSE	NVG	Wed, Oct 28, 2020	15.44	15.46	15.39	15.44
4562	NYSE	NVG	Tue, Oct 27, 2020	15.42	15.50	15.42	15.47
4561	NYSE	NVG	Mon, Oct 26, 2020	15.58	15.61	15.42	15.44
4560	NYSE	NVG	Fri, Oct 23, 2020	15.68	15.68	15.56	15.56
4559	NYSE	NVG	Thu, Oct 22, 2020	15.69	15.69	15.62	15.63
4558	NYSE	NVG	Wed, Oct 21, 2020	15.70	15.71	15.62	15.66
4557	NYSE	NVG	Tue, Oct 20, 2020	15.66	15.76	15.63	15.72
4556	NYSE	NVG	Mon, Oct 19, 2020	15.63	15.73	15.61	15.66
4555	NYSE	NVG	Fri, Oct 16, 2020	15.72	15.74	15.58	15.60
4554	NYSE	NVG	Thu, Oct 15, 2020	15.68	15.73	15.67	15.70
4553	NYSE	NVG	Wed, Oct 14, 2020	15.78	15.78	15.69	15.72
4552	NYSE	NVG	Tue, Oct 13, 2020	15.79	15.82	15.76	15.74
4551	NYSE	NVG	Mon, Oct 12, 2020	15.82	15.82	15.73	15.79
4550	NYSE	NVG	Fri, Oct 9, 2020	15.66	15.80	15.63	15.77
4549	NYSE	NVG	Thu, Oct 8, 2020	15.78	15.83	15.60	15.63
4548	NYSE	NVG	Wed, Oct 7, 2020	15.80	15.81	15.71	15.74
4547	NYSE	NVG	Tue, Oct 6, 2020	15.72	15.82	15.69	15.75
4546	NYSE	NVG	Mon, Oct 5, 2020	15.76	15.79	15.61	15.69
4545	NYSE	NVG	Fri, Oct 2, 2020	15.67	15.77	15.65	15.76
4544	NYSE	NVG	Thu, Oct 1, 2020	15.71	15.73	15.65	15.69
4543	NYSE	NVG	Wed, Sep 30, 2020	15.65	15.66	15.57	15.66
4542	NYSE	NVG	Tue, Sep 29, 2020	15.54	15.63	15.54	15.63
4541	NYSE	NVG	Mon, Sep 28, 2020	15.48	15.55	15.48	15.52
4540	NYSE	NVG	Fri, Sep 25, 2020	15.39	15.48	15.38	15.46
4539	NYSE	NVG	Thu, Sep 24, 2020	15.38	15.42	15.32	15.42
4538	NYSE	NVG	Wed, Sep 23, 2020	15.43	15.48	15.37	15.37
4537	NYSE	NVG	Tue, Sep 22, 2020	15.47	15.48	15.40	15.42
4536	NYSE	NVG	Mon, Sep 21, 2020	15.49	15.50	15.46	15.48
4535	NYSE	NVG	Fri, Sep 18, 2020	15.53	15.56	15.49	15.51
4534	NYSE	NVG	Thu, Sep 17, 2020	15.50	15.55	15.48	15.52
4533	NYSE	NVG	Wed, Sep 16, 2020	15.63	15.66	15.59	15.62
4532	NYSE	NVG	Tue, Sep 15, 2020	15.65	15.66	15.58	15.62
4531	NYSE	NVG	Mon, Sep 14, 2020	15.70	15.73	15.60	15.60
4530	NYSE	NVG	Fri, Sep 11, 2020	15.70	15.74	15.60	15.67
4529	NYSE	NVG	Thu, Sep 10, 2020	15.61	15.72	15.61	15.65
4528	NYSE	NVG	Wed, Sep 9, 2020	15.51	15.64	15.51	15.57
4527	NYSE	NVG	Tue, Sep 8, 2020	15.55	15.59	15.42	15.48
4526	NYSE	NVG	Fri, Sep 4, 2020	15.71	15.72	15.41	15.55
4525	NYSE	NVG	Thu, Sep 3, 2020	15.78	15.82	15.66	15.68
4524	NYSE	NVG	Wed, Sep 2, 2020	15.85	15.85	15.73	15.81
4523	NYSE	NVG	Tue, Sep 1, 2020	15.66	15.77	15.62	15.77
4522	NYSE	NVG	Mon, Aug 31, 2020	15.62	15.70	15.58	15.63
4521	NYSE	NVG	Fri, Aug 28, 2020	15.40	15.61	15.40	15.61
4520	NYSE	NVG	Thu, Aug 27, 2020	15.43	15.50	15.32	15.38
4519	NYSE	NVG	Wed, Aug 26, 2020	15.51	15.52	15.32	15.38
4518	NYSE	NVG	Tue, Aug 25, 2020	15.59	15.59	15.49	15.52
4517	NYSE	NVG	Mon, Aug 24, 2020	15.66	15.72	15.53	15.61
4516	NYSE	NVG	Fri, Aug 21, 2020	15.75	15.77	15.59	15.63
4515	NYSE	NVG	Thu, Aug 20, 2020	15.75	15.80	15.69	15.75
4514	NYSE	NVG	Wed, Aug 19, 2020	15.89	15.91	15.81	15.83
4513	NYSE	NVG	Tue, Aug 18, 2020	15.99	15.99	15.85	15.88
4512	NYSE	NVG	Mon, Aug 17, 2020	15.99	16.06	15.93	15.94
4511	NYSE	NVG	Fri, Aug 14, 2020	16.02	16.05	16.00	16.03
4510	NYSE	NVG	Thu, Aug 13, 2020	16.08	16.12	15.93	16.02
4509	NYSE	NVG	Wed, Aug 12, 2020	16.13	16.19	16.03	16.12
4508	NYSE	NVG	Tue, Aug 11, 2020	16.28	16.31	16.15	16.17
4507	NYSE	NVG	Mon, Aug 10, 2020	16.19	16.28	16.17	16.25
4506	NYSE	NVG	Fri, Aug 7, 2020	16.10	16.17	16.08	16.15
4505	NYSE	NVG	Thu, Aug 6, 2020	16.07	16.13	16.04	16.08
4504	NYSE	NVG	Wed, Aug 5, 2020	16.05	16.12	15.99	16.01
4503	NYSE	NVG	Tue, Aug 4, 2020	16.03	16.11	15.96	16.02
4502	NYSE	NVG	Mon, Aug 3, 2020	15.95	16.03	15.93	16.03
4501	NYSE	NVG	Fri, Jul 31, 2020	15.90	15.94	15.82	15.89
4500	NYSE	NVG	Thu, Jul 30, 2020	15.80	15.90	15.75	15.89
4499	NYSE	NVG	Wed, Jul 29, 2020	15.71	15.80	15.70	15.78
4498	NYSE	NVG	Tue, Jul 28, 2020	15.67	15.70	15.65	15.67
4497	NYSE	NVG	Mon, Jul 27, 2020	15.67	15.68	15.63	15.67
4496	NYSE	NVG	Fri, Jul 24, 2020	15.61	15.67	15.60	15.67
4495	NYSE	NVG	Thu, Jul 23, 2020	15.71	15.71	15.60	15.62
4494	NYSE	NVG	Wed, Jul 22, 2020	15.76	15.78	15.66	15.69
4493	NYSE	NVG	Tue, Jul 21, 2020	15.66	15.77	15.64	15.73
4492	NYSE	NVG	Mon, Jul 20, 2020	15.67	15.69	15.60	15.63
4491	NYSE	NVG	Fri, Jul 17, 2020	15.60	15.68	15.58	15.67
4490	NYSE	NVG	Thu, Jul 16, 2020	15.55	15.60	15.55	15.60
4489	NYSE	NVG	Wed, Jul 15, 2020	15.54	15.61	15.51	15.55
4488	NYSE	NVG	Tue, Jul 14, 2020	15.64	15.64	15.49	15.54
4487	NYSE	NVG	Mon, Jul 13, 2020	15.69	15.71	15.61	15.59
4486	NYSE	NVG	Fri, Jul 10, 2020	15.55	15.64	15.54	15.64
4485	NYSE	NVG	Thu, Jul 9, 2020	15.53	15.61	15.52	15.56
4484	NYSE	NVG	Wed, Jul 8, 2020	15.44	15.54	15.41	15.53
4483	NYSE	NVG	Tue, Jul 7, 2020	15.21	15.42	15.21	15.40
4482	NYSE	NVG	Mon, Jul 6, 2020	15.40	15.42	15.21	15.21
4481	NYSE	NVG	Thu, Jul 2, 2020	15.39	15.45	15.29	15.31
4480	NYSE	NVG	Wed, Jul 1, 2020	15.38	15.38	15.28	15.38
4479	NYSE	NVG	Tue, Jun 30, 2020	15.24	15.28	15.16	15.28
4478	NYSE	NVG	Mon, Jun 29, 2020	15.09	15.25	15.07	15.18
4477	NYSE	NVG	Fri, Jun 26, 2020	15.26	15.34	15.02	15.07
4476	NYSE	NVG	Thu, Jun 25, 2020	15.36	15.36	15.23	15.25
4475	NYSE	NVG	Wed, Jun 24, 2020	15.45	15.45	15.23	15.30
4474	NYSE	NVG	Tue, Jun 23, 2020	15.40	15.52	15.38	15.41
4473	NYSE	NVG	Mon, Jun 22, 2020	15.36	15.40	15.30	15.40
4472	NYSE	NVG	Fri, Jun 19, 2020	15.42	15.42	15.30	15.32
4471	NYSE	NVG	Thu, Jun 18, 2020	15.36	15.42	15.36	15.38
4470	NYSE	NVG	Wed, Jun 17, 2020	15.44	15.48	15.40	15.43
4469	NYSE	NVG	Tue, Jun 16, 2020	15.51	15.53	15.43	15.45
4468	NYSE	NVG	Mon, Jun 15, 2020	15.34	15.48	15.24	15.48
4467	NYSE	NVG	Fri, Jun 12, 2020	15.30	15.38	15.26	15.38
4466	NYSE	NVG	Thu, Jun 11, 2020	15.44	15.48	15.28	15.26
4465	NYSE	NVG	Wed, Jun 10, 2020	15.47	15.53	15.43	15.50
4464	NYSE	NVG	Tue, Jun 9, 2020	15.46	15.49	15.41	15.42
4463	NYSE	NVG	Mon, Jun 8, 2020	15.40	15.47	15.37	15.42
4462	NYSE	NVG	Fri, Jun 5, 2020	15.25	15.36	15.23	15.36
4461	NYSE	NVG	Thu, Jun 4, 2020	15.11	15.19	15.05	15.17
4460	NYSE	NVG	Wed, Jun 3, 2020	15.18	15.23	15.07	15.13
4459	NYSE	NVG	Tue, Jun 2, 2020	15.11	15.22	15.11	15.11
4458	NYSE	NVG	Mon, Jun 1, 2020	15.04	15.12	15.03	15.10
4457	NYSE	NVG	Fri, May 29, 2020	14.86	14.98	14.85	14.96
4456	NYSE	NVG	Thu, May 28, 2020	14.78	14.87	14.75	14.85
4455	NYSE	NVG	Wed, May 27, 2020	14.77	14.78	14.68	14.77
4454	NYSE	NVG	Tue, May 26, 2020	14.61	14.76	14.56	14.75
4453	NYSE	NVG	Fri, May 22, 2020	14.52	14.56	14.49	14.54
4452	NYSE	NVG	Thu, May 21, 2020	14.40	14.51	14.40	14.51
4451	NYSE	NVG	Wed, May 20, 2020	14.37	14.43	14.28	14.39
4450	NYSE	NVG	Tue, May 19, 2020	14.22	14.29	14.19	14.26
4449	NYSE	NVG	Mon, May 18, 2020	14.35	14.37	14.20	14.21
4448	NYSE	NVG	Fri, May 15, 2020	14.19	14.28	14.19	14.24
4447	NYSE	NVG	Thu, May 14, 2020	14.25	14.32	14.15	14.19
4446	NYSE	NVG	Wed, May 13, 2020	14.62	14.62	14.42	14.40
4445	NYSE	NVG	Tue, May 12, 2020	14.53	14.67	14.47	14.57
4444	NYSE	NVG	Mon, May 11, 2020	14.43	14.51	14.41	14.46
4443	NYSE	NVG	Fri, May 8, 2020	14.49	14.49	14.37	14.43
4442	NYSE	NVG	Thu, May 7, 2020	14.38	14.42	14.31	14.40
4441	NYSE	NVG	Wed, May 6, 2020	14.27	14.33	14.18	14.28
4440	NYSE	NVG	Tue, May 5, 2020	14.32	14.41	14.23	14.30
4439	NYSE	NVG	Mon, May 4, 2020	14.03	14.23	13.99	14.20
4438	NYSE	NVG	Fri, May 1, 2020	13.93	14.12	13.88	14.06
4437	NYSE	NVG	Thu, Apr 30, 2020	13.85	13.95	13.79	13.94
4436	NYSE	NVG	Wed, Apr 29, 2020	13.81	14.03	13.79	13.88
4435	NYSE	NVG	Tue, Apr 28, 2020	13.66	13.79	13.59	13.72
4434	NYSE	NVG	Mon, Apr 27, 2020	13.92	13.97	13.56	13.65
4433	NYSE	NVG	Fri, Apr 24, 2020	14.23	14.28	13.91	14.04
4432	NYSE	NVG	Thu, Apr 23, 2020	14.48	14.53	14.27	14.30
4431	NYSE	NVG	Wed, Apr 22, 2020	14.55	14.60	14.43	14.51
4430	NYSE	NVG	Tue, Apr 21, 2020	14.45	14.55	14.38	14.52
4429	NYSE	NVG	Mon, Apr 20, 2020	14.70	14.73	14.50	14.54
4428	NYSE	NVG	Fri, Apr 17, 2020	14.75	14.77	14.59	14.70
4427	NYSE	NVG	Thu, Apr 16, 2020	14.84	14.90	14.50	14.56
4426	NYSE	NVG	Wed, Apr 15, 2020	14.65	14.77	14.59	14.74
4425	NYSE	NVG	Tue, Apr 14, 2020	14.67	14.78	14.43	14.72
4424	NYSE	NVG	Mon, Apr 13, 2020	14.72	14.84	14.35	14.50
4423	NYSE	NVG	Thu, Apr 9, 2020	14.37	14.89	14.37	14.89
4422	NYSE	NVG	Wed, Apr 8, 2020	13.94	14.32	13.86	14.26
4421	NYSE	NVG	Tue, Apr 7, 2020	13.99	14.07	13.83	13.83
4420	NYSE	NVG	Mon, Apr 6, 2020	13.76	13.92	13.71	13.74
4419	NYSE	NVG	Fri, Apr 3, 2020	13.86	13.88	13.42	13.54
4418	NYSE	NVG	Thu, Apr 2, 2020	14.00	14.03	13.67	13.86
4417	NYSE	NVG	Wed, Apr 1, 2020	14.55	14.60	13.78	14.08
4416	NYSE	NVG	Tue, Mar 31, 2020	14.60	14.78	14.55	14.68
4415	NYSE	NVG	Mon, Mar 30, 2020	14.32	14.75	14.27	14.67
4414	NYSE	NVG	Fri, Mar 27, 2020	14.40	14.64	14.16	14.40
4413	NYSE	NVG	Thu, Mar 26, 2020	13.94	14.86	13.90	14.51
4412	NYSE	NVG	Wed, Mar 25, 2020	12.86	14.03	12.83	13.77
4411	NYSE	NVG	Tue, Mar 24, 2020	12.63	13.00	12.59	12.74
4410	NYSE	NVG	Mon, Mar 23, 2020	12.75	12.83	11.85	12.53
4409	NYSE	NVG	Fri, Mar 20, 2020	12.62	13.84	12.37	12.89
4408	NYSE	NVG	Thu, Mar 19, 2020	12.26	12.95	11.55	12.67
4407	NYSE	NVG	Wed, Mar 18, 2020	13.50	13.75	11.69	12.61
4406	NYSE	NVG	Tue, Mar 17, 2020	13.78	14.19	13.50	14.07
4405	NYSE	NVG	Mon, Mar 16, 2020	13.95	14.20	13.31	13.75
4404	NYSE	NVG	Fri, Mar 13, 2020	14.56	14.87	14.47	14.73
4403	NYSE	NVG	Thu, Mar 12, 2020	14.94	15.02	14.11	14.30
4402	NYSE	NVG	Wed, Mar 11, 2020	16.22	16.36	15.55	15.58
4401	NYSE	NVG	Tue, Mar 10, 2020	16.60	16.65	16.23	16.40
4400	NYSE	NVG	Mon, Mar 9, 2020	16.50	16.72	16.31	16.50
4399	NYSE	NVG	Fri, Mar 6, 2020	17.02	17.04	16.93	16.98
4398	NYSE	NVG	Thu, Mar 5, 2020	17.00	17.15	17.00	17.08
4397	NYSE	NVG	Wed, Mar 4, 2020	17.15	17.15	17.04	17.10
4396	NYSE	NVG	Tue, Mar 3, 2020	16.98	17.14	16.95	17.14
4395	NYSE	NVG	Mon, Mar 2, 2020	16.73	16.93	16.70	16.93
4394	NYSE	NVG	Fri, Feb 28, 2020	16.92	16.93	16.51	16.66
4393	NYSE	NVG	Thu, Feb 27, 2020	17.09	17.12	16.95	16.97
4392	NYSE	NVG	Wed, Feb 26, 2020	17.05	17.12	17.01	17.12
4391	NYSE	NVG	Tue, Feb 25, 2020	17.04	17.10	17.02	17.03
4390	NYSE	NVG	Mon, Feb 24, 2020	17.09	17.10	17.01	17.02
4389	NYSE	NVG	Fri, Feb 21, 2020	17.00	17.06	16.99	17.04
4388	NYSE	NVG	Thu, Feb 20, 2020	16.98	17.02	16.97	16.97
4387	NYSE	NVG	Wed, Feb 19, 2020	16.85	16.97	16.83	16.97
4386	NYSE	NVG	Tue, Feb 18, 2020	16.80	16.85	16.80	16.85
4385	NYSE	NVG	Fri, Feb 14, 2020	16.85	16.89	16.80	16.80
4384	NYSE	NVG	Thu, Feb 13, 2020	16.90	16.98	16.89	16.89
4383	NYSE	NVG	Wed, Feb 12, 2020	16.99	17.02	16.97	16.92
4382	NYSE	NVG	Tue, Feb 11, 2020	16.98	17.04	16.98	16.99
4381	NYSE	NVG	Mon, Feb 10, 2020	16.99	16.99	16.94	16.96
4380	NYSE	NVG	Fri, Feb 7, 2020	16.88	16.94	16.88	16.93
4379	NYSE	NVG	Thu, Feb 6, 2020	16.90	16.91	16.85	16.85
4378	NYSE	NVG	Wed, Feb 5, 2020	16.91	16.93	16.87	16.89
4377	NYSE	NVG	Tue, Feb 4, 2020	16.93	16.95	16.89	16.92
4376	NYSE	NVG	Mon, Feb 3, 2020	17.00	17.00	16.93	16.93
4375	NYSE	NVG	Fri, Jan 31, 2020	17.00	17.03	16.96	16.97
4374	NYSE	NVG	Thu, Jan 30, 2020	17.01	17.01	16.97	16.97
4373	NYSE	NVG	Wed, Jan 29, 2020	16.96	16.99	16.93	16.96
4372	NYSE	NVG	Tue, Jan 28, 2020	16.88	16.95	16.87	16.91
4371	NYSE	NVG	Mon, Jan 27, 2020	16.93	16.94	16.87	16.88
4370	NYSE	NVG	Fri, Jan 24, 2020	16.85	16.90	16.82	16.87
4369	NYSE	NVG	Thu, Jan 23, 2020	16.79	16.84	16.73	16.84
4368	NYSE	NVG	Wed, Jan 22, 2020	16.80	16.80	16.72	16.74
4367	NYSE	NVG	Tue, Jan 21, 2020	16.83	16.83	16.74	16.76
4366	NYSE	NVG	Fri, Jan 17, 2020	16.74	16.80	16.69	16.77
4365	NYSE	NVG	Thu, Jan 16, 2020	16.71	16.77	16.67	16.77
4364	NYSE	NVG	Wed, Jan 15, 2020	16.72	16.73	16.66	16.69
4363	NYSE	NVG	Tue, Jan 14, 2020	16.67	16.72	16.66	16.71
4362	NYSE	NVG	Mon, Jan 13, 2020	16.77	16.79	16.73	16.67
4361	NYSE	NVG	Fri, Jan 10, 2020	16.74	16.75	16.70	16.71
4360	NYSE	NVG	Thu, Jan 9, 2020	16.75	16.76	16.71	16.74
4359	NYSE	NVG	Wed, Jan 8, 2020	16.77	16.81	16.73	16.73
4358	NYSE	NVG	Tue, Jan 7, 2020	16.78	16.80	16.75	16.75
4357	NYSE	NVG	Mon, Jan 6, 2020	16.75	16.80	16.73	16.80
4356	NYSE	NVG	Fri, Jan 3, 2020	16.74	16.82	16.70	16.74
4355	NYSE	NVG	Thu, Jan 2, 2020	16.71	16.74	16.63	16.68
4354	NYSE	NVG	Tue, Dec 31, 2019	16.67	16.71	16.64	16.67
4353	NYSE	NVG	Mon, Dec 30, 2019	16.64	16.65	16.60	16.65
4352	NYSE	NVG	Fri, Dec 27, 2019	16.58	16.65	16.58	16.64
4351	NYSE	NVG	Thu, Dec 26, 2019	16.61	16.66	16.57	16.58
4350	NYSE	NVG	Tue, Dec 24, 2019	16.56	16.62	16.56	16.62
4349	NYSE	NVG	Mon, Dec 23, 2019	16.48	16.56	16.47	16.56
4348	NYSE	NVG	Fri, Dec 20, 2019	16.47	16.48	16.41	16.46
4347	NYSE	NVG	Thu, Dec 19, 2019	16.46	16.49	16.44	16.46
4346	NYSE	NVG	Wed, Dec 18, 2019	16.47	16.50	16.44	16.44
4345	NYSE	NVG	Tue, Dec 17, 2019	16.36	16.46	16.36	16.44
4344	NYSE	NVG	Mon, Dec 16, 2019	16.37	16.39	16.33	16.36
4343	NYSE	NVG	Fri, Dec 13, 2019	16.45	16.47	16.37	16.40
4342	NYSE	NVG	Thu, Dec 12, 2019	16.50	16.52	16.38	16.40
4341	NYSE	NVG	Wed, Dec 11, 2019	16.49	16.58	16.48	16.48
4340	NYSE	NVG	Tue, Dec 10, 2019	16.39	16.50	16.37	16.48
4339	NYSE	NVG	Mon, Dec 9, 2019	16.34	16.43	16.33	16.41
4338	NYSE	NVG	Fri, Dec 6, 2019	16.20	16.34	16.20	16.34
4337	NYSE	NVG	Thu, Dec 5, 2019	16.18	16.25	16.18	16.23
4336	NYSE	NVG	Wed, Dec 4, 2019	16.18	16.28	16.17	16.22
4335	NYSE	NVG	Tue, Dec 3, 2019	16.13	16.26	16.10	16.21
4334	NYSE	NVG	Mon, Dec 2, 2019	16.13	16.15	16.08	16.12
4333	NYSE	NVG	Fri, Nov 29, 2019	16.12	16.16	16.12	16.15
4332	NYSE	NVG	Wed, Nov 27, 2019	16.16	16.20	16.12	16.13
4331	NYSE	NVG	Tue, Nov 26, 2019	16.19	16.19	16.13	16.15
4330	NYSE	NVG	Mon, Nov 25, 2019	16.16	16.21	16.12	16.16
4329	NYSE	NVG	Fri, Nov 22, 2019	16.15	16.20	16.12	16.17
4328	NYSE	NVG	Thu, Nov 21, 2019	16.22	16.22	16.13	16.15
4327	NYSE	NVG	Wed, Nov 20, 2019	16.30	16.30	16.20	16.20
4326	NYSE	NVG	Tue, Nov 19, 2019	16.18	16.27	16.18	16.26
4325	NYSE	NVG	Mon, Nov 18, 2019	15.98	16.17	15.89	16.17
4324	NYSE	NVG	Fri, Nov 15, 2019	16.08	16.10	15.98	15.99
4323	NYSE	NVG	Thu, Nov 14, 2019	16.14	16.20	16.09	16.09
4322	NYSE	NVG	Wed, Nov 13, 2019	16.24	16.27	16.17	16.16
4321	NYSE	NVG	Tue, Nov 12, 2019	16.31	16.34	16.22	16.24
4320	NYSE	NVG	Mon, Nov 11, 2019	16.40	16.50	16.35	16.37
4319	NYSE	NVG	Fri, Nov 8, 2019	16.34	16.44	16.34	16.43
4318	NYSE	NVG	Thu, Nov 7, 2019	16.49	16.50	16.33	16.35
4317	NYSE	NVG	Wed, Nov 6, 2019	16.54	16.54	16.49	16.54
4316	NYSE	NVG	Tue, Nov 5, 2019	16.45	16.51	16.44	16.51
4315	NYSE	NVG	Mon, Nov 4, 2019	16.47	16.52	16.43	16.52
4314	NYSE	NVG	Fri, Nov 1, 2019	16.48	16.52	16.45	16.50
4313	NYSE	NVG	Thu, Oct 31, 2019	16.45	16.50	16.43	16.45
4312	NYSE	NVG	Wed, Oct 30, 2019	16.25	16.44	16.20	16.42
4311	NYSE	NVG	Tue, Oct 29, 2019	16.18	16.26	16.13	16.25
4310	NYSE	NVG	Mon, Oct 28, 2019	16.37	16.37	16.16	16.19
4309	NYSE	NVG	Fri, Oct 25, 2019	16.51	16.52	16.40	16.41
4308	NYSE	NVG	Thu, Oct 24, 2019	16.52	16.56	16.50	16.52
4307	NYSE	NVG	Wed, Oct 23, 2019	16.57	16.60	16.50	16.50
4306	NYSE	NVG	Tue, Oct 22, 2019	16.50	16.56	16.50	16.56
4305	NYSE	NVG	Mon, Oct 21, 2019	16.54	16.55	16.45	16.51
4304	NYSE	NVG	Fri, Oct 18, 2019	16.58	16.60	16.51	16.60
4303	NYSE	NVG	Thu, Oct 17, 2019	16.67	16.67	16.50	16.56
4302	NYSE	NVG	Wed, Oct 16, 2019	16.66	16.71	16.63	16.66
4301	NYSE	NVG	Tue, Oct 15, 2019	16.68	16.68	16.60	16.67
4300	NYSE	NVG	Mon, Oct 14, 2019	16.61	16.71	16.57	16.68
4299	NYSE	NVG	Fri, Oct 11, 2019	16.71	16.72	16.57	16.60
4298	NYSE	NVG	Thu, Oct 10, 2019	16.85	16.86	16.80	16.75
4297	NYSE	NVG	Wed, Oct 9, 2019	16.85	16.90	16.82	16.90
4296	NYSE	NVG	Tue, Oct 8, 2019	16.78	16.91	16.78	16.86
4295	NYSE	NVG	Mon, Oct 7, 2019	16.93	16.94	16.74	16.75
4294	NYSE	NVG	Fri, Oct 4, 2019	16.88	17.02	16.88	16.94
4293	NYSE	NVG	Thu, Oct 3, 2019	16.85	16.93	16.82	16.89
4292	NYSE	NVG	Wed, Oct 2, 2019	16.77	16.87	16.74	16.84
4291	NYSE	NVG	Tue, Oct 1, 2019	16.70	16.79	16.64	16.74
4290	NYSE	NVG	Mon, Sep 30, 2019	16.73	16.75	16.68	16.73
4289	NYSE	NVG	Fri, Sep 27, 2019	16.58	16.74	16.58	16.74
4288	NYSE	NVG	Thu, Sep 26, 2019	16.58	16.66	16.55	16.59
4287	NYSE	NVG	Wed, Sep 25, 2019	16.64	16.68	16.53	16.58
4286	NYSE	NVG	Tue, Sep 24, 2019	16.59	16.65	16.57	16.65
4285	NYSE	NVG	Mon, Sep 23, 2019	16.41	16.57	16.41	16.57
4284	NYSE	NVG	Fri, Sep 20, 2019	16.37	16.42	16.33	16.39
4283	NYSE	NVG	Thu, Sep 19, 2019	16.33	16.34	16.26	16.32
4282	NYSE	NVG	Wed, Sep 18, 2019	16.00	16.20	16.00	16.20
4281	NYSE	NVG	Tue, Sep 17, 2019	15.96	15.99	15.91	15.96
4280	NYSE	NVG	Mon, Sep 16, 2019	16.00	16.02	15.87	15.87
4279	NYSE	NVG	Fri, Sep 13, 2019	16.31	16.31	15.85	15.92
4278	NYSE	NVG	Thu, Sep 12, 2019	16.53	16.54	16.10	16.37
4277	NYSE	NVG	Wed, Sep 11, 2019	16.68	16.70	16.53	16.55
4276	NYSE	NVG	Tue, Sep 10, 2019	16.70	16.74	16.70	16.72
4275	NYSE	NVG	Mon, Sep 9, 2019	16.74	16.75	16.66	16.75
4274	NYSE	NVG	Fri, Sep 6, 2019	16.84	16.85	16.77	16.77
4273	NYSE	NVG	Thu, Sep 5, 2019	16.93	16.93	16.75	16.79
4272	NYSE	NVG	Wed, Sep 4, 2019	16.95	16.97	16.90	16.91
4271	NYSE	NVG	Tue, Sep 3, 2019	16.84	16.94	16.82	16.94
4270	NYSE	NVG	Fri, Aug 30, 2019	16.78	16.82	16.76	16.79
4269	NYSE	NVG	Thu, Aug 29, 2019	16.79	16.81	16.76	16.77
4268	NYSE	NVG	Wed, Aug 28, 2019	16.79	16.79	16.75	16.78
4267	NYSE	NVG	Tue, Aug 27, 2019	16.73	16.79	16.72	16.77
4266	NYSE	NVG	Mon, Aug 26, 2019	16.73	16.77	16.70	16.73
4265	NYSE	NVG	Fri, Aug 23, 2019	16.77	16.79	16.73	16.73
4264	NYSE	NVG	Thu, Aug 22, 2019	16.79	16.81	16.74	16.75
4263	NYSE	NVG	Wed, Aug 21, 2019	16.80	16.83	16.74	16.79
4262	NYSE	NVG	Tue, Aug 20, 2019	16.69	16.82	16.69	16.81
4261	NYSE	NVG	Mon, Aug 19, 2019	16.59	16.70	16.56	16.70
4260	NYSE	NVG	Fri, Aug 16, 2019	16.61	16.65	16.60	16.60
4259	NYSE	NVG	Thu, Aug 15, 2019	16.62	16.63	16.59	16.61
4258	NYSE	NVG	Wed, Aug 14, 2019	16.62	16.66	16.54	16.59
4257	NYSE	NVG	Tue, Aug 13, 2019	16.62	16.67	16.55	16.55
4256	NYSE	NVG	Mon, Aug 12, 2019	16.56	16.65	16.55	16.58
4255	NYSE	NVG	Fri, Aug 9, 2019	16.54	16.59	16.50	16.54
4254	NYSE	NVG	Thu, Aug 8, 2019	16.51	16.54	16.44	16.51
4253	NYSE	NVG	Wed, Aug 7, 2019	16.51	16.55	16.47	16.51
4252	NYSE	NVG	Tue, Aug 6, 2019	16.43	16.48	16.42	16.47
4251	NYSE	NVG	Mon, Aug 5, 2019	16.45	16.49	16.42	16.45
4250	NYSE	NVG	Fri, Aug 2, 2019	16.37	16.49	16.36	16.42
4249	NYSE	NVG	Thu, Aug 1, 2019	16.25	16.40	16.24	16.38
4248	NYSE	NVG	Wed, Jul 31, 2019	16.20	16.25	16.19	16.25
4247	NYSE	NVG	Tue, Jul 30, 2019	16.13	16.22	16.13	16.18
4246	NYSE	NVG	Mon, Jul 29, 2019	16.14	16.21	16.11	16.13
4245	NYSE	NVG	Fri, Jul 26, 2019	16.12	16.15	16.10	16.15
4244	NYSE	NVG	Thu, Jul 25, 2019	16.15	16.15	16.11	16.12
4243	NYSE	NVG	Wed, Jul 24, 2019	16.18	16.18	16.13	16.13
4242	NYSE	NVG	Tue, Jul 23, 2019	16.18	16.20	16.14	16.15
4241	NYSE	NVG	Mon, Jul 22, 2019	16.17	16.19	16.14	16.18
4240	NYSE	NVG	Fri, Jul 19, 2019	16.15	16.16	16.03	16.16
4239	NYSE	NVG	Thu, Jul 18, 2019	16.16	16.17	16.07	16.08
4238	NYSE	NVG	Wed, Jul 17, 2019	16.13	16.19	16.11	16.12
4237	NYSE	NVG	Tue, Jul 16, 2019	16.17	16.17	16.08	16.11
4236	NYSE	NVG	Mon, Jul 15, 2019	16.18	16.24	16.17	16.19
4235	NYSE	NVG	Fri, Jul 12, 2019	16.12	16.19	16.08	16.18
4234	NYSE	NVG	Thu, Jul 11, 2019	16.12	16.18	16.10	16.11
4233	NYSE	NVG	Wed, Jul 10, 2019	16.07	16.09	16.02	16.08
4232	NYSE	NVG	Tue, Jul 9, 2019	16.03	16.09	15.99	16.01
4231	NYSE	NVG	Mon, Jul 8, 2019	16.01	16.04	15.98	16.03
4230	NYSE	NVG	Fri, Jul 5, 2019	15.99	16.02	15.91	16.01
4229	NYSE	NVG	Wed, Jul 3, 2019	15.97	16.04	15.97	16.02
4228	NYSE	NVG	Tue, Jul 2, 2019	15.88	16.00	15.88	15.96
4227	NYSE	NVG	Mon, Jul 1, 2019	15.85	15.95	15.85	15.88
4226	NYSE	NVG	Fri, Jun 28, 2019	15.85	15.88	15.79	15.87
4225	NYSE	NVG	Thu, Jun 27, 2019	15.78	15.83	15.77	15.83
4224	NYSE	NVG	Wed, Jun 26, 2019	15.66	15.75	15.66	15.74
4223	NYSE	NVG	Tue, Jun 25, 2019	15.72	15.75	15.66	15.66
4222	NYSE	NVG	Mon, Jun 24, 2019	15.62	15.72	15.60	15.72
4221	NYSE	NVG	Fri, Jun 21, 2019	15.67	15.69	15.54	15.55
4220	NYSE	NVG	Thu, Jun 20, 2019	15.65	15.70	15.64	15.66
4219	NYSE	NVG	Wed, Jun 19, 2019	15.71	15.73	15.62	15.64
4218	NYSE	NVG	Tue, Jun 18, 2019	15.77	15.80	15.73	15.73
4217	NYSE	NVG	Mon, Jun 17, 2019	15.81	15.82	15.76	15.76
4216	NYSE	NVG	Fri, Jun 14, 2019	15.82	15.84	15.75	15.81
4215	NYSE	NVG	Thu, Jun 13, 2019	15.82	15.83	15.75	15.82
4214	NYSE	NVG	Wed, Jun 12, 2019	15.90	15.93	15.87	15.84
4213	NYSE	NVG	Tue, Jun 11, 2019	15.85	15.87	15.83	15.86
4212	NYSE	NVG	Mon, Jun 10, 2019	15.82	15.83	15.80	15.83
4211	NYSE	NVG	Fri, Jun 7, 2019	15.72	15.80	15.70	15.80
4210	NYSE	NVG	Thu, Jun 6, 2019	15.67	15.69	15.61	15.69
4209	NYSE	NVG	Wed, Jun 5, 2019	15.75	15.75	15.55	15.62
4208	NYSE	NVG	Tue, Jun 4, 2019	15.76	15.82	15.68	15.69
4207	NYSE	NVG	Mon, Jun 3, 2019	15.73	15.83	15.73	15.78
4206	NYSE	NVG	Fri, May 31, 2019	15.68	15.72	15.66	15.72
4205	NYSE	NVG	Thu, May 30, 2019	15.67	15.73	15.67	15.70
4204	NYSE	NVG	Wed, May 29, 2019	15.72	15.77	15.65	15.66
4203	NYSE	NVG	Tue, May 28, 2019	15.65	15.70	15.63	15.69
4202	NYSE	NVG	Fri, May 24, 2019	15.64	15.64	15.58	15.63
4201	NYSE	NVG	Thu, May 23, 2019	15.65	15.65	15.57	15.60
4200	NYSE	NVG	Wed, May 22, 2019	15.65	15.67	15.62	15.63
4199	NYSE	NVG	Tue, May 21, 2019	15.62	15.65	15.59	15.64
4198	NYSE	NVG	Mon, May 20, 2019	15.62	15.65	15.53	15.58
4197	NYSE	NVG	Fri, May 17, 2019	15.61	15.64	15.55	15.59
4196	NYSE	NVG	Thu, May 16, 2019	15.56	15.61	15.56	15.57
4195	NYSE	NVG	Wed, May 15, 2019	15.59	15.59	15.51	15.56
4194	NYSE	NVG	Tue, May 14, 2019	15.60	15.63	15.50	15.52
4193	NYSE	NVG	Mon, May 13, 2019	15.57	15.71	15.57	15.62
4192	NYSE	NVG	Fri, May 10, 2019	15.50	15.57	15.46	15.57
4191	NYSE	NVG	Thu, May 9, 2019	15.50	15.58	15.47	15.48
4190	NYSE	NVG	Wed, May 8, 2019	15.53	15.53	15.47	15.49
4189	NYSE	NVG	Tue, May 7, 2019	15.49	15.56	15.48	15.49
4188	NYSE	NVG	Mon, May 6, 2019	15.50	15.53	15.45	15.49
4187	NYSE	NVG	Fri, May 3, 2019	15.51	15.52	15.45	15.45
4186	NYSE	NVG	Thu, May 2, 2019	15.40	15.49	15.39	15.48
4185	NYSE	NVG	Wed, May 1, 2019	15.39	15.46	15.35	15.44
4184	NYSE	NVG	Tue, Apr 30, 2019	15.45	15.48	15.29	15.35
4183	NYSE	NVG	Mon, Apr 29, 2019	15.44	15.50	15.40	15.40
4182	NYSE	NVG	Fri, Apr 26, 2019	15.46	15.50	15.40	15.42
4181	NYSE	NVG	Thu, Apr 25, 2019	15.38	15.44	15.37	15.43
4180	NYSE	NVG	Wed, Apr 24, 2019	15.30	15.38	15.30	15.38
4179	NYSE	NVG	Tue, Apr 23, 2019	15.17	15.27	15.16	15.26
4178	NYSE	NVG	Mon, Apr 22, 2019	15.21	15.22	15.11	15.21
4177	NYSE	NVG	Thu, Apr 18, 2019	15.30	15.31	15.20	15.20
4176	NYSE	NVG	Wed, Apr 17, 2019	15.17	15.30	15.17	15.28
4175	NYSE	NVG	Tue, Apr 16, 2019	15.28	15.29	15.15	15.17
4174	NYSE	NVG	Mon, Apr 15, 2019	15.25	15.32	15.25	15.28
4173	NYSE	NVG	Fri, Apr 12, 2019	15.32	15.32	15.22	15.27
4172	NYSE	NVG	Thu, Apr 11, 2019	15.34	15.41	15.33	15.33
4171	NYSE	NVG	Wed, Apr 10, 2019	15.39	15.44	15.30	15.32
4170	NYSE	NVG	Tue, Apr 9, 2019	15.28	15.40	15.28	15.39
4169	NYSE	NVG	Mon, Apr 8, 2019	15.23	15.27	15.22	15.25
4168	NYSE	NVG	Fri, Apr 5, 2019	15.20	15.23	15.15	15.21
4167	NYSE	NVG	Thu, Apr 4, 2019	15.17	15.22	15.17	15.20
4166	NYSE	NVG	Wed, Apr 3, 2019	15.17	15.21	15.14	15.18
4165	NYSE	NVG	Tue, Apr 2, 2019	15.13	15.26	15.13	15.15
4164	NYSE	NVG	Mon, Apr 1, 2019	15.12	15.14	15.10	15.14
4163	NYSE	NVG	Fri, Mar 29, 2019	15.09	15.13	15.04	15.11
4162	NYSE	NVG	Thu, Mar 28, 2019	15.12	15.14	15.08	15.13
4161	NYSE	NVG	Wed, Mar 27, 2019	15.10	15.12	15.07	15.12
4160	NYSE	NVG	Tue, Mar 26, 2019	15.00	15.08	14.98	15.07
4159	NYSE	NVG	Mon, Mar 25, 2019	14.98	15.01	14.92	14.99
4158	NYSE	NVG	Fri, Mar 22, 2019	14.88	14.99	14.88	14.96
4157	NYSE	NVG	Thu, Mar 21, 2019	14.80	14.89	14.79	14.85
4156	NYSE	NVG	Wed, Mar 20, 2019	14.79	14.86	14.73	14.77
4155	NYSE	NVG	Tue, Mar 19, 2019	14.71	14.77	14.71	14.76
4154	NYSE	NVG	Mon, Mar 18, 2019	14.77	14.78	14.71	14.71
4153	NYSE	NVG	Fri, Mar 15, 2019	14.83	14.86	14.72	14.72
4152	NYSE	NVG	Thu, Mar 14, 2019	14.76	14.81	14.76	14.80
4151	NYSE	NVG	Wed, Mar 13, 2019	14.79	14.85	14.78	14.78
4150	NYSE	NVG	Tue, Mar 12, 2019	14.75	14.81	14.71	14.78
4149	NYSE	NVG	Mon, Mar 11, 2019	14.71	14.76	14.70	14.72
4148	NYSE	NVG	Fri, Mar 8, 2019	14.74	14.75	14.67	14.69
4147	NYSE	NVG	Thu, Mar 7, 2019	14.72	14.77	14.70	14.74
4146	NYSE	NVG	Wed, Mar 6, 2019	14.70	14.71	14.62	14.68
4145	NYSE	NVG	Tue, Mar 5, 2019	14.66	14.67	14.63	14.66
4144	NYSE	NVG	Mon, Mar 4, 2019	14.64	14.66	14.59	14.66
4143	NYSE	NVG	Fri, Mar 1, 2019	14.57	14.61	14.55	14.59
4142	NYSE	NVG	Thu, Feb 28, 2019	14.56	14.59	14.55	14.57
4141	NYSE	NVG	Wed, Feb 27, 2019	14.53	14.56	14.52	14.56
4140	NYSE	NVG	Tue, Feb 26, 2019	14.52	14.61	14.52	14.55
4139	NYSE	NVG	Mon, Feb 25, 2019	14.55	14.57	14.44	14.52
4138	NYSE	NVG	Fri, Feb 22, 2019	14.48	14.54	14.46	14.51
4137	NYSE	NVG	Thu, Feb 21, 2019	14.48	14.49	14.44	14.48
4136	NYSE	NVG	Wed, Feb 20, 2019	14.48	14.53	14.47	14.49
4135	NYSE	NVG	Tue, Feb 19, 2019	14.45	14.49	14.41	14.47
4134	NYSE	NVG	Fri, Feb 15, 2019	14.42	14.44	14.40	14.42
4133	NYSE	NVG	Thu, Feb 14, 2019	14.41	14.44	14.35	14.42
4132	NYSE	NVG	Wed, Feb 13, 2019	14.38	14.48	14.37	14.40
4131	NYSE	NVG	Tue, Feb 12, 2019	14.40	14.42	14.35	14.38
4130	NYSE	NVG	Mon, Feb 11, 2019	14.47	14.49	14.35	14.39
4129	NYSE	NVG	Fri, Feb 8, 2019	14.31	14.45	14.31	14.44
4128	NYSE	NVG	Thu, Feb 7, 2019	14.33	14.33	14.25	14.31
4127	NYSE	NVG	Wed, Feb 6, 2019	14.38	14.51	14.28	14.28
4126	NYSE	NVG	Tue, Feb 5, 2019	14.46	14.49	14.33	14.34
4125	NYSE	NVG	Mon, Feb 4, 2019	14.56	14.59	14.43	14.44
4124	NYSE	NVG	Fri, Feb 1, 2019	14.50	14.61	14.49	14.54
4123	NYSE	NVG	Thu, Jan 31, 2019	14.47	14.49	14.46	14.49
4122	NYSE	NVG	Wed, Jan 30, 2019	14.45	14.47	14.42	14.45
4121	NYSE	NVG	Tue, Jan 29, 2019	14.42	14.48	14.42	14.46
4120	NYSE	NVG	Mon, Jan 28, 2019	14.45	14.47	14.41	14.43
4119	NYSE	NVG	Fri, Jan 25, 2019	14.46	14.48	14.43	14.47
4118	NYSE	NVG	Thu, Jan 24, 2019	14.45	14.47	14.41	14.46
4117	NYSE	NVG	Wed, Jan 23, 2019	14.35	14.40	14.32	14.40
4116	NYSE	NVG	Tue, Jan 22, 2019	14.29	14.36	14.29	14.30
4115	NYSE	NVG	Fri, Jan 18, 2019	14.32	14.36	14.29	14.30
4114	NYSE	NVG	Thu, Jan 17, 2019	14.30	14.33	14.28	14.31
4113	NYSE	NVG	Wed, Jan 16, 2019	14.28	14.33	14.27	14.29
4112	NYSE	NVG	Tue, Jan 15, 2019	14.32	14.34	14.27	14.29
4111	NYSE	NVG	Mon, Jan 14, 2019	14.35	14.36	14.27	14.29
4110	NYSE	NVG	Fri, Jan 11, 2019	14.37	14.41	14.35	14.40
4109	NYSE	NVG	Thu, Jan 10, 2019	14.33	14.37	14.33	14.34
4108	NYSE	NVG	Wed, Jan 9, 2019	14.35	14.35	14.27	14.32
4107	NYSE	NVG	Tue, Jan 8, 2019	14.32	14.36	14.27	14.30
4106	NYSE	NVG	Mon, Jan 7, 2019	14.23	14.32	14.23	14.30
4105	NYSE	NVG	Fri, Jan 4, 2019	14.18	14.24	14.04	14.22
4104	NYSE	NVG	Thu, Jan 3, 2019	14.19	14.27	14.19	14.19
4103	NYSE	NVG	Wed, Jan 2, 2019	13.97	14.19	13.91	14.19
4102	NYSE	NVG	Mon, Dec 31, 2018	13.80	14.05	13.62	13.98
4101	NYSE	NVG	Fri, Dec 28, 2018	13.70	13.75	13.64	13.73
4100	NYSE	NVG	Thu, Dec 27, 2018	13.60	13.77	13.58	13.72
4099	NYSE	NVG	Wed, Dec 26, 2018	13.61	13.69	13.45	13.61
4098	NYSE	NVG	Mon, Dec 24, 2018	13.58	13.68	13.48	13.64
4097	NYSE	NVG	Fri, Dec 21, 2018	13.46	13.81	13.45	13.69
4096	NYSE	NVG	Thu, Dec 20, 2018	13.69	13.74	13.35	13.46
4095	NYSE	NVG	Wed, Dec 19, 2018	13.62	13.74	13.62	13.66
4094	NYSE	NVG	Tue, Dec 18, 2018	13.56	13.64	13.53	13.62
4093	NYSE	NVG	Mon, Dec 17, 2018	13.69	13.73	13.54	13.55
4092	NYSE	NVG	Fri, Dec 14, 2018	13.86	13.91	13.69	13.77
4091	NYSE	NVG	Thu, Dec 13, 2018	13.91	13.96	13.84	13.89
4090	NYSE	NVG	Wed, Dec 12, 2018	14.03	14.07	13.95	13.92
4089	NYSE	NVG	Tue, Dec 11, 2018	14.16	14.25	14.02	14.02
4088	NYSE	NVG	Mon, Dec 10, 2018	14.09	14.23	14.09	14.21
4087	NYSE	NVG	Fri, Dec 7, 2018	14.01	14.06	13.95	14.06
4086	NYSE	NVG	Thu, Dec 6, 2018	13.95	14.00	13.94	13.97
4085	NYSE	NVG	Tue, Dec 4, 2018	13.80	13.95	13.79	13.95
4084	NYSE	NVG	Mon, Dec 3, 2018	13.79	13.79	13.69	13.78
4083	NYSE	NVG	Fri, Nov 30, 2018	13.71	13.73	13.67	13.69
4082	NYSE	NVG	Thu, Nov 29, 2018	13.61	13.73	13.61	13.68
4081	NYSE	NVG	Wed, Nov 28, 2018	13.52	13.62	13.51	13.57
4080	NYSE	NVG	Tue, Nov 27, 2018	13.51	13.55	13.47	13.54
4079	NYSE	NVG	Mon, Nov 26, 2018	13.43	13.54	13.43	13.48
4078	NYSE	NVG	Fri, Nov 23, 2018	13.46	13.49	13.41	13.42
4077	NYSE	NVG	Wed, Nov 21, 2018	13.54	13.55	13.44	13.44
4076	NYSE	NVG	Tue, Nov 20, 2018	13.65	13.68	13.56	13.57
4075	NYSE	NVG	Mon, Nov 19, 2018	13.67	13.75	13.65	13.65
4074	NYSE	NVG	Fri, Nov 16, 2018	13.72	13.76	13.70	13.71
4073	NYSE	NVG	Thu, Nov 15, 2018	13.74	13.80	13.68	13.75
4072	NYSE	NVG	Wed, Nov 14, 2018	13.85	13.86	13.79	13.81
4071	NYSE	NVG	Tue, Nov 13, 2018	13.81	13.89	13.81	13.82
4070	NYSE	NVG	Mon, Nov 12, 2018	13.82	13.85	13.75	13.81
4069	NYSE	NVG	Fri, Nov 9, 2018	13.70	13.79	13.70	13.77
4068	NYSE	NVG	Thu, Nov 8, 2018	13.55	13.75	13.52	13.75
4067	NYSE	NVG	Wed, Nov 7, 2018	13.40	13.57	13.37	13.55
4066	NYSE	NVG	Tue, Nov 6, 2018	13.40	13.43	13.37	13.39
4065	NYSE	NVG	Mon, Nov 5, 2018	13.38	13.49	13.33	13.41
4064	NYSE	NVG	Fri, Nov 2, 2018	13.37	13.40	13.30	13.33
4063	NYSE	NVG	Thu, Nov 1, 2018	13.41	13.44	13.35	13.39
4062	NYSE	NVG	Wed, Oct 31, 2018	13.40	13.41	13.36	13.40
4061	NYSE	NVG	Tue, Oct 30, 2018	13.40	13.40	13.36	13.40
4060	NYSE	NVG	Mon, Oct 29, 2018	13.43	13.45	13.38	13.40
4059	NYSE	NVG	Fri, Oct 26, 2018	13.43	13.48	13.40	13.42
4058	NYSE	NVG	Thu, Oct 25, 2018	13.42	13.45	13.37	13.45
4057	NYSE	NVG	Wed, Oct 24, 2018	13.48	13.52	13.42	13.42
4056	NYSE	NVG	Tue, Oct 23, 2018	13.47	13.51	13.43	13.45
4055	NYSE	NVG	Mon, Oct 22, 2018	13.47	13.49	13.40	13.43
4054	NYSE	NVG	Fri, Oct 19, 2018	13.52	13.53	13.41	13.44
4053	NYSE	NVG	Thu, Oct 18, 2018	13.60	13.61	13.51	13.51
4052	NYSE	NVG	Wed, Oct 17, 2018	13.72	13.76	13.59	13.60
4051	NYSE	NVG	Tue, Oct 16, 2018	13.67	13.76	13.67	13.71
4050	NYSE	NVG	Mon, Oct 15, 2018	13.77	13.80	13.64	13.67
4049	NYSE	NVG	Fri, Oct 12, 2018	13.72	13.77	13.72	13.75
4048	NYSE	NVG	Thu, Oct 11, 2018	13.84	13.84	13.67	13.69
4047	NYSE	NVG	Wed, Oct 10, 2018	13.84	13.88	13.75	13.84
4046	NYSE	NVG	Tue, Oct 9, 2018	14.00	14.02	13.84	13.86
4045	NYSE	NVG	Mon, Oct 8, 2018	14.17	14.17	13.86	13.95
4044	NYSE	NVG	Fri, Oct 5, 2018	14.31	14.31	14.10	14.11
4043	NYSE	NVG	Thu, Oct 4, 2018	14.51	14.53	14.34	14.36
4042	NYSE	NVG	Wed, Oct 3, 2018	14.65	14.66	14.55	14.56
4041	NYSE	NVG	Tue, Oct 2, 2018	14.67	14.71	14.65	14.66
4040	NYSE	NVG	Mon, Oct 1, 2018	14.57	14.64	14.55	14.64
4039	NYSE	NVG	Fri, Sep 28, 2018	14.56	14.59	14.54	14.56
4038	NYSE	NVG	Thu, Sep 27, 2018	14.53	14.61	14.53	14.54
4037	NYSE	NVG	Wed, Sep 26, 2018	14.55	14.57	14.51	14.53
4036	NYSE	NVG	Tue, Sep 25, 2018	14.58	14.60	14.55	14.56
4035	NYSE	NVG	Mon, Sep 24, 2018	14.58	14.66	14.58	14.60
4034	NYSE	NVG	Fri, Sep 21, 2018	14.66	14.68	14.60	14.61
4033	NYSE	NVG	Thu, Sep 20, 2018	14.63	14.66	14.58	14.66
4032	NYSE	NVG	Wed, Sep 19, 2018	14.70	14.73	14.62	14.63
4031	NYSE	NVG	Tue, Sep 18, 2018	14.64	14.70	14.64	14.68
4030	NYSE	NVG	Mon, Sep 17, 2018	14.78	14.80	14.66	14.66
4029	NYSE	NVG	Fri, Sep 14, 2018	14.90	14.92	14.80	14.80
4028	NYSE	NVG	Thu, Sep 13, 2018	14.99	14.99	14.93	14.94
4027	NYSE	NVG	Wed, Sep 12, 2018	15.02	15.04	14.98	14.97
4026	NYSE	NVG	Tue, Sep 11, 2018	14.98	15.04	14.98	15.01
4025	NYSE	NVG	Mon, Sep 10, 2018	14.92	15.06	14.92	15.01
4024	NYSE	NVG	Fri, Sep 7, 2018	14.94	14.98	14.90	14.95
4023	NYSE	NVG	Thu, Sep 6, 2018	14.95	14.98	14.93	14.96
4022	NYSE	NVG	Wed, Sep 5, 2018	14.98	14.99	14.94	14.98
4021	NYSE	NVG	Tue, Sep 4, 2018	14.97	15.00	14.95	14.96
4020	NYSE	NVG	Fri, Aug 31, 2018	15.00	15.02	14.96	14.97
4019	NYSE	NVG	Thu, Aug 30, 2018	14.95	15.00	14.94	15.00
4018	NYSE	NVG	Wed, Aug 29, 2018	14.95	14.98	14.94	14.95
4017	NYSE	NVG	Tue, Aug 28, 2018	14.94	14.96	14.94	14.96
4016	NYSE	NVG	Mon, Aug 27, 2018	14.96	14.97	14.93	14.95
4015	NYSE	NVG	Fri, Aug 24, 2018	14.96	14.96	14.90	14.94
4014	NYSE	NVG	Thu, Aug 23, 2018	14.90	14.97	14.85	14.97
4013	NYSE	NVG	Wed, Aug 22, 2018	14.92	14.94	14.88	14.90
4012	NYSE	NVG	Tue, Aug 21, 2018	14.90	14.92	14.89	14.89
4011	NYSE	NVG	Mon, Aug 20, 2018	14.91	14.94	14.91	14.92
4010	NYSE	NVG	Fri, Aug 17, 2018	14.87	14.90	14.87	14.89
4009	NYSE	NVG	Thu, Aug 16, 2018	14.88	14.95	14.86	14.87
4008	NYSE	NVG	Wed, Aug 15, 2018	14.93	14.93	14.84	14.92
4007	NYSE	NVG	Tue, Aug 14, 2018	14.86	14.90	14.85	14.90
4006	NYSE	NVG	Mon, Aug 13, 2018	14.83	14.93	14.82	14.86
4005	NYSE	NVG	Fri, Aug 10, 2018	14.77	14.82	14.77	14.81
4004	NYSE	NVG	Thu, Aug 9, 2018	14.87	14.87	14.76	14.81
4003	NYSE	NVG	Wed, Aug 8, 2018	14.85	14.87	14.84	14.85
4002	NYSE	NVG	Tue, Aug 7, 2018	14.82	14.85	14.82	14.85
4001	NYSE	NVG	Mon, Aug 6, 2018	14.83	14.86	14.76	14.78
4000	NYSE	NVG	Fri, Aug 3, 2018	14.84	14.91	14.80	14.81
3999	NYSE	NVG	Thu, Aug 2, 2018	14.78	14.87	14.78	14.87
3998	NYSE	NVG	Wed, Aug 1, 2018	14.71	14.78	14.69	14.78
3997	NYSE	NVG	Tue, Jul 31, 2018	14.70	14.74	14.69	14.71
3996	NYSE	NVG	Mon, Jul 30, 2018	14.68	14.71	14.64	14.71
3995	NYSE	NVG	Fri, Jul 27, 2018	14.66	14.70	14.65	14.67
3994	NYSE	NVG	Thu, Jul 26, 2018	14.68	14.68	14.64	14.66
3993	NYSE	NVG	Wed, Jul 25, 2018	14.67	14.71	14.65	14.65
3992	NYSE	NVG	Tue, Jul 24, 2018	14.70	14.73	14.67	14.67
3991	NYSE	NVG	Mon, Jul 23, 2018	14.65	14.70	14.64	14.70
3990	NYSE	NVG	Fri, Jul 20, 2018	14.64	14.66	14.62	14.65
3989	NYSE	NVG	Thu, Jul 19, 2018	14.68	14.70	14.63	14.64
3988	NYSE	NVG	Wed, Jul 18, 2018	14.66	14.67	14.62	14.63
3987	NYSE	NVG	Tue, Jul 17, 2018	14.66	14.69	14.64	14.65
3986	NYSE	NVG	Mon, Jul 16, 2018	14.66	14.67	14.62	14.63
3985	NYSE	NVG	Fri, Jul 13, 2018	14.68	14.68	14.62	14.63
3984	NYSE	NVG	Thu, Jul 12, 2018	14.68	14.69	14.62	14.67
3983	NYSE	NVG	Wed, Jul 11, 2018	14.74	14.74	14.67	14.67
3982	NYSE	NVG	Tue, Jul 10, 2018	14.66	14.78	14.66	14.71
3981	NYSE	NVG	Mon, Jul 9, 2018	14.68	14.70	14.65	14.67
3980	NYSE	NVG	Fri, Jul 6, 2018	14.65	14.69	14.65	14.67
3979	NYSE	NVG	Thu, Jul 5, 2018	14.69	14.70	14.65	14.66
3978	NYSE	NVG	Tue, Jul 3, 2018	14.67	14.73	14.66	14.70
3977	NYSE	NVG	Mon, Jul 2, 2018	14.66	14.70	14.65	14.65
3976	NYSE	NVG	Fri, Jun 29, 2018	14.59	14.63	14.58	14.59
3975	NYSE	NVG	Thu, Jun 28, 2018	14.56	14.63	14.53	14.53
3974	NYSE	NVG	Wed, Jun 27, 2018	14.59	14.59	14.52	14.52
3973	NYSE	NVG	Tue, Jun 26, 2018	14.54	14.58	14.53	14.56
3972	NYSE	NVG	Mon, Jun 25, 2018	14.58	14.60	14.54	14.54
3971	NYSE	NVG	Fri, Jun 22, 2018	14.64	14.64	14.57	14.58
3970	NYSE	NVG	Thu, Jun 21, 2018	14.61	14.67	14.58	14.58
3969	NYSE	NVG	Wed, Jun 20, 2018	14.60	14.70	14.59	14.61
3968	NYSE	NVG	Tue, Jun 19, 2018	14.63	14.71	14.63	14.69
3967	NYSE	NVG	Mon, Jun 18, 2018	14.71	14.74	14.61	14.61
3966	NYSE	NVG	Fri, Jun 15, 2018	14.77	14.79	14.68	14.71
3965	NYSE	NVG	Thu, Jun 14, 2018	14.84	14.84	14.76	14.76
3964	NYSE	NVG	Wed, Jun 13, 2018	14.78	14.92	14.77	14.85
3963	NYSE	NVG	Tue, Jun 12, 2018	14.85	14.87	14.76	14.76
3962	NYSE	NVG	Mon, Jun 11, 2018	14.88	14.88	14.84	14.88
3961	NYSE	NVG	Fri, Jun 8, 2018	14.88	14.93	14.88	14.89
3960	NYSE	NVG	Thu, Jun 7, 2018	14.99	14.99	14.88	14.88
3959	NYSE	NVG	Wed, Jun 6, 2018	15.00	15.01	14.95	14.99
3958	NYSE	NVG	Tue, Jun 5, 2018	15.05	15.05	14.99	15.00
3957	NYSE	NVG	Mon, Jun 4, 2018	14.99	15.02	14.95	15.00
3956	NYSE	NVG	Fri, Jun 1, 2018	15.11	15.11	15.02	15.03
3955	NYSE	NVG	Thu, May 31, 2018	15.05	15.10	15.03	15.10
3954	NYSE	NVG	Wed, May 30, 2018	15.00	15.05	14.97	15.04
3953	NYSE	NVG	Tue, May 29, 2018	15.03	15.03	14.99	14.99
3952	NYSE	NVG	Fri, May 25, 2018	14.94	14.97	14.90	14.91
3951	NYSE	NVG	Thu, May 24, 2018	14.84	14.93	14.83	14.92
3950	NYSE	NVG	Wed, May 23, 2018	14.83	14.83	14.81	14.83
3949	NYSE	NVG	Tue, May 22, 2018	14.79	14.80	14.77	14.79
3948	NYSE	NVG	Mon, May 21, 2018	14.79	14.79	14.73	14.78
3947	NYSE	NVG	Fri, May 18, 2018	14.75	14.76	14.70	14.76
3946	NYSE	NVG	Thu, May 17, 2018	14.75	14.77	14.69	14.72
3945	NYSE	NVG	Wed, May 16, 2018	14.83	14.83	14.74	14.75
3944	NYSE	NVG	Tue, May 15, 2018	14.90	14.92	14.79	14.79
3943	NYSE	NVG	Mon, May 14, 2018	15.00	15.04	14.96	14.97
3942	NYSE	NVG	Fri, May 11, 2018	15.07	15.08	15.00	15.08
3941	NYSE	NVG	Thu, May 10, 2018	15.00	15.03	14.99	15.01
3940	NYSE	NVG	Wed, May 9, 2018	14.99	15.05	14.94	14.96
3939	NYSE	NVG	Tue, May 8, 2018	15.00	15.02	14.96	15.01
3938	NYSE	NVG	Mon, May 7, 2018	14.95	15.00	14.90	14.99
3937	NYSE	NVG	Fri, May 4, 2018	14.83	14.90	14.81	14.89
3936	NYSE	NVG	Thu, May 3, 2018	14.81	14.84	14.79	14.79
3935	NYSE	NVG	Wed, May 2, 2018	14.75	14.82	14.75	14.81
3934	NYSE	NVG	Tue, May 1, 2018	14.77	14.78	14.74	14.75
3933	NYSE	NVG	Mon, Apr 30, 2018	14.71	14.75	14.67	14.75
3932	NYSE	NVG	Fri, Apr 27, 2018	14.62	14.71	14.60	14.68
3931	NYSE	NVG	Thu, Apr 26, 2018	14.56	14.59	14.55	14.58
3930	NYSE	NVG	Wed, Apr 25, 2018	14.56	14.56	14.51	14.54
3929	NYSE	NVG	Tue, Apr 24, 2018	14.47	14.56	14.46	14.56
3928	NYSE	NVG	Mon, Apr 23, 2018	14.45	14.49	14.43	14.46
3927	NYSE	NVG	Fri, Apr 20, 2018	14.45	14.49	14.44	14.49
3926	NYSE	NVG	Thu, Apr 19, 2018	14.45	14.47	14.42	14.45
3925	NYSE	NVG	Wed, Apr 18, 2018	14.51	14.55	14.45	14.47
3924	NYSE	NVG	Tue, Apr 17, 2018	14.51	14.53	14.50	14.51
3923	NYSE	NVG	Mon, Apr 16, 2018	14.50	14.52	14.49	14.50
3922	NYSE	NVG	Fri, Apr 13, 2018	14.50	14.53	14.49	14.50
3921	NYSE	NVG	Thu, Apr 12, 2018	14.56	14.56	14.50	14.51
3920	NYSE	NVG	Wed, Apr 11, 2018	14.56	14.61	14.53	14.54
3919	NYSE	NVG	Tue, Apr 10, 2018	14.58	14.59	14.52	14.52
3918	NYSE	NVG	Mon, Apr 9, 2018	14.62	14.62	14.57	14.58
3917	NYSE	NVG	Fri, Apr 6, 2018	14.57	14.64	14.56	14.56
3916	NYSE	NVG	Thu, Apr 5, 2018	14.51	14.52	14.47	14.52
3915	NYSE	NVG	Wed, Apr 4, 2018	14.54	14.55	14.46	14.48
3914	NYSE	NVG	Tue, Apr 3, 2018	14.58	14.59	14.45	14.49
3913	NYSE	NVG	Mon, Apr 2, 2018	14.57	14.58	14.53	14.55
3912	NYSE	NVG	Thu, Mar 29, 2018	14.43	14.53	14.43	14.51
3911	NYSE	NVG	Wed, Mar 28, 2018	14.42	14.48	14.39	14.43
3910	NYSE	NVG	Tue, Mar 27, 2018	14.34	14.40	14.34	14.39
3909	NYSE	NVG	Mon, Mar 26, 2018	14.35	14.36	14.32	14.35
3908	NYSE	NVG	Fri, Mar 23, 2018	14.40	14.41	14.36	14.36
3907	NYSE	NVG	Thu, Mar 22, 2018	14.38	14.42	14.37	14.40
3906	NYSE	NVG	Wed, Mar 21, 2018	14.36	14.37	14.32	14.37
3905	NYSE	NVG	Tue, Mar 20, 2018	14.39	14.40	14.35	14.38
3904	NYSE	NVG	Mon, Mar 19, 2018	14.40	14.40	14.34	14.40
3903	NYSE	NVG	Fri, Mar 16, 2018	14.38	14.41	14.35	14.40
3902	NYSE	NVG	Thu, Mar 15, 2018	14.43	14.45	14.38	14.38
3901	NYSE	NVG	Wed, Mar 14, 2018	14.45	14.46	14.41	14.43
3900	NYSE	NVG	Tue, Mar 13, 2018	14.51	14.54	14.48	14.42
3899	NYSE	NVG	Mon, Mar 12, 2018	14.51	14.52	14.45	14.52
3898	NYSE	NVG	Fri, Mar 9, 2018	14.42	14.51	14.39	14.47
3897	NYSE	NVG	Thu, Mar 8, 2018	14.42	14.48	14.40	14.42
3896	NYSE	NVG	Wed, Mar 7, 2018	14.42	14.44	14.40	14.44
3895	NYSE	NVG	Tue, Mar 6, 2018	14.41	14.47	14.37	14.42
3894	NYSE	NVG	Mon, Mar 5, 2018	14.41	14.45	14.38	14.42
3893	NYSE	NVG	Fri, Mar 2, 2018	14.37	14.41	14.34	14.40
3892	NYSE	NVG	Thu, Mar 1, 2018	14.43	14.43	14.34	14.38
3891	NYSE	NVG	Wed, Feb 28, 2018	14.46	14.46	14.37	14.40
3890	NYSE	NVG	Tue, Feb 27, 2018	14.44	14.45	14.38	14.41
3889	NYSE	NVG	Mon, Feb 26, 2018	14.44	14.45	14.39	14.42
3888	NYSE	NVG	Fri, Feb 23, 2018	14.35	14.46	14.33	14.40
3887	NYSE	NVG	Thu, Feb 22, 2018	14.36	14.40	14.27	14.32
3886	NYSE	NVG	Wed, Feb 21, 2018	14.46	14.46	14.34	14.36
3885	NYSE	NVG	Tue, Feb 20, 2018	14.45	14.50	14.38	14.42
3884	NYSE	NVG	Fri, Feb 16, 2018	14.47	14.48	14.43	14.45
3883	NYSE	NVG	Thu, Feb 15, 2018	14.47	14.49	14.41	14.47
3882	NYSE	NVG	Wed, Feb 14, 2018	14.50	14.53	14.43	14.47
3881	NYSE	NVG	Tue, Feb 13, 2018	14.56	14.63	14.49	14.54
3880	NYSE	NVG	Mon, Feb 12, 2018	14.44	14.55	14.41	14.53
3879	NYSE	NVG	Fri, Feb 9, 2018	14.50	14.50	14.35	14.43
3878	NYSE	NVG	Thu, Feb 8, 2018	14.53	14.56	14.49	14.51
3877	NYSE	NVG	Wed, Feb 7, 2018	14.51	14.67	14.51	14.56
3876	NYSE	NVG	Tue, Feb 6, 2018	14.29	14.51	14.26	14.51
3875	NYSE	NVG	Mon, Feb 5, 2018	14.46	14.48	14.06	14.33
3874	NYSE	NVG	Fri, Feb 2, 2018	14.52	14.56	14.46	14.48
3873	NYSE	NVG	Thu, Feb 1, 2018	14.67	14.71	14.60	14.62
3872	NYSE	NVG	Wed, Jan 31, 2018	14.70	14.75	14.64	14.67
3871	NYSE	NVG	Tue, Jan 30, 2018	14.71	14.74	14.65	14.67
3870	NYSE	NVG	Mon, Jan 29, 2018	14.93	14.93	14.71	14.74
3869	NYSE	NVG	Fri, Jan 26, 2018	15.08	15.08	14.95	14.98
3868	NYSE	NVG	Thu, Jan 25, 2018	15.18	15.19	15.08	15.09
3867	NYSE	NVG	Wed, Jan 24, 2018	15.25	15.26	15.16	15.18
3866	NYSE	NVG	Tue, Jan 23, 2018	15.28	15.30	15.25	15.25
3865	NYSE	NVG	Mon, Jan 22, 2018	15.27	15.29	15.23	15.26
3864	NYSE	NVG	Fri, Jan 19, 2018	15.25	15.28	15.22	15.25
3863	NYSE	NVG	Thu, Jan 18, 2018	15.26	15.29	15.25	15.27
3862	NYSE	NVG	Wed, Jan 17, 2018	15.32	15.35	15.26	15.30
3861	NYSE	NVG	Tue, Jan 16, 2018	15.37	15.38	15.25	15.33
3860	NYSE	NVG	Fri, Jan 12, 2018	15.38	15.38	15.28	15.30
3859	NYSE	NVG	Thu, Jan 11, 2018	15.44	15.46	15.39	15.40
3858	NYSE	NVG	Wed, Jan 10, 2018	15.54	15.54	15.41	15.45
3857	NYSE	NVG	Tue, Jan 9, 2018	15.64	15.65	15.57	15.59
3856	NYSE	NVG	Mon, Jan 8, 2018	15.64	15.67	15.63	15.65
3855	NYSE	NVG	Fri, Jan 5, 2018	15.58	15.64	15.54	15.60
3854	NYSE	NVG	Thu, Jan 4, 2018	15.53	15.60	15.53	15.58
3853	NYSE	NVG	Wed, Jan 3, 2018	15.48	15.56	15.48	15.53
3852	NYSE	NVG	Tue, Jan 2, 2018	15.47	15.48	15.42	15.47
3851	NYSE	NVG	Fri, Dec 29, 2017	15.45	15.50	15.42	15.44
3850	NYSE	NVG	Thu, Dec 28, 2017	15.33	15.43	15.33	15.43
3849	NYSE	NVG	Wed, Dec 27, 2017	15.31	15.38	15.28	15.35
3848	NYSE	NVG	Tue, Dec 26, 2017	15.30	15.31	15.25	15.27
3847	NYSE	NVG	Fri, Dec 22, 2017	15.26	15.29	15.24	15.25
3846	NYSE	NVG	Thu, Dec 21, 2017	15.20	15.26	15.20	15.26
3845	NYSE	NVG	Wed, Dec 20, 2017	15.26	15.26	15.21	15.24
3844	NYSE	NVG	Tue, Dec 19, 2017	15.35	15.36	15.27	15.30
3843	NYSE	NVG	Mon, Dec 18, 2017	15.42	15.42	15.38	15.39
3842	NYSE	NVG	Fri, Dec 15, 2017	15.41	15.45	15.40	15.41
3841	NYSE	NVG	Thu, Dec 14, 2017	15.44	15.47	15.38	15.45
3840	NYSE	NVG	Wed, Dec 13, 2017	15.57	15.59	15.47	15.41
3839	NYSE	NVG	Tue, Dec 12, 2017	15.61	15.62	15.58	15.59
3838	NYSE	NVG	Mon, Dec 11, 2017	15.65	15.65	15.60	15.64
3837	NYSE	NVG	Fri, Dec 8, 2017	15.62	15.70	15.60	15.68
3836	NYSE	NVG	Thu, Dec 7, 2017	15.56	15.66	15.55	15.65
3835	NYSE	NVG	Wed, Dec 6, 2017	15.49	15.58	15.48	15.58
3834	NYSE	NVG	Tue, Dec 5, 2017	15.41	15.49	15.40	15.46
3833	NYSE	NVG	Mon, Dec 4, 2017	15.47	15.47	15.32	15.40
3832	NYSE	NVG	Fri, Dec 1, 2017	15.34	15.35	15.29	15.31
3831	NYSE	NVG	Thu, Nov 30, 2017	15.28	15.33	15.24	15.28
3830	NYSE	NVG	Wed, Nov 29, 2017	15.29	15.34	15.21	15.30
3829	NYSE	NVG	Tue, Nov 28, 2017	15.41	15.41	15.29	15.33
3828	NYSE	NVG	Mon, Nov 27, 2017	15.42	15.43	15.39	15.41
3827	NYSE	NVG	Fri, Nov 24, 2017	15.43	15.43	15.36	15.43
3826	NYSE	NVG	Wed, Nov 22, 2017	15.38	15.43	15.34	15.43
3825	NYSE	NVG	Tue, Nov 21, 2017	15.41	15.45	15.38	15.38
3824	NYSE	NVG	Mon, Nov 20, 2017	15.41	15.43	15.38	15.42
3823	NYSE	NVG	Fri, Nov 17, 2017	15.43	15.45	15.40	15.43
3822	NYSE	NVG	Thu, Nov 16, 2017	15.39	15.41	15.36	15.39
3821	NYSE	NVG	Wed, Nov 15, 2017	15.40	15.41	15.36	15.38
3820	NYSE	NVG	Tue, Nov 14, 2017	15.30	15.37	15.30	15.35
3819	NYSE	NVG	Mon, Nov 13, 2017	15.39	15.42	15.36	15.33
3818	NYSE	NVG	Fri, Nov 10, 2017	15.31	15.36	15.29	15.36
3817	NYSE	NVG	Thu, Nov 9, 2017	15.35	15.38	15.28	15.35
3816	NYSE	NVG	Wed, Nov 8, 2017	15.35	15.35	15.28	15.35
3815	NYSE	NVG	Tue, Nov 7, 2017	15.28	15.34	15.26	15.32
3814	NYSE	NVG	Mon, Nov 6, 2017	15.25	15.31	15.21	15.31
3813	NYSE	NVG	Fri, Nov 3, 2017	15.18	15.29	15.17	15.23
3812	NYSE	NVG	Thu, Nov 2, 2017	15.15	15.23	15.14	15.18
3811	NYSE	NVG	Wed, Nov 1, 2017	15.20	15.20	15.13	15.15
3810	NYSE	NVG	Tue, Oct 31, 2017	15.17	15.18	15.11	15.17
3809	NYSE	NVG	Mon, Oct 30, 2017	15.24	15.27	15.17	15.17
3808	NYSE	NVG	Fri, Oct 27, 2017	15.27	15.29	15.15	15.17
3807	NYSE	NVG	Thu, Oct 26, 2017	15.36	15.38	15.28	15.29
3806	NYSE	NVG	Wed, Oct 25, 2017	15.43	15.43	15.34	15.34
3805	NYSE	NVG	Tue, Oct 24, 2017	15.46	15.49	15.45	15.48
3804	NYSE	NVG	Mon, Oct 23, 2017	15.45	15.50	15.44	15.49
3803	NYSE	NVG	Fri, Oct 20, 2017	15.50	15.50	15.44	15.44
3802	NYSE	NVG	Thu, Oct 19, 2017	15.55	15.56	15.50	15.55
3801	NYSE	NVG	Wed, Oct 18, 2017	15.49	15.54	15.45	15.53
3800	NYSE	NVG	Tue, Oct 17, 2017	15.50	15.53	15.45	15.48
3799	NYSE	NVG	Mon, Oct 16, 2017	15.53	15.55	15.50	15.52
3798	NYSE	NVG	Fri, Oct 13, 2017	15.53	15.56	15.50	15.55
3797	NYSE	NVG	Thu, Oct 12, 2017	15.47	15.48	15.45	15.48
3796	NYSE	NVG	Wed, Oct 11, 2017	15.49	15.53	15.49	15.44
3795	NYSE	NVG	Tue, Oct 10, 2017	15.47	15.54	15.47	15.49
3794	NYSE	NVG	Mon, Oct 9, 2017	15.45	15.51	15.45	15.47
3793	NYSE	NVG	Fri, Oct 6, 2017	15.45	15.51	15.41	15.43
3792	NYSE	NVG	Thu, Oct 5, 2017	15.51	15.51	15.46	15.47
3791	NYSE	NVG	Wed, Oct 4, 2017	15.43	15.50	15.38	15.49
3790	NYSE	NVG	Tue, Oct 3, 2017	15.47	15.47	15.42	15.47
3789	NYSE	NVG	Mon, Oct 2, 2017	15.44	15.47	15.40	15.44
3788	NYSE	NVG	Fri, Sep 29, 2017	15.38	15.39	15.35	15.39
3787	NYSE	NVG	Thu, Sep 28, 2017	15.36	15.37	15.29	15.36
3786	NYSE	NVG	Wed, Sep 27, 2017	15.52	15.53	15.38	15.38
3785	NYSE	NVG	Tue, Sep 26, 2017	15.66	15.67	15.53	15.57
3784	NYSE	NVG	Mon, Sep 25, 2017	15.58	15.65	15.56	15.65
3783	NYSE	NVG	Fri, Sep 22, 2017	15.48	15.58	15.48	15.58
3782	NYSE	NVG	Thu, Sep 21, 2017	15.60	15.65	15.43	15.48
3781	NYSE	NVG	Wed, Sep 20, 2017	15.69	15.73	15.59	15.62
3780	NYSE	NVG	Tue, Sep 19, 2017	15.73	15.73	15.68	15.72
3779	NYSE	NVG	Mon, Sep 18, 2017	15.69	15.72	15.67	15.71
3778	NYSE	NVG	Fri, Sep 15, 2017	15.72	15.74	15.66	15.70
3777	NYSE	NVG	Thu, Sep 14, 2017	15.73	15.75	15.67	15.70
3776	NYSE	NVG	Wed, Sep 13, 2017	15.81	15.83	15.78	15.73
3775	NYSE	NVG	Tue, Sep 12, 2017	15.74	15.82	15.74	15.81
3774	NYSE	NVG	Mon, Sep 11, 2017	15.75	15.79	15.71	15.78
3773	NYSE	NVG	Fri, Sep 8, 2017	15.76	15.77	15.69	15.77
3772	NYSE	NVG	Thu, Sep 7, 2017	15.69	15.75	15.65	15.72
3771	NYSE	NVG	Wed, Sep 6, 2017	15.66	15.66	15.62	15.66
3770	NYSE	NVG	Tue, Sep 5, 2017	15.66	15.67	15.57	15.61
3769	NYSE	NVG	Fri, Sep 1, 2017	15.64	15.66	15.60	15.64
3768	NYSE	NVG	Thu, Aug 31, 2017	15.55	15.61	15.53	15.60
3767	NYSE	NVG	Wed, Aug 30, 2017	15.57	15.59	15.50	15.51
3766	NYSE	NVG	Tue, Aug 29, 2017	15.50	15.59	15.50	15.57
3765	NYSE	NVG	Mon, Aug 28, 2017	15.47	15.50	15.46	15.48
3764	NYSE	NVG	Fri, Aug 25, 2017	15.51	15.51	15.47	15.49
3763	NYSE	NVG	Thu, Aug 24, 2017	15.47	15.53	15.47	15.50
3762	NYSE	NVG	Wed, Aug 23, 2017	15.51	15.54	15.48	15.54
3761	NYSE	NVG	Tue, Aug 22, 2017	15.50	15.51	15.47	15.47
3760	NYSE	NVG	Mon, Aug 21, 2017	15.46	15.51	15.43	15.51
3759	NYSE	NVG	Fri, Aug 18, 2017	15.43	15.45	15.33	15.45
3758	NYSE	NVG	Thu, Aug 17, 2017	15.32	15.43	15.32	15.42
3757	NYSE	NVG	Wed, Aug 16, 2017	15.27	15.37	15.27	15.36
3756	NYSE	NVG	Tue, Aug 15, 2017	15.25	15.30	15.23	15.27
3755	NYSE	NVG	Mon, Aug 14, 2017	15.30	15.34	15.26	15.29
3754	NYSE	NVG	Fri, Aug 11, 2017	15.13	15.29	15.11	15.28
3753	NYSE	NVG	Thu, Aug 10, 2017	15.32	15.34	15.23	15.20
3752	NYSE	NVG	Wed, Aug 9, 2017	15.37	15.41	15.28	15.30
3751	NYSE	NVG	Tue, Aug 8, 2017	15.45	15.45	15.35	15.35
3750	NYSE	NVG	Mon, Aug 7, 2017	15.45	15.46	15.43	15.45
3749	NYSE	NVG	Fri, Aug 4, 2017	15.50	15.52	15.41	15.41
3748	NYSE	NVG	Thu, Aug 3, 2017	15.50	15.55	15.49	15.50
3747	NYSE	NVG	Wed, Aug 2, 2017	15.50	15.52	15.47	15.49
3746	NYSE	NVG	Tue, Aug 1, 2017	15.54	15.54	15.48	15.50
3745	NYSE	NVG	Mon, Jul 31, 2017	15.50	15.52	15.46	15.49
3744	NYSE	NVG	Fri, Jul 28, 2017	15.42	15.48	15.39	15.48
3743	NYSE	NVG	Thu, Jul 27, 2017	15.41	15.44	15.37	15.39
3742	NYSE	NVG	Wed, Jul 26, 2017	15.38	15.45	15.37	15.40
3741	NYSE	NVG	Tue, Jul 25, 2017	15.44	15.44	15.35	15.39
3740	NYSE	NVG	Mon, Jul 24, 2017	15.40	15.45	15.37	15.45
3739	NYSE	NVG	Fri, Jul 21, 2017	15.38	15.41	15.35	15.39
3738	NYSE	NVG	Thu, Jul 20, 2017	15.36	15.37	15.31	15.37
3737	NYSE	NVG	Wed, Jul 19, 2017	15.35	15.35	15.28	15.31
3736	NYSE	NVG	Tue, Jul 18, 2017	15.31	15.34	15.31	15.33
3735	NYSE	NVG	Mon, Jul 17, 2017	15.36	15.36	15.28	15.29
3734	NYSE	NVG	Fri, Jul 14, 2017	15.34	15.38	15.30	15.38
3733	NYSE	NVG	Thu, Jul 13, 2017	15.30	15.31	15.24	15.27
3732	NYSE	NVG	Wed, Jul 12, 2017	15.25	15.30	15.24	15.27
3731	NYSE	NVG	Tue, Jul 11, 2017	15.22	15.27	15.22	15.20
3730	NYSE	NVG	Mon, Jul 10, 2017	15.18	15.23	15.16	15.22
3729	NYSE	NVG	Fri, Jul 7, 2017	15.11	15.16	15.11	15.15
3728	NYSE	NVG	Thu, Jul 6, 2017	15.17	15.20	15.13	15.13
3727	NYSE	NVG	Wed, Jul 5, 2017	15.23	15.28	15.20	15.22
3726	NYSE	NVG	Mon, Jul 3, 2017	15.20	15.23	15.16	15.23
3725	NYSE	NVG	Fri, Jun 30, 2017	15.15	15.17	15.11	15.15
3724	NYSE	NVG	Thu, Jun 29, 2017	15.21	15.21	15.12	15.14
3723	NYSE	NVG	Wed, Jun 28, 2017	15.23	15.25	15.18	15.23
3722	NYSE	NVG	Tue, Jun 27, 2017	15.25	15.25	15.20	15.21
3721	NYSE	NVG	Mon, Jun 26, 2017	15.26	15.29	15.21	15.26
3720	NYSE	NVG	Fri, Jun 23, 2017	15.21	15.24	15.21	15.23
3719	NYSE	NVG	Thu, Jun 22, 2017	15.23	15.23	15.18	15.22
3718	NYSE	NVG	Wed, Jun 21, 2017	15.20	15.23	15.16	15.20
3717	NYSE	NVG	Tue, Jun 20, 2017	15.18	15.20	15.15	15.20
3716	NYSE	NVG	Mon, Jun 19, 2017	15.15	15.18	15.13	15.16
3715	NYSE	NVG	Fri, Jun 16, 2017	15.16	15.17	15.11	15.13
3714	NYSE	NVG	Thu, Jun 15, 2017	15.13	15.14	15.11	15.14
3713	NYSE	NVG	Wed, Jun 14, 2017	15.14	15.15	15.09	15.14
3712	NYSE	NVG	Tue, Jun 13, 2017	15.11	15.13	15.05	15.08
3711	NYSE	NVG	Mon, Jun 12, 2017	15.11	15.17	15.11	15.09
3710	NYSE	NVG	Fri, Jun 9, 2017	15.14	15.15	15.10	15.11
3709	NYSE	NVG	Thu, Jun 8, 2017	15.19	15.21	15.13	15.15
3708	NYSE	NVG	Wed, Jun 7, 2017	15.18	15.19	15.14	15.17
3707	NYSE	NVG	Tue, Jun 6, 2017	15.16	15.19	15.13	15.17
3706	NYSE	NVG	Mon, Jun 5, 2017	15.15	15.16	15.09	15.13
3705	NYSE	NVG	Fri, Jun 2, 2017	15.16	15.19	15.10	15.15
3704	NYSE	NVG	Thu, Jun 1, 2017	15.14	15.18	15.11	15.13
3703	NYSE	NVG	Wed, May 31, 2017	15.06	15.10	15.05	15.09
3702	NYSE	NVG	Tue, May 30, 2017	15.01	15.05	15.00	15.05
3701	NYSE	NVG	Fri, May 26, 2017	15.02	15.04	14.96	14.97
3700	NYSE	NVG	Thu, May 25, 2017	15.00	15.10	14.95	14.98
3699	NYSE	NVG	Wed, May 24, 2017	14.96	15.04	14.96	15.00
3698	NYSE	NVG	Tue, May 23, 2017	14.94	14.99	14.93	14.99
3697	NYSE	NVG	Mon, May 22, 2017	14.93	14.94	14.89	14.92
3696	NYSE	NVG	Fri, May 19, 2017	14.94	14.94	14.88	14.91
3695	NYSE	NVG	Thu, May 18, 2017	14.95	15.01	14.91	14.93
3694	NYSE	NVG	Wed, May 17, 2017	14.88	14.99	14.88	14.91
3693	NYSE	NVG	Tue, May 16, 2017	14.85	14.90	14.84	14.87
3692	NYSE	NVG	Mon, May 15, 2017	14.79	14.88	14.79	14.85
3691	NYSE	NVG	Fri, May 12, 2017	14.77	14.84	14.77	14.81
3690	NYSE	NVG	Thu, May 11, 2017	14.68	14.76	14.67	14.73
3689	NYSE	NVG	Wed, May 10, 2017	14.78	14.78	14.73	14.69
3688	NYSE	NVG	Tue, May 9, 2017	14.78	14.80	14.75	14.76
3687	NYSE	NVG	Mon, May 8, 2017	14.81	14.83	14.77	14.80
3686	NYSE	NVG	Fri, May 5, 2017	14.77	14.82	14.76	14.79
3685	NYSE	NVG	Thu, May 4, 2017	14.79	14.80	14.77	14.77
3684	NYSE	NVG	Wed, May 3, 2017	14.82	14.86	14.80	14.80
3683	NYSE	NVG	Tue, May 2, 2017	14.81	14.85	14.79	14.80
3682	NYSE	NVG	Mon, May 1, 2017	14.86	14.89	14.79	14.81
3681	NYSE	NVG	Fri, Apr 28, 2017	14.77	14.87	14.77	14.83
3680	NYSE	NVG	Thu, Apr 27, 2017	14.76	14.83	14.76	14.79
3679	NYSE	NVG	Wed, Apr 26, 2017	14.73	14.81	14.73	14.76
3678	NYSE	NVG	Tue, Apr 25, 2017	14.80	14.85	14.74	14.74
3677	NYSE	NVG	Mon, Apr 24, 2017	14.90	14.94	14.83	14.83
3676	NYSE	NVG	Fri, Apr 21, 2017	15.00	15.00	14.91	14.92
3675	NYSE	NVG	Thu, Apr 20, 2017	14.94	14.98	14.91	14.96
3674	NYSE	NVG	Wed, Apr 19, 2017	14.89	14.93	14.86	14.93
3673	NYSE	NVG	Tue, Apr 18, 2017	14.85	14.90	14.85	14.87
3672	NYSE	NVG	Mon, Apr 17, 2017	14.84	14.89	14.83	14.83
3671	NYSE	NVG	Thu, Apr 13, 2017	14.86	14.90	14.82	14.86
3670	NYSE	NVG	Wed, Apr 12, 2017	14.79	14.84	14.77	14.81
3669	NYSE	NVG	Tue, Apr 11, 2017	14.72	14.77	14.72	14.77
3668	NYSE	NVG	Mon, Apr 10, 2017	14.74	14.79	14.73	14.72
3667	NYSE	NVG	Fri, Apr 7, 2017	14.71	14.73	14.70	14.71
3666	NYSE	NVG	Thu, Apr 6, 2017	14.67	14.74	14.64	14.71
3665	NYSE	NVG	Wed, Apr 5, 2017	14.68	14.71	14.65	14.66
3664	NYSE	NVG	Tue, Apr 4, 2017	14.72	14.73	14.66	14.66
3663	NYSE	NVG	Mon, Apr 3, 2017	14.68	14.71	14.65	14.70
3662	NYSE	NVG	Fri, Mar 31, 2017	14.60	14.63	14.59	14.62
3661	NYSE	NVG	Thu, Mar 30, 2017	14.62	14.67	14.59	14.62
3660	NYSE	NVG	Wed, Mar 29, 2017	14.58	14.61	14.56	14.61
3659	NYSE	NVG	Tue, Mar 28, 2017	14.59	14.60	14.54	14.54
3658	NYSE	NVG	Mon, Mar 27, 2017	14.56	14.59	14.52	14.57
3657	NYSE	NVG	Fri, Mar 24, 2017	14.41	14.55	14.39	14.53
3656	NYSE	NVG	Thu, Mar 23, 2017	14.38	14.40	14.34	14.39
3655	NYSE	NVG	Wed, Mar 22, 2017	14.40	14.43	14.36	14.38
3654	NYSE	NVG	Tue, Mar 21, 2017	14.39	14.52	14.35	14.39
3653	NYSE	NVG	Mon, Mar 20, 2017	14.30	14.39	14.28	14.39
3652	NYSE	NVG	Fri, Mar 17, 2017	14.24	14.29	14.24	14.28
3651	NYSE	NVG	Thu, Mar 16, 2017	14.30	14.30	14.17	14.27
3650	NYSE	NVG	Wed, Mar 15, 2017	14.09	14.27	14.05	14.27
3649	NYSE	NVG	Tue, Mar 14, 2017	14.06	14.12	14.06	14.09
3648	NYSE	NVG	Mon, Mar 13, 2017	14.09	14.10	14.04	14.06
3647	NYSE	NVG	Fri, Mar 10, 2017	14.10	14.20	14.05	14.11
3646	NYSE	NVG	Thu, Mar 9, 2017	14.29	14.32	14.06	14.08
3645	NYSE	NVG	Wed, Mar 8, 2017	14.31	14.32	14.27	14.32
3644	NYSE	NVG	Tue, Mar 7, 2017	14.41	14.42	14.35	14.38
3643	NYSE	NVG	Mon, Mar 6, 2017	14.43	14.45	14.36	14.38
3642	NYSE	NVG	Fri, Mar 3, 2017	14.47	14.53	14.40	14.41
3641	NYSE	NVG	Thu, Mar 2, 2017	14.52	14.53	14.42	14.46
3640	NYSE	NVG	Wed, Mar 1, 2017	14.57	14.57	14.51	14.53
3639	NYSE	NVG	Tue, Feb 28, 2017	14.61	14.63	14.55	14.57
3638	NYSE	NVG	Mon, Feb 27, 2017	14.64	14.64	14.55	14.55
3637	NYSE	NVG	Fri, Feb 24, 2017	14.56	14.64	14.55	14.64
3636	NYSE	NVG	Thu, Feb 23, 2017	14.54	14.59	14.49	14.52
3635	NYSE	NVG	Wed, Feb 22, 2017	14.51	14.55	14.47	14.49
3634	NYSE	NVG	Tue, Feb 21, 2017	14.41	14.49	14.41	14.48
3633	NYSE	NVG	Fri, Feb 17, 2017	14.41	14.45	14.39	14.40
3632	NYSE	NVG	Thu, Feb 16, 2017	14.26	14.40	14.26	14.37
3631	NYSE	NVG	Wed, Feb 15, 2017	14.38	14.44	14.26	14.26
3630	NYSE	NVG	Tue, Feb 14, 2017	14.52	14.57	14.42	14.42
3629	NYSE	NVG	Mon, Feb 13, 2017	14.55	14.56	14.50	14.51
3628	NYSE	NVG	Fri, Feb 10, 2017	14.59	14.62	14.58	14.62
3627	NYSE	NVG	Thu, Feb 9, 2017	14.65	14.67	14.58	14.59
3626	NYSE	NVG	Wed, Feb 8, 2017	14.65	14.69	14.63	14.68
3625	NYSE	NVG	Tue, Feb 7, 2017	14.57	14.62	14.57	14.62
3624	NYSE	NVG	Mon, Feb 6, 2017	14.61	14.65	14.56	14.57
3623	NYSE	NVG	Fri, Feb 3, 2017	14.67	14.67	14.57	14.59
3622	NYSE	NVG	Thu, Feb 2, 2017	14.63	14.67	14.57	14.61
3621	NYSE	NVG	Wed, Feb 1, 2017	14.65	14.66	14.59	14.61
3620	NYSE	NVG	Tue, Jan 31, 2017	14.65	14.66	14.61	14.65
3619	NYSE	NVG	Mon, Jan 30, 2017	14.60	14.61	14.56	14.60
3618	NYSE	NVG	Fri, Jan 27, 2017	14.57	14.58	14.51	14.58
3617	NYSE	NVG	Thu, Jan 26, 2017	14.50	14.54	14.44	14.54
3616	NYSE	NVG	Wed, Jan 25, 2017	14.53	14.56	14.47	14.52
3615	NYSE	NVG	Tue, Jan 24, 2017	14.50	14.59	14.50	14.54
3614	NYSE	NVG	Mon, Jan 23, 2017	14.52	14.59	14.52	14.54
3613	NYSE	NVG	Fri, Jan 20, 2017	14.58	14.58	14.47	14.51
3612	NYSE	NVG	Thu, Jan 19, 2017	14.61	14.62	14.53	14.58
3611	NYSE	NVG	Wed, Jan 18, 2017	14.65	14.68	14.62	14.63
3610	NYSE	NVG	Tue, Jan 17, 2017	14.64	14.68	14.62	14.66
3609	NYSE	NVG	Fri, Jan 13, 2017	14.64	14.64	14.59	14.63
3608	NYSE	NVG	Thu, Jan 12, 2017	14.72	14.73	14.62	14.64
3607	NYSE	NVG	Wed, Jan 11, 2017	14.62	14.70	14.62	14.68
3606	NYSE	NVG	Tue, Jan 10, 2017	14.73	14.80	14.71	14.66
3605	NYSE	NVG	Mon, Jan 9, 2017	14.72	14.78	14.72	14.72
3604	NYSE	NVG	Fri, Jan 6, 2017	14.68	14.69	14.63	14.68
3603	NYSE	NVG	Thu, Jan 5, 2017	14.67	14.68	14.64	14.66
3602	NYSE	NVG	Wed, Jan 4, 2017	14.51	14.62	14.51	14.60
3601	NYSE	NVG	Tue, Jan 3, 2017	14.45	14.53	14.38	14.49
3600	NYSE	NVG	Fri, Dec 30, 2016	14.39	14.46	14.36	14.46
3599	NYSE	NVG	Thu, Dec 29, 2016	14.29	14.38	14.24	14.32
3598	NYSE	NVG	Wed, Dec 28, 2016	14.16	14.29	14.12	14.29
3597	NYSE	NVG	Tue, Dec 27, 2016	14.15	14.19	14.09	14.11
3596	NYSE	NVG	Fri, Dec 23, 2016	14.20	14.22	14.15	14.16
3595	NYSE	NVG	Thu, Dec 22, 2016	14.08	14.17	14.07	14.17
3594	NYSE	NVG	Wed, Dec 21, 2016	14.03	14.12	14.03	14.08
3593	NYSE	NVG	Tue, Dec 20, 2016	14.03	14.05	13.99	14.03
3592	NYSE	NVG	Mon, Dec 19, 2016	14.12	14.16	14.00	14.05
3591	NYSE	NVG	Fri, Dec 16, 2016	14.06	14.10	14.02	14.07
3590	NYSE	NVG	Thu, Dec 15, 2016	14.10	14.10	14.00	14.05
3589	NYSE	NVG	Wed, Dec 14, 2016	14.13	14.27	14.11	14.13
3588	NYSE	NVG	Tue, Dec 13, 2016	14.05	14.12	14.04	14.10
3587	NYSE	NVG	Mon, Dec 12, 2016	14.16	14.19	14.13	14.03
3586	NYSE	NVG	Fri, Dec 9, 2016	14.29	14.30	14.20	14.24
3585	NYSE	NVG	Thu, Dec 8, 2016	14.36	14.39	14.27	14.30
3584	NYSE	NVG	Wed, Dec 7, 2016	14.10	14.40	14.08	14.38
3583	NYSE	NVG	Tue, Dec 6, 2016	13.94	14.07	13.94	14.07
3582	NYSE	NVG	Mon, Dec 5, 2016	13.93	13.96	13.88	13.94
3581	NYSE	NVG	Fri, Dec 2, 2016	13.98	13.98	13.85	13.91
3580	NYSE	NVG	Thu, Dec 1, 2016	14.00	14.02	13.89	13.90
3579	NYSE	NVG	Wed, Nov 30, 2016	14.02	14.11	13.96	14.02
3578	NYSE	NVG	Tue, Nov 29, 2016	14.12	14.16	14.08	14.09
3577	NYSE	NVG	Mon, Nov 28, 2016	14.07	14.19	14.07	14.15
3576	NYSE	NVG	Fri, Nov 25, 2016	14.03	14.07	14.01	14.02
3575	NYSE	NVG	Wed, Nov 23, 2016	13.93	14.05	13.92	14.02
3574	NYSE	NVG	Tue, Nov 22, 2016	14.16	14.21	14.10	14.13
3573	NYSE	NVG	Mon, Nov 21, 2016	14.05	14.18	14.05	14.13
3572	NYSE	NVG	Fri, Nov 18, 2016	14.17	14.21	14.01	14.04
3571	NYSE	NVG	Thu, Nov 17, 2016	14.30	14.34	14.18	14.22
3570	NYSE	NVG	Wed, Nov 16, 2016	14.31	14.43	14.27	14.34
3569	NYSE	NVG	Tue, Nov 15, 2016	14.03	14.32	14.02	14.32
3568	NYSE	NVG	Mon, Nov 14, 2016	14.23	14.27	13.97	14.07
3567	NYSE	NVG	Fri, Nov 11, 2016	14.33	14.47	14.22	14.35
3566	NYSE	NVG	Thu, Nov 10, 2016	14.78	14.82	14.38	14.43
3565	NYSE	NVG	Wed, Nov 9, 2016	14.97	14.98	14.87	14.84
3564	NYSE	NVG	Tue, Nov 8, 2016	15.05	15.08	15.01	15.03
3563	NYSE	NVG	Mon, Nov 7, 2016	14.99	15.03	14.99	15.01
3562	NYSE	NVG	Fri, Nov 4, 2016	15.00	15.02	14.98	15.00
3561	NYSE	NVG	Thu, Nov 3, 2016	15.00	15.03	14.99	15.00
3560	NYSE	NVG	Wed, Nov 2, 2016	15.05	15.10	15.00	15.01
3559	NYSE	NVG	Tue, Nov 1, 2016	15.10	15.10	15.00	15.05
3558	NYSE	NVG	Mon, Oct 31, 2016	14.99	15.07	14.99	15.05
3557	NYSE	NVG	Fri, Oct 28, 2016	15.10	15.10	14.94	14.96
3556	NYSE	NVG	Thu, Oct 27, 2016	15.22	15.24	15.11	15.13
3555	NYSE	NVG	Wed, Oct 26, 2016	15.31	15.33	15.23	15.28
3554	NYSE	NVG	Tue, Oct 25, 2016	15.30	15.35	15.26	15.32
3553	NYSE	NVG	Mon, Oct 24, 2016	15.36	15.42	15.30	15.32
3552	NYSE	NVG	Fri, Oct 21, 2016	15.36	15.38	15.27	15.37
3551	NYSE	NVG	Thu, Oct 20, 2016	15.26	15.31	15.11	15.31
3550	NYSE	NVG	Wed, Oct 19, 2016	15.00	15.20	14.99	15.20
3549	NYSE	NVG	Tue, Oct 18, 2016	14.78	14.96	14.71	14.96
3548	NYSE	NVG	Mon, Oct 17, 2016	14.85	14.93	14.73	14.74
3547	NYSE	NVG	Fri, Oct 14, 2016	15.03	15.06	14.87	14.87
3546	NYSE	NVG	Thu, Oct 13, 2016	15.20	15.24	15.04	15.04
3545	NYSE	NVG	Wed, Oct 12, 2016	15.51	15.51	15.26	15.27
3544	NYSE	NVG	Tue, Oct 11, 2016	15.60	15.60	15.54	15.48
3543	NYSE	NVG	Mon, Oct 10, 2016	15.56	15.59	15.53	15.56
3542	NYSE	NVG	Fri, Oct 7, 2016	15.64	15.70	15.53	15.53
3541	NYSE	NVG	Thu, Oct 6, 2016	15.68	15.74	15.60	15.61
3540	NYSE	NVG	Wed, Oct 5, 2016	15.89	15.91	15.67	15.70
3539	NYSE	NVG	Tue, Oct 4, 2016	16.09	16.09	15.88	15.88
3538	NYSE	NVG	Mon, Oct 3, 2016	16.13	16.14	16.07	16.09
3537	NYSE	NVG	Fri, Sep 30, 2016	16.19	16.19	16.07	16.07
3536	NYSE	NVG	Thu, Sep 29, 2016	16.18	16.21	16.10	16.11
3535	NYSE	NVG	Wed, Sep 28, 2016	16.17	16.22	16.17	16.19
3534	NYSE	NVG	Tue, Sep 27, 2016	16.05	16.16	16.05	16.14
3533	NYSE	NVG	Mon, Sep 26, 2016	16.10	16.10	16.02	16.03
3532	NYSE	NVG	Fri, Sep 23, 2016	16.14	16.14	16.04	16.05
3531	NYSE	NVG	Thu, Sep 22, 2016	16.01	16.14	15.99	16.14
3530	NYSE	NVG	Wed, Sep 21, 2016	15.84	15.97	15.80	15.97
3529	NYSE	NVG	Tue, Sep 20, 2016	15.85	15.86	15.80	15.80
3528	NYSE	NVG	Mon, Sep 19, 2016	15.87	15.89	15.80	15.81
3527	NYSE	NVG	Fri, Sep 16, 2016	15.90	15.90	15.78	15.84
3526	NYSE	NVG	Thu, Sep 15, 2016	15.80	15.92	15.73	15.89
3525	NYSE	NVG	Wed, Sep 14, 2016	15.65	15.88	15.65	15.82
3524	NYSE	NVG	Tue, Sep 13, 2016	15.85	15.85	15.64	15.69
3523	NYSE	NVG	Mon, Sep 12, 2016	15.82	15.96	15.81	15.80
3522	NYSE	NVG	Fri, Sep 9, 2016	16.26	16.27	15.92	15.93
3521	NYSE	NVG	Thu, Sep 8, 2016	16.36	16.38	16.30	16.31
3520	NYSE	NVG	Wed, Sep 7, 2016	16.38	16.38	16.31	16.36
3519	NYSE	NVG	Tue, Sep 6, 2016	16.30	16.38	16.28	16.36
3518	NYSE	NVG	Fri, Sep 2, 2016	16.18	16.30	16.17	16.29
3517	NYSE	NVG	Thu, Sep 1, 2016	16.17	16.23	16.15	16.18
3516	NYSE	NVG	Wed, Aug 31, 2016	16.26	16.29	16.11	16.16
3515	NYSE	NVG	Tue, Aug 30, 2016	16.19	16.31	16.13	16.28
3514	NYSE	NVG	Mon, Aug 29, 2016	16.06	16.18	16.06	16.16
3513	NYSE	NVG	Fri, Aug 26, 2016	16.25	16.25	16.07	16.07
3512	NYSE	NVG	Thu, Aug 25, 2016	16.21	16.28	16.18	16.19
3511	NYSE	NVG	Wed, Aug 24, 2016	16.30	16.30	16.22	16.24
3510	NYSE	NVG	Tue, Aug 23, 2016	16.35	16.36	16.23	16.25
3509	NYSE	NVG	Mon, Aug 22, 2016	16.28	16.35	16.27	16.29
3508	NYSE	NVG	Fri, Aug 19, 2016	16.34	16.34	16.28	16.28
3507	NYSE	NVG	Thu, Aug 18, 2016	16.30	16.38	16.29	16.34
3506	NYSE	NVG	Wed, Aug 17, 2016	16.26	16.28	16.21	16.26
3505	NYSE	NVG	Tue, Aug 16, 2016	16.35	16.35	16.21	16.27
3504	NYSE	NVG	Mon, Aug 15, 2016	16.39	16.41	16.28	16.32
3503	NYSE	NVG	Fri, Aug 12, 2016	16.30	16.40	16.29	16.40
3502	NYSE	NVG	Thu, Aug 11, 2016	16.33	16.35	16.25	16.28
3501	NYSE	NVG	Wed, Aug 10, 2016	16.38	16.39	16.29	16.29
3500	NYSE	NVG	Tue, Aug 9, 2016	16.29	16.34	16.26	16.27
3499	NYSE	NVG	Mon, Aug 8, 2016	16.35	16.35	16.26	16.30
3498	NYSE	NVG	Fri, Aug 5, 2016	16.41	16.42	16.28	16.28
3497	NYSE	NVG	Thu, Aug 4, 2016	16.42	16.45	16.36	16.38
3496	NYSE	NVG	Wed, Aug 3, 2016	16.35	16.42	16.35	16.38
3495	NYSE	NVG	Tue, Aug 2, 2016	16.39	16.39	16.25	16.33
3494	NYSE	NVG	Mon, Aug 1, 2016	16.42	16.47	16.38	16.42
3493	NYSE	NVG	Fri, Jul 29, 2016	16.35	16.40	16.34	16.36
3492	NYSE	NVG	Thu, Jul 28, 2016	16.33	16.33	16.25	16.30
3491	NYSE	NVG	Wed, Jul 27, 2016	16.26	16.32	16.25	16.29
3490	NYSE	NVG	Tue, Jul 26, 2016	16.29	16.29	16.20	16.22
3489	NYSE	NVG	Mon, Jul 25, 2016	16.22	16.33	16.21	16.21
3488	NYSE	NVG	Fri, Jul 22, 2016	16.28	16.29	16.20	16.24
3487	NYSE	NVG	Thu, Jul 21, 2016	16.22	16.27	16.21	16.26
3486	NYSE	NVG	Wed, Jul 20, 2016	16.30	16.30	16.20	16.22
3485	NYSE	NVG	Tue, Jul 19, 2016	16.30	16.37	16.18	16.25
3484	NYSE	NVG	Mon, Jul 18, 2016	16.16	16.32	16.10	16.25
3483	NYSE	NVG	Fri, Jul 15, 2016	15.76	16.10	15.75	16.08
3482	NYSE	NVG	Thu, Jul 14, 2016	16.14	16.15	15.69	15.80
3481	NYSE	NVG	Wed, Jul 13, 2016	16.39	16.41	16.12	16.12
3480	NYSE	NVG	Tue, Jul 12, 2016	16.55	16.56	16.40	16.39
3479	NYSE	NVG	Mon, Jul 11, 2016	16.55	16.59	16.52	16.54
3478	NYSE	NVG	Fri, Jul 8, 2016	16.36	16.52	16.35	16.52
3477	NYSE	NVG	Thu, Jul 7, 2016	16.32	16.39	16.30	16.36
3476	NYSE	NVG	Wed, Jul 6, 2016	16.34	16.37	16.28	16.29
3475	NYSE	NVG	Tue, Jul 5, 2016	16.38	16.42	16.23	16.27
3474	NYSE	NVG	Fri, Jul 1, 2016	16.38	16.38	16.26	16.34
3473	NYSE	NVG	Thu, Jun 30, 2016	16.28	16.31	16.20	16.26
3472	NYSE	NVG	Wed, Jun 29, 2016	16.35	16.35	16.25	16.28
3471	NYSE	NVG	Tue, Jun 28, 2016	16.38	16.38	16.30	16.31
3470	NYSE	NVG	Mon, Jun 27, 2016	16.18	16.27	16.14	16.26
3469	NYSE	NVG	Fri, Jun 24, 2016	15.96	16.11	15.96	16.11
3468	NYSE	NVG	Thu, Jun 23, 2016	16.02	16.02	15.97	15.97
3467	NYSE	NVG	Wed, Jun 22, 2016	16.00	16.03	15.98	16.01
3466	NYSE	NVG	Tue, Jun 21, 2016	16.00	16.03	15.99	16.03
3465	NYSE	NVG	Mon, Jun 20, 2016	15.96	16.01	15.91	15.96
3464	NYSE	NVG	Fri, Jun 17, 2016	15.96	16.00	15.95	15.97
3463	NYSE	NVG	Thu, Jun 16, 2016	15.97	15.99	15.91	15.99
3462	NYSE	NVG	Wed, Jun 15, 2016	15.87	15.91	15.83	15.89
3461	NYSE	NVG	Tue, Jun 14, 2016	15.87	15.94	15.81	15.81
3460	NYSE	NVG	Mon, Jun 13, 2016	15.94	15.94	15.86	15.88
3459	NYSE	NVG	Fri, Jun 10, 2016	15.87	15.98	15.87	15.88
3458	NYSE	NVG	Thu, Jun 9, 2016	15.87	15.90	15.87	15.88
3457	NYSE	NVG	Wed, Jun 8, 2016	15.92	15.92	15.85	15.88
3456	NYSE	NVG	Tue, Jun 7, 2016	15.88	15.90	15.82	15.89
3455	NYSE	NVG	Mon, Jun 6, 2016	15.89	15.90	15.85	15.88
3454	NYSE	NVG	Fri, Jun 3, 2016	15.85	15.89	15.80	15.87
3453	NYSE	NVG	Thu, Jun 2, 2016	15.79	15.80	15.77	15.78
3452	NYSE	NVG	Wed, Jun 1, 2016	15.74	15.77	15.70	15.76
3451	NYSE	NVG	Tue, May 31, 2016	15.73	15.73	15.61	15.70
3450	NYSE	NVG	Fri, May 27, 2016	15.72	15.75	15.69	15.75
3449	NYSE	NVG	Thu, May 26, 2016	15.65	15.73	15.62	15.68
3448	NYSE	NVG	Wed, May 25, 2016	15.63	15.63	15.60	15.62
3447	NYSE	NVG	Tue, May 24, 2016	15.64	15.69	15.62	15.63
3446	NYSE	NVG	Mon, May 23, 2016	15.59	15.63	15.53	15.62
3445	NYSE	NVG	Fri, May 20, 2016	15.50	15.56	15.50	15.56
3444	NYSE	NVG	Thu, May 19, 2016	15.48	15.55	15.41	15.45
3443	NYSE	NVG	Wed, May 18, 2016	15.74	15.74	15.47	15.48
3442	NYSE	NVG	Tue, May 17, 2016	15.75	15.79	15.70	15.71
3441	NYSE	NVG	Mon, May 16, 2016	15.76	15.78	15.72	15.77
3440	NYSE	NVG	Fri, May 13, 2016	15.68	15.77	15.68	15.74
3439	NYSE	NVG	Thu, May 12, 2016	15.73	15.73	15.69	15.71
3438	NYSE	NVG	Wed, May 11, 2016	15.68	15.73	15.65	15.72
3437	NYSE	NVG	Tue, May 10, 2016	15.75	15.80	15.72	15.76
3436	NYSE	NVG	Mon, May 9, 2016	15.65	15.74	15.61	15.74
3435	NYSE	NVG	Fri, May 6, 2016	15.60	15.65	15.59	15.65
3434	NYSE	NVG	Thu, May 5, 2016	15.56	15.60	15.55	15.60
3433	NYSE	NVG	Wed, May 4, 2016	15.55	15.58	15.51	15.55
3432	NYSE	NVG	Tue, May 3, 2016	15.48	15.55	15.45	15.55
3431	NYSE	NVG	Mon, May 2, 2016	15.43	15.50	15.43	15.48
3430	NYSE	NVG	Fri, Apr 29, 2016	15.47	15.50	15.44	15.48
3429	NYSE	NVG	Thu, Apr 28, 2016	15.45	15.48	15.38	15.46
3428	NYSE	NVG	Wed, Apr 27, 2016	15.34	15.44	15.32	15.44
3427	NYSE	NVG	Tue, Apr 26, 2016	15.42	15.42	15.27	15.34
3426	NYSE	NVG	Mon, Apr 25, 2016	15.39	15.40	15.35	15.39
3425	NYSE	NVG	Fri, Apr 22, 2016	15.41	15.43	15.35	15.40
3424	NYSE	NVG	Thu, Apr 21, 2016	15.43	15.45	15.40	15.41
3423	NYSE	NVG	Wed, Apr 20, 2016	15.40	15.44	15.36	15.44
3422	NYSE	NVG	Tue, Apr 19, 2016	15.40	15.41	15.32	15.38
3421	NYSE	NVG	Mon, Apr 18, 2016	15.34	15.42	15.31	15.38
3420	NYSE	NVG	Fri, Apr 15, 2016	15.25	15.33	15.25	15.31
3419	NYSE	NVG	Thu, Apr 14, 2016	15.23	15.26	15.19	15.26
3418	NYSE	NVG	Wed, Apr 13, 2016	15.27	15.27	15.04	15.25
3417	NYSE	NVG	Tue, Apr 12, 2016	15.30	15.38	15.25	15.27
3416	NYSE	NVG	Mon, Apr 11, 2016	15.20	15.30	15.16	15.30
3415	NYSE	NVG	Fri, Apr 8, 2016	15.26	15.28	15.18	15.18
3414	NYSE	NVG	Thu, Apr 7, 2016	15.29	15.30	15.18	15.23
3413	NYSE	NVG	Wed, Apr 6, 2016	15.25	15.29	15.16	15.24
3412	NYSE	NVG	Tue, Apr 5, 2016	15.20	15.20	15.20	15.27
3411	NYSE	NVG	Mon, Apr 4, 2016	15.27	15.27	15.19	15.20
3410	NYSE	NVG	Fri, Apr 1, 2016	15.23	15.26	15.16	15.26
3409	NYSE	NVG	Thu, Mar 31, 2016	15.13	15.18	15.10	15.17
3408	NYSE	NVG	Wed, Mar 30, 2016	15.08	15.10	15.01	15.10
3407	NYSE	NVG	Tue, Mar 29, 2016	15.05	15.12	15.02	15.01
3406	NYSE	NVG	Mon, Mar 28, 2016	15.06	15.06	14.98	15.00
3405	NYSE	NVG	Thu, Mar 24, 2016	15.03	15.05	14.99	15.05
3404	NYSE	NVG	Wed, Mar 23, 2016	15.00	15.03	14.96	15.03
3403	NYSE	NVG	Tue, Mar 22, 2016	14.95	14.99	14.93	14.96
3402	NYSE	NVG	Mon, Mar 21, 2016	14.93	14.94	14.91	14.93
3401	NYSE	NVG	Fri, Mar 18, 2016	14.94	14.94	14.90	14.92
3400	NYSE	NVG	Thu, Mar 17, 2016	14.88	14.91	14.87	14.90
3399	NYSE	NVG	Wed, Mar 16, 2016	14.84	14.87	14.81	14.85
3398	NYSE	NVG	Tue, Mar 15, 2016	14.84	14.84	14.84	14.80
3397	NYSE	NVG	Mon, Mar 14, 2016	14.80	14.84	14.80	14.83
3396	NYSE	NVG	Fri, Mar 11, 2016	14.86	14.86	14.86	14.76
3395	NYSE	NVG	Thu, Mar 10, 2016	14.83	14.83	14.83	14.86
3394	NYSE	NVG	Wed, Mar 9, 2016	14.83	14.86	14.79	14.83
3393	NYSE	NVG	Tue, Mar 8, 2016	14.79	14.84	14.77	14.82
3392	NYSE	NVG	Mon, Mar 7, 2016	14.73	14.75	14.72	14.75
3391	NYSE	NVG	Fri, Mar 4, 2016	14.82	14.83	14.71	14.71
3390	NYSE	NVG	Thu, Mar 3, 2016	14.73	14.73	14.73	14.82
3389	NYSE	NVG	Wed, Mar 2, 2016	14.75	14.76	14.67	14.73
3388	NYSE	NVG	Tue, Mar 1, 2016	14.78	14.78	14.70	14.70
3387	NYSE	NVG	Mon, Feb 29, 2016	14.69	14.77	14.68	14.77
3386	NYSE	NVG	Fri, Feb 26, 2016	14.76	14.76	14.65	14.66
3385	NYSE	NVG	Thu, Feb 25, 2016	14.77	14.78	14.71	14.73
3384	NYSE	NVG	Wed, Feb 24, 2016	14.77	14.78	14.68	14.74
3383	NYSE	NVG	Tue, Feb 23, 2016	14.70	14.79	14.65	14.73
3382	NYSE	NVG	Mon, Feb 22, 2016	14.75	14.78	14.67	14.67
3381	NYSE	NVG	Fri, Feb 19, 2016	14.72	14.72	14.69	14.70
3380	NYSE	NVG	Thu, Feb 18, 2016	14.75	14.75	14.64	14.72
3379	NYSE	NVG	Wed, Feb 17, 2016	14.72	14.75	14.68	14.74
3378	NYSE	NVG	Tue, Feb 16, 2016	14.85	14.85	14.71	14.77
3377	NYSE	NVG	Fri, Feb 12, 2016	14.92	14.92	14.78	14.88
3376	NYSE	NVG	Thu, Feb 11, 2016	14.92	14.95	14.87	14.87
3375	NYSE	NVG	Wed, Feb 10, 2016	14.86	14.91	14.84	14.89
3374	NYSE	NVG	Tue, Feb 9, 2016	14.86	14.94	14.86	14.92
3373	NYSE	NVG	Mon, Feb 8, 2016	14.83	14.88	14.83	14.88
3372	NYSE	NVG	Fri, Feb 5, 2016	14.83	14.84	14.77	14.84
3371	NYSE	NVG	Thu, Feb 4, 2016	14.84	14.84	14.75	14.81
3370	NYSE	NVG	Wed, Feb 3, 2016	14.81	14.82	14.72	14.80
3369	NYSE	NVG	Tue, Feb 2, 2016	14.75	14.85	14.72	14.78
3368	NYSE	NVG	Mon, Feb 1, 2016	14.75	14.75	14.69	14.72
3367	NYSE	NVG	Fri, Jan 29, 2016	14.66	14.72	14.65	14.72
3366	NYSE	NVG	Thu, Jan 28, 2016	14.55	14.64	14.54	14.64
3365	NYSE	NVG	Wed, Jan 27, 2016	14.55	14.62	14.52	14.57
3364	NYSE	NVG	Tue, Jan 26, 2016	14.53	14.59	14.49	14.59
3363	NYSE	NVG	Mon, Jan 25, 2016	14.60	14.61	14.48	14.49
3362	NYSE	NVG	Fri, Jan 22, 2016	14.54	14.64	14.54	14.54
3361	NYSE	NVG	Thu, Jan 21, 2016	14.58	14.59	14.53	14.58
3360	NYSE	NVG	Wed, Jan 20, 2016	14.58	14.60	14.27	14.53
3359	NYSE	NVG	Tue, Jan 19, 2016	14.72	14.72	14.49	14.58
3358	NYSE	NVG	Fri, Jan 15, 2016	14.52	14.62	14.52	14.61
3357	NYSE	NVG	Thu, Jan 14, 2016	14.61	14.67	14.51	14.58
3356	NYSE	NVG	Wed, Jan 13, 2016	14.73	14.73	14.55	14.55
3355	NYSE	NVG	Tue, Jan 12, 2016	14.75	14.78	14.74	14.78
3354	NYSE	NVG	Mon, Jan 11, 2016	14.78	14.78	14.66	14.71
3353	NYSE	NVG	Fri, Jan 8, 2016	14.67	14.82	14.66	14.79
3352	NYSE	NVG	Thu, Jan 7, 2016	14.67	14.69	14.63	14.64
3351	NYSE	NVG	Wed, Jan 6, 2016	14.60	14.68	14.59	14.59
3350	NYSE	NVG	Tue, Jan 5, 2016	14.58	14.62	14.48	14.57
3349	NYSE	NVG	Mon, Jan 4, 2016	14.41	14.53	14.40	14.53
3348	NYSE	NVG	Thu, Dec 31, 2015	14.48	14.56	14.37	14.48
3347	NYSE	NVG	Wed, Dec 30, 2015	14.36	14.42	14.32	14.42
3346	NYSE	NVG	Tue, Dec 29, 2015	14.38	14.39	14.26	14.34
3345	NYSE	NVG	Mon, Dec 28, 2015	14.35	14.39	14.33	14.39
3344	NYSE	NVG	Thu, Dec 24, 2015	14.33	14.40	14.33	14.40
3343	NYSE	NVG	Wed, Dec 23, 2015	14.23	14.33	14.23	14.33
3342	NYSE	NVG	Tue, Dec 22, 2015	14.27	14.27	14.18	14.18
3341	NYSE	NVG	Mon, Dec 21, 2015	14.29	14.29	14.23	14.23
3340	NYSE	NVG	Fri, Dec 18, 2015	14.23	14.33	14.21	14.23
3339	NYSE	NVG	Thu, Dec 17, 2015	14.06	14.19	14.06	14.19
3338	NYSE	NVG	Wed, Dec 16, 2015	14.06	14.08	14.00	14.06
3337	NYSE	NVG	Tue, Dec 15, 2015	13.96	14.06	13.96	14.06
3336	NYSE	NVG	Mon, Dec 14, 2015	14.12	14.12	13.96	14.05
3335	NYSE	NVG	Fri, Dec 11, 2015	14.09	14.12	14.04	14.11
3334	NYSE	NVG	Thu, Dec 10, 2015	14.16	14.16	14.12	14.15
3333	NYSE	NVG	Wed, Dec 9, 2015	14.12	14.14	14.08	14.14
3332	NYSE	NVG	Tue, Dec 8, 2015	14.05	14.12	14.03	14.07
3331	NYSE	NVG	Mon, Dec 7, 2015	14.10	14.10	14.02	14.02
3330	NYSE	NVG	Fri, Dec 4, 2015	13.99	14.10	13.97	14.10
3329	NYSE	NVG	Thu, Dec 3, 2015	14.09	14.09	13.95	14.03
3328	NYSE	NVG	Wed, Dec 2, 2015	14.11	14.11	14.06	14.08
3327	NYSE	NVG	Tue, Dec 1, 2015	14.04	14.10	14.04	14.06
3326	NYSE	NVG	Mon, Nov 30, 2015	14.05	14.05	13.98	14.00
3325	NYSE	NVG	Fri, Nov 27, 2015	14.03	14.04	13.99	14.02
3324	NYSE	NVG	Wed, Nov 25, 2015	13.98	14.01	13.96	13.99
3323	NYSE	NVG	Tue, Nov 24, 2015	13.97	13.97	13.92	13.93
3322	NYSE	NVG	Mon, Nov 23, 2015	13.92	13.97	13.91	13.97
3321	NYSE	NVG	Fri, Nov 20, 2015	13.88	13.90	13.86	13.89
3320	NYSE	NVG	Thu, Nov 19, 2015	13.88	13.88	13.81	13.83
3319	NYSE	NVG	Wed, Nov 18, 2015	13.85	13.89	13.75	13.86
3318	NYSE	NVG	Tue, Nov 17, 2015	13.90	13.90	13.83	13.84
3317	NYSE	NVG	Mon, Nov 16, 2015	13.91	13.92	13.87	13.91
3316	NYSE	NVG	Fri, Nov 13, 2015	13.87	13.97	13.79	13.86
3315	NYSE	NVG	Thu, Nov 12, 2015	13.77	13.88	13.77	13.85
3314	NYSE	NVG	Wed, Nov 11, 2015	13.86	13.86	13.76	13.76
3313	NYSE	NVG	Tue, Nov 10, 2015	13.77	13.85	13.75	13.85
3312	NYSE	NVG	Mon, Nov 9, 2015	13.96	13.96	13.83	13.93
3311	NYSE	NVG	Fri, Nov 6, 2015	14.08	14.08	13.94	14.00
3310	NYSE	NVG	Thu, Nov 5, 2015	14.08	14.14	14.08	14.14
3309	NYSE	NVG	Wed, Nov 4, 2015	14.11	14.17	14.08	14.11
3308	NYSE	NVG	Tue, Nov 3, 2015	14.14	14.15	14.09	14.11
3307	NYSE	NVG	Mon, Nov 2, 2015	14.09	14.12	14.06	14.12
3306	NYSE	NVG	Fri, Oct 30, 2015	14.07	14.08	14.03	14.05
3305	NYSE	NVG	Thu, Oct 29, 2015	14.08	14.11	14.05	14.09
3304	NYSE	NVG	Wed, Oct 28, 2015	14.02	14.14	13.98	14.13
3303	NYSE	NVG	Tue, Oct 27, 2015	14.05	14.09	14.03	14.03
3302	NYSE	NVG	Mon, Oct 26, 2015	14.03	14.06	14.03	14.05
3301	NYSE	NVG	Fri, Oct 23, 2015	14.08	14.09	14.02	14.03
3300	NYSE	NVG	Thu, Oct 22, 2015	14.04	14.09	14.03	14.09
3299	NYSE	NVG	Wed, Oct 21, 2015	14.00	14.04	13.99	14.04
3298	NYSE	NVG	Tue, Oct 20, 2015	13.96	14.01	13.96	13.99
3297	NYSE	NVG	Mon, Oct 19, 2015	13.99	14.02	13.97	13.97
3296	NYSE	NVG	Fri, Oct 16, 2015	13.99	14.00	13.95	14.00
3295	NYSE	NVG	Thu, Oct 15, 2015	13.97	14.00	13.96	13.96
3294	NYSE	NVG	Wed, Oct 14, 2015	13.93	14.00	13.91	13.97
3293	NYSE	NVG	Tue, Oct 13, 2015	13.87	13.95	13.87	13.95
3292	NYSE	NVG	Mon, Oct 12, 2015	13.95	13.98	13.95	13.97
3291	NYSE	NVG	Fri, Oct 9, 2015	13.92	13.98	13.92	13.95
3290	NYSE	NVG	Thu, Oct 8, 2015	13.92	13.98	13.92	13.98
3289	NYSE	NVG	Wed, Oct 7, 2015	13.88	13.95	13.88	13.95
3288	NYSE	NVG	Tue, Oct 6, 2015	13.93	13.95	13.89	13.95
3287	NYSE	NVG	Mon, Oct 5, 2015	13.89	13.92	13.86	13.92
3286	NYSE	NVG	Fri, Oct 2, 2015	13.93	13.99	13.93	13.98
3285	NYSE	NVG	Thu, Oct 1, 2015	13.95	13.96	13.87	13.87
3284	NYSE	NVG	Wed, Sep 30, 2015	13.83	13.93	13.83	13.93
3283	NYSE	NVG	Tue, Sep 29, 2015	13.74	13.87	13.74	13.85
3282	NYSE	NVG	Mon, Sep 28, 2015	13.76	13.77	13.74	13.77
3281	NYSE	NVG	Fri, Sep 25, 2015	13.72	13.74	13.72	13.73
3280	NYSE	NVG	Thu, Sep 24, 2015	13.71	13.74	13.70	13.72
3279	NYSE	NVG	Wed, Sep 23, 2015	13.70	13.74	13.70	13.74
3278	NYSE	NVG	Tue, Sep 22, 2015	13.67	13.72	13.66	13.72
3277	NYSE	NVG	Mon, Sep 21, 2015	13.65	13.67	13.64	13.65
3276	NYSE	NVG	Fri, Sep 18, 2015	13.67	13.75	13.62	13.67
3275	NYSE	NVG	Thu, Sep 17, 2015	13.56	13.72	13.52	13.72
3274	NYSE	NVG	Wed, Sep 16, 2015	13.52	13.58	13.52	13.56
3273	NYSE	NVG	Tue, Sep 15, 2015	13.60	13.60	13.52	13.57
3272	NYSE	NVG	Mon, Sep 14, 2015	13.68	13.69	13.62	13.62
3271	NYSE	NVG	Fri, Sep 11, 2015	13.67	13.69	13.66	13.67
3270	NYSE	NVG	Thu, Sep 10, 2015	13.78	13.82	13.73	13.73
3269	NYSE	NVG	Wed, Sep 9, 2015	13.80	13.85	13.79	13.84
3268	NYSE	NVG	Tue, Sep 8, 2015	13.83	13.85	13.82	13.83
3267	NYSE	NVG	Fri, Sep 4, 2015	13.75	13.87	13.73	13.86
3266	NYSE	NVG	Thu, Sep 3, 2015	13.73	13.79	13.73	13.79
3265	NYSE	NVG	Wed, Sep 2, 2015	13.72	13.73	13.68	13.73
3264	NYSE	NVG	Tue, Sep 1, 2015	13.77	13.77	13.69	13.76
3263	NYSE	NVG	Mon, Aug 31, 2015	13.70	13.73	13.70	13.72
3262	NYSE	NVG	Fri, Aug 28, 2015	13.69	13.69	13.63	13.68
3261	NYSE	NVG	Thu, Aug 27, 2015	13.63	13.70	13.59	13.66
3260	NYSE	NVG	Wed, Aug 26, 2015	13.60	13.67	13.50	13.66
3259	NYSE	NVG	Tue, Aug 25, 2015	13.63	13.70	13.51	13.60
3258	NYSE	NVG	Mon, Aug 24, 2015	13.63	13.69	13.55	13.67
3257	NYSE	NVG	Fri, Aug 21, 2015	13.79	13.81	13.73	13.77
3256	NYSE	NVG	Thu, Aug 20, 2015	13.83	13.85	13.74	13.75
3255	NYSE	NVG	Wed, Aug 19, 2015	13.85	13.85	13.79	13.83
3254	NYSE	NVG	Tue, Aug 18, 2015	13.84	13.85	13.79	13.85
3253	NYSE	NVG	Mon, Aug 17, 2015	13.84	13.88	13.82	13.82
3252	NYSE	NVG	Fri, Aug 14, 2015	13.81	13.86	13.81	13.84
3251	NYSE	NVG	Thu, Aug 13, 2015	13.83	13.86	13.82	13.82
3250	NYSE	NVG	Wed, Aug 12, 2015	13.88	13.89	13.86	13.86
3249	NYSE	NVG	Tue, Aug 11, 2015	13.81	13.92	13.81	13.92
3248	NYSE	NVG	Mon, Aug 10, 2015	13.83	13.83	13.70	13.83
3247	NYSE	NVG	Fri, Aug 7, 2015	13.74	13.82	13.74	13.82
3246	NYSE	NVG	Thu, Aug 6, 2015	13.76	13.77	13.73	13.76
3245	NYSE	NVG	Wed, Aug 5, 2015	13.87	13.87	13.75	13.81
3244	NYSE	NVG	Tue, Aug 4, 2015	13.93	13.93	13.82	13.88
3243	NYSE	NVG	Mon, Aug 3, 2015	13.94	13.94	13.86	13.86
3242	NYSE	NVG	Fri, Jul 31, 2015	13.82	13.91	13.82	13.90
3241	NYSE	NVG	Thu, Jul 30, 2015	13.78	13.84	13.78	13.82
3240	NYSE	NVG	Wed, Jul 29, 2015	13.78	13.79	13.71	13.79
3239	NYSE	NVG	Tue, Jul 28, 2015	13.71	13.77	13.69	13.75
3238	NYSE	NVG	Mon, Jul 27, 2015	13.68	13.73	13.68	13.72
3237	NYSE	NVG	Fri, Jul 24, 2015	13.69	13.69	13.65	13.68
3236	NYSE	NVG	Thu, Jul 23, 2015	13.62	13.68	13.62	13.68
3235	NYSE	NVG	Wed, Jul 22, 2015	13.67	13.68	13.63	13.65
3234	NYSE	NVG	Tue, Jul 21, 2015	13.65	13.67	13.59	13.65
3233	NYSE	NVG	Mon, Jul 20, 2015	13.66	13.68	13.64	13.66
3232	NYSE	NVG	Fri, Jul 17, 2015	13.66	13.67	13.63	13.66
3231	NYSE	NVG	Thu, Jul 16, 2015	13.64	13.65	13.60	13.65
3230	NYSE	NVG	Wed, Jul 15, 2015	13.60	13.64	13.58	13.64
3229	NYSE	NVG	Tue, Jul 14, 2015	13.57	13.60	13.50	13.60
3228	NYSE	NVG	Mon, Jul 13, 2015	13.59	13.60	13.54	13.60
3227	NYSE	NVG	Fri, Jul 10, 2015	13.65	13.65	13.56	13.64
3226	NYSE	NVG	Thu, Jul 9, 2015	13.65	13.67	13.64	13.67
3225	NYSE	NVG	Wed, Jul 8, 2015	13.69	13.73	13.64	13.64
3224	NYSE	NVG	Tue, Jul 7, 2015	13.64	13.72	13.64	13.64
3223	NYSE	NVG	Mon, Jul 6, 2015	13.58	13.63	13.57	13.63
3222	NYSE	NVG	Thu, Jul 2, 2015	13.60	13.63	13.57	13.58
3221	NYSE	NVG	Wed, Jul 1, 2015	13.63	13.66	13.54	13.57
3220	NYSE	NVG	Tue, Jun 30, 2015	13.60	13.63	13.56	13.56
3219	NYSE	NVG	Mon, Jun 29, 2015	13.64	13.68	13.60	13.62
3218	NYSE	NVG	Fri, Jun 26, 2015	13.70	13.72	13.64	13.67
3217	NYSE	NVG	Thu, Jun 25, 2015	13.77	13.77	13.70	13.70
3216	NYSE	NVG	Wed, Jun 24, 2015	13.78	13.79	13.74	13.79
3215	NYSE	NVG	Tue, Jun 23, 2015	13.72	13.79	13.72	13.78
3214	NYSE	NVG	Mon, Jun 22, 2015	13.79	13.82	13.71	13.78
3213	NYSE	NVG	Fri, Jun 19, 2015	13.80	13.83	13.76	13.79
3212	NYSE	NVG	Thu, Jun 18, 2015	13.80	13.80	13.73	13.80
3211	NYSE	NVG	Wed, Jun 17, 2015	13.79	13.80	13.75	13.80
3210	NYSE	NVG	Tue, Jun 16, 2015	13.76	13.80	13.76	13.78
3209	NYSE	NVG	Mon, Jun 15, 2015	13.75	13.82	13.75	13.76
3208	NYSE	NVG	Fri, Jun 12, 2015	13.74	13.77	13.68	13.73
3207	NYSE	NVG	Thu, Jun 11, 2015	13.63	13.72	13.63	13.70
3206	NYSE	NVG	Wed, Jun 10, 2015	13.60	13.76	13.60	13.70
3205	NYSE	NVG	Tue, Jun 9, 2015	13.75	13.81	13.67	13.67
3204	NYSE	NVG	Mon, Jun 8, 2015	13.80	13.82	13.73	13.78
3203	NYSE	NVG	Fri, Jun 5, 2015	13.87	13.87	13.79	13.86
3202	NYSE	NVG	Thu, Jun 4, 2015	13.85	13.90	13.84	13.90
3201	NYSE	NVG	Wed, Jun 3, 2015	13.87	13.91	13.85	13.86
3200	NYSE	NVG	Tue, Jun 2, 2015	13.90	13.91	13.83	13.88
3199	NYSE	NVG	Mon, Jun 1, 2015	13.89	13.92	13.87	13.87
3198	NYSE	NVG	Fri, May 29, 2015	13.83	13.90	13.83	13.89
3197	NYSE	NVG	Thu, May 28, 2015	13.88	13.88	13.86	13.86
3196	NYSE	NVG	Wed, May 27, 2015	13.84	13.90	13.80	13.86
3195	NYSE	NVG	Tue, May 26, 2015	13.82	13.85	13.82	13.82
3194	NYSE	NVG	Fri, May 22, 2015	13.89	13.89	13.76	13.81
3193	NYSE	NVG	Thu, May 21, 2015	13.91	13.93	13.89	13.91
3192	NYSE	NVG	Wed, May 20, 2015	13.93	13.96	13.86	13.90
3191	NYSE	NVG	Tue, May 19, 2015	13.92	13.93	13.89	13.89
3190	NYSE	NVG	Mon, May 18, 2015	14.00	14.00	13.91	13.94
3189	NYSE	NVG	Fri, May 15, 2015	13.92	14.05	13.92	14.00
3188	NYSE	NVG	Thu, May 14, 2015	13.93	13.99	13.90	13.94
3187	NYSE	NVG	Wed, May 13, 2015	13.96	13.99	13.91	13.99
3186	NYSE	NVG	Tue, May 12, 2015	13.99	14.06	13.99	14.01
3185	NYSE	NVG	Mon, May 11, 2015	14.07	14.11	14.00	14.05
3184	NYSE	NVG	Fri, May 8, 2015	14.15	14.20	14.09	14.10
3183	NYSE	NVG	Thu, May 7, 2015	14.08	14.12	14.05	14.12
3182	NYSE	NVG	Wed, May 6, 2015	14.18	14.19	14.06	14.09
3181	NYSE	NVG	Tue, May 5, 2015	14.21	14.23	14.17	14.20
3180	NYSE	NVG	Mon, May 4, 2015	14.30	14.30	14.21	14.21
3179	NYSE	NVG	Fri, May 1, 2015	14.39	14.39	14.23	14.25
3178	NYSE	NVG	Thu, Apr 30, 2015	14.40	14.40	14.32	14.37
3177	NYSE	NVG	Wed, Apr 29, 2015	14.35	14.42	14.34	14.42
3176	NYSE	NVG	Tue, Apr 28, 2015	14.41	14.45	14.38	14.45
3175	NYSE	NVG	Mon, Apr 27, 2015	14.48	14.49	14.38	14.43
3174	NYSE	NVG	Fri, Apr 24, 2015	14.42	14.47	14.41	14.45
3173	NYSE	NVG	Thu, Apr 23, 2015	14.41	14.47	14.41	14.47
3172	NYSE	NVG	Wed, Apr 22, 2015	14.46	14.53	14.42	14.42
3171	NYSE	NVG	Tue, Apr 21, 2015	14.47	14.50	14.46	14.48
3170	NYSE	NVG	Mon, Apr 20, 2015	14.53	14.54	14.48	14.48
3169	NYSE	NVG	Fri, Apr 17, 2015	14.47	14.53	14.46	14.52
3168	NYSE	NVG	Thu, Apr 16, 2015	14.47	14.48	14.45	14.45
3167	NYSE	NVG	Wed, Apr 15, 2015	14.45	14.51	14.45	14.47
3166	NYSE	NVG	Tue, Apr 14, 2015	14.42	14.52	14.42	14.47
3165	NYSE	NVG	Mon, Apr 13, 2015	14.43	14.43	14.39	14.42
3164	NYSE	NVG	Fri, Apr 10, 2015	14.51	14.53	14.45	14.53
3163	NYSE	NVG	Thu, Apr 9, 2015	14.54	14.55	14.44	14.50
3162	NYSE	NVG	Wed, Apr 8, 2015	14.54	14.55	14.50	14.51
3161	NYSE	NVG	Tue, Apr 7, 2015	14.52	14.53	14.50	14.50
3160	NYSE	NVG	Mon, Apr 6, 2015	14.52	14.53	14.51	14.52
3159	NYSE	NVG	Thu, Apr 2, 2015	14.47	14.47	14.41	14.47
3158	NYSE	NVG	Wed, Apr 1, 2015	14.51	14.53	14.44	14.44
3157	NYSE	NVG	Tue, Mar 31, 2015	14.40	14.51	14.38	14.51
3156	NYSE	NVG	Mon, Mar 30, 2015	14.40	14.42	14.38	14.42
3155	NYSE	NVG	Fri, Mar 27, 2015	14.42	14.45	14.40	14.42
3154	NYSE	NVG	Thu, Mar 26, 2015	14.41	14.45	14.39	14.42
3153	NYSE	NVG	Wed, Mar 25, 2015	14.43	14.47	14.40	14.45
3152	NYSE	NVG	Tue, Mar 24, 2015	14.38	14.45	14.38	14.45
3151	NYSE	NVG	Mon, Mar 23, 2015	14.41	14.47	14.38	14.38
3150	NYSE	NVG	Fri, Mar 20, 2015	14.33	14.42	14.33	14.38
3149	NYSE	NVG	Thu, Mar 19, 2015	14.35	14.38	14.28	14.36
3148	NYSE	NVG	Wed, Mar 18, 2015	14.23	14.39	14.21	14.39
3147	NYSE	NVG	Tue, Mar 17, 2015	14.31	14.31	14.18	14.18
3146	NYSE	NVG	Mon, Mar 16, 2015	14.31	14.33	14.25	14.28
3145	NYSE	NVG	Fri, Mar 13, 2015	14.26	14.32	14.25	14.32
3144	NYSE	NVG	Thu, Mar 12, 2015	14.30	14.32	14.24	14.29
3143	NYSE	NVG	Wed, Mar 11, 2015	14.27	14.32	14.25	14.26
3142	NYSE	NVG	Tue, Mar 10, 2015	14.34	14.36	14.32	14.27
3141	NYSE	NVG	Mon, Mar 9, 2015	14.25	14.35	14.25	14.35
3140	NYSE	NVG	Fri, Mar 6, 2015	14.35	14.39	14.25	14.27
3139	NYSE	NVG	Thu, Mar 5, 2015	14.41	14.43	14.40	14.41
3138	NYSE	NVG	Wed, Mar 4, 2015	14.40	14.43	14.40	14.42
3137	NYSE	NVG	Tue, Mar 3, 2015	14.38	14.40	14.34	14.38
3136	NYSE	NVG	Mon, Mar 2, 2015	14.45	14.45	14.34	14.38
3135	NYSE	NVG	Fri, Feb 27, 2015	14.36	14.45	14.36	14.43
3134	NYSE	NVG	Thu, Feb 26, 2015	14.41	14.43	14.31	14.37
3133	NYSE	NVG	Wed, Feb 25, 2015	14.39	14.45	14.39	14.40
3132	NYSE	NVG	Tue, Feb 24, 2015	14.34	14.38	14.33	14.35
3131	NYSE	NVG	Mon, Feb 23, 2015	14.37	14.39	14.35	14.37
3130	NYSE	NVG	Fri, Feb 20, 2015	14.27	14.37	14.27	14.37
3129	NYSE	NVG	Thu, Feb 19, 2015	14.20	14.34	14.20	14.25
3128	NYSE	NVG	Wed, Feb 18, 2015	14.10	14.26	14.10	14.24
3127	NYSE	NVG	Tue, Feb 17, 2015	14.32	14.33	14.10	14.10
3126	NYSE	NVG	Fri, Feb 13, 2015	14.42	14.42	14.32	14.32
3125	NYSE	NVG	Thu, Feb 12, 2015	14.37	14.43	14.37	14.41
3124	NYSE	NVG	Wed, Feb 11, 2015	14.45	14.49	14.38	14.43
3123	NYSE	NVG	Tue, Feb 10, 2015	14.54	14.58	14.51	14.51
3122	NYSE	NVG	Mon, Feb 9, 2015	14.61	14.67	14.58	14.58
3121	NYSE	NVG	Fri, Feb 6, 2015	14.70	14.72	14.59	14.59
3120	NYSE	NVG	Thu, Feb 5, 2015	14.76	14.78	14.73	14.75
3119	NYSE	NVG	Wed, Feb 4, 2015	14.75	14.80	14.70	14.78
3118	NYSE	NVG	Tue, Feb 3, 2015	14.82	14.83	14.75	14.77
3117	NYSE	NVG	Mon, Feb 2, 2015	14.75	14.82	14.73	14.82
3116	NYSE	NVG	Fri, Jan 30, 2015	14.70	14.77	14.68	14.76
3115	NYSE	NVG	Thu, Jan 29, 2015	14.64	14.71	14.63	14.69
3114	NYSE	NVG	Wed, Jan 28, 2015	14.54	14.68	14.54	14.64
3113	NYSE	NVG	Tue, Jan 27, 2015	14.51	14.58	14.51	14.53
3112	NYSE	NVG	Mon, Jan 26, 2015	14.45	14.52	14.45	14.49
3111	NYSE	NVG	Fri, Jan 23, 2015	14.43	14.47	14.43	14.47
3110	NYSE	NVG	Thu, Jan 22, 2015	14.45	14.47	14.41	14.43
3109	NYSE	NVG	Wed, Jan 21, 2015	14.50	14.50	14.44	14.44
3108	NYSE	NVG	Tue, Jan 20, 2015	14.52	14.55	14.50	14.52
3107	NYSE	NVG	Fri, Jan 16, 2015	14.52	14.54	14.47	14.50
3106	NYSE	NVG	Thu, Jan 15, 2015	14.42	14.54	14.42	14.48
3105	NYSE	NVG	Wed, Jan 14, 2015	14.42	14.45	14.41	14.45
3104	NYSE	NVG	Tue, Jan 13, 2015	14.38	14.41	14.37	14.41
3103	NYSE	NVG	Mon, Jan 12, 2015	14.36	14.43	14.36	14.41
3102	NYSE	NVG	Fri, Jan 9, 2015	14.32	14.38	14.32	14.38
3101	NYSE	NVG	Thu, Jan 8, 2015	14.33	14.40	14.32	14.33
3100	NYSE	NVG	Wed, Jan 7, 2015	14.32	14.39	14.32	14.38
3099	NYSE	NVG	Tue, Jan 6, 2015	14.25	14.30	14.24	14.28
3098	NYSE	NVG	Mon, Jan 5, 2015	14.19	14.23	14.16	14.23
3097	NYSE	NVG	Fri, Jan 2, 2015	14.10	14.17	14.09	14.17
3096	NYSE	NVG	Wed, Dec 31, 2014	14.14	14.18	14.11	14.11
3095	NYSE	NVG	Tue, Dec 30, 2014	14.10	14.11	14.08	14.10
3094	NYSE	NVG	Mon, Dec 29, 2014	14.09	14.13	14.07	14.11
3093	NYSE	NVG	Fri, Dec 26, 2014	14.08	14.10	14.07	14.10
3092	NYSE	NVG	Wed, Dec 24, 2014	14.05	14.11	14.03	14.11
3091	NYSE	NVG	Tue, Dec 23, 2014	14.07	14.11	14.03	14.08
3090	NYSE	NVG	Mon, Dec 22, 2014	14.10	14.11	14.05	14.06
3089	NYSE	NVG	Fri, Dec 19, 2014	14.13	14.15	14.10	14.11
3088	NYSE	NVG	Thu, Dec 18, 2014	14.13	14.16	14.13	14.14
3087	NYSE	NVG	Wed, Dec 17, 2014	14.17	14.17	14.12	14.17
3086	NYSE	NVG	Tue, Dec 16, 2014	14.17	14.18	14.11	14.14
3085	NYSE	NVG	Mon, Dec 15, 2014	14.15	14.21	14.13	14.16
3084	NYSE	NVG	Fri, Dec 12, 2014	14.15	14.18	14.12	14.16
3083	NYSE	NVG	Thu, Dec 11, 2014	14.23	14.23	14.12	14.12
3082	NYSE	NVG	Wed, Dec 10, 2014	14.22	14.29	14.22	14.29
3081	NYSE	NVG	Tue, Dec 9, 2014	14.17	14.24	14.16	14.24
3080	NYSE	NVG	Mon, Dec 8, 2014	14.14	14.18	14.11	14.15
3079	NYSE	NVG	Fri, Dec 5, 2014	14.18	14.20	14.13	14.16
3078	NYSE	NVG	Thu, Dec 4, 2014	14.14	14.20	14.14	14.20
3077	NYSE	NVG	Wed, Dec 3, 2014	14.07	14.16	14.07	14.15
3076	NYSE	NVG	Tue, Dec 2, 2014	14.07	14.09	14.05	14.07
3075	NYSE	NVG	Mon, Dec 1, 2014	14.07	14.08	14.03	14.06
3074	NYSE	NVG	Fri, Nov 28, 2014	14.00	14.04	13.99	14.04
3073	NYSE	NVG	Wed, Nov 26, 2014	13.96	14.02	13.96	14.00
3072	NYSE	NVG	Tue, Nov 25, 2014	13.94	13.99	13.94	13.97
3071	NYSE	NVG	Mon, Nov 24, 2014	13.97	14.00	13.96	13.96
3070	NYSE	NVG	Fri, Nov 21, 2014	13.97	14.01	13.95	13.97
3069	NYSE	NVG	Thu, Nov 20, 2014	13.94	14.00	13.94	13.96
3068	NYSE	NVG	Wed, Nov 19, 2014	13.90	13.95	13.90	13.95
3067	NYSE	NVG	Tue, Nov 18, 2014	13.96	13.98	13.91	13.91
3066	NYSE	NVG	Mon, Nov 17, 2014	14.01	14.03	13.93	13.93
3065	NYSE	NVG	Fri, Nov 14, 2014	14.04	14.04	14.01	14.02
3064	NYSE	NVG	Thu, Nov 13, 2014	13.99	14.00	13.99	14.02
3063	NYSE	NVG	Wed, Nov 12, 2014	14.01	14.04	13.98	14.01
3062	NYSE	NVG	Tue, Nov 11, 2014	14.06	14.10	14.05	14.08
3061	NYSE	NVG	Mon, Nov 10, 2014	14.10	14.10	14.06	14.08
3060	NYSE	NVG	Fri, Nov 7, 2014	14.08	14.14	14.08	14.10
3059	NYSE	NVG	Thu, Nov 6, 2014	14.11	14.15	14.10	14.11
3058	NYSE	NVG	Wed, Nov 5, 2014	14.14	14.14	14.10	14.10
3057	NYSE	NVG	Tue, Nov 4, 2014	14.17	14.17	14.11	14.12
3056	NYSE	NVG	Mon, Nov 3, 2014	14.14	14.16	14.11	14.15
3055	NYSE	NVG	Fri, Oct 31, 2014	14.14	14.17	14.13	14.14
3054	NYSE	NVG	Thu, Oct 30, 2014	14.15	14.19	14.15	14.17
3053	NYSE	NVG	Wed, Oct 29, 2014	14.15	14.21	14.14	14.14
3052	NYSE	NVG	Tue, Oct 28, 2014	14.15	14.19	14.14	14.14
3051	NYSE	NVG	Mon, Oct 27, 2014	14.16	14.20	14.15	14.15
3050	NYSE	NVG	Fri, Oct 24, 2014	14.16	14.20	14.14	14.18
3049	NYSE	NVG	Thu, Oct 23, 2014	14.15	14.21	14.14	14.15
3048	NYSE	NVG	Wed, Oct 22, 2014	14.24	14.24	14.13	14.18
3047	NYSE	NVG	Tue, Oct 21, 2014	14.26	14.26	14.18	14.19
3046	NYSE	NVG	Mon, Oct 20, 2014	14.27	14.29	14.24	14.26
3045	NYSE	NVG	Fri, Oct 17, 2014	14.22	14.31	14.22	14.30
3044	NYSE	NVG	Thu, Oct 16, 2014	14.16	14.26	14.10	14.26
3043	NYSE	NVG	Wed, Oct 15, 2014	14.01	14.18	14.01	14.09
3042	NYSE	NVG	Tue, Oct 14, 2014	14.03	14.09	14.02	14.03
3041	NYSE	NVG	Mon, Oct 13, 2014	14.07	14.07	14.01	14.01
3040	NYSE	NVG	Fri, Oct 10, 2014	14.06	14.13	14.05	14.07
3039	NYSE	NVG	Thu, Oct 9, 2014	14.22	14.23	14.11	14.12
3038	NYSE	NVG	Wed, Oct 8, 2014	14.16	14.22	14.16	14.20
3037	NYSE	NVG	Tue, Oct 7, 2014	14.12	14.17	14.12	14.17
3036	NYSE	NVG	Mon, Oct 6, 2014	14.09	14.12	14.07	14.11
3035	NYSE	NVG	Fri, Oct 3, 2014	14.12	14.15	14.05	14.05
3034	NYSE	NVG	Thu, Oct 2, 2014	14.12	14.15	14.10	14.12
3033	NYSE	NVG	Wed, Oct 1, 2014	14.17	14.17	14.12	14.14
3032	NYSE	NVG	Tue, Sep 30, 2014	14.10	14.17	14.10	14.11
3031	NYSE	NVG	Mon, Sep 29, 2014	14.23	14.27	14.10	14.12
3030	NYSE	NVG	Fri, Sep 26, 2014	14.25	14.25	14.15	14.20
3029	NYSE	NVG	Thu, Sep 25, 2014	14.20	14.25	14.20	14.24
3028	NYSE	NVG	Wed, Sep 24, 2014	14.23	14.23	14.22	14.22
3027	NYSE	NVG	Tue, Sep 23, 2014	14.23	14.26	14.22	14.25
3026	NYSE	NVG	Mon, Sep 22, 2014	14.43	14.43	14.21	14.23
3025	NYSE	NVG	Fri, Sep 19, 2014	14.40	14.51	14.40	14.49
3024	NYSE	NVG	Thu, Sep 18, 2014	14.47	14.49	14.41	14.41
3023	NYSE	NVG	Wed, Sep 17, 2014	14.45	14.51	14.45	14.49
3022	NYSE	NVG	Tue, Sep 16, 2014	14.45	14.47	14.41	14.46
3021	NYSE	NVG	Mon, Sep 15, 2014	14.50	14.50	14.46	14.47
3020	NYSE	NVG	Fri, Sep 12, 2014	14.55	14.55	14.45	14.47
3019	NYSE	NVG	Thu, Sep 11, 2014	14.58	14.61	14.56	14.56
3018	NYSE	NVG	Wed, Sep 10, 2014	14.63	14.63	14.60	14.63
3017	NYSE	NVG	Tue, Sep 9, 2014	14.59	14.64	14.54	14.64
3016	NYSE	NVG	Mon, Sep 8, 2014	14.59	14.60	14.57	14.60
3015	NYSE	NVG	Fri, Sep 5, 2014	14.55	14.62	14.55	14.60
3014	NYSE	NVG	Thu, Sep 4, 2014	14.56	14.60	14.56	14.58
3013	NYSE	NVG	Wed, Sep 3, 2014	14.56	14.60	14.56	14.57
3012	NYSE	NVG	Tue, Sep 2, 2014	14.62	14.63	14.54	14.56
3011	NYSE	NVG	Fri, Aug 29, 2014	14.54	14.62	14.54	14.62
3010	NYSE	NVG	Thu, Aug 28, 2014	14.50	14.57	14.49	14.55
3009	NYSE	NVG	Wed, Aug 27, 2014	14.48	14.50	14.47	14.48
3008	NYSE	NVG	Tue, Aug 26, 2014	14.45	14.52	14.45	14.49
3007	NYSE	NVG	Mon, Aug 25, 2014	14.44	14.47	14.43	14.44
3006	NYSE	NVG	Fri, Aug 22, 2014	14.45	14.48	14.43	14.46
3005	NYSE	NVG	Thu, Aug 21, 2014	14.46	14.50	14.45	14.47
3004	NYSE	NVG	Wed, Aug 20, 2014	14.48	14.48	14.45	14.45
3003	NYSE	NVG	Tue, Aug 19, 2014	14.47	14.49	14.45	14.47
3002	NYSE	NVG	Mon, Aug 18, 2014	14.45	14.50	14.45	14.45
3001	NYSE	NVG	Fri, Aug 15, 2014	14.44	14.47	14.44	14.45
3000	NYSE	NVG	Thu, Aug 14, 2014	14.43	14.46	14.39	14.44
2999	NYSE	NVG	Wed, Aug 13, 2014	14.46	14.46	14.43	14.44
2998	NYSE	NVG	Tue, Aug 12, 2014	14.46	14.50	14.41	14.49
2997	NYSE	NVG	Mon, Aug 11, 2014	14.37	14.50	14.37	14.48
2996	NYSE	NVG	Fri, Aug 8, 2014	14.29	14.39	14.29	14.39
2995	NYSE	NVG	Thu, Aug 7, 2014	14.19	14.33	14.19	14.31
2994	NYSE	NVG	Wed, Aug 6, 2014	14.23	14.26	14.21	14.23
2993	NYSE	NVG	Tue, Aug 5, 2014	14.16	14.22	14.16	14.22
2992	NYSE	NVG	Mon, Aug 4, 2014	14.26	14.29	14.18	14.18
2991	NYSE	NVG	Fri, Aug 1, 2014	14.31	14.31	14.25	14.26
2990	NYSE	NVG	Thu, Jul 31, 2014	14.25	14.30	14.15	14.23
2989	NYSE	NVG	Wed, Jul 30, 2014	14.31	14.40	14.29	14.29
2988	NYSE	NVG	Tue, Jul 29, 2014	14.43	14.43	14.37	14.39
2987	NYSE	NVG	Mon, Jul 28, 2014	14.35	14.44	14.35	14.39
2986	NYSE	NVG	Fri, Jul 25, 2014	14.39	14.44	14.35	14.35
2985	NYSE	NVG	Thu, Jul 24, 2014	14.34	14.38	14.32	14.35
2984	NYSE	NVG	Wed, Jul 23, 2014	14.39	14.50	14.35	14.36
2983	NYSE	NVG	Tue, Jul 22, 2014	14.43	14.43	14.34	14.39
2982	NYSE	NVG	Mon, Jul 21, 2014	14.40	14.48	14.35	14.44
2981	NYSE	NVG	Fri, Jul 18, 2014	14.20	14.39	14.17	14.33
2980	NYSE	NVG	Thu, Jul 17, 2014	13.97	14.26	13.97	14.25
2979	NYSE	NVG	Wed, Jul 16, 2014	13.84	13.93	13.84	13.87
2978	NYSE	NVG	Tue, Jul 15, 2014	13.86	13.91	13.85	13.85
2977	NYSE	NVG	Mon, Jul 14, 2014	13.95	13.97	13.86	13.86
2976	NYSE	NVG	Fri, Jul 11, 2014	13.87	13.95	13.87	13.92
2975	NYSE	NVG	Thu, Jul 10, 2014	14.04	14.04	13.92	13.95
2974	NYSE	NVG	Wed, Jul 9, 2014	14.04	14.05	13.94	14.02
2973	NYSE	NVG	Tue, Jul 8, 2014	13.97	14.10	13.94	14.08
2972	NYSE	NVG	Mon, Jul 7, 2014	13.88	13.99	13.88	13.95
2971	NYSE	NVG	Thu, Jul 3, 2014	13.97	13.98	13.86	13.90
2970	NYSE	NVG	Wed, Jul 2, 2014	14.09	14.11	13.98	14.02
2969	NYSE	NVG	Tue, Jul 1, 2014	14.18	14.18	14.08	14.10
2968	NYSE	NVG	Mon, Jun 30, 2014	14.13	14.20	14.13	14.16
2967	NYSE	NVG	Fri, Jun 27, 2014	14.07	14.13	14.07	14.13
2966	NYSE	NVG	Thu, Jun 26, 2014	14.00	14.08	14.00	14.08
2965	NYSE	NVG	Wed, Jun 25, 2014	14.05	14.05	13.98	14.03
2964	NYSE	NVG	Tue, Jun 24, 2014	13.93	13.99	13.93	13.99
2963	NYSE	NVG	Mon, Jun 23, 2014	13.88	13.97	13.88	13.94
2962	NYSE	NVG	Fri, Jun 20, 2014	13.91	13.92	13.87	13.92
2961	NYSE	NVG	Thu, Jun 19, 2014	14.10	14.10	13.87	13.91
2960	NYSE	NVG	Wed, Jun 18, 2014	13.86	13.92	13.81	13.89
2959	NYSE	NVG	Tue, Jun 17, 2014	13.81	13.86	13.81	13.86
2958	NYSE	NVG	Mon, Jun 16, 2014	13.84	13.92	13.84	13.84
2957	NYSE	NVG	Fri, Jun 13, 2014	13.88	13.92	13.85	13.88
2956	NYSE	NVG	Thu, Jun 12, 2014	13.91	13.94	13.88	13.93
2955	NYSE	NVG	Wed, Jun 11, 2014	13.85	13.92	13.85	13.91
2954	NYSE	NVG	Tue, Jun 10, 2014	13.90	13.95	13.90	13.93
2953	NYSE	NVG	Mon, Jun 9, 2014	13.90	13.95	13.88	13.90
2952	NYSE	NVG	Fri, Jun 6, 2014	13.89	13.95	13.89	13.93
2951	NYSE	NVG	Thu, Jun 5, 2014	13.79	13.88	13.79	13.88
2950	NYSE	NVG	Wed, Jun 4, 2014	13.94	13.94	13.80	13.82
2949	NYSE	NVG	Tue, Jun 3, 2014	13.98	13.98	13.90	13.92
2948	NYSE	NVG	Mon, Jun 2, 2014	14.00	14.04	13.96	13.98
2947	NYSE	NVG	Fri, May 30, 2014	14.00	14.04	13.99	14.00
2946	NYSE	NVG	Thu, May 29, 2014	14.00	14.05	14.00	14.00
2945	NYSE	NVG	Wed, May 28, 2014	13.96	14.02	13.95	14.01
2944	NYSE	NVG	Tue, May 27, 2014	13.98	13.98	13.93	13.96
2943	NYSE	NVG	Fri, May 23, 2014	13.95	13.96	13.92	13.96
2942	NYSE	NVG	Thu, May 22, 2014	13.90	13.96	13.90	13.93
2941	NYSE	NVG	Wed, May 21, 2014	13.91	13.93	13.89	13.93
2940	NYSE	NVG	Tue, May 20, 2014	13.91	13.93	13.89	13.93
2939	NYSE	NVG	Mon, May 19, 2014	13.90	13.94	13.89	13.93
2938	NYSE	NVG	Fri, May 16, 2014	13.89	13.93	13.87	13.91
2937	NYSE	NVG	Thu, May 15, 2014	13.86	13.91	13.84	13.87
2936	NYSE	NVG	Wed, May 14, 2014	13.86	13.88	13.83	13.83
2935	NYSE	NVG	Tue, May 13, 2014	13.85	13.87	13.82	13.86
2934	NYSE	NVG	Mon, May 12, 2014	13.88	13.93	13.87	13.93
2933	NYSE	NVG	Fri, May 9, 2014	13.87	13.96	13.86	13.90
2932	NYSE	NVG	Thu, May 8, 2014	13.83	13.93	13.83	13.93
2931	NYSE	NVG	Wed, May 7, 2014	13.79	13.90	13.79	13.89
2930	NYSE	NVG	Tue, May 6, 2014	13.77	13.85	13.77	13.85
2929	NYSE	NVG	Mon, May 5, 2014	13.74	13.85	13.74	13.83
2928	NYSE	NVG	Fri, May 2, 2014	13.71	13.80	13.68	13.79
2927	NYSE	NVG	Thu, May 1, 2014	13.79	13.86	13.75	13.75
2926	NYSE	NVG	Wed, Apr 30, 2014	13.71	13.80	13.71	13.80
2925	NYSE	NVG	Tue, Apr 29, 2014	13.79	13.79	13.71	13.74
2924	NYSE	NVG	Mon, Apr 28, 2014	13.72	13.81	13.71	13.81
2923	NYSE	NVG	Fri, Apr 25, 2014	13.65	13.75	13.65	13.75
2922	NYSE	NVG	Thu, Apr 24, 2014	13.57	13.67	13.57	13.66
2921	NYSE	NVG	Wed, Apr 23, 2014	13.52	13.62	13.52	13.60
2920	NYSE	NVG	Tue, Apr 22, 2014	13.45	13.53	13.45	13.53
2919	NYSE	NVG	Mon, Apr 21, 2014	13.45	13.50	13.45	13.50
2918	NYSE	NVG	Thu, Apr 17, 2014	13.42	13.44	13.41	13.44
2917	NYSE	NVG	Wed, Apr 16, 2014	13.40	13.44	13.38	13.41
2916	NYSE	NVG	Tue, Apr 15, 2014	13.36	13.43	13.36	13.42
2915	NYSE	NVG	Mon, Apr 14, 2014	13.35	13.41	13.35	13.39
2914	NYSE	NVG	Fri, Apr 11, 2014	13.39	13.39	13.35	13.37
2913	NYSE	NVG	Thu, Apr 10, 2014	13.32	13.42	13.32	13.40
2912	NYSE	NVG	Wed, Apr 9, 2014	13.30	13.36	13.30	13.35
2911	NYSE	NVG	Tue, Apr 8, 2014	13.30	13.34	13.30	13.34
2910	NYSE	NVG	Mon, Apr 7, 2014	13.34	13.35	13.32	13.34
2909	NYSE	NVG	Fri, Apr 4, 2014	13.29	13.36	13.29	13.32
2908	NYSE	NVG	Thu, Apr 3, 2014	13.23	13.32	13.23	13.32
2907	NYSE	NVG	Wed, Apr 2, 2014	13.27	13.29	13.23	13.27
2906	NYSE	NVG	Tue, Apr 1, 2014	13.35	13.35	13.25	13.29
2905	NYSE	NVG	Mon, Mar 31, 2014	13.36	13.36	13.30	13.33
2904	NYSE	NVG	Fri, Mar 28, 2014	13.32	13.38	13.31	13.34
2903	NYSE	NVG	Thu, Mar 27, 2014	13.32	13.36	13.28	13.34
2902	NYSE	NVG	Wed, Mar 26, 2014	13.25	13.30	13.25	13.30
2901	NYSE	NVG	Tue, Mar 25, 2014	13.27	13.28	13.23	13.25
2900	NYSE	NVG	Mon, Mar 24, 2014	13.28	13.32	13.25	13.28
2899	NYSE	NVG	Fri, Mar 21, 2014	13.24	13.31	13.24	13.29
2898	NYSE	NVG	Thu, Mar 20, 2014	13.30	13.30	13.20	13.28
2897	NYSE	NVG	Wed, Mar 19, 2014	13.36	13.38	13.26	13.34
2896	NYSE	NVG	Tue, Mar 18, 2014	13.34	13.38	13.31	13.38
2895	NYSE	NVG	Mon, Mar 17, 2014	13.32	13.36	13.32	13.34
2894	NYSE	NVG	Fri, Mar 14, 2014	13.34	13.36	13.29	13.34
2893	NYSE	NVG	Thu, Mar 13, 2014	13.27	13.35	13.25	13.34
2892	NYSE	NVG	Wed, Mar 12, 2014	13.22	13.29	13.19	13.25
2891	NYSE	NVG	Tue, Mar 11, 2014	13.23	13.26	13.21	13.25
2890	NYSE	NVG	Mon, Mar 10, 2014	13.15	13.29	13.15	13.24
2889	NYSE	NVG	Fri, Mar 7, 2014	13.25	13.25	13.16	13.19
2888	NYSE	NVG	Thu, Mar 6, 2014	13.35	13.35	13.28	13.29
2887	NYSE	NVG	Wed, Mar 5, 2014	13.35	13.37	13.35	13.36
2886	NYSE	NVG	Tue, Mar 4, 2014	13.34	13.40	13.34	13.37
2885	NYSE	NVG	Mon, Mar 3, 2014	13.35	13.40	13.32	13.32
2884	NYSE	NVG	Fri, Feb 28, 2014	13.33	13.35	13.30	13.32
2883	NYSE	NVG	Thu, Feb 27, 2014	13.35	13.35	13.30	13.34
2882	NYSE	NVG	Wed, Feb 26, 2014	13.30	13.36	13.30	13.32
2881	NYSE	NVG	Tue, Feb 25, 2014	13.31	13.33	13.29	13.33
2880	NYSE	NVG	Mon, Feb 24, 2014	13.32	13.35	13.29	13.30
2879	NYSE	NVG	Fri, Feb 21, 2014	13.28	13.34	13.26	13.34
2878	NYSE	NVG	Thu, Feb 20, 2014	13.21	13.27	13.20	13.26
2877	NYSE	NVG	Wed, Feb 19, 2014	13.21	13.23	13.17	13.23
2876	NYSE	NVG	Tue, Feb 18, 2014	13.15	13.18	13.14	13.17
2875	NYSE	NVG	Fri, Feb 14, 2014	13.17	13.18	13.10	13.16
2874	NYSE	NVG	Thu, Feb 13, 2014	13.12	13.18	13.12	13.18
2873	NYSE	NVG	Wed, Feb 12, 2014	13.13	13.15	13.10	13.15
2872	NYSE	NVG	Tue, Feb 11, 2014	13.16	13.17	13.13	13.16
2871	NYSE	NVG	Mon, Feb 10, 2014	13.07	13.15	13.07	13.15
2870	NYSE	NVG	Fri, Feb 7, 2014	13.01	13.11	13.00	13.08
2869	NYSE	NVG	Thu, Feb 6, 2014	13.01	13.04	12.97	13.04
2868	NYSE	NVG	Wed, Feb 5, 2014	13.06	13.08	12.97	13.01
2867	NYSE	NVG	Tue, Feb 4, 2014	13.06	13.13	13.05	13.09
2866	NYSE	NVG	Mon, Feb 3, 2014	13.09	13.11	13.03	13.07
2865	NYSE	NVG	Fri, Jan 31, 2014	12.97	13.05	12.97	13.03
2864	NYSE	NVG	Wed, Jan 29, 2014	12.98	12.99	12.93	12.93
2863	NYSE	NVG	Tue, Jan 28, 2014	12.96	13.00	12.95	13.00
2862	NYSE	NVG	Mon, Jan 27, 2014	13.02	13.07	12.94	12.98
2861	NYSE	NVG	Fri, Jan 24, 2014	13.07	13.08	13.01	13.04
2860	NYSE	NVG	Thu, Jan 23, 2014	13.00	13.10	13.00	13.08
2859	NYSE	NVG	Wed, Jan 22, 2014	13.00	13.00	12.94	12.98
2858	NYSE	NVG	Tue, Jan 21, 2014	12.90	12.97	12.90	12.94
2857	NYSE	NVG	Fri, Jan 17, 2014	12.83	12.94	12.83	12.88
2856	NYSE	NVG	Thu, Jan 16, 2014	12.78	12.84	12.78	12.84
2855	NYSE	NVG	Wed, Jan 15, 2014	12.85	12.85	12.79	12.80
2854	NYSE	NVG	Tue, Jan 14, 2014	12.80	12.82	12.77	12.81
2853	NYSE	NVG	Mon, Jan 13, 2014	12.85	12.85	12.78	12.82
2852	NYSE	NVG	Fri, Jan 10, 2014	12.76	12.92	12.76	12.85
2851	NYSE	NVG	Thu, Jan 9, 2014	12.68	12.81	12.68	12.76
2850	NYSE	NVG	Wed, Jan 8, 2014	12.68	12.70	12.66	12.69
2849	NYSE	NVG	Tue, Jan 7, 2014	12.72	12.80	12.67	12.69
2848	NYSE	NVG	Mon, Jan 6, 2014	12.63	12.74	12.60	12.68
2847	NYSE	NVG	Fri, Jan 3, 2014	12.57	12.65	12.55	12.65
2846	NYSE	NVG	Thu, Jan 2, 2014	12.52	12.56	12.51	12.56
2845	NYSE	NVG	Tue, Dec 31, 2013	12.69	12.69	12.52	12.52
2844	NYSE	NVG	Mon, Dec 30, 2013	12.69	12.69	12.52	12.59
2843	NYSE	NVG	Fri, Dec 27, 2013	12.55	12.59	12.51	12.53
2842	NYSE	NVG	Thu, Dec 26, 2013	12.62	12.64	12.55	12.55
2841	NYSE	NVG	Tue, Dec 24, 2013	12.64	12.69	12.58	12.64
2840	NYSE	NVG	Mon, Dec 23, 2013	12.71	12.77	12.67	12.68
2839	NYSE	NVG	Fri, Dec 20, 2013	12.56	12.67	12.50	12.65
2838	NYSE	NVG	Thu, Dec 19, 2013	12.46	12.58	12.46	12.54
2837	NYSE	NVG	Wed, Dec 18, 2013	12.36	12.52	12.36	12.52
2836	NYSE	NVG	Tue, Dec 17, 2013	12.18	12.39	12.18	12.39
2835	NYSE	NVG	Mon, Dec 16, 2013	12.20	12.26	12.19	12.22
2834	NYSE	NVG	Fri, Dec 13, 2013	12.25	12.28	12.20	12.22
2833	NYSE	NVG	Thu, Dec 12, 2013	12.19	12.32	12.19	12.26
2832	NYSE	NVG	Wed, Dec 11, 2013	12.22	12.32	12.22	12.24
2831	NYSE	NVG	Tue, Dec 10, 2013	12.34	12.40	12.33	12.35
2830	NYSE	NVG	Mon, Dec 9, 2013	12.33	12.36	12.30	12.34
2829	NYSE	NVG	Fri, Dec 6, 2013	12.40	12.40	12.30	12.34
2828	NYSE	NVG	Thu, Dec 5, 2013	12.39	12.41	12.33	12.35
2827	NYSE	NVG	Wed, Dec 4, 2013	12.40	12.45	12.39	12.40
2826	NYSE	NVG	Tue, Dec 3, 2013	12.44	12.46	12.34	12.46
2825	NYSE	NVG	Mon, Dec 2, 2013	12.48	12.49	12.44	12.45
2824	NYSE	NVG	Fri, Nov 29, 2013	12.45	12.49	12.45	12.49
2823	NYSE	NVG	Wed, Nov 27, 2013	12.49	12.49	12.43	12.46
2822	NYSE	NVG	Tue, Nov 26, 2013	12.42	12.48	12.42	12.44
2821	NYSE	NVG	Mon, Nov 25, 2013	12.44	12.46	12.38	12.42
2820	NYSE	NVG	Fri, Nov 22, 2013	12.44	12.48	12.43	12.46
2819	NYSE	NVG	Thu, Nov 21, 2013	12.45	12.50	12.44	12.46
2818	NYSE	NVG	Wed, Nov 20, 2013	12.51	12.53	12.47	12.48
2817	NYSE	NVG	Tue, Nov 19, 2013	12.50	12.55	12.50	12.55
2816	NYSE	NVG	Mon, Nov 18, 2013	12.50	12.59	12.50	12.54
2815	NYSE	NVG	Fri, Nov 15, 2013	12.52	12.54	12.51	12.53
2814	NYSE	NVG	Thu, Nov 14, 2013	12.49	12.53	12.44	12.53
2813	NYSE	NVG	Wed, Nov 13, 2013	12.41	12.48	12.40	12.47
2812	NYSE	NVG	Tue, Nov 12, 2013	12.46	12.50	12.43	12.50
2811	NYSE	NVG	Mon, Nov 11, 2013	12.46	12.51	12.46	12.49
2810	NYSE	NVG	Fri, Nov 8, 2013	12.57	12.57	12.43	12.49
2809	NYSE	NVG	Thu, Nov 7, 2013	12.63	12.66	12.56	12.62
2808	NYSE	NVG	Wed, Nov 6, 2013	12.70	12.72	12.66	12.66
2807	NYSE	NVG	Tue, Nov 5, 2013	12.65	12.70	12.63	12.70
2806	NYSE	NVG	Mon, Nov 4, 2013	12.70	12.72	12.67	12.68
2805	NYSE	NVG	Fri, Nov 1, 2013	12.75	12.75	12.63	12.65
2804	NYSE	NVG	Thu, Oct 31, 2013	12.82	12.83	12.71	12.75
2803	NYSE	NVG	Wed, Oct 30, 2013	12.84	12.89	12.78	12.85
2802	NYSE	NVG	Tue, Oct 29, 2013	12.85	12.88	12.82	12.88
2801	NYSE	NVG	Mon, Oct 28, 2013	12.81	12.92	12.81	12.88
2800	NYSE	NVG	Fri, Oct 25, 2013	12.79	12.85	12.74	12.85
2799	NYSE	NVG	Thu, Oct 24, 2013	12.82	12.82	12.72	12.79
2798	NYSE	NVG	Wed, Oct 23, 2013	12.68	12.84	12.68	12.84
2797	NYSE	NVG	Tue, Oct 22, 2013	12.75	12.78	12.64	12.73
2796	NYSE	NVG	Mon, Oct 21, 2013	12.63	12.75	12.63	12.75
2795	NYSE	NVG	Fri, Oct 18, 2013	12.57	12.69	12.57	12.66
2794	NYSE	NVG	Thu, Oct 17, 2013	12.41	12.57	12.40	12.56
2793	NYSE	NVG	Wed, Oct 16, 2013	12.34	12.42	12.30	12.42
2792	NYSE	NVG	Tue, Oct 15, 2013	12.35	12.37	12.34	12.37
2791	NYSE	NVG	Mon, Oct 14, 2013	12.34	12.39	12.34	12.35
2790	NYSE	NVG	Fri, Oct 11, 2013	12.36	12.40	12.34	12.40
2789	NYSE	NVG	Thu, Oct 10, 2013	12.45	12.51	12.38	12.38
2788	NYSE	NVG	Wed, Oct 9, 2013	12.53	12.54	12.50	12.54
2787	NYSE	NVG	Tue, Oct 8, 2013	12.53	12.54	12.47	12.54
2786	NYSE	NVG	Mon, Oct 7, 2013	12.58	12.61	12.51	12.55
2785	NYSE	NVG	Fri, Oct 4, 2013	12.56	12.60	12.56	12.60
2784	NYSE	NVG	Thu, Oct 3, 2013	12.60	12.61	12.56	12.60
2783	NYSE	NVG	Wed, Oct 2, 2013	12.53	12.61	12.41	12.61
2782	NYSE	NVG	Tue, Oct 1, 2013	12.67	12.67	12.56	12.61
2781	NYSE	NVG	Mon, Sep 30, 2013	12.70	12.72	12.59	12.69
2780	NYSE	NVG	Fri, Sep 27, 2013	12.75	12.77	12.63	12.73
2779	NYSE	NVG	Thu, Sep 26, 2013	12.68	12.78	12.60	12.78
2778	NYSE	NVG	Wed, Sep 25, 2013	12.69	12.73	12.63	12.71
2777	NYSE	NVG	Tue, Sep 24, 2013	12.57	12.69	12.55	12.69
2776	NYSE	NVG	Mon, Sep 23, 2013	12.64	12.69	12.57	12.58
2775	NYSE	NVG	Fri, Sep 20, 2013	12.61	12.63	12.55	12.60
2774	NYSE	NVG	Thu, Sep 19, 2013	12.66	12.69	12.60	12.64
2773	NYSE	NVG	Wed, Sep 18, 2013	12.42	12.67	12.36	12.66
2772	NYSE	NVG	Tue, Sep 17, 2013	12.25	12.43	12.25	12.43
2771	NYSE	NVG	Mon, Sep 16, 2013	12.15	12.31	12.15	12.25
2770	NYSE	NVG	Fri, Sep 13, 2013	12.02	12.14	12.02	12.12
2769	NYSE	NVG	Thu, Sep 12, 2013	11.96	12.03	11.96	12.03
2768	NYSE	NVG	Wed, Sep 11, 2013	12.02	12.04	11.96	11.97
2767	NYSE	NVG	Tue, Sep 10, 2013	12.11	12.16	12.08	12.11
2766	NYSE	NVG	Mon, Sep 9, 2013	12.11	12.17	12.09	12.17
2765	NYSE	NVG	Fri, Sep 6, 2013	12.11	12.15	12.05	12.11
2764	NYSE	NVG	Thu, Sep 5, 2013	12.20	12.20	12.10	12.11
2763	NYSE	NVG	Wed, Sep 4, 2013	12.15	12.21	12.07	12.21
2762	NYSE	NVG	Tue, Sep 3, 2013	12.18	12.18	12.12	12.15
2761	NYSE	NVG	Fri, Aug 30, 2013	12.11	12.18	12.09	12.18
2760	NYSE	NVG	Thu, Aug 29, 2013	12.15	12.18	12.07	12.18
2759	NYSE	NVG	Wed, Aug 28, 2013	12.19	12.21	12.14	12.19
2758	NYSE	NVG	Tue, Aug 27, 2013	12.15	12.20	12.11	12.20
2757	NYSE	NVG	Mon, Aug 26, 2013	12.31	12.31	12.16	12.16
2756	NYSE	NVG	Fri, Aug 23, 2013	12.29	12.29	12.17	12.22
2755	NYSE	NVG	Thu, Aug 22, 2013	12.08	12.25	12.08	12.25
2754	NYSE	NVG	Wed, Aug 21, 2013	12.11	12.16	12.09	12.13
2753	NYSE	NVG	Tue, Aug 20, 2013	11.99	12.18	11.99	12.16
2752	NYSE	NVG	Mon, Aug 19, 2013	12.00	12.06	11.95	12.05
2751	NYSE	NVG	Fri, Aug 16, 2013	12.13	12.13	12.00	12.08
2750	NYSE	NVG	Thu, Aug 15, 2013	12.12	12.13	12.04	12.10
2749	NYSE	NVG	Wed, Aug 14, 2013	12.16	12.16	12.11	12.16
2748	NYSE	NVG	Tue, Aug 13, 2013	12.25	12.25	12.11	12.16
2747	NYSE	NVG	Mon, Aug 12, 2013	12.22	12.29	12.22	12.28
2746	NYSE	NVG	Fri, Aug 9, 2013	12.21	12.26	12.20	12.23
2745	NYSE	NVG	Thu, Aug 8, 2013	12.25	12.30	12.21	12.23
2744	NYSE	NVG	Wed, Aug 7, 2013	12.20	12.29	12.20	12.26
2743	NYSE	NVG	Tue, Aug 6, 2013	12.26	12.30	12.22	12.30
2742	NYSE	NVG	Mon, Aug 5, 2013	12.40	12.41	12.30	12.30
2741	NYSE	NVG	Fri, Aug 2, 2013	12.39	12.44	12.39	12.43
2740	NYSE	NVG	Thu, Aug 1, 2013	12.53	12.53	12.35	12.35
2739	NYSE	NVG	Wed, Jul 31, 2013	12.48	12.53	12.45	12.50
2738	NYSE	NVG	Tue, Jul 30, 2013	12.50	12.57	12.49	12.57
2737	NYSE	NVG	Mon, Jul 29, 2013	12.48	12.57	12.46	12.54
2736	NYSE	NVG	Fri, Jul 26, 2013	12.41	12.55	12.41	12.46
2735	NYSE	NVG	Thu, Jul 25, 2013	12.43	12.51	12.40	12.45
2734	NYSE	NVG	Wed, Jul 24, 2013	12.65	12.65	12.49	12.52
2733	NYSE	NVG	Tue, Jul 23, 2013	12.60	12.76	12.60	12.65
2732	NYSE	NVG	Mon, Jul 22, 2013	12.78	12.86	12.64	12.64
2731	NYSE	NVG	Fri, Jul 19, 2013	12.90	12.98	12.84	12.84
2730	NYSE	NVG	Thu, Jul 18, 2013	13.05	13.05	12.93	12.95
2729	NYSE	NVG	Wed, Jul 17, 2013	12.97	13.05	12.95	13.00
2728	NYSE	NVG	Tue, Jul 16, 2013	12.86	12.93	12.85	12.93
2727	NYSE	NVG	Mon, Jul 15, 2013	12.88	12.97	12.88	12.90
2726	NYSE	NVG	Fri, Jul 12, 2013	12.93	12.96	12.88	12.96
2725	NYSE	NVG	Thu, Jul 11, 2013	12.85	13.02	12.85	12.93
2724	NYSE	NVG	Wed, Jul 10, 2013	12.85	12.86	12.78	12.83
2723	NYSE	NVG	Tue, Jul 9, 2013	12.90	12.92	12.82	12.86
2722	NYSE	NVG	Mon, Jul 8, 2013	12.89	13.01	12.87	12.91
2721	NYSE	NVG	Fri, Jul 5, 2013	12.98	12.98	12.74	12.85
2720	NYSE	NVG	Wed, Jul 3, 2013	13.15	13.15	12.94	13.05
2719	NYSE	NVG	Tue, Jul 2, 2013	13.31	13.38	13.23	13.25
2718	NYSE	NVG	Mon, Jul 1, 2013	13.40	13.49	13.35	13.44
2717	NYSE	NVG	Thu, Jun 27, 2013	13.23	13.43	13.23	13.40
2716	NYSE	NVG	Wed, Jun 26, 2013	12.92	13.26	12.92	13.22
2715	NYSE	NVG	Tue, Jun 25, 2013	12.83	12.90	12.57	12.90
2714	NYSE	NVG	Mon, Jun 24, 2013	12.94	13.01	12.69	12.88
2713	NYSE	NVG	Fri, Jun 21, 2013	13.23	13.30	13.09	13.09
2712	NYSE	NVG	Thu, Jun 20, 2013	13.39	13.45	13.19	13.23
2711	NYSE	NVG	Wed, Jun 19, 2013	13.52	13.62	13.48	13.48
2710	NYSE	NVG	Tue, Jun 18, 2013	13.61	13.65	13.52	13.60
2709	NYSE	NVG	Mon, Jun 17, 2013	13.72	13.75	13.61	13.66
2708	NYSE	NVG	Fri, Jun 14, 2013	13.59	13.76	13.59	13.72
2707	NYSE	NVG	Thu, Jun 13, 2013	13.51	13.67	13.42	13.62
2706	NYSE	NVG	Wed, Jun 12, 2013	13.79	13.79	13.53	13.55
2705	NYSE	NVG	Tue, Jun 11, 2013	13.90	13.90	13.75	13.88
2704	NYSE	NVG	Mon, Jun 10, 2013	14.05	14.09	13.93	14.00
2703	NYSE	NVG	Fri, Jun 7, 2013	14.05	14.13	14.00	14.06
2702	NYSE	NVG	Thu, Jun 6, 2013	14.01	14.13	13.98	14.06
2701	NYSE	NVG	Wed, Jun 5, 2013	13.94	14.09	13.93	14.08
2700	NYSE	NVG	Tue, Jun 4, 2013	13.88	14.05	13.75	13.95
2699	NYSE	NVG	Mon, Jun 3, 2013	14.02	14.02	13.80	13.89
2698	NYSE	NVG	Fri, May 31, 2013	14.15	14.17	13.88	14.03
2697	NYSE	NVG	Thu, May 30, 2013	14.16	14.28	14.13	14.18
2696	NYSE	NVG	Wed, May 29, 2013	14.33	14.35	14.09	14.17
2695	NYSE	NVG	Tue, May 28, 2013	14.52	14.53	14.32	14.40
2694	NYSE	NVG	Fri, May 24, 2013	14.56	14.60	14.50	14.54
2693	NYSE	NVG	Thu, May 23, 2013	14.62	14.64	14.56	14.58
2692	NYSE	NVG	Wed, May 22, 2013	14.62	14.68	14.59	14.59
2691	NYSE	NVG	Tue, May 21, 2013	14.68	14.70	14.62	14.64
2690	NYSE	NVG	Mon, May 20, 2013	14.66	14.74	14.66	14.72
2689	NYSE	NVG	Fri, May 17, 2013	14.62	14.69	14.61	14.69
2688	NYSE	NVG	Thu, May 16, 2013	14.59	14.69	14.59	14.65
2687	NYSE	NVG	Wed, May 15, 2013	14.66	14.68	14.61	14.62
2686	NYSE	NVG	Tue, May 14, 2013	14.60	14.70	14.59	14.68
2685	NYSE	NVG	Mon, May 13, 2013	14.77	14.77	14.63	14.69
2684	NYSE	NVG	Fri, May 10, 2013	14.83	14.86	14.78	14.85
2683	NYSE	NVG	Thu, May 9, 2013	14.90	14.90	14.85	14.87
2682	NYSE	NVG	Wed, May 8, 2013	14.91	14.91	14.85	14.87
2681	NYSE	NVG	Tue, May 7, 2013	14.87	14.91	14.85	14.91
2680	NYSE	NVG	Mon, May 6, 2013	14.86	14.90	14.85	14.89
2679	NYSE	NVG	Fri, May 3, 2013	14.91	14.91	14.87	14.90
2678	NYSE	NVG	Thu, May 2, 2013	14.92	14.95	14.87	14.95
2677	NYSE	NVG	Wed, May 1, 2013	14.85	14.92	14.85	14.91
2676	NYSE	NVG	Tue, Apr 30, 2013	14.89	14.91	14.82	14.88
2675	NYSE	NVG	Mon, Apr 29, 2013	14.79	14.89	14.79	14.88
2674	NYSE	NVG	Fri, Apr 26, 2013	14.77	14.84	14.77	14.81
2673	NYSE	NVG	Thu, Apr 25, 2013	14.81	14.85	14.78	14.79
2672	NYSE	NVG	Wed, Apr 24, 2013	14.88	14.88	14.78	14.83
2671	NYSE	NVG	Tue, Apr 23, 2013	14.85	14.88	14.83	14.85
2670	NYSE	NVG	Mon, Apr 22, 2013	14.80	14.86	14.80	14.82
2669	NYSE	NVG	Fri, Apr 19, 2013	14.84	14.85	14.82	14.83
2668	NYSE	NVG	Thu, Apr 18, 2013	14.87	14.87	14.78	14.84
2667	NYSE	NVG	Wed, Apr 17, 2013	14.80	14.90	14.80	14.84
2666	NYSE	NVG	Tue, Apr 16, 2013	14.83	14.86	14.82	14.82
2665	NYSE	NVG	Mon, Apr 15, 2013	14.92	14.95	14.83	14.83
2664	NYSE	NVG	Fri, Apr 12, 2013	14.91	14.98	14.91	14.95
2663	NYSE	NVG	Thu, Apr 11, 2013	14.90	14.96	14.89	14.91
2662	NYSE	NVG	Wed, Apr 10, 2013	14.92	15.02	14.90	14.99
2661	NYSE	NVG	Tue, Apr 9, 2013	14.92	14.98	14.92	14.92
2660	NYSE	NVG	Mon, Apr 8, 2013	14.92	15.00	14.89	14.96
2659	NYSE	NVG	Fri, Apr 5, 2013	14.82	14.97	14.82	14.94
2658	NYSE	NVG	Thu, Apr 4, 2013	14.70	14.78	14.70	14.76
2657	NYSE	NVG	Wed, Apr 3, 2013	14.69	14.74	14.67	14.69
2656	NYSE	NVG	Tue, Apr 2, 2013	14.91	14.91	14.76	14.77
2655	NYSE	NVG	Mon, Apr 1, 2013	14.98	14.98	14.87	14.89
2654	NYSE	NVG	Thu, Mar 28, 2013	14.93	14.97	14.88	14.91
2653	NYSE	NVG	Wed, Mar 27, 2013	14.76	14.89	14.76	14.89
2652	NYSE	NVG	Tue, Mar 26, 2013	14.77	14.80	14.68	14.80
2651	NYSE	NVG	Mon, Mar 25, 2013	14.79	14.82	14.65	14.75
2650	NYSE	NVG	Fri, Mar 22, 2013	14.80	14.84	14.75	14.75
2649	NYSE	NVG	Thu, Mar 21, 2013	14.84	14.92	14.77	14.84
2648	NYSE	NVG	Wed, Mar 20, 2013	14.69	14.89	14.69	14.89
2647	NYSE	NVG	Tue, Mar 19, 2013	14.63	14.73	14.58	14.70
2646	NYSE	NVG	Mon, Mar 18, 2013	14.39	14.68	14.35	14.68
2645	NYSE	NVG	Fri, Mar 15, 2013	14.44	14.60	14.34	14.42
2644	NYSE	NVG	Thu, Mar 14, 2013	14.71	14.73	14.45	14.54
2643	NYSE	NVG	Wed, Mar 13, 2013	14.83	14.83	14.70	14.78
2642	NYSE	NVG	Tue, Mar 12, 2013	14.82	14.88	14.80	14.88
2641	NYSE	NVG	Mon, Mar 11, 2013	14.94	14.94	14.82	14.85
2640	NYSE	NVG	Fri, Mar 8, 2013	15.08	15.08	14.95	14.95
2639	NYSE	NVG	Thu, Mar 7, 2013	15.12	15.13	15.07	15.12
2638	NYSE	NVG	Wed, Mar 6, 2013	15.17	15.19	15.12	15.15
2637	NYSE	NVG	Tue, Mar 5, 2013	15.23	15.24	15.16	15.16
2636	NYSE	NVG	Mon, Mar 4, 2013	15.30	15.30	15.17	15.26
2635	NYSE	NVG	Fri, Mar 1, 2013	15.33	15.34	15.24	15.29
2634	NYSE	NVG	Thu, Feb 28, 2013	15.30	15.36	15.25	15.30
2633	NYSE	NVG	Wed, Feb 27, 2013	15.31	15.35	15.27	15.32
2632	NYSE	NVG	Tue, Feb 26, 2013	15.25	15.31	15.18	15.26
2631	NYSE	NVG	Mon, Feb 25, 2013	15.33	15.37	15.24	15.29
2630	NYSE	NVG	Fri, Feb 22, 2013	15.34	15.38	15.29	15.34
2629	NYSE	NVG	Thu, Feb 21, 2013	15.31	15.38	15.31	15.38
2628	NYSE	NVG	Wed, Feb 20, 2013	15.35	15.38	15.29	15.35
2627	NYSE	NVG	Tue, Feb 19, 2013	15.29	15.36	15.26	15.36
2626	NYSE	NVG	Fri, Feb 15, 2013	15.25	15.28	15.19	15.28
2625	NYSE	NVG	Thu, Feb 14, 2013	15.25	15.31	15.23	15.25
2624	NYSE	NVG	Wed, Feb 13, 2013	15.42	15.42	15.28	15.28
2623	NYSE	NVG	Tue, Feb 12, 2013	15.48	15.48	15.44	15.46
2622	NYSE	NVG	Mon, Feb 11, 2013	15.45	15.50	15.45	15.47
2621	NYSE	NVG	Fri, Feb 8, 2013	15.44	15.51	15.44	15.45
2620	NYSE	NVG	Thu, Feb 7, 2013	15.52	15.52	15.43	15.49
2619	NYSE	NVG	Wed, Feb 6, 2013	15.42	15.49	15.42	15.48
2618	NYSE	NVG	Tue, Feb 5, 2013	15.46	15.52	15.41	15.44
2617	NYSE	NVG	Mon, Feb 4, 2013	15.54	15.54	15.46	15.49
2616	NYSE	NVG	Fri, Feb 1, 2013	15.58	15.60	15.49	15.52
2615	NYSE	NVG	Thu, Jan 31, 2013	15.51	15.56	15.47	15.56
2614	NYSE	NVG	Wed, Jan 30, 2013	15.48	15.56	15.44	15.53
2613	NYSE	NVG	Tue, Jan 29, 2013	15.45	15.55	15.40	15.53
2612	NYSE	NVG	Mon, Jan 28, 2013	15.68	15.72	15.43	15.48
2611	NYSE	NVG	Fri, Jan 25, 2013	15.77	15.77	15.64	15.75
2610	NYSE	NVG	Thu, Jan 24, 2013	15.77	15.79	15.71	15.78
2609	NYSE	NVG	Wed, Jan 23, 2013	15.74	15.75	15.70	15.73
2608	NYSE	NVG	Tue, Jan 22, 2013	15.70	15.74	15.68	15.74
2607	NYSE	NVG	Fri, Jan 18, 2013	15.73	15.73	15.63	15.69
2606	NYSE	NVG	Thu, Jan 17, 2013	15.71	15.79	15.68	15.69
2605	NYSE	NVG	Wed, Jan 16, 2013	15.59	15.73	15.55	15.73
2604	NYSE	NVG	Tue, Jan 15, 2013	15.67	15.74	15.60	15.63
2603	NYSE	NVG	Mon, Jan 14, 2013	15.83	15.88	15.68	15.70
2602	NYSE	NVG	Fri, Jan 11, 2013	15.87	15.90	15.75	15.86
2601	NYSE	NVG	Thu, Jan 10, 2013	15.88	15.91	15.82	15.90
2600	NYSE	NVG	Wed, Jan 9, 2013	15.89	15.91	15.82	15.87
2599	NYSE	NVG	Tue, Jan 8, 2013	15.78	15.87	15.77	15.86
2598	NYSE	NVG	Mon, Jan 7, 2013	15.69	15.80	15.68	15.79
2597	NYSE	NVG	Fri, Jan 4, 2013	15.67	15.69	15.63	15.66
2596	NYSE	NVG	Thu, Jan 3, 2013	15.69	15.72	15.59	15.61
2595	NYSE	NVG	Wed, Jan 2, 2013	15.35	15.64	15.35	15.63
2594	NYSE	NVG	Mon, Dec 31, 2012	15.29	15.37	15.23	15.35
2593	NYSE	NVG	Fri, Dec 28, 2012	15.16	15.26	15.16	15.26
2592	NYSE	NVG	Thu, Dec 27, 2012	15.27	15.33	15.12	15.23
2591	NYSE	NVG	Wed, Dec 26, 2012	15.43	15.52	15.29	15.34
2590	NYSE	NVG	Mon, Dec 24, 2012	15.53	15.53	15.41	15.48
2589	NYSE	NVG	Fri, Dec 21, 2012	15.34	15.55	15.29	15.53
2588	NYSE	NVG	Thu, Dec 20, 2012	15.45	15.49	15.35	15.36
2587	NYSE	NVG	Wed, Dec 19, 2012	15.03	15.39	15.03	15.39
2586	NYSE	NVG	Tue, Dec 18, 2012	15.14	15.19	14.88	15.06
2585	NYSE	NVG	Mon, Dec 17, 2012	15.36	15.40	15.14	15.17
2584	NYSE	NVG	Fri, Dec 14, 2012	15.63	15.63	15.36	15.41
2583	NYSE	NVG	Thu, Dec 13, 2012	15.60	15.71	15.55	15.58
2582	NYSE	NVG	Wed, Dec 12, 2012	15.87	15.92	15.65	15.66
2581	NYSE	NVG	Tue, Dec 11, 2012	15.96	16.10	15.91	16.10
2580	NYSE	NVG	Mon, Dec 10, 2012	16.09	16.16	15.97	15.98
2579	NYSE	NVG	Fri, Dec 7, 2012	16.14	16.19	16.05	16.05
2578	NYSE	NVG	Thu, Dec 6, 2012	16.05	16.16	16.00	16.15
2577	NYSE	NVG	Wed, Dec 5, 2012	16.08	16.13	16.05	16.11
2576	NYSE	NVG	Tue, Dec 4, 2012	16.27	16.27	16.05	16.08
2575	NYSE	NVG	Mon, Dec 3, 2012	16.28	16.30	16.20	16.23
2574	NYSE	NVG	Fri, Nov 30, 2012	16.30	16.30	16.18	16.28
2573	NYSE	NVG	Thu, Nov 29, 2012	16.22	16.29	16.22	16.24
2572	NYSE	NVG	Wed, Nov 28, 2012	16.14	16.26	16.13	16.26
2571	NYSE	NVG	Tue, Nov 27, 2012	16.13	16.14	16.08	16.14
2570	NYSE	NVG	Mon, Nov 26, 2012	16.15	16.15	15.94	16.12
2569	NYSE	NVG	Fri, Nov 23, 2012	16.15	16.16	16.10	16.16
2568	NYSE	NVG	Wed, Nov 21, 2012	16.10	16.15	16.09	16.14
2567	NYSE	NVG	Tue, Nov 20, 2012	16.10	16.13	16.00	16.09
2566	NYSE	NVG	Mon, Nov 19, 2012	16.00	16.14	16.00	16.07
2565	NYSE	NVG	Fri, Nov 16, 2012	15.69	16.00	15.69	16.00
2564	NYSE	NVG	Thu, Nov 15, 2012	15.85	15.85	15.57	15.69
2563	NYSE	NVG	Wed, Nov 14, 2012	15.97	15.98	15.80	15.80
2562	NYSE	NVG	Tue, Nov 13, 2012	16.10	16.10	15.94	16.02
2561	NYSE	NVG	Mon, Nov 12, 2012	16.10	16.14	16.06	16.10
2560	NYSE	NVG	Fri, Nov 9, 2012	16.01	16.10	16.01	16.08
2559	NYSE	NVG	Thu, Nov 8, 2012	15.90	16.04	15.90	16.03
2558	NYSE	NVG	Wed, Nov 7, 2012	15.77	15.92	15.77	15.92
2557	NYSE	NVG	Tue, Nov 6, 2012	15.79	15.83	15.76	15.83
2556	NYSE	NVG	Mon, Nov 5, 2012	15.79	15.81	15.68	15.77
2555	NYSE	NVG	Fri, Nov 2, 2012	15.89	15.89	15.71	15.76
2554	NYSE	NVG	Thu, Nov 1, 2012	15.89	15.91	15.80	15.87
2553	NYSE	NVG	Wed, Oct 31, 2012	15.90	15.90	15.78	15.82
2552	NYSE	NVG	Fri, Oct 26, 2012	15.80	15.88	15.79	15.86
2551	NYSE	NVG	Thu, Oct 25, 2012	15.82	15.90	15.78	15.84
2550	NYSE	NVG	Wed, Oct 24, 2012	15.81	15.89	15.78	15.80
2549	NYSE	NVG	Tue, Oct 23, 2012	15.81	15.88	15.72	15.85
2548	NYSE	NVG	Mon, Oct 22, 2012	15.74	15.79	15.70	15.79
2547	NYSE	NVG	Fri, Oct 19, 2012	15.70	15.75	15.66	15.75
2546	NYSE	NVG	Thu, Oct 18, 2012	15.76	15.76	15.66	15.73
2545	NYSE	NVG	Wed, Oct 17, 2012	15.68	15.76	15.68	15.76
2544	NYSE	NVG	Tue, Oct 16, 2012	15.76	15.76	15.68	15.71
2543	NYSE	NVG	Mon, Oct 15, 2012	15.77	15.77	15.67	15.75
2542	NYSE	NVG	Fri, Oct 12, 2012	15.68	15.79	15.67	15.73
2541	NYSE	NVG	Thu, Oct 11, 2012	15.77	15.81	15.68	15.69
2540	NYSE	NVG	Wed, Oct 10, 2012	15.83	15.86	15.75	15.81
2539	NYSE	NVG	Tue, Oct 9, 2012	15.84	15.88	15.78	15.82
2538	NYSE	NVG	Mon, Oct 8, 2012	15.84	15.89	15.81	15.88
2537	NYSE	NVG	Fri, Oct 5, 2012	15.80	15.87	15.75	15.79
2536	NYSE	NVG	Thu, Oct 4, 2012	16.00	16.00	15.80	15.84
2535	NYSE	NVG	Wed, Oct 3, 2012	15.99	15.99	15.93	15.98
2534	NYSE	NVG	Tue, Oct 2, 2012	15.97	16.01	15.85	15.99
2533	NYSE	NVG	Mon, Oct 1, 2012	15.93	15.97	15.87	15.92
2532	NYSE	NVG	Fri, Sep 28, 2012	15.90	15.93	15.84	15.93
2531	NYSE	NVG	Thu, Sep 27, 2012	15.94	15.94	15.76	15.86
2530	NYSE	NVG	Wed, Sep 26, 2012	15.83	15.93	15.79	15.89
2529	NYSE	NVG	Tue, Sep 25, 2012	15.79	15.79	15.73	15.79
2528	NYSE	NVG	Mon, Sep 24, 2012	15.76	15.79	15.69	15.76
2527	NYSE	NVG	Fri, Sep 21, 2012	15.65	15.71	15.60	15.71
2526	NYSE	NVG	Thu, Sep 20, 2012	15.62	15.70	15.56	15.60
2525	NYSE	NVG	Wed, Sep 19, 2012	15.60	15.62	15.56	15.62
2524	NYSE	NVG	Tue, Sep 18, 2012	15.55	15.55	15.45	15.55
2523	NYSE	NVG	Mon, Sep 17, 2012	15.51	15.61	15.40	15.45
2522	NYSE	NVG	Fri, Sep 14, 2012	15.51	15.56	15.47	15.47
2521	NYSE	NVG	Thu, Sep 13, 2012	15.65	15.65	15.52	15.53
2520	NYSE	NVG	Wed, Sep 12, 2012	15.59	15.62	15.50	15.62
2519	NYSE	NVG	Tue, Sep 11, 2012	15.61	15.62	15.53	15.58
2518	NYSE	NVG	Mon, Sep 10, 2012	15.57	15.60	15.52	15.58
2517	NYSE	NVG	Fri, Sep 7, 2012	15.52	15.55	15.47	15.54
2516	NYSE	NVG	Thu, Sep 6, 2012	15.49	15.56	15.45	15.46
2515	NYSE	NVG	Wed, Sep 5, 2012	15.53	15.57	15.45	15.47
2514	NYSE	NVG	Tue, Sep 4, 2012	15.67	15.67	15.47	15.48
2513	NYSE	NVG	Fri, Aug 31, 2012	15.51	15.57	15.48	15.56
2512	NYSE	NVG	Thu, Aug 30, 2012	15.52	15.55	15.41	15.54
2511	NYSE	NVG	Wed, Aug 29, 2012	15.46	15.53	15.41	15.53
2510	NYSE	NVG	Tue, Aug 28, 2012	15.30	15.40	15.30	15.38
2509	NYSE	NVG	Mon, Aug 27, 2012	15.35	15.35	15.30	15.34
2508	NYSE	NVG	Fri, Aug 24, 2012	15.25	15.31	15.25	15.31
2507	NYSE	NVG	Thu, Aug 23, 2012	15.25	15.30	15.19	15.25
2506	NYSE	NVG	Wed, Aug 22, 2012	15.30	15.30	15.08	15.22
2505	NYSE	NVG	Tue, Aug 21, 2012	15.33	15.35	15.21	15.24
2504	NYSE	NVG	Mon, Aug 20, 2012	15.20	15.30	15.20	15.28
2503	NYSE	NVG	Fri, Aug 17, 2012	15.19	15.27	15.16	15.24
2502	NYSE	NVG	Thu, Aug 16, 2012	15.16	15.24	15.12	15.21
2501	NYSE	NVG	Wed, Aug 15, 2012	15.15	15.23	15.05	15.13
2500	NYSE	NVG	Tue, Aug 14, 2012	15.37	15.43	15.13	15.18
2499	NYSE	NVG	Mon, Aug 13, 2012	15.54	15.60	15.28	15.37
2498	NYSE	NVG	Fri, Aug 10, 2012	15.75	15.78	15.66	15.69
2497	NYSE	NVG	Thu, Aug 9, 2012	15.77	15.78	15.67	15.70
2496	NYSE	NVG	Wed, Aug 8, 2012	15.81	15.83	15.70	15.75
2495	NYSE	NVG	Tue, Aug 7, 2012	15.85	15.85	15.75	15.75
2494	NYSE	NVG	Mon, Aug 6, 2012	15.72	15.81	15.70	15.81
2493	NYSE	NVG	Fri, Aug 3, 2012	15.73	15.76	15.65	15.65
2492	NYSE	NVG	Thu, Aug 2, 2012	15.73	15.79	15.67	15.67
2491	NYSE	NVG	Wed, Aug 1, 2012	15.70	15.77	15.65	15.69
2490	NYSE	NVG	Tue, Jul 31, 2012	15.72	15.78	15.65	15.68
2489	NYSE	NVG	Mon, Jul 30, 2012	15.82	15.82	15.62	15.66
2488	NYSE	NVG	Fri, Jul 27, 2012	15.88	15.92	15.74	15.77
2487	NYSE	NVG	Thu, Jul 26, 2012	15.80	15.87	15.76	15.86
2486	NYSE	NVG	Wed, Jul 25, 2012	15.69	15.83	15.69	15.78
2485	NYSE	NVG	Tue, Jul 24, 2012	15.63	15.69	15.60	15.69
2484	NYSE	NVG	Mon, Jul 23, 2012	15.56	15.65	15.55	15.58
2483	NYSE	NVG	Fri, Jul 20, 2012	15.57	15.64	15.53	15.63
2482	NYSE	NVG	Thu, Jul 19, 2012	15.59	15.63	15.49	15.51
2481	NYSE	NVG	Wed, Jul 18, 2012	15.54	15.62	15.53	15.54
2480	NYSE	NVG	Tue, Jul 17, 2012	15.62	15.62	15.48	15.54
2479	NYSE	NVG	Mon, Jul 16, 2012	15.51	15.58	15.46	15.55
2478	NYSE	NVG	Fri, Jul 13, 2012	15.44	15.49	15.41	15.44
2477	NYSE	NVG	Thu, Jul 12, 2012	15.54	15.54	15.35	15.38
2476	NYSE	NVG	Wed, Jul 11, 2012	15.61	15.64	15.44	15.50
2475	NYSE	NVG	Tue, Jul 10, 2012	15.63	15.66	15.53	15.60
2474	NYSE	NVG	Mon, Jul 9, 2012	15.58	15.59	15.51	15.58
2473	NYSE	NVG	Fri, Jul 6, 2012	15.44	15.55	15.42	15.55
2472	NYSE	NVG	Thu, Jul 5, 2012	15.51	15.51	15.44	15.47
2471	NYSE	NVG	Tue, Jul 3, 2012	15.46	15.48	15.40	15.42
2470	NYSE	NVG	Mon, Jul 2, 2012	15.35	15.40	15.31	15.40
2469	NYSE	NVG	Fri, Jun 29, 2012	15.30	15.30	15.24	15.27
2468	NYSE	NVG	Thu, Jun 28, 2012	15.26	15.31	15.20	15.23
2467	NYSE	NVG	Wed, Jun 27, 2012	15.22	15.28	15.20	15.23
2466	NYSE	NVG	Tue, Jun 26, 2012	15.23	15.25	15.14	15.15
2465	NYSE	NVG	Mon, Jun 25, 2012	15.14	15.20	15.13	15.20
2464	NYSE	NVG	Fri, Jun 22, 2012	15.19	15.20	15.13	15.14
2463	NYSE	NVG	Thu, Jun 21, 2012	15.17	15.24	15.13	15.17
2462	NYSE	NVG	Wed, Jun 20, 2012	15.23	15.23	15.15	15.19
2461	NYSE	NVG	Tue, Jun 19, 2012	15.12	15.20	15.11	15.18
2460	NYSE	NVG	Mon, Jun 18, 2012	15.07	15.12	15.07	15.10
2459	NYSE	NVG	Fri, Jun 15, 2012	15.18	15.18	15.03	15.06
2458	NYSE	NVG	Thu, Jun 14, 2012	15.22	15.22	15.12	15.13
2457	NYSE	NVG	Wed, Jun 13, 2012	15.15	15.17	15.10	15.15
2456	NYSE	NVG	Tue, Jun 12, 2012	15.31	15.31	15.18	15.22
2455	NYSE	NVG	Mon, Jun 11, 2012	15.30	15.30	15.24	15.24
2454	NYSE	NVG	Fri, Jun 8, 2012	15.18	15.30	15.18	15.30
2453	NYSE	NVG	Thu, Jun 7, 2012	15.22	15.22	15.13	15.20
2452	NYSE	NVG	Wed, Jun 6, 2012	15.21	15.22	15.17	15.19
2451	NYSE	NVG	Tue, Jun 5, 2012	15.14	15.19	15.12	15.16
2450	NYSE	NVG	Mon, Jun 4, 2012	15.15	15.17	15.10	15.17
2449	NYSE	NVG	Fri, Jun 1, 2012	15.11	15.23	15.11	15.12
2448	NYSE	NVG	Thu, May 31, 2012	15.07	15.20	15.07	15.20
2447	NYSE	NVG	Wed, May 30, 2012	15.05	15.13	15.02	15.09
2446	NYSE	NVG	Tue, May 29, 2012	15.12	15.14	15.06	15.08
2445	NYSE	NVG	Fri, May 25, 2012	15.03	15.14	15.03	15.08
2444	NYSE	NVG	Thu, May 24, 2012	15.13	15.13	15.00	15.03
2443	NYSE	NVG	Wed, May 23, 2012	15.03	15.11	15.03	15.09
2442	NYSE	NVG	Tue, May 22, 2012	15.04	15.08	15.01	15.08
2441	NYSE	NVG	Mon, May 21, 2012	15.04	15.04	14.95	15.01
2440	NYSE	NVG	Fri, May 18, 2012	15.10	15.14	14.92	14.99
2439	NYSE	NVG	Thu, May 17, 2012	15.28	15.29	15.06	15.08
2438	NYSE	NVG	Wed, May 16, 2012	15.39	15.39	15.24	15.32
2437	NYSE	NVG	Tue, May 15, 2012	15.44	15.44	15.31	15.34
2436	NYSE	NVG	Mon, May 14, 2012	15.41	15.41	15.27	15.34
2435	NYSE	NVG	Fri, May 11, 2012	15.38	15.38	15.29	15.36
2434	NYSE	NVG	Thu, May 10, 2012	15.39	15.40	15.33	15.38
2433	NYSE	NVG	Wed, May 9, 2012	15.45	15.45	15.33	15.34
2432	NYSE	NVG	Tue, May 8, 2012	15.38	15.45	15.35	15.40
2431	NYSE	NVG	Mon, May 7, 2012	15.39	15.39	15.30	15.36
2430	NYSE	NVG	Fri, May 4, 2012	15.32	15.39	15.27	15.39
2429	NYSE	NVG	Thu, May 3, 2012	15.28	15.35	15.26	15.28
2428	NYSE	NVG	Wed, May 2, 2012	15.25	15.29	15.21	15.22
2427	NYSE	NVG	Tue, May 1, 2012	15.19	15.25	15.18	15.21
2426	NYSE	NVG	Mon, Apr 30, 2012	15.17	15.20	15.13	15.18
2425	NYSE	NVG	Fri, Apr 27, 2012	15.20	15.20	15.12	15.17
2424	NYSE	NVG	Thu, Apr 26, 2012	15.20	15.25	15.12	15.15
2423	NYSE	NVG	Wed, Apr 25, 2012	15.15	15.20	15.11	15.16
2422	NYSE	NVG	Tue, Apr 24, 2012	15.12	15.13	15.06	15.12
2421	NYSE	NVG	Mon, Apr 23, 2012	15.10	15.16	15.06	15.06
2420	NYSE	NVG	Fri, Apr 20, 2012	15.15	15.15	15.05	15.10
2419	NYSE	NVG	Thu, Apr 19, 2012	15.16	15.16	15.05	15.10
2418	NYSE	NVG	Wed, Apr 18, 2012	15.13	15.13	15.03	15.10
2417	NYSE	NVG	Tue, Apr 17, 2012	15.14	15.14	15.04	15.05
2416	NYSE	NVG	Mon, Apr 16, 2012	15.20	15.20	15.05	15.07
2415	NYSE	NVG	Fri, Apr 13, 2012	15.19	15.19	15.05	15.17
2414	NYSE	NVG	Thu, Apr 12, 2012	15.06	15.17	15.04	15.11
2413	NYSE	NVG	Wed, Apr 11, 2012	15.04	15.19	15.04	15.12
2412	NYSE	NVG	Tue, Apr 10, 2012	15.02	15.17	15.02	15.11
2411	NYSE	NVG	Mon, Apr 9, 2012	14.99	15.10	14.99	15.08
2410	NYSE	NVG	Thu, Apr 5, 2012	14.98	14.99	14.92	14.98
2409	NYSE	NVG	Wed, Apr 4, 2012	14.85	14.94	14.85	14.93
2408	NYSE	NVG	Tue, Apr 3, 2012	14.92	14.92	14.82	14.86
2407	NYSE	NVG	Mon, Apr 2, 2012	15.03	15.06	14.71	14.85
2406	NYSE	NVG	Fri, Mar 30, 2012	14.95	14.98	14.86	14.96
2405	NYSE	NVG	Thu, Mar 29, 2012	14.92	15.02	14.85	14.86
2404	NYSE	NVG	Wed, Mar 28, 2012	14.76	14.95	14.74	14.95
2403	NYSE	NVG	Tue, Mar 27, 2012	14.80	14.80	14.62	14.76
2402	NYSE	NVG	Mon, Mar 26, 2012	14.83	14.83	14.67	14.78
2401	NYSE	NVG	Fri, Mar 23, 2012	14.90	14.93	14.76	14.77
2400	NYSE	NVG	Thu, Mar 22, 2012	14.94	14.96	14.79	14.89
2399	NYSE	NVG	Wed, Mar 21, 2012	14.90	14.93	14.73	14.89
2398	NYSE	NVG	Tue, Mar 20, 2012	14.64	14.82	14.64	14.82
2397	NYSE	NVG	Mon, Mar 19, 2012	14.38	14.68	14.36	14.61
2396	NYSE	NVG	Fri, Mar 16, 2012	14.75	14.75	14.17	14.47
2395	NYSE	NVG	Thu, Mar 15, 2012	15.11	15.11	14.66	14.73
2394	NYSE	NVG	Wed, Mar 14, 2012	15.32	15.35	15.03	15.04
2393	NYSE	NVG	Tue, Mar 13, 2012	15.38	15.40	15.28	15.37
2392	NYSE	NVG	Mon, Mar 12, 2012	15.44	15.44	15.36	15.40
2391	NYSE	NVG	Fri, Mar 9, 2012	15.42	15.43	15.35	15.40
2390	NYSE	NVG	Thu, Mar 8, 2012	15.34	15.43	15.31	15.36
2389	NYSE	NVG	Wed, Mar 7, 2012	15.32	15.36	15.26	15.32
2388	NYSE	NVG	Tue, Mar 6, 2012	15.33	15.36	15.22	15.24
2387	NYSE	NVG	Mon, Mar 5, 2012	15.40	15.40	15.26	15.29
2386	NYSE	NVG	Fri, Mar 2, 2012	15.39	15.43	15.31	15.37
2385	NYSE	NVG	Thu, Mar 1, 2012	15.28	15.42	15.28	15.38
2384	NYSE	NVG	Wed, Feb 29, 2012	15.33	15.41	15.26	15.34
2383	NYSE	NVG	Tue, Feb 28, 2012	15.35	15.37	15.25	15.37
2382	NYSE	NVG	Mon, Feb 27, 2012	15.31	15.40	15.26	15.31
2381	NYSE	NVG	Fri, Feb 24, 2012	15.18	15.27	15.15	15.27
2380	NYSE	NVG	Thu, Feb 23, 2012	15.25	15.25	15.06	15.13
2379	NYSE	NVG	Wed, Feb 22, 2012	15.25	15.26	15.13	15.17
2378	NYSE	NVG	Tue, Feb 21, 2012	15.10	15.28	15.06	15.28
2377	NYSE	NVG	Fri, Feb 17, 2012	15.03	15.08	14.95	15.07
2376	NYSE	NVG	Thu, Feb 16, 2012	15.22	15.22	15.05	15.08
2375	NYSE	NVG	Wed, Feb 15, 2012	15.27	15.30	15.16	15.16
2374	NYSE	NVG	Tue, Feb 14, 2012	15.49	15.49	15.17	15.18
2373	NYSE	NVG	Mon, Feb 13, 2012	15.44	15.47	15.41	15.47
2372	NYSE	NVG	Fri, Feb 10, 2012	15.55	15.60	15.43	15.44
2371	NYSE	NVG	Thu, Feb 9, 2012	15.69	15.71	15.48	15.55
2370	NYSE	NVG	Wed, Feb 8, 2012	15.57	15.64	15.46	15.64
2369	NYSE	NVG	Tue, Feb 7, 2012	15.46	15.55	15.38	15.53
2368	NYSE	NVG	Mon, Feb 6, 2012	15.48	15.48	15.36	15.40
2367	NYSE	NVG	Fri, Feb 3, 2012	15.49	15.52	15.38	15.45
2366	NYSE	NVG	Thu, Feb 2, 2012	15.56	15.59	15.40	15.45
2365	NYSE	NVG	Wed, Feb 1, 2012	15.47	15.62	15.47	15.53
2364	NYSE	NVG	Tue, Jan 31, 2012	15.48	15.58	15.43	15.51
2363	NYSE	NVG	Mon, Jan 30, 2012	15.40	15.51	15.39	15.51
2362	NYSE	NVG	Fri, Jan 27, 2012	15.41	15.52	15.34	15.40
2361	NYSE	NVG	Thu, Jan 26, 2012	15.39	15.51	15.31	15.39
2360	NYSE	NVG	Wed, Jan 25, 2012	15.26	15.33	15.22	15.33
2359	NYSE	NVG	Tue, Jan 24, 2012	15.17	15.31	15.17	15.31
2358	NYSE	NVG	Mon, Jan 23, 2012	15.15	15.29	15.15	15.28
2357	NYSE	NVG	Fri, Jan 20, 2012	15.21	15.21	15.12	15.20
2356	NYSE	NVG	Thu, Jan 19, 2012	15.12	15.21	15.12	15.21
2355	NYSE	NVG	Wed, Jan 18, 2012	15.15	15.24	15.06	15.14
2354	NYSE	NVG	Tue, Jan 17, 2012	15.19	15.19	15.04	15.09
2353	NYSE	NVG	Fri, Jan 13, 2012	15.02	15.18	15.02	15.18
2352	NYSE	NVG	Thu, Jan 12, 2012	15.15	15.15	15.00	15.09
2351	NYSE	NVG	Wed, Jan 11, 2012	15.00	15.09	14.96	15.09
2350	NYSE	NVG	Tue, Jan 10, 2012	15.10	15.10	14.98	15.01
2349	NYSE	NVG	Mon, Jan 9, 2012	14.88	15.10	14.88	15.05
2348	NYSE	NVG	Fri, Jan 6, 2012	14.84	14.99	14.84	14.95
2347	NYSE	NVG	Thu, Jan 5, 2012	14.94	15.00	14.82	14.89
2346	NYSE	NVG	Wed, Jan 4, 2012	15.15	15.15	14.87	14.88
2345	NYSE	NVG	Tue, Jan 3, 2012	15.07	15.11	14.96	15.10
2344	NYSE	NVG	Fri, Dec 30, 2011	15.10	15.15	14.96	15.05
2343	NYSE	NVG	Thu, Dec 29, 2011	14.92	15.08	14.91	15.00
2342	NYSE	NVG	Wed, Dec 28, 2011	15.05	15.07	14.91	14.97
2341	NYSE	NVG	Tue, Dec 27, 2011	14.99	15.04	14.95	15.04
2340	NYSE	NVG	Fri, Dec 23, 2011	14.94	14.98	14.94	14.97
2339	NYSE	NVG	Thu, Dec 22, 2011	14.91	14.94	14.87	14.94
2338	NYSE	NVG	Wed, Dec 21, 2011	14.76	14.91	14.76	14.91
2337	NYSE	NVG	Tue, Dec 20, 2011	14.79	14.84	14.74	14.84
2336	NYSE	NVG	Mon, Dec 19, 2011	14.73	14.75	14.65	14.74
2335	NYSE	NVG	Fri, Dec 16, 2011	14.58	14.73	14.58	14.73
2334	NYSE	NVG	Thu, Dec 15, 2011	14.73	14.73	14.59	14.59
2333	NYSE	NVG	Wed, Dec 14, 2011	14.71	14.71	14.61	14.70
2332	NYSE	NVG	Tue, Dec 13, 2011	14.65	14.68	14.56	14.57
2331	NYSE	NVG	Mon, Dec 12, 2011	14.67	14.75	14.64	14.69
2330	NYSE	NVG	Fri, Dec 9, 2011	14.52	14.74	14.48	14.69
2329	NYSE	NVG	Thu, Dec 8, 2011	14.95	14.95	14.49	14.54
2328	NYSE	NVG	Wed, Dec 7, 2011	14.87	14.89	14.72	14.87
2327	NYSE	NVG	Tue, Dec 6, 2011	14.74	14.81	14.70	14.81
2326	NYSE	NVG	Mon, Dec 5, 2011	14.68	14.75	14.67	14.73
2325	NYSE	NVG	Fri, Dec 2, 2011	14.71	14.75	14.67	14.71
2324	NYSE	NVG	Thu, Dec 1, 2011	14.63	14.71	14.62	14.71
2323	NYSE	NVG	Wed, Nov 30, 2011	14.57	14.70	14.57	14.66
2322	NYSE	NVG	Tue, Nov 29, 2011	14.72	14.73	14.57	14.57
2321	NYSE	NVG	Mon, Nov 28, 2011	14.75	14.75	14.57	14.68
2320	NYSE	NVG	Fri, Nov 25, 2011	14.69	14.74	14.58	14.71
2319	NYSE	NVG	Wed, Nov 23, 2011	14.63	14.71	14.55	14.71
2318	NYSE	NVG	Tue, Nov 22, 2011	14.63	14.73	14.61	14.68
2317	NYSE	NVG	Mon, Nov 21, 2011	14.65	14.65	14.54	14.63
2316	NYSE	NVG	Fri, Nov 18, 2011	14.61	14.64	14.55	14.64
2315	NYSE	NVG	Thu, Nov 17, 2011	14.55	14.61	14.55	14.61
2314	NYSE	NVG	Wed, Nov 16, 2011	14.59	14.61	14.52	14.59
2313	NYSE	NVG	Tue, Nov 15, 2011	14.60	14.61	14.50	14.58
2312	NYSE	NVG	Mon, Nov 14, 2011	14.56	14.60	14.51	14.56
2311	NYSE	NVG	Fri, Nov 11, 2011	14.56	14.56	14.45	14.55
2310	NYSE	NVG	Thu, Nov 10, 2011	14.42	14.55	14.41	14.53
2309	NYSE	NVG	Wed, Nov 9, 2011	14.58	14.58	14.45	14.51
2308	NYSE	NVG	Tue, Nov 8, 2011	14.49	14.56	14.44	14.56
2307	NYSE	NVG	Mon, Nov 7, 2011	14.37	14.49	14.37	14.47
2306	NYSE	NVG	Fri, Nov 4, 2011	14.38	14.47	14.33	14.42
2305	NYSE	NVG	Thu, Nov 3, 2011	14.27	14.38	14.27	14.33
2304	NYSE	NVG	Wed, Nov 2, 2011	14.40	14.40	14.30	14.32
2303	NYSE	NVG	Tue, Nov 1, 2011	14.33	14.47	14.30	14.33
2302	NYSE	NVG	Mon, Oct 31, 2011	14.18	14.38	14.18	14.32
2301	NYSE	NVG	Fri, Oct 28, 2011	14.21	14.29	14.21	14.27
2300	NYSE	NVG	Thu, Oct 27, 2011	14.36	14.36	14.24	14.27
2299	NYSE	NVG	Wed, Oct 26, 2011	14.30	14.32	14.18	14.27
2298	NYSE	NVG	Tue, Oct 25, 2011	14.24	14.32	14.22	14.24
2297	NYSE	NVG	Mon, Oct 24, 2011	14.31	14.43	14.27	14.27
2296	NYSE	NVG	Fri, Oct 21, 2011	14.31	14.38	14.22	14.35
2295	NYSE	NVG	Thu, Oct 20, 2011	14.23	14.30	14.18	14.26
2294	NYSE	NVG	Wed, Oct 19, 2011	14.27	14.37	14.16	14.23
2293	NYSE	NVG	Tue, Oct 18, 2011	14.14	14.24	14.14	14.23
2292	NYSE	NVG	Mon, Oct 17, 2011	14.20	14.27	14.13	14.22
2291	NYSE	NVG	Fri, Oct 14, 2011	14.04	14.25	14.02	14.25
2290	NYSE	NVG	Thu, Oct 13, 2011	14.02	14.10	13.94	14.01
2289	NYSE	NVG	Wed, Oct 12, 2011	14.32	14.32	13.94	13.97
2288	NYSE	NVG	Tue, Oct 11, 2011	14.32	14.38	14.28	14.29
2287	NYSE	NVG	Mon, Oct 10, 2011	14.20	14.38	14.11	14.38
2286	NYSE	NVG	Fri, Oct 7, 2011	14.23	14.27	14.09	14.14
2285	NYSE	NVG	Thu, Oct 6, 2011	14.23	14.29	14.20	14.26
2284	NYSE	NVG	Wed, Oct 5, 2011	14.24	14.33	14.24	14.26
2283	NYSE	NVG	Tue, Oct 4, 2011	14.49	14.50	14.20	14.27
2282	NYSE	NVG	Mon, Oct 3, 2011	14.41	14.49	14.41	14.47
2281	NYSE	NVG	Fri, Sep 30, 2011	14.40	14.44	14.39	14.39
2280	NYSE	NVG	Thu, Sep 29, 2011	14.40	14.42	14.36	14.37
2279	NYSE	NVG	Wed, Sep 28, 2011	14.39	14.46	14.32	14.32
2278	NYSE	NVG	Tue, Sep 27, 2011	14.43	14.43	14.34	14.35
2277	NYSE	NVG	Mon, Sep 26, 2011	14.42	14.45	14.36	14.37
2276	NYSE	NVG	Fri, Sep 23, 2011	14.30	14.45	14.30	14.44
2275	NYSE	NVG	Thu, Sep 22, 2011	14.27	14.45	14.24	14.36
2274	NYSE	NVG	Wed, Sep 21, 2011	14.33	14.42	14.28	14.30
2273	NYSE	NVG	Tue, Sep 20, 2011	14.25	14.40	14.21	14.36
2272	NYSE	NVG	Mon, Sep 19, 2011	14.25	14.30	14.21	14.28
2271	NYSE	NVG	Fri, Sep 16, 2011	14.28	14.33	14.21	14.21
2270	NYSE	NVG	Thu, Sep 15, 2011	14.33	14.37	14.23	14.23
2269	NYSE	NVG	Wed, Sep 14, 2011	14.32	14.39	14.31	14.32
2268	NYSE	NVG	Tue, Sep 13, 2011	14.35	14.42	14.31	14.31
2267	NYSE	NVG	Mon, Sep 12, 2011	14.39	14.46	14.39	14.41
2266	NYSE	NVG	Fri, Sep 9, 2011	14.36	14.44	14.28	14.44
2265	NYSE	NVG	Thu, Sep 8, 2011	14.25	14.39	14.25	14.34
2264	NYSE	NVG	Wed, Sep 7, 2011	14.30	14.41	14.26	14.27
2263	NYSE	NVG	Tue, Sep 6, 2011	14.21	14.38	14.21	14.29
2262	NYSE	NVG	Fri, Sep 2, 2011	14.33	14.34	14.25	14.29
2261	NYSE	NVG	Thu, Sep 1, 2011	14.33	14.38	14.26	14.29
2260	NYSE	NVG	Wed, Aug 31, 2011	14.23	14.30	14.22	14.26
2259	NYSE	NVG	Tue, Aug 30, 2011	14.20	14.27	14.20	14.21
2258	NYSE	NVG	Mon, Aug 29, 2011	14.10	14.25	14.09	14.20
2257	NYSE	NVG	Fri, Aug 26, 2011	14.06	14.20	14.01	14.09
2256	NYSE	NVG	Thu, Aug 25, 2011	14.22	14.22	14.01	14.10
2255	NYSE	NVG	Wed, Aug 24, 2011	14.11	14.23	14.11	14.18
2254	NYSE	NVG	Tue, Aug 23, 2011	14.03	14.13	14.00	14.13
2253	NYSE	NVG	Mon, Aug 22, 2011	13.98	14.05	13.85	13.97
2252	NYSE	NVG	Fri, Aug 19, 2011	13.85	14.00	13.85	13.95
2251	NYSE	NVG	Thu, Aug 18, 2011	14.07	14.07	13.92	13.95
2250	NYSE	NVG	Wed, Aug 17, 2011	13.96	14.11	13.96	14.08
2249	NYSE	NVG	Tue, Aug 16, 2011	13.93	14.03	13.92	14.01
2248	NYSE	NVG	Mon, Aug 15, 2011	13.77	14.02	13.77	13.94
2247	NYSE	NVG	Fri, Aug 12, 2011	13.68	13.81	13.68	13.72
2246	NYSE	NVG	Thu, Aug 11, 2011	13.52	13.72	13.51	13.72
2245	NYSE	NVG	Wed, Aug 10, 2011	13.37	13.80	13.37	13.68
2244	NYSE	NVG	Tue, Aug 9, 2011	13.13	13.59	13.13	13.52
2243	NYSE	NVG	Mon, Aug 8, 2011	13.44	13.72	13.12	13.27
2242	NYSE	NVG	Fri, Aug 5, 2011	13.83	13.99	13.65	13.75
2241	NYSE	NVG	Thu, Aug 4, 2011	13.91	14.03	13.85	13.85
2240	NYSE	NVG	Wed, Aug 3, 2011	13.95	13.97	13.82	13.97
2239	NYSE	NVG	Tue, Aug 2, 2011	13.87	14.00	13.83	13.89
2238	NYSE	NVG	Mon, Aug 1, 2011	13.73	13.93	13.73	13.82
2237	NYSE	NVG	Fri, Jul 29, 2011	13.65	13.65	13.49	13.60
2236	NYSE	NVG	Thu, Jul 28, 2011	13.74	13.81	13.65	13.65
2235	NYSE	NVG	Wed, Jul 27, 2011	14.09	14.09	13.75	13.77
2234	NYSE	NVG	Tue, Jul 26, 2011	14.20	14.21	14.03	14.07
2233	NYSE	NVG	Mon, Jul 25, 2011	14.15	14.20	14.09	14.19
2232	NYSE	NVG	Fri, Jul 22, 2011	14.29	14.29	14.19	14.19
2231	NYSE	NVG	Thu, Jul 21, 2011	14.29	14.35	14.26	14.29
2230	NYSE	NVG	Wed, Jul 20, 2011	14.11	14.35	14.11	14.31
2229	NYSE	NVG	Tue, Jul 19, 2011	14.07	14.20	14.03	14.15
2228	NYSE	NVG	Mon, Jul 18, 2011	14.03	14.08	14.00	14.03
2227	NYSE	NVG	Fri, Jul 15, 2011	14.10	14.12	14.05	14.07
2226	NYSE	NVG	Thu, Jul 14, 2011	14.17	14.20	14.08	14.11
2225	NYSE	NVG	Wed, Jul 13, 2011	14.22	14.26	14.17	14.18
2224	NYSE	NVG	Tue, Jul 12, 2011	14.15	14.23	14.15	14.23
2223	NYSE	NVG	Mon, Jul 11, 2011	14.15	14.18	14.02	14.18
2222	NYSE	NVG	Fri, Jul 8, 2011	14.00	14.15	14.00	14.15
2221	NYSE	NVG	Thu, Jul 7, 2011	13.96	14.10	13.96	14.04
2220	NYSE	NVG	Wed, Jul 6, 2011	14.05	14.08	13.97	14.01
2219	NYSE	NVG	Tue, Jul 5, 2011	13.97	14.05	13.97	14.03
2218	NYSE	NVG	Fri, Jul 1, 2011	13.90	13.97	13.90	13.97
2217	NYSE	NVG	Thu, Jun 30, 2011	13.88	13.94	13.84	13.85
2216	NYSE	NVG	Wed, Jun 29, 2011	13.98	14.01	13.87	13.90
2215	NYSE	NVG	Tue, Jun 28, 2011	14.01	14.05	13.96	14.02
2214	NYSE	NVG	Mon, Jun 27, 2011	14.01	14.06	13.94	13.96
2213	NYSE	NVG	Fri, Jun 24, 2011	14.10	14.10	13.96	14.02
2212	NYSE	NVG	Thu, Jun 23, 2011	14.00	14.14	13.99	14.06
2211	NYSE	NVG	Wed, Jun 22, 2011	13.94	14.00	13.89	14.00
2210	NYSE	NVG	Tue, Jun 21, 2011	13.81	13.97	13.81	13.89
2209	NYSE	NVG	Mon, Jun 20, 2011	13.76	13.87	13.71	13.83
2208	NYSE	NVG	Fri, Jun 17, 2011	13.78	13.86	13.71	13.81
2207	NYSE	NVG	Thu, Jun 16, 2011	13.78	13.90	13.70	13.77
2206	NYSE	NVG	Wed, Jun 15, 2011	13.82	13.87	13.76	13.76
2205	NYSE	NVG	Tue, Jun 14, 2011	13.75	13.88	13.75	13.86
2204	NYSE	NVG	Mon, Jun 13, 2011	13.80	13.83	13.73	13.77
2203	NYSE	NVG	Fri, Jun 10, 2011	13.91	13.94	13.86	13.89
2202	NYSE	NVG	Thu, Jun 9, 2011	13.89	13.92	13.81	13.92
2201	NYSE	NVG	Wed, Jun 8, 2011	13.90	13.90	13.80	13.85
2200	NYSE	NVG	Tue, Jun 7, 2011	13.92	13.92	13.84	13.85
2199	NYSE	NVG	Mon, Jun 6, 2011	13.80	13.90	13.79	13.86
2198	NYSE	NVG	Fri, Jun 3, 2011	13.76	13.87	13.76	13.85
2197	NYSE	NVG	Thu, Jun 2, 2011	13.80	13.84	13.78	13.80
2196	NYSE	NVG	Wed, Jun 1, 2011	13.97	14.00	13.83	13.83
2195	NYSE	NVG	Tue, May 31, 2011	13.96	14.01	13.88	13.94
2194	NYSE	NVG	Fri, May 27, 2011	13.88	13.95	13.83	13.90
2193	NYSE	NVG	Thu, May 26, 2011	13.82	13.87	13.71	13.87
2192	NYSE	NVG	Wed, May 25, 2011	13.77	13.81	13.72	13.77
2191	NYSE	NVG	Tue, May 24, 2011	13.74	13.88	13.72	13.77
2190	NYSE	NVG	Mon, May 23, 2011	13.73	13.88	13.73	13.77
2189	NYSE	NVG	Fri, May 20, 2011	13.76	13.85	13.72	13.76
2188	NYSE	NVG	Thu, May 19, 2011	13.78	13.83	13.73	13.73
2187	NYSE	NVG	Wed, May 18, 2011	13.75	13.82	13.75	13.80
2186	NYSE	NVG	Tue, May 17, 2011	13.85	13.86	13.76	13.77
2185	NYSE	NVG	Mon, May 16, 2011	13.81	13.90	13.77	13.82
2184	NYSE	NVG	Fri, May 13, 2011	13.78	13.84	13.76	13.79
2183	NYSE	NVG	Thu, May 12, 2011	13.74	13.80	13.69	13.80
2182	NYSE	NVG	Wed, May 11, 2011	13.75	13.78	13.69	13.78
2181	NYSE	NVG	Tue, May 10, 2011	13.68	13.82	13.64	13.81
2180	NYSE	NVG	Mon, May 9, 2011	13.68	13.74	13.63	13.70
2179	NYSE	NVG	Fri, May 6, 2011	13.68	13.75	13.63	13.68
2178	NYSE	NVG	Thu, May 5, 2011	13.66	13.69	13.61	13.63
2177	NYSE	NVG	Wed, May 4, 2011	13.64	13.71	13.60	13.70
2176	NYSE	NVG	Tue, May 3, 2011	13.58	13.68	13.53	13.62
2175	NYSE	NVG	Mon, May 2, 2011	13.59	13.66	13.52	13.63
2174	NYSE	NVG	Fri, Apr 29, 2011	13.46	13.59	13.41	13.53
2173	NYSE	NVG	Thu, Apr 28, 2011	13.46	13.50	13.39	13.49
2172	NYSE	NVG	Wed, Apr 27, 2011	13.28	13.40	13.27	13.40
2171	NYSE	NVG	Tue, Apr 26, 2011	13.28	13.30	13.20	13.22
2170	NYSE	NVG	Mon, Apr 25, 2011	13.22	13.28	13.20	13.27
2169	NYSE	NVG	Thu, Apr 21, 2011	13.34	13.35	13.19	13.26
2168	NYSE	NVG	Wed, Apr 20, 2011	13.19	13.33	13.18	13.33
2167	NYSE	NVG	Tue, Apr 19, 2011	13.25	13.25	13.14	13.16
2166	NYSE	NVG	Mon, Apr 18, 2011	13.22	13.27	13.15	13.21
2165	NYSE	NVG	Fri, Apr 15, 2011	13.18	13.22	13.12	13.21
2164	NYSE	NVG	Thu, Apr 14, 2011	13.30	13.32	13.14	13.17
2163	NYSE	NVG	Wed, Apr 13, 2011	13.32	13.42	13.30	13.30
2162	NYSE	NVG	Tue, Apr 12, 2011	13.35	13.39	13.30	13.39
2161	NYSE	NVG	Mon, Apr 11, 2011	13.42	13.42	13.35	13.35
2160	NYSE	NVG	Fri, Apr 8, 2011	13.44	13.44	13.33	13.42
2159	NYSE	NVG	Thu, Apr 7, 2011	13.34	13.39	13.28	13.37
2158	NYSE	NVG	Wed, Apr 6, 2011	13.28	13.41	13.28	13.34
2157	NYSE	NVG	Tue, Apr 5, 2011	13.31	13.36	13.27	13.30
2156	NYSE	NVG	Mon, Apr 4, 2011	13.32	13.39	13.27	13.38
2155	NYSE	NVG	Fri, Apr 1, 2011	13.43	13.49	13.20	13.37
2154	NYSE	NVG	Thu, Mar 31, 2011	13.38	13.44	13.36	13.38
2153	NYSE	NVG	Wed, Mar 30, 2011	13.50	13.53	13.42	13.42
2152	NYSE	NVG	Tue, Mar 29, 2011	13.43	13.52	13.43	13.52
2151	NYSE	NVG	Mon, Mar 28, 2011	13.49	13.49	13.43	13.47
2150	NYSE	NVG	Fri, Mar 25, 2011	13.33	13.45	13.32	13.45
2149	NYSE	NVG	Thu, Mar 24, 2011	13.36	13.39	13.31	13.33
2148	NYSE	NVG	Wed, Mar 23, 2011	13.26	13.32	13.24	13.30
2147	NYSE	NVG	Tue, Mar 22, 2011	13.32	13.33	13.21	13.21
2146	NYSE	NVG	Mon, Mar 21, 2011	13.36	13.37	13.28	13.37
2145	NYSE	NVG	Fri, Mar 18, 2011	13.32	13.35	13.26	13.35
2144	NYSE	NVG	Thu, Mar 17, 2011	13.23	13.32	13.16	13.32
2143	NYSE	NVG	Wed, Mar 16, 2011	13.23	13.31	13.16	13.19
2142	NYSE	NVG	Tue, Mar 15, 2011	13.16	13.30	13.15	13.28
2141	NYSE	NVG	Mon, Mar 14, 2011	13.17	13.23	13.16	13.19
2140	NYSE	NVG	Fri, Mar 11, 2011	13.24	13.25	13.15	13.15
2139	NYSE	NVG	Thu, Mar 10, 2011	13.21	13.35	13.21	13.26
2138	NYSE	NVG	Wed, Mar 9, 2011	13.31	13.32	13.24	13.27
2137	NYSE	NVG	Tue, Mar 8, 2011	13.30	13.37	13.26	13.26
2136	NYSE	NVG	Mon, Mar 7, 2011	13.38	13.49	13.33	13.33
2135	NYSE	NVG	Fri, Mar 4, 2011	13.34	13.46	13.31	13.43
2134	NYSE	NVG	Thu, Mar 3, 2011	13.45	13.46	13.30	13.33
2133	NYSE	NVG	Wed, Mar 2, 2011	13.43	13.50	13.40	13.45
2132	NYSE	NVG	Tue, Mar 1, 2011	13.39	13.44	13.34	13.41
2131	NYSE	NVG	Mon, Feb 28, 2011	13.24	13.37	13.22	13.37
2130	NYSE	NVG	Fri, Feb 25, 2011	13.27	13.38	13.19	13.22
2129	NYSE	NVG	Thu, Feb 24, 2011	13.19	13.35	13.19	13.30
2128	NYSE	NVG	Wed, Feb 23, 2011	13.12	13.29	13.12	13.21
2127	NYSE	NVG	Tue, Feb 22, 2011	13.19	13.19	13.10	13.11
2126	NYSE	NVG	Fri, Feb 18, 2011	13.23	13.28	13.22	13.26
2125	NYSE	NVG	Thu, Feb 17, 2011	13.25	13.33	13.20	13.24
2124	NYSE	NVG	Wed, Feb 16, 2011	13.24	13.42	13.22	13.28
2123	NYSE	NVG	Tue, Feb 15, 2011	13.15	13.41	13.14	13.26
2122	NYSE	NVG	Mon, Feb 14, 2011	13.30	13.33	13.10	13.15
2121	NYSE	NVG	Fri, Feb 11, 2011	13.30	13.43	13.26	13.36
2120	NYSE	NVG	Thu, Feb 10, 2011	13.23	13.40	13.23	13.33
2119	NYSE	NVG	Wed, Feb 9, 2011	13.30	13.36	13.24	13.28
2118	NYSE	NVG	Tue, Feb 8, 2011	13.24	13.37	13.23	13.36
2117	NYSE	NVG	Mon, Feb 7, 2011	13.26	13.34	13.21	13.24
2116	NYSE	NVG	Fri, Feb 4, 2011	13.25	13.30	13.22	13.29
2115	NYSE	NVG	Thu, Feb 3, 2011	13.33	13.40	13.28	13.28
2114	NYSE	NVG	Wed, Feb 2, 2011	13.53	13.54	13.40	13.40
2113	NYSE	NVG	Tue, Feb 1, 2011	13.53	13.60	13.43	13.43
2112	NYSE	NVG	Mon, Jan 31, 2011	13.37	13.59	13.32	13.47
2111	NYSE	NVG	Fri, Jan 28, 2011	13.45	13.50	13.31	13.37
2110	NYSE	NVG	Thu, Jan 27, 2011	13.49	13.55	13.39	13.48
2109	NYSE	NVG	Wed, Jan 26, 2011	13.45	13.50	13.44	13.49
2108	NYSE	NVG	Tue, Jan 25, 2011	13.35	13.52	13.31	13.45
2107	NYSE	NVG	Mon, Jan 24, 2011	13.25	13.45	13.24	13.35
2106	NYSE	NVG	Fri, Jan 21, 2011	13.13	13.32	13.13	13.25
2105	NYSE	NVG	Thu, Jan 20, 2011	12.88	13.13	12.79	13.12
2104	NYSE	NVG	Wed, Jan 19, 2011	12.87	12.97	12.76	12.88
2103	NYSE	NVG	Tue, Jan 18, 2011	12.70	13.13	12.50	12.86
2102	NYSE	NVG	Fri, Jan 14, 2011	12.83	12.83	12.50	12.63
2101	NYSE	NVG	Thu, Jan 13, 2011	13.04	13.07	12.84	12.90
2100	NYSE	NVG	Wed, Jan 12, 2011	13.20	13.23	13.05	13.08
2099	NYSE	NVG	Tue, Jan 11, 2011	13.25	13.40	13.25	13.29
2098	NYSE	NVG	Mon, Jan 10, 2011	13.41	13.46	13.25	13.26
2097	NYSE	NVG	Fri, Jan 7, 2011	13.40	13.45	13.40	13.42
2096	NYSE	NVG	Thu, Jan 6, 2011	13.46	13.48	13.39	13.40
2095	NYSE	NVG	Wed, Jan 5, 2011	13.69	13.69	13.49	13.53
2094	NYSE	NVG	Tue, Jan 4, 2011	13.57	13.73	13.57	13.67
2093	NYSE	NVG	Mon, Jan 3, 2011	13.58	13.68	13.46	13.62
2092	NYSE	NVG	Fri, Dec 31, 2010	13.45	13.65	13.41	13.60
2091	NYSE	NVG	Thu, Dec 30, 2010	13.21	13.39	13.19	13.39
2090	NYSE	NVG	Wed, Dec 29, 2010	13.33	13.35	13.17	13.23
2089	NYSE	NVG	Tue, Dec 28, 2010	13.28	13.33	13.18	13.28
2088	NYSE	NVG	Mon, Dec 27, 2010	13.30	13.31	13.19	13.21
2087	NYSE	NVG	Thu, Dec 23, 2010	13.25	13.49	13.22	13.26
2086	NYSE	NVG	Wed, Dec 22, 2010	13.25	13.43	13.21	13.30
2085	NYSE	NVG	Tue, Dec 21, 2010	13.22	13.32	13.10	13.32
2084	NYSE	NVG	Mon, Dec 20, 2010	13.70	13.73	13.22	13.22
2083	NYSE	NVG	Fri, Dec 17, 2010	13.42	13.83	13.42	13.75
2082	NYSE	NVG	Thu, Dec 16, 2010	13.15	13.55	13.09	13.54
2081	NYSE	NVG	Wed, Dec 15, 2010	12.86	13.18	12.82	13.15
2080	NYSE	NVG	Tue, Dec 14, 2010	13.17	13.17	12.87	12.89
2079	NYSE	NVG	Mon, Dec 13, 2010	13.30	13.30	13.11	13.21
2078	NYSE	NVG	Fri, Dec 10, 2010	13.42	13.43	13.16	13.30
2077	NYSE	NVG	Thu, Dec 9, 2010	13.39	13.50	13.30	13.35
2076	NYSE	NVG	Wed, Dec 8, 2010	13.60	13.60	13.35	13.39
2075	NYSE	NVG	Tue, Dec 7, 2010	13.74	13.77	13.34	13.60
2074	NYSE	NVG	Mon, Dec 6, 2010	14.11	14.11	13.77	13.80
2073	NYSE	NVG	Fri, Dec 3, 2010	14.07	14.17	14.03	14.07
2072	NYSE	NVG	Thu, Dec 2, 2010	14.10	14.30	14.01	14.08
2071	NYSE	NVG	Wed, Dec 1, 2010	14.30	14.33	14.07	14.13
2070	NYSE	NVG	Tue, Nov 30, 2010	14.18	14.25	14.17	14.21
2069	NYSE	NVG	Mon, Nov 29, 2010	14.13	14.25	14.13	14.19
2068	NYSE	NVG	Fri, Nov 26, 2010	14.16	14.24	14.02	14.15
2067	NYSE	NVG	Wed, Nov 24, 2010	14.47	14.47	14.19	14.19
2066	NYSE	NVG	Tue, Nov 23, 2010	14.28	14.39	14.22	14.38
2065	NYSE	NVG	Mon, Nov 22, 2010	14.04	14.30	13.97	14.30
2064	NYSE	NVG	Fri, Nov 19, 2010	13.66	14.12	13.65	14.09
2063	NYSE	NVG	Thu, Nov 18, 2010	13.98	14.07	13.57	13.80
2062	NYSE	NVG	Wed, Nov 17, 2010	13.90	14.30	13.77	13.98
2061	NYSE	NVG	Tue, Nov 16, 2010	13.21	13.97	13.06	13.81
2060	NYSE	NVG	Mon, Nov 15, 2010	13.90	13.95	13.28	13.43
2059	NYSE	NVG	Fri, Nov 12, 2010	13.84	14.04	13.71	13.97
2058	NYSE	NVG	Thu, Nov 11, 2010	14.05	14.07	13.29	13.83
2057	NYSE	NVG	Wed, Nov 10, 2010	14.49	14.49	13.81	14.10
2056	NYSE	NVG	Tue, Nov 9, 2010	14.60	14.63	14.44	14.55
2055	NYSE	NVG	Mon, Nov 8, 2010	14.74	14.75	14.55	14.65
2054	NYSE	NVG	Fri, Nov 5, 2010	14.76	14.79	14.72	14.77
2053	NYSE	NVG	Thu, Nov 4, 2010	14.79	14.84	14.70	14.78
2052	NYSE	NVG	Wed, Nov 3, 2010	14.80	14.82	14.75	14.82
2051	NYSE	NVG	Tue, Nov 2, 2010	14.82	14.82	14.75	14.80
2050	NYSE	NVG	Mon, Nov 1, 2010	14.78	14.85	14.73	14.78
2049	NYSE	NVG	Fri, Oct 29, 2010	14.77	14.83	14.77	14.80
2048	NYSE	NVG	Thu, Oct 28, 2010	14.77	14.84	14.77	14.83
2047	NYSE	NVG	Wed, Oct 27, 2010	14.82	14.83	14.76	14.81
2046	NYSE	NVG	Tue, Oct 26, 2010	14.77	14.85	14.77	14.84
2045	NYSE	NVG	Mon, Oct 25, 2010	14.75	14.81	14.73	14.80
2044	NYSE	NVG	Fri, Oct 22, 2010	14.68	14.75	14.67	14.75
2043	NYSE	NVG	Thu, Oct 21, 2010	14.68	14.73	14.65	14.73
2042	NYSE	NVG	Wed, Oct 20, 2010	14.63	14.67	14.54	14.67
2041	NYSE	NVG	Tue, Oct 19, 2010	14.79	14.88	14.60	14.65
2040	NYSE	NVG	Mon, Oct 18, 2010	14.80	14.80	14.69	14.79
2039	NYSE	NVG	Fri, Oct 15, 2010	14.81	14.84	14.67	14.77
2038	NYSE	NVG	Thu, Oct 14, 2010	14.82	14.85	14.78	14.83
2037	NYSE	NVG	Wed, Oct 13, 2010	14.86	14.94	14.75	14.85
2036	NYSE	NVG	Tue, Oct 12, 2010	14.87	14.94	14.82	14.93
2035	NYSE	NVG	Mon, Oct 11, 2010	14.94	15.01	14.80	14.93
2034	NYSE	NVG	Fri, Oct 8, 2010	15.01	15.02	14.89	14.98
2033	NYSE	NVG	Thu, Oct 7, 2010	15.07	15.12	14.97	15.05
2032	NYSE	NVG	Wed, Oct 6, 2010	15.06	15.14	15.01	15.09
2031	NYSE	NVG	Tue, Oct 5, 2010	15.10	15.15	15.01	15.12
2030	NYSE	NVG	Mon, Oct 4, 2010	15.16	15.16	15.01	15.13
2029	NYSE	NVG	Fri, Oct 1, 2010	15.17	15.17	15.05	15.14
2028	NYSE	NVG	Thu, Sep 30, 2010	15.08	15.14	15.03	15.11
2027	NYSE	NVG	Wed, Sep 29, 2010	15.02	15.13	15.02	15.09
2026	NYSE	NVG	Tue, Sep 28, 2010	14.95	15.08	14.91	15.08
2025	NYSE	NVG	Mon, Sep 27, 2010	14.98	15.01	14.90	14.97
2024	NYSE	NVG	Fri, Sep 24, 2010	15.11	15.19	14.91	15.00
2023	NYSE	NVG	Thu, Sep 23, 2010	15.09	15.16	15.07	15.16
2022	NYSE	NVG	Wed, Sep 22, 2010	15.08	15.09	15.01	15.09
2021	NYSE	NVG	Tue, Sep 21, 2010	14.98	15.10	14.95	15.10
2020	NYSE	NVG	Mon, Sep 20, 2010	14.90	15.04	14.90	14.98
2019	NYSE	NVG	Fri, Sep 17, 2010	14.71	15.00	14.70	14.93
2018	NYSE	NVG	Thu, Sep 16, 2010	14.90	15.00	14.65	14.76
2017	NYSE	NVG	Wed, Sep 15, 2010	15.26	15.31	14.89	14.91
2016	NYSE	NVG	Tue, Sep 14, 2010	15.22	15.37	15.18	15.26
2015	NYSE	NVG	Mon, Sep 13, 2010	15.26	15.29	15.20	15.24
2014	NYSE	NVG	Fri, Sep 10, 2010	15.23	15.34	15.23	15.32
2013	NYSE	NVG	Thu, Sep 9, 2010	15.21	15.30	15.20	15.26
2012	NYSE	NVG	Wed, Sep 8, 2010	15.24	15.30	15.19	15.25
2011	NYSE	NVG	Tue, Sep 7, 2010	15.24	15.30	15.21	15.23
2010	NYSE	NVG	Fri, Sep 3, 2010	15.33	15.35	15.19	15.27
2009	NYSE	NVG	Thu, Sep 2, 2010	15.31	15.33	15.24	15.31
2008	NYSE	NVG	Wed, Sep 1, 2010	15.27	15.34	15.24	15.25
2007	NYSE	NVG	Tue, Aug 31, 2010	15.13	15.26	15.10	15.20
2006	NYSE	NVG	Mon, Aug 30, 2010	15.31	15.31	15.12	15.14
2005	NYSE	NVG	Fri, Aug 27, 2010	15.25	15.34	15.24	15.34
2004	NYSE	NVG	Thu, Aug 26, 2010	15.15	15.25	15.15	15.25
2003	NYSE	NVG	Wed, Aug 25, 2010	15.19	15.22	15.14	15.15
2002	NYSE	NVG	Tue, Aug 24, 2010	15.18	15.23	15.14	15.21
2001	NYSE	NVG	Mon, Aug 23, 2010	15.17	15.24	15.17	15.20
2000	NYSE	NVG	Fri, Aug 20, 2010	15.23	15.23	15.16	15.17
1999	NYSE	NVG	Thu, Aug 19, 2010	15.21	15.24	15.16	15.21
1998	NYSE	NVG	Wed, Aug 18, 2010	15.22	15.25	15.15	15.21
1997	NYSE	NVG	Tue, Aug 17, 2010	15.23	15.25	15.14	15.22
1996	NYSE	NVG	Mon, Aug 16, 2010	15.20	15.20	15.15	15.20
1995	NYSE	NVG	Fri, Aug 13, 2010	15.03	15.25	14.96	15.20
1994	NYSE	NVG	Thu, Aug 12, 2010	15.14	15.20	14.92	14.96
1993	NYSE	NVG	Wed, Aug 11, 2010	15.01	15.15	15.01	15.15
1992	NYSE	NVG	Tue, Aug 10, 2010	15.16	15.16	15.05	15.12
1991	NYSE	NVG	Mon, Aug 9, 2010	15.08	15.15	15.03	15.13
1990	NYSE	NVG	Fri, Aug 6, 2010	14.98	15.15	14.98	15.11
1989	NYSE	NVG	Thu, Aug 5, 2010	14.94	14.99	14.93	14.99
1988	NYSE	NVG	Wed, Aug 4, 2010	15.00	15.00	14.94	14.98
1987	NYSE	NVG	Tue, Aug 3, 2010	15.00	15.00	14.95	15.00
1986	NYSE	NVG	Mon, Aug 2, 2010	14.99	15.04	14.95	14.99
1985	NYSE	NVG	Fri, Jul 30, 2010	14.81	14.96	14.81	14.95
1984	NYSE	NVG	Thu, Jul 29, 2010	14.83	14.87	14.83	14.87
1983	NYSE	NVG	Wed, Jul 28, 2010	14.81	14.94	14.80	14.80
1982	NYSE	NVG	Tue, Jul 27, 2010	14.87	14.88	14.75	14.81
1981	NYSE	NVG	Mon, Jul 26, 2010	14.85	14.86	14.75	14.86
1980	NYSE	NVG	Fri, Jul 23, 2010	14.77	14.85	14.76	14.85
1979	NYSE	NVG	Thu, Jul 22, 2010	14.75	14.80	14.71	14.80
1978	NYSE	NVG	Wed, Jul 21, 2010	14.74	14.75	14.67	14.75
1977	NYSE	NVG	Tue, Jul 20, 2010	14.65	14.71	14.61	14.69
1976	NYSE	NVG	Mon, Jul 19, 2010	14.64	14.67	14.61	14.67
1975	NYSE	NVG	Fri, Jul 16, 2010	14.62	14.64	14.60	14.64
1974	NYSE	NVG	Thu, Jul 15, 2010	14.69	14.79	14.59	14.63
1973	NYSE	NVG	Wed, Jul 14, 2010	14.63	14.64	14.59	14.62
1972	NYSE	NVG	Tue, Jul 13, 2010	14.74	14.78	14.61	14.65
1971	NYSE	NVG	Mon, Jul 12, 2010	14.71	14.80	14.70	14.78
1970	NYSE	NVG	Fri, Jul 9, 2010	14.63	14.76	14.61	14.76
1969	NYSE	NVG	Thu, Jul 8, 2010	14.72	14.77	14.56	14.56
1968	NYSE	NVG	Wed, Jul 7, 2010	14.77	14.77	14.62	14.72
1967	NYSE	NVG	Tue, Jul 6, 2010	14.80	14.80	14.69	14.72
1966	NYSE	NVG	Fri, Jul 2, 2010	14.59	14.75	14.59	14.72
1965	NYSE	NVG	Thu, Jul 1, 2010	14.60	14.70	14.55	14.60
1964	NYSE	NVG	Wed, Jun 30, 2010	14.61	14.61	14.52	14.58
1963	NYSE	NVG	Tue, Jun 29, 2010	14.52	14.66	14.50	14.57
1962	NYSE	NVG	Mon, Jun 28, 2010	14.61	14.61	14.55	14.58
1961	NYSE	NVG	Fri, Jun 25, 2010	14.57	14.59	14.52	14.59
1960	NYSE	NVG	Thu, Jun 24, 2010	14.56	14.59	14.51	14.59
1959	NYSE	NVG	Wed, Jun 23, 2010	14.37	14.59	14.37	14.59
1958	NYSE	NVG	Tue, Jun 22, 2010	14.37	14.45	14.31	14.44
1957	NYSE	NVG	Mon, Jun 21, 2010	14.36	14.47	14.30	14.37
1956	NYSE	NVG	Fri, Jun 18, 2010	14.41	14.43	14.33	14.37
1955	NYSE	NVG	Thu, Jun 17, 2010	14.42	14.47	14.36	14.43
1954	NYSE	NVG	Wed, Jun 16, 2010	14.48	14.51	14.43	14.43
1953	NYSE	NVG	Tue, Jun 15, 2010	14.53	14.55	14.48	14.48
1952	NYSE	NVG	Mon, Jun 14, 2010	14.53	14.55	14.48	14.53
1951	NYSE	NVG	Fri, Jun 11, 2010	14.51	14.54	14.40	14.54
1950	NYSE	NVG	Thu, Jun 10, 2010	14.52	14.56	14.50	14.55
1949	NYSE	NVG	Wed, Jun 9, 2010	14.52	14.55	14.49	14.50
1948	NYSE	NVG	Tue, Jun 8, 2010	14.45	14.52	14.45	14.51
1947	NYSE	NVG	Mon, Jun 7, 2010	14.52	14.52	14.45	14.50
1946	NYSE	NVG	Fri, Jun 4, 2010	14.50	14.57	14.47	14.54
1945	NYSE	NVG	Thu, Jun 3, 2010	14.53	14.56	14.49	14.51
1944	NYSE	NVG	Wed, Jun 2, 2010	14.54	14.56	14.45	14.54
1943	NYSE	NVG	Tue, Jun 1, 2010	14.45	14.52	14.44	14.47
1942	NYSE	NVG	Fri, May 28, 2010	14.42	14.45	14.28	14.45
1941	NYSE	NVG	Thu, May 27, 2010	14.32	14.44	14.17	14.34
1940	NYSE	NVG	Wed, May 26, 2010	14.28	14.37	14.25	14.34
1939	NYSE	NVG	Tue, May 25, 2010	14.18	14.29	14.10	14.29
1938	NYSE	NVG	Mon, May 24, 2010	14.23	14.38	14.18	14.23
1937	NYSE	NVG	Fri, May 21, 2010	14.16	14.32	13.96	14.27
1936	NYSE	NVG	Thu, May 20, 2010	14.28	14.29	14.09	14.18
1935	NYSE	NVG	Wed, May 19, 2010	14.19	14.41	14.19	14.31
1934	NYSE	NVG	Tue, May 18, 2010	14.30	14.35	14.22	14.30
1933	NYSE	NVG	Mon, May 17, 2010	14.46	14.49	14.24	14.30
1932	NYSE	NVG	Fri, May 14, 2010	14.33	14.50	14.33	14.50
1931	NYSE	NVG	Thu, May 13, 2010	14.42	14.50	14.42	14.45
1930	NYSE	NVG	Wed, May 12, 2010	14.34	14.45	14.32	14.45
1929	NYSE	NVG	Tue, May 11, 2010	14.37	14.47	14.33	14.42
1928	NYSE	NVG	Mon, May 10, 2010	14.31	14.47	14.31	14.37
1927	NYSE	NVG	Fri, May 7, 2010	14.27	14.36	13.71	14.22
1926	NYSE	NVG	Thu, May 6, 2010	14.56	14.56	14.17	14.22
1925	NYSE	NVG	Wed, May 5, 2010	14.60	14.64	14.52	14.52
1924	NYSE	NVG	Tue, May 4, 2010	14.58	14.67	14.56	14.60
1923	NYSE	NVG	Mon, May 3, 2010	14.55	14.60	14.55	14.60
1922	NYSE	NVG	Fri, Apr 30, 2010	14.50	14.55	14.46	14.53
1921	NYSE	NVG	Thu, Apr 29, 2010	14.58	14.62	14.50	14.50
1920	NYSE	NVG	Wed, Apr 28, 2010	14.58	14.62	14.54	14.62
1919	NYSE	NVG	Tue, Apr 27, 2010	14.51	14.58	14.50	14.52
1918	NYSE	NVG	Mon, Apr 26, 2010	14.45	14.63	14.45	14.56
1917	NYSE	NVG	Fri, Apr 23, 2010	14.44	14.53	14.44	14.47
1916	NYSE	NVG	Thu, Apr 22, 2010	14.33	14.44	14.30	14.42
1915	NYSE	NVG	Wed, Apr 21, 2010	14.26	14.39	14.23	14.31
1914	NYSE	NVG	Tue, Apr 20, 2010	14.28	14.34	14.20	14.31
1913	NYSE	NVG	Mon, Apr 19, 2010	14.25	14.30	14.22	14.24
1912	NYSE	NVG	Fri, Apr 16, 2010	14.26	14.35	14.25	14.26
1911	NYSE	NVG	Thu, Apr 15, 2010	14.34	14.35	14.27	14.29
1910	NYSE	NVG	Wed, Apr 14, 2010	14.26	14.40	14.23	14.39
1909	NYSE	NVG	Tue, Apr 13, 2010	14.28	14.29	14.22	14.29
1908	NYSE	NVG	Mon, Apr 12, 2010	14.34	14.37	14.28	14.30
1907	NYSE	NVG	Fri, Apr 9, 2010	14.26	14.39	14.26	14.39
1906	NYSE	NVG	Thu, Apr 8, 2010	14.28	14.34	14.25	14.26
1905	NYSE	NVG	Wed, Apr 7, 2010	14.26	14.33	14.25	14.28
1904	NYSE	NVG	Tue, Apr 6, 2010	14.18	14.27	14.18	14.26
1903	NYSE	NVG	Mon, Apr 5, 2010	14.40	14.43	14.19	14.20
1902	NYSE	NVG	Thu, Apr 1, 2010	14.32	14.37	14.32	14.35
1901	NYSE	NVG	Wed, Mar 31, 2010	14.17	14.28	14.14	14.28
1900	NYSE	NVG	Tue, Mar 30, 2010	14.21	14.23	14.15	14.21
1899	NYSE	NVG	Mon, Mar 29, 2010	14.30	14.30	14.17	14.17
1898	NYSE	NVG	Fri, Mar 26, 2010	14.28	14.30	14.25	14.25
1897	NYSE	NVG	Thu, Mar 25, 2010	14.26	14.39	14.19	14.32
1896	NYSE	NVG	Wed, Mar 24, 2010	14.19	14.29	14.19	14.22
1895	NYSE	NVG	Tue, Mar 23, 2010	14.20	14.28	14.19	14.27
1894	NYSE	NVG	Mon, Mar 22, 2010	14.12	14.20	14.08	14.20
1893	NYSE	NVG	Fri, Mar 19, 2010	14.15	14.20	14.08	14.17
1892	NYSE	NVG	Thu, Mar 18, 2010	14.20	14.25	14.01	14.09
1891	NYSE	NVG	Wed, Mar 17, 2010	14.21	14.27	14.17	14.19
1890	NYSE	NVG	Tue, Mar 16, 2010	14.28	14.30	14.17	14.20
1889	NYSE	NVG	Mon, Mar 15, 2010	14.25	14.29	14.21	14.28
1888	NYSE	NVG	Fri, Mar 12, 2010	14.19	14.28	14.19	14.25
1887	NYSE	NVG	Thu, Mar 11, 2010	14.21	14.23	14.20	14.20
1886	NYSE	NVG	Wed, Mar 10, 2010	14.33	14.33	14.27	14.30
1885	NYSE	NVG	Tue, Mar 9, 2010	14.34	14.36	14.27	14.28
1884	NYSE	NVG	Mon, Mar 8, 2010	14.31	14.36	14.31	14.33
1883	NYSE	NVG	Fri, Mar 5, 2010	14.26	14.32	14.25	14.31
1882	NYSE	NVG	Thu, Mar 4, 2010	14.29	14.31	14.25	14.30
1881	NYSE	NVG	Wed, Mar 3, 2010	14.22	14.30	14.22	14.28
1880	NYSE	NVG	Tue, Mar 2, 2010	14.30	14.31	14.16	14.26
1879	NYSE	NVG	Mon, Mar 1, 2010	14.32	14.32	14.18	14.26
1878	NYSE	NVG	Fri, Feb 26, 2010	14.16	14.27	14.15	14.27
1877	NYSE	NVG	Thu, Feb 25, 2010	14.15	14.20	14.06	14.20
1876	NYSE	NVG	Wed, Feb 24, 2010	14.06	14.19	14.05	14.15
1875	NYSE	NVG	Tue, Feb 23, 2010	13.99	14.15	13.99	14.14
1874	NYSE	NVG	Mon, Feb 22, 2010	14.26	14.26	14.05	14.07
1873	NYSE	NVG	Fri, Feb 19, 2010	14.23	14.31	14.23	14.30
1872	NYSE	NVG	Thu, Feb 18, 2010	14.30	14.34	14.22	14.28
1871	NYSE	NVG	Wed, Feb 17, 2010	14.60	14.60	14.25	14.32
1870	NYSE	NVG	Tue, Feb 16, 2010	14.20	14.30	14.16	14.29
1869	NYSE	NVG	Fri, Feb 12, 2010	14.25	14.25	14.11	14.24
1868	NYSE	NVG	Thu, Feb 11, 2010	14.13	14.25	14.13	14.24
1867	NYSE	NVG	Wed, Feb 10, 2010	14.16	14.24	14.09	14.18
1866	NYSE	NVG	Tue, Feb 9, 2010	14.15	14.25	14.15	14.23
1865	NYSE	NVG	Mon, Feb 8, 2010	14.25	14.26	14.10	14.19
1864	NYSE	NVG	Fri, Feb 5, 2010	14.25	14.28	14.20	14.24
1863	NYSE	NVG	Thu, Feb 4, 2010	14.30	14.38	14.21	14.27
1862	NYSE	NVG	Wed, Feb 3, 2010	14.26	14.36	14.26	14.35
1861	NYSE	NVG	Tue, Feb 2, 2010	14.24	14.31	14.22	14.29
1860	NYSE	NVG	Mon, Feb 1, 2010	14.35	14.50	14.20	14.23
1859	NYSE	NVG	Fri, Jan 29, 2010	14.29	14.31	14.23	14.24
1858	NYSE	NVG	Thu, Jan 28, 2010	14.20	14.29	14.19	14.29
1857	NYSE	NVG	Wed, Jan 27, 2010	14.14	14.22	14.14	14.21
1856	NYSE	NVG	Tue, Jan 26, 2010	14.12	14.22	14.11	14.22
1855	NYSE	NVG	Mon, Jan 25, 2010	14.10	14.16	14.09	14.12
1854	NYSE	NVG	Fri, Jan 22, 2010	14.15	14.19	14.09	14.11
1853	NYSE	NVG	Thu, Jan 21, 2010	14.13	14.20	14.13	14.14
1852	NYSE	NVG	Wed, Jan 20, 2010	14.14	14.25	14.14	14.22
1851	NYSE	NVG	Tue, Jan 19, 2010	14.14	14.23	14.13	14.23
1850	NYSE	NVG	Fri, Jan 15, 2010	14.18	14.20	14.13	14.13
1849	NYSE	NVG	Thu, Jan 14, 2010	14.11	14.22	14.11	14.17
1848	NYSE	NVG	Wed, Jan 13, 2010	14.16	14.23	14.08	14.18
1847	NYSE	NVG	Tue, Jan 12, 2010	14.29	14.36	14.15	14.28
1846	NYSE	NVG	Mon, Jan 11, 2010	14.32	14.41	14.27	14.33
1845	NYSE	NVG	Fri, Jan 8, 2010	14.23	14.33	14.19	14.32
1844	NYSE	NVG	Thu, Jan 7, 2010	14.12	14.32	14.12	14.28
1843	NYSE	NVG	Wed, Jan 6, 2010	14.21	14.22	14.10	14.10
1842	NYSE	NVG	Tue, Jan 5, 2010	14.37	14.37	14.11	14.15
1841	NYSE	NVG	Mon, Jan 4, 2010	14.30	14.35	13.93	14.22
1840	NYSE	NVG	Thu, Dec 31, 2009	14.32	14.46	14.22	14.30
1839	NYSE	NVG	Wed, Dec 30, 2009	14.03	14.28	14.03	14.23
1838	NYSE	NVG	Tue, Dec 29, 2009	14.02	14.15	13.99	14.09
1837	NYSE	NVG	Mon, Dec 28, 2009	14.08	14.14	14.05	14.05
1836	NYSE	NVG	Thu, Dec 24, 2009	14.02	14.06	13.92	14.00
1835	NYSE	NVG	Wed, Dec 23, 2009	13.88	14.08	13.88	13.99
1834	NYSE	NVG	Tue, Dec 22, 2009	13.89	14.02	13.87	13.88
1833	NYSE	NVG	Mon, Dec 21, 2009	13.97	14.04	13.87	13.87
1832	NYSE	NVG	Fri, Dec 18, 2009	13.99	14.08	13.89	13.97
1831	NYSE	NVG	Thu, Dec 17, 2009	13.93	14.25	13.93	13.95
1830	NYSE	NVG	Wed, Dec 16, 2009	13.97	14.15	13.97	13.97
1829	NYSE	NVG	Tue, Dec 15, 2009	14.18	14.28	13.98	14.00
1828	NYSE	NVG	Mon, Dec 14, 2009	14.15	14.18	14.09	14.16
1827	NYSE	NVG	Fri, Dec 11, 2009	14.02	14.18	13.96	14.18
1826	NYSE	NVG	Thu, Dec 10, 2009	13.96	14.05	13.96	14.04
1825	NYSE	NVG	Wed, Dec 9, 2009	13.92	14.00	13.90	13.94
1824	NYSE	NVG	Tue, Dec 8, 2009	13.90	13.96	13.90	13.90
1823	NYSE	NVG	Mon, Dec 7, 2009	13.90	13.98	13.85	13.89
1822	NYSE	NVG	Fri, Dec 4, 2009	14.01	14.13	13.89	13.93
1821	NYSE	NVG	Thu, Dec 3, 2009	13.93	14.06	13.93	14.00
1820	NYSE	NVG	Wed, Dec 2, 2009	14.05	14.05	13.96	14.00
1819	NYSE	NVG	Tue, Dec 1, 2009	14.05	14.08	13.95	14.02
1818	NYSE	NVG	Mon, Nov 30, 2009	13.94	14.00	13.85	14.00
1817	NYSE	NVG	Fri, Nov 27, 2009	13.80	13.91	13.77	13.86
1816	NYSE	NVG	Wed, Nov 25, 2009	13.80	13.94	13.80	13.86
1815	NYSE	NVG	Tue, Nov 24, 2009	13.80	13.84	13.71	13.83
1814	NYSE	NVG	Mon, Nov 23, 2009	13.70	13.79	13.65	13.77
1813	NYSE	NVG	Fri, Nov 20, 2009	13.71	13.78	13.69	13.69
1812	NYSE	NVG	Thu, Nov 19, 2009	13.78	13.80	13.64	13.71
1811	NYSE	NVG	Wed, Nov 18, 2009	13.75	13.83	13.75	13.79
1810	NYSE	NVG	Tue, Nov 17, 2009	13.75	13.83	13.74	13.83
1809	NYSE	NVG	Mon, Nov 16, 2009	13.66	13.80	13.63	13.79
1808	NYSE	NVG	Fri, Nov 13, 2009	13.56	13.71	13.56	13.66
1807	NYSE	NVG	Thu, Nov 12, 2009	13.67	13.71	13.57	13.64
1806	NYSE	NVG	Wed, Nov 11, 2009	13.70	13.70	13.65	13.68
1805	NYSE	NVG	Tue, Nov 10, 2009	13.71	13.73	13.64	13.70
1804	NYSE	NVG	Mon, Nov 9, 2009	13.75	13.79	13.75	13.77
1803	NYSE	NVG	Fri, Nov 6, 2009	13.79	13.83	13.76	13.78
1802	NYSE	NVG	Thu, Nov 5, 2009	13.77	13.85	13.75	13.80
1801	NYSE	NVG	Wed, Nov 4, 2009	13.84	13.84	13.73	13.76
1800	NYSE	NVG	Tue, Nov 3, 2009	14.03	14.03	13.72	13.78
1799	NYSE	NVG	Mon, Nov 2, 2009	13.95	13.95	13.77	13.82
1798	NYSE	NVG	Fri, Oct 30, 2009	13.69	13.85	13.69	13.85
1797	NYSE	NVG	Thu, Oct 29, 2009	13.81	13.82	13.69	13.78
1796	NYSE	NVG	Wed, Oct 28, 2009	13.75	13.85	13.74	13.76
1795	NYSE	NVG	Tue, Oct 27, 2009	13.80	13.86	13.78	13.85
1794	NYSE	NVG	Mon, Oct 26, 2009	13.90	13.90	13.81	13.84
1793	NYSE	NVG	Fri, Oct 23, 2009	13.96	14.01	13.83	13.89
1792	NYSE	NVG	Thu, Oct 22, 2009	13.96	14.01	13.95	13.96
1791	NYSE	NVG	Wed, Oct 21, 2009	14.00	14.01	13.86	13.96
1790	NYSE	NVG	Tue, Oct 20, 2009	13.93	13.99	13.81	13.93
1789	NYSE	NVG	Mon, Oct 19, 2009	13.68	13.90	13.65	13.90
1788	NYSE	NVG	Fri, Oct 16, 2009	13.74	13.74	13.50	13.68
1787	NYSE	NVG	Thu, Oct 15, 2009	13.72	13.83	13.50	13.64
1786	NYSE	NVG	Wed, Oct 14, 2009	13.95	14.07	13.73	13.85
1785	NYSE	NVG	Tue, Oct 13, 2009	13.63	13.98	13.63	13.91
1784	NYSE	NVG	Mon, Oct 12, 2009	14.20	14.20	13.79	13.82
1783	NYSE	NVG	Fri, Oct 9, 2009	14.45	14.48	14.09	14.23
1782	NYSE	NVG	Thu, Oct 8, 2009	14.52	14.52	14.41	14.45
1781	NYSE	NVG	Wed, Oct 7, 2009	14.39	14.56	14.39	14.49
1780	NYSE	NVG	Tue, Oct 6, 2009	14.54	14.60	14.38	14.50
1779	NYSE	NVG	Mon, Oct 5, 2009	14.39	14.56	14.39	14.52
1778	NYSE	NVG	Fri, Oct 2, 2009	14.46	14.46	14.33	14.39
1777	NYSE	NVG	Thu, Oct 1, 2009	14.36	14.50	14.34	14.41
1776	NYSE	NVG	Wed, Sep 30, 2009	14.16	14.35	14.13	14.35
1775	NYSE	NVG	Tue, Sep 29, 2009	14.15	14.20	14.05	14.17
1774	NYSE	NVG	Mon, Sep 28, 2009	14.20	14.26	14.10	14.12
1773	NYSE	NVG	Fri, Sep 25, 2009	14.28	14.28	14.01	14.19
1772	NYSE	NVG	Thu, Sep 24, 2009	14.25	14.28	14.17	14.19
1771	NYSE	NVG	Wed, Sep 23, 2009	14.13	14.25	14.09	14.24
1770	NYSE	NVG	Tue, Sep 22, 2009	14.03	14.17	13.92	14.14
1769	NYSE	NVG	Mon, Sep 21, 2009	14.14	14.18	14.09	14.14
1768	NYSE	NVG	Fri, Sep 18, 2009	14.10	14.12	14.06	14.12
1767	NYSE	NVG	Thu, Sep 17, 2009	14.13	14.15	14.07	14.10
1766	NYSE	NVG	Wed, Sep 16, 2009	14.01	14.12	14.01	14.04
1765	NYSE	NVG	Tue, Sep 15, 2009	14.00	14.06	14.00	14.03
1764	NYSE	NVG	Mon, Sep 14, 2009	13.95	14.02	13.94	14.01
1763	NYSE	NVG	Fri, Sep 11, 2009	13.87	14.01	13.87	13.95
1762	NYSE	NVG	Thu, Sep 10, 2009	13.89	14.02	13.89	13.98
1761	NYSE	NVG	Wed, Sep 9, 2009	13.96	14.00	13.88	14.00
1760	NYSE	NVG	Tue, Sep 8, 2009	13.85	13.94	13.82	13.94
1759	NYSE	NVG	Fri, Sep 4, 2009	13.61	13.80	13.61	13.73
1758	NYSE	NVG	Thu, Sep 3, 2009	13.76	13.76	13.41	13.41
1757	NYSE	NVG	Wed, Sep 2, 2009	13.61	13.74	13.61	13.67
1756	NYSE	NVG	Tue, Sep 1, 2009	13.79	13.79	13.61	13.61
1755	NYSE	NVG	Mon, Aug 31, 2009	13.70	13.70	13.60	13.62
1754	NYSE	NVG	Fri, Aug 28, 2009	13.70	13.72	13.64	13.64
1753	NYSE	NVG	Thu, Aug 27, 2009	13.58	13.68	13.58	13.65
1752	NYSE	NVG	Wed, Aug 26, 2009	13.57	13.68	13.55	13.60
1751	NYSE	NVG	Tue, Aug 25, 2009	13.53	13.68	13.53	13.64
1750	NYSE	NVG	Mon, Aug 24, 2009	13.63	13.63	13.53	13.54
1749	NYSE	NVG	Fri, Aug 21, 2009	13.60	13.61	13.52	13.59
1748	NYSE	NVG	Thu, Aug 20, 2009	13.50	13.57	13.44	13.57
1747	NYSE	NVG	Wed, Aug 19, 2009	13.53	13.53	13.45	13.46
1746	NYSE	NVG	Tue, Aug 18, 2009	13.37	13.53	13.37	13.53
1745	NYSE	NVG	Mon, Aug 17, 2009	13.35	13.41	13.24	13.37
1744	NYSE	NVG	Fri, Aug 14, 2009	13.30	13.39	13.30	13.32
1743	NYSE	NVG	Thu, Aug 13, 2009	13.39	13.39	13.25	13.30
1742	NYSE	NVG	Wed, Aug 12, 2009	13.45	13.45	13.32	13.32
1741	NYSE	NVG	Tue, Aug 11, 2009	13.64	13.64	13.40	13.44
1740	NYSE	NVG	Mon, Aug 10, 2009	13.39	13.44	13.37	13.40
1739	NYSE	NVG	Fri, Aug 7, 2009	13.37	13.37	13.32	13.33
1738	NYSE	NVG	Thu, Aug 6, 2009	13.33	13.44	13.28	13.38
1737	NYSE	NVG	Wed, Aug 5, 2009	13.42	13.45	13.28	13.37
1736	NYSE	NVG	Tue, Aug 4, 2009	13.35	13.46	13.34	13.39
1735	NYSE	NVG	Mon, Aug 3, 2009	13.49	13.49	13.32	13.41
1734	NYSE	NVG	Fri, Jul 31, 2009	13.33	13.43	13.22	13.42
1733	NYSE	NVG	Thu, Jul 30, 2009	13.31	13.39	13.22	13.25
1732	NYSE	NVG	Wed, Jul 29, 2009	13.44	13.44	13.23	13.31
1731	NYSE	NVG	Tue, Jul 28, 2009	13.25	13.33	13.20	13.32
1730	NYSE	NVG	Mon, Jul 27, 2009	13.28	13.28	13.15	13.23
1729	NYSE	NVG	Fri, Jul 24, 2009	13.35	13.35	13.21	13.28
1728	NYSE	NVG	Thu, Jul 23, 2009	13.30	13.35	13.16	13.35
1727	NYSE	NVG	Wed, Jul 22, 2009	13.14	13.26	13.10	13.25
1726	NYSE	NVG	Tue, Jul 21, 2009	13.06	13.13	13.00	13.13
1725	NYSE	NVG	Mon, Jul 20, 2009	13.50	13.50	13.03	13.06
1724	NYSE	NVG	Fri, Jul 17, 2009	13.16	13.18	13.10	13.12
1723	NYSE	NVG	Thu, Jul 16, 2009	12.86	13.18	12.86	13.18
1722	NYSE	NVG	Wed, Jul 15, 2009	12.90	13.05	12.90	13.01
1721	NYSE	NVG	Tue, Jul 14, 2009	13.05	13.05	12.94	12.97
1720	NYSE	NVG	Mon, Jul 13, 2009	13.00	13.14	12.92	12.95
1719	NYSE	NVG	Fri, Jul 10, 2009	12.71	13.08	12.71	12.98
1718	NYSE	NVG	Thu, Jul 9, 2009	12.81	13.06	12.33	12.33
1717	NYSE	NVG	Wed, Jul 8, 2009	12.72	12.95	12.72	12.95
1716	NYSE	NVG	Tue, Jul 7, 2009	12.68	12.78	12.65	12.75
1715	NYSE	NVG	Mon, Jul 6, 2009	12.82	12.82	12.68	12.69
1714	NYSE	NVG	Thu, Jul 2, 2009	12.74	12.83	12.70	12.80
1713	NYSE	NVG	Wed, Jul 1, 2009	13.18	13.21	12.60	12.76
1712	NYSE	NVG	Tue, Jun 30, 2009	12.85	12.93	12.79	12.82
1711	NYSE	NVG	Mon, Jun 29, 2009	12.88	13.04	12.63	12.85
1710	NYSE	NVG	Fri, Jun 26, 2009	12.88	12.99	12.82	12.90
1709	NYSE	NVG	Thu, Jun 25, 2009	12.95	12.98	12.83	12.89
1708	NYSE	NVG	Wed, Jun 24, 2009	12.80	12.92	12.80	12.83
1707	NYSE	NVG	Tue, Jun 23, 2009	12.85	12.85	12.79	12.80
1706	NYSE	NVG	Mon, Jun 22, 2009	12.77	12.85	12.77	12.85
1705	NYSE	NVG	Fri, Jun 19, 2009	12.60	12.90	12.60	12.89
1704	NYSE	NVG	Thu, Jun 18, 2009	12.60	12.78	12.60	12.65
1703	NYSE	NVG	Wed, Jun 17, 2009	12.66	12.78	12.61	12.61
1702	NYSE	NVG	Tue, Jun 16, 2009	12.51	12.65	12.51	12.64
1701	NYSE	NVG	Mon, Jun 15, 2009	12.63	12.63	12.50	12.57
1700	NYSE	NVG	Fri, Jun 12, 2009	12.76	12.81	12.55	12.55
1699	NYSE	NVG	Thu, Jun 11, 2009	12.68	12.77	12.63	12.70
1698	NYSE	NVG	Wed, Jun 10, 2009	12.78	12.88	12.76	12.76
1697	NYSE	NVG	Tue, Jun 9, 2009	13.05	13.05	12.79	12.82
1696	NYSE	NVG	Mon, Jun 8, 2009	12.93	12.98	12.83	12.95
1695	NYSE	NVG	Fri, Jun 5, 2009	13.26	13.26	12.99	12.99
1694	NYSE	NVG	Thu, Jun 4, 2009	13.03	13.05	12.90	13.05
1693	NYSE	NVG	Wed, Jun 3, 2009	12.98	13.05	12.98	12.99
1692	NYSE	NVG	Tue, Jun 2, 2009	12.94	13.09	12.90	12.96
1691	NYSE	NVG	Mon, Jun 1, 2009	13.18	13.18	12.98	13.04
1690	NYSE	NVG	Fri, May 29, 2009	13.13	13.14	13.00	13.07
1689	NYSE	NVG	Thu, May 28, 2009	13.08	13.14	13.02	13.08
1688	NYSE	NVG	Wed, May 27, 2009	13.17	13.20	13.07	13.13
1687	NYSE	NVG	Tue, May 26, 2009	13.07	13.14	13.05	13.10
1686	NYSE	NVG	Fri, May 22, 2009	13.13	13.14	13.03	13.05
1685	NYSE	NVG	Thu, May 21, 2009	13.01	13.11	13.01	13.05
1684	NYSE	NVG	Wed, May 20, 2009	13.13	13.13	13.08	13.08
1683	NYSE	NVG	Tue, May 19, 2009	13.03	13.12	13.01	13.12
1682	NYSE	NVG	Mon, May 18, 2009	13.05	13.07	12.97	13.01
1681	NYSE	NVG	Fri, May 15, 2009	12.94	13.07	12.92	13.01
1680	NYSE	NVG	Thu, May 14, 2009	12.86	12.95	12.82	12.93
1679	NYSE	NVG	Wed, May 13, 2009	12.85	12.90	12.70	12.86
1678	NYSE	NVG	Tue, May 12, 2009	12.86	12.97	12.86	12.91
1677	NYSE	NVG	Mon, May 11, 2009	12.88	12.88	12.82	12.86
1676	NYSE	NVG	Fri, May 8, 2009	12.71	12.88	12.71	12.84
1675	NYSE	NVG	Thu, May 7, 2009	12.91	12.92	12.77	12.78
1674	NYSE	NVG	Wed, May 6, 2009	12.71	12.86	12.68	12.77
1673	NYSE	NVG	Tue, May 5, 2009	12.65	12.72	12.62	12.70
1672	NYSE	NVG	Mon, May 4, 2009	12.74	12.79	12.66	12.69
1671	NYSE	NVG	Fri, May 1, 2009	12.80	12.80	12.62	12.62
1670	NYSE	NVG	Thu, Apr 30, 2009	12.82	12.89	12.61	12.69
1669	NYSE	NVG	Wed, Apr 29, 2009	12.67	12.87	12.62	12.67
1668	NYSE	NVG	Tue, Apr 28, 2009	12.77	12.77	12.56	12.67
1667	NYSE	NVG	Mon, Apr 27, 2009	12.68	12.68	12.56	12.66
1666	NYSE	NVG	Fri, Apr 24, 2009	12.60	12.68	12.57	12.61
1665	NYSE	NVG	Thu, Apr 23, 2009	12.37	12.61	12.37	12.61
1664	NYSE	NVG	Wed, Apr 22, 2009	12.44	12.52	12.40	12.46
1663	NYSE	NVG	Tue, Apr 21, 2009	12.43	12.47	12.31	12.40
1662	NYSE	NVG	Mon, Apr 20, 2009	12.26	12.41	12.26	12.32
1661	NYSE	NVG	Fri, Apr 17, 2009	12.45	12.45	12.39	12.40
1660	NYSE	NVG	Thu, Apr 16, 2009	12.52	12.52	12.38	12.45
1659	NYSE	NVG	Wed, Apr 15, 2009	12.44	12.46	12.38	12.46
1658	NYSE	NVG	Tue, Apr 14, 2009	12.55	12.55	12.24	12.40
1657	NYSE	NVG	Mon, Apr 13, 2009	12.31	12.44	12.20	12.31
1656	NYSE	NVG	Thu, Apr 9, 2009	12.46	12.56	12.38	12.41
1655	NYSE	NVG	Wed, Apr 8, 2009	12.32	12.50	12.32	12.49
1654	NYSE	NVG	Tue, Apr 7, 2009	12.32	12.40	12.23	12.40
1653	NYSE	NVG	Mon, Apr 6, 2009	12.34	12.34	12.23	12.27
1652	NYSE	NVG	Fri, Apr 3, 2009	12.31	12.31	12.18	12.29
1651	NYSE	NVG	Thu, Apr 2, 2009	12.45	12.45	12.02	12.28
1650	NYSE	NVG	Wed, Apr 1, 2009	12.55	12.55	12.09	12.25
1649	NYSE	NVG	Tue, Mar 31, 2009	12.29	12.30	12.18	12.26
1648	NYSE	NVG	Mon, Mar 30, 2009	12.52	12.52	12.21	12.22
1647	NYSE	NVG	Fri, Mar 27, 2009	12.31	12.42	12.19	12.40
1646	NYSE	NVG	Thu, Mar 26, 2009	12.32	12.32	12.12	12.32
1645	NYSE	NVG	Wed, Mar 25, 2009	12.29	12.30	12.09	12.18
1644	NYSE	NVG	Tue, Mar 24, 2009	12.06	12.29	12.06	12.22
1643	NYSE	NVG	Mon, Mar 23, 2009	12.27	12.27	12.16	12.27
1642	NYSE	NVG	Fri, Mar 20, 2009	12.00	12.18	12.00	12.10
1641	NYSE	NVG	Thu, Mar 19, 2009	12.14	12.20	11.90	12.04
1640	NYSE	NVG	Wed, Mar 18, 2009	11.67	12.14	11.67	12.02
1639	NYSE	NVG	Tue, Mar 17, 2009	12.12	12.15	11.83	11.85
1638	NYSE	NVG	Mon, Mar 16, 2009	11.99	12.17	11.95	12.09
1637	NYSE	NVG	Fri, Mar 13, 2009	12.20	12.20	11.68	11.97
1636	NYSE	NVG	Thu, Mar 12, 2009	11.78	12.02	11.68	12.02
1635	NYSE	NVG	Wed, Mar 11, 2009	11.85	12.09	11.70	11.78
1634	NYSE	NVG	Tue, Mar 10, 2009	11.35	11.70	11.32	11.70
1633	NYSE	NVG	Mon, Mar 9, 2009	11.61	11.81	11.40	11.40
1632	NYSE	NVG	Fri, Mar 6, 2009	11.75	11.75	11.61	11.72
1631	NYSE	NVG	Thu, Mar 5, 2009	11.78	11.79	11.57	11.58
1630	NYSE	NVG	Wed, Mar 4, 2009	11.91	12.03	11.77	11.77
1629	NYSE	NVG	Tue, Mar 3, 2009	12.00	12.08	11.91	11.93
1628	NYSE	NVG	Mon, Mar 2, 2009	12.24	12.46	12.00	12.00
1627	NYSE	NVG	Fri, Feb 27, 2009	12.29	12.48	12.06	12.21
1626	NYSE	NVG	Thu, Feb 26, 2009	12.75	12.75	12.44	12.46
1625	NYSE	NVG	Wed, Feb 25, 2009	12.32	12.84	12.03	12.48
1624	NYSE	NVG	Tue, Feb 24, 2009	11.75	12.36	11.46	12.12
1623	NYSE	NVG	Mon, Feb 23, 2009	11.76	11.99	11.50	11.50
1622	NYSE	NVG	Fri, Feb 20, 2009	11.95	11.95	11.31	11.61
1621	NYSE	NVG	Thu, Feb 19, 2009	11.90	12.13	11.90	11.91
1620	NYSE	NVG	Wed, Feb 18, 2009	12.14	12.14	11.91	11.99
1619	NYSE	NVG	Tue, Feb 17, 2009	12.60	12.73	12.00	12.05
1618	NYSE	NVG	Fri, Feb 13, 2009	12.51	12.78	12.51	12.63
1617	NYSE	NVG	Thu, Feb 12, 2009	12.65	12.69	12.56	12.69
1616	NYSE	NVG	Wed, Feb 11, 2009	12.60	12.68	12.47	12.67
1615	NYSE	NVG	Tue, Feb 10, 2009	12.68	12.74	12.64	12.73
1614	NYSE	NVG	Mon, Feb 9, 2009	12.96	12.96	12.63	12.77
1613	NYSE	NVG	Fri, Feb 6, 2009	12.79	12.88	12.70	12.88
1612	NYSE	NVG	Thu, Feb 5, 2009	12.78	12.79	12.62	12.68
1611	NYSE	NVG	Wed, Feb 4, 2009	12.63	12.70	12.50	12.64
1610	NYSE	NVG	Tue, Feb 3, 2009	12.60	12.83	12.58	12.70
1609	NYSE	NVG	Mon, Feb 2, 2009	12.62	12.77	12.47	12.69
1608	NYSE	NVG	Fri, Jan 30, 2009	12.84	12.84	12.37	12.52
1607	NYSE	NVG	Thu, Jan 29, 2009	12.57	12.66	12.31	12.66
1606	NYSE	NVG	Wed, Jan 28, 2009	12.65	12.73	12.57	12.67
1605	NYSE	NVG	Tue, Jan 27, 2009	12.38	12.54	12.19	12.48
1604	NYSE	NVG	Mon, Jan 26, 2009	12.24	12.48	12.17	12.48
1603	NYSE	NVG	Fri, Jan 23, 2009	11.98	12.13	11.87	12.13
1602	NYSE	NVG	Thu, Jan 22, 2009	12.17	12.20	12.01	12.09
1601	NYSE	NVG	Wed, Jan 21, 2009	12.24	12.26	12.09	12.17
1600	NYSE	NVG	Tue, Jan 20, 2009	12.95	12.95	12.19	12.19
1599	NYSE	NVG	Fri, Jan 16, 2009	12.26	12.70	12.22	12.70
1598	NYSE	NVG	Thu, Jan 15, 2009	11.97	12.46	11.81	12.24
1597	NYSE	NVG	Wed, Jan 14, 2009	12.41	12.50	11.51	12.00
1596	NYSE	NVG	Tue, Jan 13, 2009	12.62	12.73	12.39	12.50
1595	NYSE	NVG	Mon, Jan 12, 2009	12.70	12.74	12.44	12.62
1594	NYSE	NVG	Fri, Jan 9, 2009	12.49	12.66	12.12	12.55
1593	NYSE	NVG	Thu, Jan 8, 2009	12.30	12.39	12.00	12.32
1592	NYSE	NVG	Wed, Jan 7, 2009	12.01	12.30	11.98	12.12
1591	NYSE	NVG	Tue, Jan 6, 2009	11.87	12.30	11.81	12.24
1590	NYSE	NVG	Mon, Jan 5, 2009	11.74	12.00	11.55	11.87
1589	NYSE	NVG	Fri, Jan 2, 2009	11.78	11.78	11.54	11.60
1588	NYSE	NVG	Wed, Dec 31, 2008	10.89	11.60	10.89	11.46
1587	NYSE	NVG	Tue, Dec 30, 2008	11.00	11.14	10.61	11.14
1586	NYSE	NVG	Mon, Dec 29, 2008	10.75	11.05	10.74	10.85
1585	NYSE	NVG	Fri, Dec 26, 2008	11.13	11.18	10.66	10.75
1584	NYSE	NVG	Wed, Dec 24, 2008	10.99	11.25	10.75	10.83
1583	NYSE	NVG	Tue, Dec 23, 2008	10.90	11.24	10.72	10.99
1582	NYSE	NVG	Mon, Dec 22, 2008	11.48	11.48	10.65	11.00
1581	NYSE	NVG	Fri, Dec 19, 2008	10.47	11.09	10.43	10.96
1580	NYSE	NVG	Thu, Dec 18, 2008	10.42	10.81	10.42	10.63
1579	NYSE	NVG	Wed, Dec 17, 2008	9.99	10.40	9.70	10.40
1578	NYSE	NVG	Tue, Dec 16, 2008	9.61	10.00	9.46	9.90
1577	NYSE	NVG	Mon, Dec 15, 2008	9.42	12.00	9.25	9.64
1576	NYSE	NVG	Fri, Dec 12, 2008	9.46	10.11	9.16	9.45
1575	NYSE	NVG	Thu, Dec 11, 2008	9.83	9.87	9.54	9.63
1574	NYSE	NVG	Wed, Dec 10, 2008	10.00	10.03	9.75	9.95
1573	NYSE	NVG	Tue, Dec 9, 2008	10.22	10.22	9.73	10.00
1572	NYSE	NVG	Mon, Dec 8, 2008	9.84	10.22	9.73	10.17
1571	NYSE	NVG	Fri, Dec 5, 2008	10.34	10.34	9.71	9.83
1570	NYSE	NVG	Thu, Dec 4, 2008	10.01	10.30	10.01	10.13
1569	NYSE	NVG	Wed, Dec 3, 2008	10.27	10.33	10.01	10.21
1568	NYSE	NVG	Tue, Dec 2, 2008	10.63	10.63	10.25	10.27
1567	NYSE	NVG	Mon, Dec 1, 2008	11.00	11.00	10.42	10.50
1566	NYSE	NVG	Fri, Nov 28, 2008	11.02	11.30	10.58	11.00
1565	NYSE	NVG	Wed, Nov 26, 2008	10.30	10.80	10.28	10.74
1564	NYSE	NVG	Tue, Nov 25, 2008	10.56	10.74	10.32	10.40
1563	NYSE	NVG	Mon, Nov 24, 2008	9.95	10.40	9.95	10.35
1562	NYSE	NVG	Fri, Nov 21, 2008	10.76	10.76	9.88	9.97
1561	NYSE	NVG	Thu, Nov 20, 2008	10.39	10.53	10.11	10.18
1560	NYSE	NVG	Wed, Nov 19, 2008	10.59	10.90	10.50	10.51
1559	NYSE	NVG	Tue, Nov 18, 2008	10.75	11.19	10.71	11.00
1558	NYSE	NVG	Mon, Nov 17, 2008	11.17	11.36	11.05	11.06
1557	NYSE	NVG	Fri, Nov 14, 2008	11.30	11.70	11.17	11.17
1556	NYSE	NVG	Thu, Nov 13, 2008	11.10	11.38	11.03	11.38
1555	NYSE	NVG	Wed, Nov 12, 2008	11.11	11.25	11.02	11.20
1554	NYSE	NVG	Tue, Nov 11, 2008	11.47	11.49	11.25	11.28
1553	NYSE	NVG	Mon, Nov 10, 2008	11.70	11.70	11.50	11.50
1552	NYSE	NVG	Fri, Nov 7, 2008	11.55	11.69	11.50	11.62
1551	NYSE	NVG	Thu, Nov 6, 2008	11.61	11.64	11.47	11.54
1550	NYSE	NVG	Wed, Nov 5, 2008	11.64	11.75	11.45	11.50
1549	NYSE	NVG	Tue, Nov 4, 2008	11.50	11.53	11.22	11.51
1548	NYSE	NVG	Mon, Nov 3, 2008	11.13	11.56	11.12	11.50
1547	NYSE	NVG	Fri, Oct 31, 2008	11.34	12.10	11.00	11.42
1546	NYSE	NVG	Thu, Oct 30, 2008	11.00	11.14	11.00	11.05
1545	NYSE	NVG	Wed, Oct 29, 2008	11.43	11.43	11.00	11.01
1544	NYSE	NVG	Tue, Oct 28, 2008	11.44	12.32	11.00	11.15
1543	NYSE	NVG	Mon, Oct 27, 2008	11.50	11.50	11.20	11.24
1542	NYSE	NVG	Fri, Oct 24, 2008	11.37	11.60	11.01	11.45
1541	NYSE	NVG	Thu, Oct 23, 2008	10.80	11.46	10.80	11.40
1540	NYSE	NVG	Wed, Oct 22, 2008	10.56	10.88	10.50	10.80
1539	NYSE	NVG	Tue, Oct 21, 2008	10.37	10.57	10.17	10.56
1538	NYSE	NVG	Mon, Oct 20, 2008	9.83	10.47	9.83	10.40
1537	NYSE	NVG	Fri, Oct 17, 2008	9.68	10.03	9.64	9.89
1536	NYSE	NVG	Thu, Oct 16, 2008	9.31	9.97	9.30	9.77
1535	NYSE	NVG	Wed, Oct 15, 2008	10.13	10.33	9.78	9.90
1534	NYSE	NVG	Tue, Oct 14, 2008	10.20	10.73	10.07	10.63
1533	NYSE	NVG	Mon, Oct 13, 2008	8.60	10.10	8.60	10.03
1532	NYSE	NVG	Fri, Oct 10, 2008	8.55	9.25	7.81	8.35
1531	NYSE	NVG	Thu, Oct 9, 2008	9.30	9.70	9.25	9.36
1530	NYSE	NVG	Wed, Oct 8, 2008	9.75	10.05	8.22	9.74
1529	NYSE	NVG	Tue, Oct 7, 2008	10.42	10.55	10.16	10.18
1528	NYSE	NVG	Mon, Oct 6, 2008	10.80	10.86	10.10	10.30
1527	NYSE	NVG	Fri, Oct 3, 2008	11.20	11.27	11.03	11.14
1526	NYSE	NVG	Thu, Oct 2, 2008	11.26	11.30	11.08	11.17
1525	NYSE	NVG	Wed, Oct 1, 2008	10.91	11.20	10.91	11.08
1524	NYSE	NVG	Tue, Sep 30, 2008	11.15	11.15	10.65	10.75
1523	NYSE	NVG	Mon, Sep 29, 2008	11.20	11.21	6.00	10.55
1522	NYSE	NVG	Fri, Sep 26, 2008	11.76	11.76	11.21	11.30
1521	NYSE	NVG	Thu, Sep 25, 2008	11.29	11.55	11.29	11.54
1520	NYSE	NVG	Wed, Sep 24, 2008	11.35	11.50	11.30	11.42
1519	NYSE	NVG	Tue, Sep 23, 2008	11.48	11.85	11.34	11.34
1518	NYSE	NVG	Mon, Sep 22, 2008	11.92	12.00	11.75	11.77
1517	NYSE	NVG	Fri, Sep 19, 2008	11.12	12.10	11.12	12.10
1516	NYSE	NVG	Thu, Sep 18, 2008	12.00	12.10	11.48	11.57
1515	NYSE	NVG	Wed, Sep 17, 2008	12.51	12.51	12.08	12.08
1514	NYSE	NVG	Tue, Sep 16, 2008	12.29	12.57	12.20	12.54
1513	NYSE	NVG	Mon, Sep 15, 2008	12.56	12.56	12.47	12.55
1512	NYSE	NVG	Fri, Sep 12, 2008	12.65	12.74	12.60	12.60
1511	NYSE	NVG	Thu, Sep 11, 2008	12.77	12.79	12.68	12.68
1510	NYSE	NVG	Wed, Sep 10, 2008	12.76	12.84	12.76	12.84
1509	NYSE	NVG	Tue, Sep 9, 2008	12.81	12.89	12.79	12.79
1508	NYSE	NVG	Mon, Sep 8, 2008	12.72	12.86	12.72	12.85
1507	NYSE	NVG	Fri, Sep 5, 2008	12.64	12.77	12.64	12.77
1506	NYSE	NVG	Thu, Sep 4, 2008	12.61	12.68	12.58	12.65
1505	NYSE	NVG	Wed, Sep 3, 2008	12.70	12.70	12.61	12.61
1504	NYSE	NVG	Tue, Sep 2, 2008	12.72	12.73	12.61	12.61
1503	NYSE	NVG	Fri, Aug 29, 2008	12.64	12.69	12.59	12.66
1502	NYSE	NVG	Thu, Aug 28, 2008	12.66	12.75	12.55	12.60
1501	NYSE	NVG	Wed, Aug 27, 2008	12.91	12.91	12.62	12.68
1500	NYSE	NVG	Tue, Aug 26, 2008	12.60	12.70	12.59	12.63
1499	NYSE	NVG	Mon, Aug 25, 2008	12.61	12.67	12.57	12.62
1498	NYSE	NVG	Fri, Aug 22, 2008	12.62	12.68	12.61	12.61
1497	NYSE	NVG	Thu, Aug 21, 2008	12.70	12.73	12.65	12.65
1496	NYSE	NVG	Wed, Aug 20, 2008	12.80	12.80	12.65	12.73
1495	NYSE	NVG	Tue, Aug 19, 2008	12.73	12.77	12.67	12.68
1494	NYSE	NVG	Mon, Aug 18, 2008	12.66	12.77	12.66	12.70
1493	NYSE	NVG	Fri, Aug 15, 2008	12.64	12.74	12.64	12.67
1492	NYSE	NVG	Thu, Aug 14, 2008	12.70	12.74	12.70	12.71
1491	NYSE	NVG	Wed, Aug 13, 2008	12.69	12.73	12.62	12.66
1490	NYSE	NVG	Tue, Aug 12, 2008	12.63	12.74	12.63	12.70
1489	NYSE	NVG	Mon, Aug 11, 2008	12.61	12.70	12.61	12.69
1488	NYSE	NVG	Fri, Aug 8, 2008	12.58	12.66	12.55	12.63
1487	NYSE	NVG	Thu, Aug 7, 2008	12.55	12.62	12.55	12.57
1486	NYSE	NVG	Wed, Aug 6, 2008	12.60	12.68	12.56	12.57
1485	NYSE	NVG	Tue, Aug 5, 2008	12.74	12.74	12.60	12.60
1484	NYSE	NVG	Mon, Aug 4, 2008	12.71	12.73	12.66	12.66
1483	NYSE	NVG	Fri, Aug 1, 2008	12.83	12.83	12.65	12.67
1482	NYSE	NVG	Thu, Jul 31, 2008	12.69	12.69	12.61	12.64
1481	NYSE	NVG	Wed, Jul 30, 2008	12.71	12.75	12.62	12.63
1480	NYSE	NVG	Tue, Jul 29, 2008	13.05	13.05	12.68	12.69
1479	NYSE	NVG	Mon, Jul 28, 2008	12.54	12.75	12.54	12.72
1478	NYSE	NVG	Fri, Jul 25, 2008	12.67	12.73	12.63	12.68
1477	NYSE	NVG	Thu, Jul 24, 2008	12.70	12.73	12.65	12.67
1476	NYSE	NVG	Wed, Jul 23, 2008	12.60	12.75	12.60	12.68
1475	NYSE	NVG	Tue, Jul 22, 2008	12.70	12.77	12.69	12.75
1474	NYSE	NVG	Mon, Jul 21, 2008	12.75	12.78	12.64	12.73
1473	NYSE	NVG	Fri, Jul 18, 2008	12.85	12.89	12.70	12.78
1472	NYSE	NVG	Thu, Jul 17, 2008	12.70	12.88	12.70	12.88
1471	NYSE	NVG	Wed, Jul 16, 2008	12.30	12.77	12.30	12.77
1470	NYSE	NVG	Tue, Jul 15, 2008	12.53	12.72	12.53	12.64
1469	NYSE	NVG	Mon, Jul 14, 2008	12.84	12.90	12.70	12.72
1468	NYSE	NVG	Fri, Jul 11, 2008	12.92	12.92	12.81	12.84
1467	NYSE	NVG	Thu, Jul 10, 2008	12.91	12.99	12.91	12.94
1466	NYSE	NVG	Wed, Jul 9, 2008	12.83	12.99	12.83	12.91
1465	NYSE	NVG	Tue, Jul 8, 2008	12.88	12.91	12.87	12.89
1464	NYSE	NVG	Mon, Jul 7, 2008	12.92	12.97	12.85	12.85
1463	NYSE	NVG	Thu, Jul 3, 2008	12.90	12.97	12.87	12.91
1462	NYSE	NVG	Wed, Jul 2, 2008	13.02	13.03	12.90	12.98
1461	NYSE	NVG	Tue, Jul 1, 2008	12.83	13.03	12.83	12.92
1460	NYSE	NVG	Mon, Jun 30, 2008	12.92	13.01	12.92	12.94
1459	NYSE	NVG	Fri, Jun 27, 2008	12.59	12.99	12.59	12.94
1458	NYSE	NVG	Thu, Jun 26, 2008	12.93	12.93	12.83	12.92
1457	NYSE	NVG	Wed, Jun 25, 2008	12.87	12.91	12.78	12.84
1456	NYSE	NVG	Tue, Jun 24, 2008	12.74	12.88	12.74	12.88
1455	NYSE	NVG	Mon, Jun 23, 2008	12.93	12.98	12.74	12.74
1454	NYSE	NVG	Fri, Jun 20, 2008	12.97	13.05	12.93	12.94
1453	NYSE	NVG	Thu, Jun 19, 2008	12.97	13.08	12.97	13.03
1452	NYSE	NVG	Wed, Jun 18, 2008	13.01	13.08	13.01	13.04
1451	NYSE	NVG	Tue, Jun 17, 2008	13.15	13.16	13.08	13.12
1450	NYSE	NVG	Mon, Jun 16, 2008	13.04	13.17	13.04	13.11
1449	NYSE	NVG	Fri, Jun 13, 2008	13.09	13.16	13.04	13.11
1448	NYSE	NVG	Thu, Jun 12, 2008	13.21	13.21	12.99	13.16
1447	NYSE	NVG	Wed, Jun 11, 2008	13.37	13.43	13.21	13.23
1446	NYSE	NVG	Tue, Jun 10, 2008	13.51	13.58	13.43	13.43
1445	NYSE	NVG	Mon, Jun 9, 2008	13.55	13.60	13.53	13.54
1444	NYSE	NVG	Fri, Jun 6, 2008	13.60	13.60	13.53	13.54
1443	NYSE	NVG	Thu, Jun 5, 2008	13.59	13.65	13.55	13.59
1442	NYSE	NVG	Wed, Jun 4, 2008	13.63	13.69	13.58	13.60
1441	NYSE	NVG	Tue, Jun 3, 2008	13.68	13.68	13.57	13.66
1440	NYSE	NVG	Mon, Jun 2, 2008	13.67	13.67	13.61	13.62
1439	NYSE	NVG	Fri, May 30, 2008	13.66	13.68	13.54	13.62
1438	NYSE	NVG	Thu, May 29, 2008	13.55	13.62	13.55	13.59
1437	NYSE	NVG	Wed, May 28, 2008	13.47	13.60	13.45	13.59
1436	NYSE	NVG	Tue, May 27, 2008	13.50	13.52	13.44	13.44
1435	NYSE	NVG	Fri, May 23, 2008	13.53	13.57	13.47	13.47
1434	NYSE	NVG	Thu, May 22, 2008	13.56	13.63	13.50	13.50
1433	NYSE	NVG	Wed, May 21, 2008	13.62	13.63	13.56	13.63
1432	NYSE	NVG	Tue, May 20, 2008	13.60	13.61	13.55	13.55
1431	NYSE	NVG	Mon, May 19, 2008	13.52	13.62	13.50	13.62
1430	NYSE	NVG	Fri, May 16, 2008	13.59	13.60	13.51	13.52
1429	NYSE	NVG	Thu, May 15, 2008	13.62	13.62	13.49	13.59
1428	NYSE	NVG	Wed, May 14, 2008	13.36	13.50	13.36	13.46
1427	NYSE	NVG	Tue, May 13, 2008	13.53	13.62	13.46	13.46
1426	NYSE	NVG	Mon, May 12, 2008	13.99	13.99	13.60	13.60
1425	NYSE	NVG	Fri, May 9, 2008	13.53	13.64	13.49	13.64
1424	NYSE	NVG	Thu, May 8, 2008	13.51	13.58	13.51	13.57
1423	NYSE	NVG	Wed, May 7, 2008	13.52	13.58	13.51	13.53
1422	NYSE	NVG	Tue, May 6, 2008	13.50	13.57	13.47	13.54
1421	NYSE	NVG	Mon, May 5, 2008	13.41	13.57	13.41	13.55
1420	NYSE	NVG	Fri, May 2, 2008	13.53	13.56	13.47	13.56
1419	NYSE	NVG	Thu, May 1, 2008	13.56	13.56	13.45	13.48
1418	NYSE	NVG	Wed, Apr 30, 2008	13.40	13.47	13.39	13.47
1417	NYSE	NVG	Tue, Apr 29, 2008	13.39	13.41	13.34	13.36
1416	NYSE	NVG	Mon, Apr 28, 2008	13.53	13.53	13.39	13.39
1415	NYSE	NVG	Fri, Apr 25, 2008	13.50	13.53	13.40	13.40
1414	NYSE	NVG	Thu, Apr 24, 2008	13.48	13.64	13.48	13.49
1413	NYSE	NVG	Wed, Apr 23, 2008	13.61	13.65	13.53	13.63
1412	NYSE	NVG	Tue, Apr 22, 2008	13.52	13.57	13.52	13.53
1411	NYSE	NVG	Mon, Apr 21, 2008	13.65	13.65	13.54	13.55
1410	NYSE	NVG	Fri, Apr 18, 2008	13.68	13.68	13.52	13.62
1409	NYSE	NVG	Thu, Apr 17, 2008	13.48	13.58	13.46	13.49
1408	NYSE	NVG	Wed, Apr 16, 2008	13.46	13.56	13.45	13.55
1407	NYSE	NVG	Tue, Apr 15, 2008	13.46	13.55	13.42	13.46
1406	NYSE	NVG	Mon, Apr 14, 2008	13.52	13.57	13.52	13.53
1405	NYSE	NVG	Fri, Apr 11, 2008	13.55	13.55	13.49	13.55
1404	NYSE	NVG	Thu, Apr 10, 2008	13.38	13.58	13.37	13.57
1403	NYSE	NVG	Wed, Apr 9, 2008	13.44	13.44	13.27	13.41
1402	NYSE	NVG	Tue, Apr 8, 2008	13.39	13.39	13.29	13.35
1401	NYSE	NVG	Mon, Apr 7, 2008	13.27	13.39	13.27	13.33
1400	NYSE	NVG	Fri, Apr 4, 2008	13.35	13.40	13.25	13.27
1399	NYSE	NVG	Thu, Apr 3, 2008	13.32	13.40	13.29	13.30
1398	NYSE	NVG	Wed, Apr 2, 2008	13.47	13.47	13.31	13.31
1397	NYSE	NVG	Tue, Apr 1, 2008	13.39	13.41	13.34	13.40
1396	NYSE	NVG	Mon, Mar 31, 2008	13.40	13.40	13.26	13.30
1395	NYSE	NVG	Fri, Mar 28, 2008	13.23	13.37	13.23	13.30
1394	NYSE	NVG	Thu, Mar 27, 2008	13.33	13.36	13.20	13.24
1393	NYSE	NVG	Wed, Mar 26, 2008	13.07	13.29	13.07	13.25
1392	NYSE	NVG	Tue, Mar 25, 2008	13.10	13.18	13.09	13.17
1391	NYSE	NVG	Mon, Mar 24, 2008	12.99	13.14	12.93	13.14
1390	NYSE	NVG	Thu, Mar 20, 2008	12.81	13.00	12.72	13.00
1389	NYSE	NVG	Wed, Mar 19, 2008	12.96	13.05	12.95	13.04
1388	NYSE	NVG	Tue, Mar 18, 2008	12.81	13.02	12.81	13.00
1387	NYSE	NVG	Mon, Mar 17, 2008	13.39	13.39	12.82	12.82
1386	NYSE	NVG	Fri, Mar 14, 2008	13.05	13.13	13.03	13.04
1385	NYSE	NVG	Thu, Mar 13, 2008	13.05	13.15	13.01	13.14
1384	NYSE	NVG	Wed, Mar 12, 2008	13.24	13.26	13.06	13.10
1383	NYSE	NVG	Tue, Mar 11, 2008	13.24	13.35	13.15	13.23
1382	NYSE	NVG	Mon, Mar 10, 2008	13.38	13.48	13.27	13.35
1381	NYSE	NVG	Fri, Mar 7, 2008	13.37	13.50	13.37	13.43
1380	NYSE	NVG	Thu, Mar 6, 2008	13.48	13.56	13.37	13.37
1379	NYSE	NVG	Wed, Mar 5, 2008	13.53	13.60	13.46	13.48
1378	NYSE	NVG	Tue, Mar 4, 2008	13.37	13.39	12.83	13.37
1377	NYSE	NVG	Mon, Mar 3, 2008	13.15	13.30	13.10	13.29
1376	NYSE	NVG	Fri, Feb 29, 2008	13.16	13.23	13.01	13.10
1375	NYSE	NVG	Thu, Feb 28, 2008	13.49	13.49	13.15	13.23
1374	NYSE	NVG	Wed, Feb 27, 2008	13.50	13.56	13.46	13.49
1373	NYSE	NVG	Tue, Feb 26, 2008	13.46	13.55	13.46	13.52
1372	NYSE	NVG	Mon, Feb 25, 2008	13.45	13.59	13.41	13.50
1371	NYSE	NVG	Fri, Feb 22, 2008	13.31	13.40	13.26	13.38
1370	NYSE	NVG	Thu, Feb 21, 2008	13.44	13.50	13.31	13.32
1369	NYSE	NVG	Wed, Feb 20, 2008	13.61	13.68	13.50	13.51
1368	NYSE	NVG	Tue, Feb 19, 2008	13.42	13.68	13.37	13.62
1367	NYSE	NVG	Fri, Feb 15, 2008	13.33	13.40	13.07	13.34
1366	NYSE	NVG	Thu, Feb 14, 2008	13.86	13.86	13.27	13.32
1365	NYSE	NVG	Wed, Feb 13, 2008	14.20	14.21	13.86	13.86
1364	NYSE	NVG	Tue, Feb 12, 2008	14.07	14.27	14.07	14.25
1363	NYSE	NVG	Mon, Feb 11, 2008	14.10	14.14	14.03	14.10
1362	NYSE	NVG	Fri, Feb 8, 2008	14.02	14.10	14.01	14.08
1361	NYSE	NVG	Thu, Feb 7, 2008	14.01	14.09	14.01	14.02
1360	NYSE	NVG	Wed, Feb 6, 2008	14.08	14.10	14.01	14.01
1359	NYSE	NVG	Tue, Feb 5, 2008	13.92	14.10	13.92	14.10
1358	NYSE	NVG	Mon, Feb 4, 2008	13.91	13.99	13.80	13.95
1357	NYSE	NVG	Fri, Feb 1, 2008	13.94	14.02	13.91	13.92
1356	NYSE	NVG	Thu, Jan 31, 2008	14.00	14.00	13.83	13.91
1355	NYSE	NVG	Wed, Jan 30, 2008	14.01	14.01	13.87	13.96
1354	NYSE	NVG	Tue, Jan 29, 2008	14.04	14.04	13.85	14.00
1353	NYSE	NVG	Mon, Jan 28, 2008	13.96	13.96	13.91	13.93
1352	NYSE	NVG	Fri, Jan 25, 2008	14.14	14.14	13.93	13.95
1351	NYSE	NVG	Thu, Jan 24, 2008	13.96	14.10	13.96	14.05
1350	NYSE	NVG	Wed, Jan 23, 2008	13.95	13.99	13.91	13.98
1349	NYSE	NVG	Tue, Jan 22, 2008	13.20	13.83	13.20	13.79
1348	NYSE	NVG	Fri, Jan 18, 2008	13.94	13.95	13.70	13.74
1347	NYSE	NVG	Thu, Jan 17, 2008	14.14	14.14	13.91	13.93
1346	NYSE	NVG	Wed, Jan 16, 2008	13.92	14.11	13.92	14.02
1345	NYSE	NVG	Tue, Jan 15, 2008	14.08	14.13	13.99	14.13
1344	NYSE	NVG	Mon, Jan 14, 2008	13.85	14.02	13.85	14.02
1343	NYSE	NVG	Fri, Jan 11, 2008	13.81	13.98	13.81	13.92
1342	NYSE	NVG	Thu, Jan 10, 2008	13.89	14.00	13.89	13.89
1341	NYSE	NVG	Wed, Jan 9, 2008	13.92	13.95	13.85	13.95
1340	NYSE	NVG	Tue, Jan 8, 2008	13.90	13.95	13.80	13.87
1339	NYSE	NVG	Mon, Jan 7, 2008	13.95	13.95	13.80	13.85
1338	NYSE	NVG	Fri, Jan 4, 2008	13.76	13.94	13.76	13.89
1337	NYSE	NVG	Thu, Jan 3, 2008	13.62	13.87	13.62	13.76
1336	NYSE	NVG	Wed, Jan 2, 2008	13.41	13.60	13.41	13.60
1335	NYSE	NVG	Mon, Dec 31, 2007	13.73	13.73	13.32	13.50
1334	NYSE	NVG	Fri, Dec 28, 2007	13.30	13.35	13.25	13.35
1333	NYSE	NVG	Thu, Dec 27, 2007	13.14	13.26	13.14	13.21
1332	NYSE	NVG	Wed, Dec 26, 2007	13.12	13.22	13.11	13.17
1331	NYSE	NVG	Mon, Dec 24, 2007	13.00	13.12	13.00	13.12
1330	NYSE	NVG	Fri, Dec 21, 2007	13.03	13.08	12.95	13.00
1329	NYSE	NVG	Thu, Dec 20, 2007	13.08	13.19	13.05	13.05
1328	NYSE	NVG	Wed, Dec 19, 2007	13.15	13.20	13.11	13.14
1327	NYSE	NVG	Tue, Dec 18, 2007	12.98	13.22	12.98	13.21
1326	NYSE	NVG	Mon, Dec 17, 2007	12.93	13.23	12.93	13.14
1325	NYSE	NVG	Fri, Dec 14, 2007	12.94	13.29	12.94	13.17
1324	NYSE	NVG	Thu, Dec 13, 2007	13.13	13.25	13.13	13.17
1323	NYSE	NVG	Wed, Dec 12, 2007	13.33	13.41	13.20	13.30
1322	NYSE	NVG	Tue, Dec 11, 2007	13.39	13.42	13.33	13.40
1321	NYSE	NVG	Mon, Dec 10, 2007	13.38	13.43	13.31	13.36
1320	NYSE	NVG	Fri, Dec 7, 2007	13.45	13.46	13.36	13.44
1319	NYSE	NVG	Thu, Dec 6, 2007	13.47	13.50	13.40	13.44
1318	NYSE	NVG	Wed, Dec 5, 2007	13.43	13.54	13.40	13.47
1317	NYSE	NVG	Tue, Dec 4, 2007	13.28	13.48	13.28	13.43
1316	NYSE	NVG	Mon, Dec 3, 2007	13.45	13.45	13.34	13.44
1315	NYSE	NVG	Fri, Nov 30, 2007	13.43	13.45	13.34	13.39
1314	NYSE	NVG	Thu, Nov 29, 2007	13.33	13.43	13.30	13.38
1313	NYSE	NVG	Wed, Nov 28, 2007	13.36	13.45	13.29	13.40
1312	NYSE	NVG	Tue, Nov 27, 2007	13.28	13.39	13.25	13.26
1311	NYSE	NVG	Mon, Nov 26, 2007	13.35	13.41	13.22	13.31
1310	NYSE	NVG	Fri, Nov 23, 2007	13.28	13.35	13.20	13.33
1309	NYSE	NVG	Wed, Nov 21, 2007	13.04	13.33	13.04	13.31
1308	NYSE	NVG	Tue, Nov 20, 2007	13.01	13.18	13.01	13.15
1307	NYSE	NVG	Mon, Nov 19, 2007	13.00	13.08	12.95	13.08
1306	NYSE	NVG	Fri, Nov 16, 2007	12.85	13.05	12.80	13.04
1305	NYSE	NVG	Thu, Nov 15, 2007	12.99	13.01	12.83	12.90
1304	NYSE	NVG	Wed, Nov 14, 2007	13.15	13.23	12.99	13.00
1303	NYSE	NVG	Tue, Nov 13, 2007	13.22	13.32	13.15	13.15
1302	NYSE	NVG	Mon, Nov 12, 2007	13.14	13.28	13.05	13.28
1301	NYSE	NVG	Fri, Nov 9, 2007	13.20	13.25	13.13	13.13
1300	NYSE	NVG	Thu, Nov 8, 2007	13.32	13.35	13.20	13.29
1299	NYSE	NVG	Wed, Nov 7, 2007	13.28	13.44	13.27	13.32
1298	NYSE	NVG	Tue, Nov 6, 2007	13.38	13.44	13.34	13.35
1297	NYSE	NVG	Mon, Nov 5, 2007	13.43	13.43	13.03	13.39
1296	NYSE	NVG	Fri, Nov 2, 2007	13.64	13.69	13.43	13.43
1295	NYSE	NVG	Thu, Nov 1, 2007	13.79	13.80	13.70	13.70
1294	NYSE	NVG	Wed, Oct 31, 2007	13.93	13.95	13.71	13.71
1293	NYSE	NVG	Tue, Oct 30, 2007	13.85	14.08	13.80	13.90
1292	NYSE	NVG	Mon, Oct 29, 2007	13.87	14.01	13.86	13.95
1291	NYSE	NVG	Fri, Oct 26, 2007	13.90	14.00	13.79	14.00
1290	NYSE	NVG	Thu, Oct 25, 2007	13.88	14.05	13.87	14.00
1289	NYSE	NVG	Wed, Oct 24, 2007	13.85	14.02	13.85	14.02
1288	NYSE	NVG	Tue, Oct 23, 2007	13.88	13.92	13.79	13.87
1287	NYSE	NVG	Mon, Oct 22, 2007	13.85	13.96	13.76	13.92
1286	NYSE	NVG	Fri, Oct 19, 2007	13.90	13.95	13.81	13.95
1285	NYSE	NVG	Thu, Oct 18, 2007	13.85	14.01	13.81	14.00
1284	NYSE	NVG	Wed, Oct 17, 2007	13.85	13.95	13.85	13.87
1283	NYSE	NVG	Tue, Oct 16, 2007	13.80	13.89	13.80	13.85
1282	NYSE	NVG	Mon, Oct 15, 2007	13.69	13.95	13.62	13.81
1281	NYSE	NVG	Fri, Oct 12, 2007	13.75	13.83	13.75	13.77
1280	NYSE	NVG	Thu, Oct 11, 2007	13.71	13.80	13.71	13.75
1279	NYSE	NVG	Wed, Oct 10, 2007	13.65	13.79	13.65	13.79
1278	NYSE	NVG	Tue, Oct 9, 2007	13.72	13.77	13.69	13.70
1277	NYSE	NVG	Mon, Oct 8, 2007	13.72	13.79	13.70	13.70
1276	NYSE	NVG	Fri, Oct 5, 2007	13.80	13.83	13.72	13.72
1275	NYSE	NVG	Thu, Oct 4, 2007	13.75	13.86	13.75	13.80
1274	NYSE	NVG	Wed, Oct 3, 2007	13.84	13.95	13.75	13.78
1273	NYSE	NVG	Tue, Oct 2, 2007	14.03	14.06	13.86	13.86
1272	NYSE	NVG	Mon, Oct 1, 2007	14.04	14.11	13.95	13.95
1271	NYSE	NVG	Fri, Sep 28, 2007	13.99	14.03	13.91	14.00
1270	NYSE	NVG	Thu, Sep 27, 2007	13.84	13.97	13.84	13.87
1269	NYSE	NVG	Wed, Sep 26, 2007	13.79	13.95	13.79	13.84
1268	NYSE	NVG	Tue, Sep 25, 2007	13.84	14.00	13.79	13.79
1267	NYSE	NVG	Mon, Sep 24, 2007	14.01	14.01	13.82	13.90
1266	NYSE	NVG	Fri, Sep 21, 2007	14.17	14.17	13.90	14.01
1265	NYSE	NVG	Thu, Sep 20, 2007	14.16	14.20	14.05	14.10
1264	NYSE	NVG	Wed, Sep 19, 2007	14.16	14.25	14.08	14.25
1263	NYSE	NVG	Tue, Sep 18, 2007	14.06	14.24	14.06	14.17
1262	NYSE	NVG	Mon, Sep 17, 2007	14.15	14.19	14.10	14.10
1261	NYSE	NVG	Fri, Sep 14, 2007	14.10	14.27	14.10	14.12
1260	NYSE	NVG	Thu, Sep 13, 2007	14.29	14.35	14.15	14.15
1259	NYSE	NVG	Wed, Sep 12, 2007	14.50	14.50	14.30	14.36
1258	NYSE	NVG	Tue, Sep 11, 2007	14.39	14.50	14.37	14.47
1257	NYSE	NVG	Mon, Sep 10, 2007	14.28	14.45	14.28	14.44
1256	NYSE	NVG	Fri, Sep 7, 2007	14.15	14.38	14.09	14.26
1255	NYSE	NVG	Thu, Sep 6, 2007	14.10	14.11	13.97	14.10
1254	NYSE	NVG	Wed, Sep 5, 2007	13.92	14.02	13.91	14.01
1253	NYSE	NVG	Tue, Sep 4, 2007	14.01	14.02	13.92	14.01
1252	NYSE	NVG	Fri, Aug 31, 2007	14.05	14.05	13.86	13.95
1251	NYSE	NVG	Thu, Aug 30, 2007	13.88	13.99	13.88	13.96
1250	NYSE	NVG	Wed, Aug 29, 2007	13.85	13.92	13.85	13.91
1249	NYSE	NVG	Tue, Aug 28, 2007	13.80	13.85	13.71	13.80
1248	NYSE	NVG	Mon, Aug 27, 2007	13.87	13.92	13.83	13.83
1247	NYSE	NVG	Fri, Aug 24, 2007	14.00	14.07	13.90	13.90
1246	NYSE	NVG	Thu, Aug 23, 2007	14.04	14.04	13.92	13.98
1245	NYSE	NVG	Wed, Aug 22, 2007	13.83	14.30	13.75	14.05
1244	NYSE	NVG	Tue, Aug 21, 2007	13.59	13.90	13.55	13.90
1243	NYSE	NVG	Mon, Aug 20, 2007	13.63	13.64	13.56	13.61
1242	NYSE	NVG	Fri, Aug 17, 2007	13.29	13.69	13.29	13.63
1241	NYSE	NVG	Thu, Aug 16, 2007	13.47	13.47	13.12	13.23
1240	NYSE	NVG	Wed, Aug 15, 2007	13.51	13.55	13.43	13.52
1239	NYSE	NVG	Tue, Aug 14, 2007	13.60	13.63	13.54	13.54
1238	NYSE	NVG	Mon, Aug 13, 2007	13.65	13.71	13.60	13.60
1237	NYSE	NVG	Fri, Aug 10, 2007	13.75	13.81	13.66	13.72
1236	NYSE	NVG	Thu, Aug 9, 2007	13.81	13.89	13.77	13.77
1235	NYSE	NVG	Wed, Aug 8, 2007	13.83	13.88	13.75	13.88
1234	NYSE	NVG	Tue, Aug 7, 2007	13.83	13.92	13.81	13.81
1233	NYSE	NVG	Mon, Aug 6, 2007	13.97	13.97	13.87	13.87
1232	NYSE	NVG	Fri, Aug 3, 2007	13.92	13.97	13.92	13.97
1231	NYSE	NVG	Thu, Aug 2, 2007	14.02	14.02	13.91	13.97
1230	NYSE	NVG	Wed, Aug 1, 2007	13.85	13.92	13.83	13.90
1229	NYSE	NVG	Tue, Jul 31, 2007	13.92	13.98	13.85	13.93
1228	NYSE	NVG	Mon, Jul 30, 2007	13.75	13.87	13.75	13.87
1227	NYSE	NVG	Fri, Jul 27, 2007	13.75	13.80	13.70	13.79
1226	NYSE	NVG	Thu, Jul 26, 2007	13.75	13.79	13.70	13.76
1225	NYSE	NVG	Wed, Jul 25, 2007	13.68	13.77	13.68	13.77
1224	NYSE	NVG	Tue, Jul 24, 2007	13.71	13.75	13.70	13.72
1223	NYSE	NVG	Mon, Jul 23, 2007	13.71	13.78	13.67	13.69
1222	NYSE	NVG	Fri, Jul 20, 2007	13.67	13.76	13.65	13.72
1221	NYSE	NVG	Thu, Jul 19, 2007	13.72	13.77	13.68	13.68
1220	NYSE	NVG	Wed, Jul 18, 2007	13.78	13.80	13.70	13.70
1219	NYSE	NVG	Tue, Jul 17, 2007	13.92	13.92	13.78	13.79
1218	NYSE	NVG	Mon, Jul 16, 2007	13.91	14.05	13.84	13.92
1217	NYSE	NVG	Fri, Jul 13, 2007	13.96	14.00	13.82	13.85
1216	NYSE	NVG	Thu, Jul 12, 2007	14.03	14.05	13.95	13.96
1215	NYSE	NVG	Wed, Jul 11, 2007	14.06	14.08	13.99	14.00
1214	NYSE	NVG	Tue, Jul 10, 2007	14.05	14.14	14.05	14.08
1213	NYSE	NVG	Mon, Jul 9, 2007	14.04	14.12	14.04	14.05
1212	NYSE	NVG	Fri, Jul 6, 2007	14.06	14.09	14.04	14.04
1211	NYSE	NVG	Thu, Jul 5, 2007	14.13	14.16	14.06	14.09
1210	NYSE	NVG	Tue, Jul 3, 2007	14.19	14.19	14.14	14.14
1209	NYSE	NVG	Mon, Jul 2, 2007	14.14	14.18	14.12	14.18
1208	NYSE	NVG	Fri, Jun 29, 2007	14.04	14.12	13.98	14.12
1207	NYSE	NVG	Thu, Jun 28, 2007	13.94	14.05	13.94	13.98
1206	NYSE	NVG	Wed, Jun 27, 2007	13.98	13.99	13.94	13.94
1205	NYSE	NVG	Tue, Jun 26, 2007	13.95	14.02	13.94	13.94
1204	NYSE	NVG	Mon, Jun 25, 2007	14.01	14.04	13.92	13.96
1203	NYSE	NVG	Fri, Jun 22, 2007	13.95	14.02	13.93	14.01
1202	NYSE	NVG	Thu, Jun 21, 2007	14.15	14.15	13.95	14.03
1201	NYSE	NVG	Wed, Jun 20, 2007	14.15	14.18	14.02	14.02
1200	NYSE	NVG	Tue, Jun 19, 2007	14.06	14.17	14.06	14.15
1199	NYSE	NVG	Mon, Jun 18, 2007	14.06	14.13	14.05	14.07
1198	NYSE	NVG	Fri, Jun 15, 2007	14.08	14.15	14.05	14.06
1197	NYSE	NVG	Thu, Jun 14, 2007	14.04	14.14	14.00	14.12
1196	NYSE	NVG	Wed, Jun 13, 2007	13.91	14.03	13.88	14.02
1195	NYSE	NVG	Tue, Jun 12, 2007	14.02	14.05	13.91	14.00
1194	NYSE	NVG	Mon, Jun 11, 2007	14.45	14.45	13.28	14.01
1193	NYSE	NVG	Fri, Jun 8, 2007	14.56	14.56	14.41	14.45
1192	NYSE	NVG	Thu, Jun 7, 2007	14.86	14.86	14.46	14.52
1191	NYSE	NVG	Wed, Jun 6, 2007	15.15	15.15	14.89	14.94
1190	NYSE	NVG	Tue, Jun 5, 2007	15.10	15.10	15.00	15.00
1189	NYSE	NVG	Mon, Jun 4, 2007	15.02	15.11	15.02	15.04
1188	NYSE	NVG	Fri, Jun 1, 2007	15.16	15.25	15.02	15.04
1187	NYSE	NVG	Thu, May 31, 2007	15.12	15.14	15.07	15.10
1186	NYSE	NVG	Wed, May 30, 2007	15.01	15.10	15.01	15.09
1185	NYSE	NVG	Tue, May 29, 2007	15.12	15.15	15.05	15.10
1184	NYSE	NVG	Fri, May 25, 2007	15.12	15.14	15.06	15.08
1183	NYSE	NVG	Thu, May 24, 2007	15.05	15.15	15.05	15.06
1182	NYSE	NVG	Wed, May 23, 2007	15.15	15.19	15.05	15.06
1181	NYSE	NVG	Tue, May 22, 2007	15.18	15.22	15.18	15.18
1180	NYSE	NVG	Mon, May 21, 2007	15.28	15.30	15.16	15.18
1179	NYSE	NVG	Fri, May 18, 2007	15.31	15.41	15.30	15.30
1178	NYSE	NVG	Thu, May 17, 2007	15.30	15.41	15.29	15.41
1177	NYSE	NVG	Wed, May 16, 2007	15.30	15.37	15.30	15.35
1176	NYSE	NVG	Tue, May 15, 2007	15.36	15.42	15.32	15.32
1175	NYSE	NVG	Mon, May 14, 2007	15.39	15.40	15.35	15.36
1174	NYSE	NVG	Fri, May 11, 2007	15.37	15.45	15.28	15.45
1173	NYSE	NVG	Thu, May 10, 2007	15.32	15.38	15.29	15.38
1172	NYSE	NVG	Wed, May 9, 2007	15.26	15.43	15.25	15.31
1171	NYSE	NVG	Tue, May 8, 2007	15.32	15.44	15.25	15.33
1170	NYSE	NVG	Mon, May 7, 2007	15.36	15.46	15.32	15.32
1169	NYSE	NVG	Fri, May 4, 2007	15.40	15.52	15.35	15.42
1168	NYSE	NVG	Thu, May 3, 2007	15.40	15.42	15.36	15.42
1167	NYSE	NVG	Wed, May 2, 2007	15.40	15.68	15.35	15.45
1166	NYSE	NVG	Tue, May 1, 2007	15.39	15.44	15.31	15.37
1165	NYSE	NVG	Mon, Apr 30, 2007	15.29	15.40	15.25	15.26
1164	NYSE	NVG	Fri, Apr 27, 2007	15.20	15.30	15.19	15.30
1163	NYSE	NVG	Thu, Apr 26, 2007	15.26	15.29	15.18	15.28
1162	NYSE	NVG	Wed, Apr 25, 2007	15.25	15.30	15.23	15.30
1161	NYSE	NVG	Tue, Apr 24, 2007	15.25	15.29	15.18	15.25
1160	NYSE	NVG	Mon, Apr 23, 2007	15.29	15.29	15.21	15.25
1159	NYSE	NVG	Fri, Apr 20, 2007	15.22	15.23	15.16	15.23
1158	NYSE	NVG	Thu, Apr 19, 2007	15.03	15.20	15.03	15.19
1157	NYSE	NVG	Wed, Apr 18, 2007	15.09	15.12	14.98	15.12
1156	NYSE	NVG	Tue, Apr 17, 2007	15.06	15.10	15.02	15.09
1155	NYSE	NVG	Mon, Apr 16, 2007	15.05	15.13	15.05	15.10
1154	NYSE	NVG	Fri, Apr 13, 2007	15.22	15.22	15.06	15.07
1153	NYSE	NVG	Thu, Apr 12, 2007	15.14	15.23	15.11	15.22
1152	NYSE	NVG	Wed, Apr 11, 2007	15.16	15.28	15.13	15.17
1151	NYSE	NVG	Tue, Apr 10, 2007	15.32	15.33	15.25	15.30
1150	NYSE	NVG	Mon, Apr 9, 2007	15.38	15.38	15.27	15.27
1149	NYSE	NVG	Thu, Apr 5, 2007	15.20	15.35	15.18	15.35
1148	NYSE	NVG	Wed, Apr 4, 2007	15.30	15.31	15.22	15.22
1147	NYSE	NVG	Tue, Apr 3, 2007	15.31	15.35	15.23	15.31
1146	NYSE	NVG	Mon, Apr 2, 2007	15.39	15.39	15.23	15.35
1145	NYSE	NVG	Fri, Mar 30, 2007	15.31	15.35	15.25	15.35
1144	NYSE	NVG	Thu, Mar 29, 2007	15.36	15.46	15.28	15.30
1143	NYSE	NVG	Wed, Mar 28, 2007	15.38	15.50	15.32	15.37
1142	NYSE	NVG	Tue, Mar 27, 2007	15.32	15.37	15.31	15.37
1141	NYSE	NVG	Mon, Mar 26, 2007	15.38	15.45	15.35	15.37
1140	NYSE	NVG	Fri, Mar 23, 2007	15.43	15.70	15.30	15.43
1139	NYSE	NVG	Thu, Mar 22, 2007	15.41	15.42	15.31	15.35
1138	NYSE	NVG	Wed, Mar 21, 2007	15.39	15.42	15.32	15.42
1137	NYSE	NVG	Tue, Mar 20, 2007	15.28	15.38	15.28	15.36
1136	NYSE	NVG	Mon, Mar 19, 2007	15.29	15.35	15.22	15.30
1135	NYSE	NVG	Fri, Mar 16, 2007	15.30	15.31	15.22	15.28
1134	NYSE	NVG	Thu, Mar 15, 2007	15.20	15.35	15.20	15.35
1133	NYSE	NVG	Wed, Mar 14, 2007	15.21	15.35	15.16	15.30
1132	NYSE	NVG	Tue, Mar 13, 2007	15.23	15.28	15.18	15.25
1131	NYSE	NVG	Mon, Mar 12, 2007	15.30	15.31	15.20	15.24
1130	NYSE	NVG	Fri, Mar 9, 2007	15.24	15.33	15.16	15.30
1129	NYSE	NVG	Thu, Mar 8, 2007	15.18	15.30	15.17	15.30
1128	NYSE	NVG	Wed, Mar 7, 2007	15.16	15.22	15.15	15.18
1127	NYSE	NVG	Tue, Mar 6, 2007	15.34	15.35	15.17	15.17
1126	NYSE	NVG	Mon, Mar 5, 2007	15.10	15.18	15.03	15.16
1125	NYSE	NVG	Fri, Mar 2, 2007	15.11	15.14	15.04	15.06
1124	NYSE	NVG	Thu, Mar 1, 2007	15.16	15.16	15.00	15.05
1123	NYSE	NVG	Wed, Feb 28, 2007	15.01	15.16	14.96	15.15
1122	NYSE	NVG	Tue, Feb 27, 2007	15.01	15.11	14.95	15.10
1121	NYSE	NVG	Mon, Feb 26, 2007	15.03	15.05	14.96	15.05
1120	NYSE	NVG	Fri, Feb 23, 2007	14.90	15.01	14.90	14.97
1119	NYSE	NVG	Thu, Feb 22, 2007	15.01	15.01	14.90	14.91
1118	NYSE	NVG	Wed, Feb 21, 2007	14.98	15.03	14.96	14.98
1117	NYSE	NVG	Tue, Feb 20, 2007	14.99	15.05	14.95	14.97
1116	NYSE	NVG	Fri, Feb 16, 2007	15.02	15.04	14.97	15.01
1115	NYSE	NVG	Thu, Feb 15, 2007	14.96	15.05	14.96	15.02
1114	NYSE	NVG	Wed, Feb 14, 2007	14.99	15.06	14.99	15.05
1113	NYSE	NVG	Tue, Feb 13, 2007	15.03	15.03	14.98	14.99
1112	NYSE	NVG	Mon, Feb 12, 2007	15.08	15.08	15.01	15.06
1111	NYSE	NVG	Fri, Feb 9, 2007	15.11	15.18	14.98	15.13
1110	NYSE	NVG	Thu, Feb 8, 2007	15.17	15.24	15.10	15.17
1109	NYSE	NVG	Wed, Feb 7, 2007	15.20	15.40	15.13	15.13
1108	NYSE	NVG	Tue, Feb 6, 2007	15.08	15.20	15.08	15.14
1107	NYSE	NVG	Mon, Feb 5, 2007	15.19	15.19	15.08	15.08
1106	NYSE	NVG	Fri, Feb 2, 2007	15.24	15.24	15.14	15.15
1105	NYSE	NVG	Thu, Feb 1, 2007	15.24	15.24	15.15	15.19
1104	NYSE	NVG	Wed, Jan 31, 2007	15.01	15.15	15.00	15.12
1103	NYSE	NVG	Tue, Jan 30, 2007	15.10	15.10	14.91	15.00
1102	NYSE	NVG	Mon, Jan 29, 2007	15.18	15.20	15.03	15.08
1101	NYSE	NVG	Fri, Jan 26, 2007	15.02	15.18	14.97	15.10
1100	NYSE	NVG	Thu, Jan 25, 2007	15.14	15.14	14.91	15.01
1099	NYSE	NVG	Wed, Jan 24, 2007	15.21	15.23	14.99	15.14
1098	NYSE	NVG	Tue, Jan 23, 2007	15.11	15.17	15.07	15.16
1097	NYSE	NVG	Mon, Jan 22, 2007	15.15	15.23	15.10	15.21
1096	NYSE	NVG	Fri, Jan 19, 2007	15.08	15.29	15.08	15.20
1095	NYSE	NVG	Thu, Jan 18, 2007	15.10	15.36	15.09	15.26
1094	NYSE	NVG	Wed, Jan 17, 2007	15.07	15.27	15.05	15.18
1093	NYSE	NVG	Tue, Jan 16, 2007	15.00	15.25	14.91	15.10
1092	NYSE	NVG	Fri, Jan 12, 2007	14.95	15.00	14.90	14.99
1091	NYSE	NVG	Thu, Jan 11, 2007	15.00	15.20	14.95	14.96
1090	NYSE	NVG	Wed, Jan 10, 2007	15.10	15.12	14.91	14.97
1089	NYSE	NVG	Tue, Jan 9, 2007	15.01	15.15	14.98	15.06
1088	NYSE	NVG	Mon, Jan 8, 2007	15.11	15.12	14.98	15.06
1087	NYSE	NVG	Fri, Jan 5, 2007	15.14	15.23	15.01	15.06
1086	NYSE	NVG	Thu, Jan 4, 2007	15.12	15.17	15.05	15.14
1085	NYSE	NVG	Wed, Jan 3, 2007	15.05	15.24	15.05	15.24
1084	NYSE	NVG	Fri, Dec 29, 2006	14.99	15.12	14.94	15.12
1083	NYSE	NVG	Thu, Dec 28, 2006	15.05	15.08	14.91	14.96
1082	NYSE	NVG	Wed, Dec 27, 2006	15.01	15.10	15.01	15.05
1081	NYSE	NVG	Tue, Dec 26, 2006	14.96	15.10	14.96	15.09
1080	NYSE	NVG	Fri, Dec 22, 2006	15.12	15.14	14.90	15.01
1079	NYSE	NVG	Thu, Dec 21, 2006	15.12	15.17	15.11	15.17
1078	NYSE	NVG	Wed, Dec 20, 2006	15.13	15.20	15.10	15.14
1077	NYSE	NVG	Tue, Dec 19, 2006	15.40	15.40	15.05	15.10
1076	NYSE	NVG	Mon, Dec 18, 2006	15.29	15.39	15.15	15.16
1075	NYSE	NVG	Fri, Dec 15, 2006	15.30	15.45	15.15	15.29
1074	NYSE	NVG	Thu, Dec 14, 2006	15.36	15.40	15.35	15.35
1073	NYSE	NVG	Wed, Dec 13, 2006	15.42	15.44	15.26	15.38
1072	NYSE	NVG	Tue, Dec 12, 2006	15.36	15.52	15.32	15.45
1071	NYSE	NVG	Mon, Dec 11, 2006	15.36	15.45	15.30	15.40
1070	NYSE	NVG	Fri, Dec 8, 2006	15.45	15.45	15.34	15.41
1069	NYSE	NVG	Thu, Dec 7, 2006	15.32	15.39	15.20	15.37
1068	NYSE	NVG	Wed, Dec 6, 2006	15.26	15.37	15.17	15.37
1067	NYSE	NVG	Tue, Dec 5, 2006	15.15	15.26	15.10	15.26
1066	NYSE	NVG	Mon, Dec 4, 2006	15.07	15.18	15.07	15.15
1065	NYSE	NVG	Fri, Dec 1, 2006	15.14	15.15	15.04	15.05
1064	NYSE	NVG	Thu, Nov 30, 2006	15.04	15.11	15.00	15.08
1063	NYSE	NVG	Wed, Nov 29, 2006	14.93	14.99	14.93	14.99
1062	NYSE	NVG	Tue, Nov 28, 2006	14.98	15.01	14.90	14.92
1061	NYSE	NVG	Mon, Nov 27, 2006	14.80	14.97	14.80	14.96
1060	NYSE	NVG	Fri, Nov 24, 2006	14.95	14.95	14.79	14.80
1059	NYSE	NVG	Wed, Nov 22, 2006	14.98	15.00	14.93	14.93
1058	NYSE	NVG	Tue, Nov 21, 2006	15.00	15.00	14.92	14.94
1057	NYSE	NVG	Mon, Nov 20, 2006	15.14	15.15	15.03	15.06
1056	NYSE	NVG	Fri, Nov 17, 2006	15.05	15.25	14.95	15.14
1055	NYSE	NVG	Thu, Nov 16, 2006	15.02	15.08	15.00	15.05
1054	NYSE	NVG	Wed, Nov 15, 2006	15.00	15.06	14.97	15.06
1053	NYSE	NVG	Tue, Nov 14, 2006	15.01	15.03	14.97	15.00
1052	NYSE	NVG	Mon, Nov 13, 2006	14.95	15.18	14.90	14.94
1051	NYSE	NVG	Fri, Nov 10, 2006	14.90	15.09	14.90	15.08
1050	NYSE	NVG	Thu, Nov 9, 2006	14.87	14.97	14.87	14.87
1049	NYSE	NVG	Wed, Nov 8, 2006	14.90	14.96	14.84	14.90
1048	NYSE	NVG	Tue, Nov 7, 2006	14.92	14.99	14.85	14.95
1047	NYSE	NVG	Mon, Nov 6, 2006	14.91	14.93	14.87	14.93
1046	NYSE	NVG	Fri, Nov 3, 2006	14.91	14.91	14.84	14.86
1045	NYSE	NVG	Thu, Nov 2, 2006	14.85	14.94	14.85	14.90
1044	NYSE	NVG	Wed, Nov 1, 2006	14.96	14.96	14.78	14.86
1043	NYSE	NVG	Tue, Oct 31, 2006	14.94	14.94	14.79	14.89
1042	NYSE	NVG	Mon, Oct 30, 2006	14.88	14.90	14.77	14.84
1041	NYSE	NVG	Fri, Oct 27, 2006	14.90	14.90	14.78	14.80
1040	NYSE	NVG	Thu, Oct 26, 2006	14.78	14.88	14.77	14.78
1039	NYSE	NVG	Wed, Oct 25, 2006	14.85	14.87	14.80	14.80
1038	NYSE	NVG	Tue, Oct 24, 2006	14.85	14.89	14.81	14.86
1037	NYSE	NVG	Mon, Oct 23, 2006	14.84	14.92	14.84	14.91
1036	NYSE	NVG	Fri, Oct 20, 2006	14.86	14.89	14.77	14.89
1035	NYSE	NVG	Thu, Oct 19, 2006	14.71	14.83	14.68	14.83
1034	NYSE	NVG	Wed, Oct 18, 2006	14.86	14.86	14.68	14.75
1033	NYSE	NVG	Tue, Oct 17, 2006	14.77	14.79	14.68	14.71
1032	NYSE	NVG	Mon, Oct 16, 2006	14.48	14.77	14.48	14.73
1031	NYSE	NVG	Fri, Oct 13, 2006	14.77	14.82	14.65	14.65
1030	NYSE	NVG	Thu, Oct 12, 2006	14.83	14.88	14.78	14.87
1029	NYSE	NVG	Wed, Oct 11, 2006	14.90	14.90	14.75	14.81
1028	NYSE	NVG	Tue, Oct 10, 2006	14.94	14.94	14.89	14.92
1027	NYSE	NVG	Mon, Oct 9, 2006	14.86	14.93	14.86	14.87
1026	NYSE	NVG	Fri, Oct 6, 2006	14.91	14.95	14.85	14.95
1025	NYSE	NVG	Thu, Oct 5, 2006	14.96	14.96	14.79	14.93
1024	NYSE	NVG	Wed, Oct 4, 2006	14.85	14.95	14.85	14.93
1023	NYSE	NVG	Tue, Oct 3, 2006	14.91	14.96	14.85	14.90
1022	NYSE	NVG	Mon, Oct 2, 2006	14.80	14.94	14.80	14.86
1021	NYSE	NVG	Fri, Sep 29, 2006	14.97	14.98	14.80	14.86
1020	NYSE	NVG	Thu, Sep 28, 2006	14.83	14.94	14.83	14.94
1019	NYSE	NVG	Wed, Sep 27, 2006	14.79	14.95	14.79	14.91
1018	NYSE	NVG	Tue, Sep 26, 2006	14.87	14.88	14.80	14.81
1017	NYSE	NVG	Mon, Sep 25, 2006	14.77	14.88	14.77	14.87
1016	NYSE	NVG	Fri, Sep 22, 2006	14.80	14.90	14.70	14.77
1015	NYSE	NVG	Thu, Sep 21, 2006	14.70	14.83	14.70	14.78
1014	NYSE	NVG	Wed, Sep 20, 2006	14.82	14.82	14.73	14.76
1013	NYSE	NVG	Tue, Sep 19, 2006	14.80	14.86	14.72	14.80
1012	NYSE	NVG	Mon, Sep 18, 2006	14.90	14.90	14.76	14.85
1011	NYSE	NVG	Fri, Sep 15, 2006	14.80	14.94	14.77	14.81
1010	NYSE	NVG	Thu, Sep 14, 2006	14.92	14.92	14.73	14.77
1009	NYSE	NVG	Wed, Sep 13, 2006	14.79	14.97	14.78	14.89
1008	NYSE	NVG	Tue, Sep 12, 2006	14.83	14.93	14.83	14.88
1007	NYSE	NVG	Mon, Sep 11, 2006	14.90	15.01	14.88	14.94
1006	NYSE	NVG	Fri, Sep 8, 2006	14.88	14.99	14.88	14.99
1005	NYSE	NVG	Thu, Sep 7, 2006	14.93	14.95	14.76	14.91
1004	NYSE	NVG	Wed, Sep 6, 2006	15.05	15.05	14.84	14.93
1003	NYSE	NVG	Tue, Sep 5, 2006	15.03	15.09	15.00	15.04
1002	NYSE	NVG	Fri, Sep 1, 2006	15.16	15.16	15.05	15.05
1001	NYSE	NVG	Thu, Aug 31, 2006	15.10	15.12	14.97	15.06
1000	NYSE	NVG	Wed, Aug 30, 2006	15.10	15.13	15.01	15.07
999	NYSE	NVG	Tue, Aug 29, 2006	14.87	15.08	14.87	15.08
998	NYSE	NVG	Mon, Aug 28, 2006	15.01	15.10	15.00	15.07
997	NYSE	NVG	Fri, Aug 25, 2006	15.04	15.10	14.94	15.00
996	NYSE	NVG	Thu, Aug 24, 2006	15.03	15.09	14.99	15.09
995	NYSE	NVG	Wed, Aug 23, 2006	15.09	15.09	14.91	14.94
994	NYSE	NVG	Tue, Aug 22, 2006	15.02	15.05	14.95	15.05
993	NYSE	NVG	Mon, Aug 21, 2006	14.93	15.04	14.93	15.00
992	NYSE	NVG	Fri, Aug 18, 2006	14.94	15.00	14.94	15.00
991	NYSE	NVG	Thu, Aug 17, 2006	15.05	15.05	14.96	14.99
990	NYSE	NVG	Wed, Aug 16, 2006	14.97	15.05	14.97	15.02
989	NYSE	NVG	Tue, Aug 15, 2006	14.96	15.04	14.94	15.00
988	NYSE	NVG	Mon, Aug 14, 2006	15.00	15.00	14.88	14.99
987	NYSE	NVG	Fri, Aug 11, 2006	15.01	15.05	14.89	14.96
986	NYSE	NVG	Thu, Aug 10, 2006	15.12	15.13	14.97	15.12
985	NYSE	NVG	Wed, Aug 9, 2006	15.09	15.11	15.02	15.07
984	NYSE	NVG	Tue, Aug 8, 2006	15.10	15.20	15.08	15.11
983	NYSE	NVG	Mon, Aug 7, 2006	15.17	15.23	15.07	15.13
982	NYSE	NVG	Fri, Aug 4, 2006	14.98	15.19	14.95	15.10
981	NYSE	NVG	Thu, Aug 3, 2006	14.93	15.13	14.93	15.01
980	NYSE	NVG	Wed, Aug 2, 2006	14.91	15.00	14.90	14.93
979	NYSE	NVG	Tue, Aug 1, 2006	14.97	14.99	14.87	14.94
978	NYSE	NVG	Mon, Jul 31, 2006	14.96	14.97	14.77	14.89
977	NYSE	NVG	Fri, Jul 28, 2006	14.73	14.92	14.68	14.84
976	NYSE	NVG	Thu, Jul 27, 2006	14.79	14.83	14.68	14.75
975	NYSE	NVG	Wed, Jul 26, 2006	14.55	14.76	14.55	14.75
974	NYSE	NVG	Tue, Jul 25, 2006	14.33	14.53	14.31	14.50
973	NYSE	NVG	Mon, Jul 24, 2006	14.37	14.37	14.27	14.37
972	NYSE	NVG	Fri, Jul 21, 2006	14.38	14.40	14.30	14.35
971	NYSE	NVG	Thu, Jul 20, 2006	14.39	14.45	14.32	14.37
970	NYSE	NVG	Wed, Jul 19, 2006	14.37	14.41	14.32	14.41
969	NYSE	NVG	Tue, Jul 18, 2006	14.33	14.34	14.24	14.30
968	NYSE	NVG	Mon, Jul 17, 2006	14.37	14.41	14.33	14.35
967	NYSE	NVG	Fri, Jul 14, 2006	14.35	14.41	14.30	14.41
966	NYSE	NVG	Thu, Jul 13, 2006	14.15	14.32	14.15	14.30
965	NYSE	NVG	Wed, Jul 12, 2006	14.48	14.48	14.30	14.35
964	NYSE	NVG	Tue, Jul 11, 2006	14.32	14.62	14.32	14.55
963	NYSE	NVG	Mon, Jul 10, 2006	14.54	14.54	14.30	14.37
962	NYSE	NVG	Fri, Jul 7, 2006	14.18	14.30	14.18	14.29
961	NYSE	NVG	Thu, Jul 6, 2006	14.13	14.19	14.10	14.18
960	NYSE	NVG	Wed, Jul 5, 2006	14.24	14.24	14.02	14.16
959	NYSE	NVG	Mon, Jul 3, 2006	14.15	14.23	14.06	14.23
958	NYSE	NVG	Fri, Jun 30, 2006	14.00	14.11	13.97	14.08
957	NYSE	NVG	Thu, Jun 29, 2006	14.00	14.00	13.99	14.00
956	NYSE	NVG	Wed, Jun 28, 2006	14.10	14.13	14.00	14.00
955	NYSE	NVG	Tue, Jun 27, 2006	14.11	14.15	14.00	14.06
954	NYSE	NVG	Mon, Jun 26, 2006	14.05	14.13	14.01	14.08
953	NYSE	NVG	Fri, Jun 23, 2006	14.07	14.13	14.01	14.11
952	NYSE	NVG	Thu, Jun 22, 2006	14.12	14.20	14.02	14.04
951	NYSE	NVG	Wed, Jun 21, 2006	14.25	14.37	14.00	14.19
950	NYSE	NVG	Tue, Jun 20, 2006	14.46	14.65	14.22	14.23
949	NYSE	NVG	Mon, Jun 19, 2006	14.55	14.55	14.37	14.42
948	NYSE	NVG	Fri, Jun 16, 2006	14.32	14.43	14.27	14.33
947	NYSE	NVG	Thu, Jun 15, 2006	14.35	14.50	14.33	14.33
946	NYSE	NVG	Wed, Jun 14, 2006	14.57	14.57	14.35	14.45
945	NYSE	NVG	Tue, Jun 13, 2006	14.50	14.52	14.38	14.45
944	NYSE	NVG	Mon, Jun 12, 2006	14.62	14.68	14.52	14.63
943	NYSE	NVG	Fri, Jun 9, 2006	14.72	14.72	14.60	14.60
942	NYSE	NVG	Thu, Jun 8, 2006	14.70	14.72	14.60	14.72
941	NYSE	NVG	Wed, Jun 7, 2006	14.65	14.77	14.51	14.62
940	NYSE	NVG	Tue, Jun 6, 2006	14.65	14.65	14.53	14.62
939	NYSE	NVG	Mon, Jun 5, 2006	14.72	14.72	14.56	14.59
938	NYSE	NVG	Fri, Jun 2, 2006	14.63	14.80	14.60	14.72
937	NYSE	NVG	Thu, Jun 1, 2006	14.66	14.66	14.51	14.63
936	NYSE	NVG	Wed, May 31, 2006	14.80	14.83	14.52	14.54
935	NYSE	NVG	Tue, May 30, 2006	14.73	14.73	14.56	14.66
934	NYSE	NVG	Fri, May 26, 2006	14.58	14.68	14.58	14.68
933	NYSE	NVG	Thu, May 25, 2006	14.68	14.68	14.48	14.55
932	NYSE	NVG	Wed, May 24, 2006	14.64	14.68	14.51	14.55
931	NYSE	NVG	Tue, May 23, 2006	14.72	14.72	14.48	14.59
930	NYSE	NVG	Mon, May 22, 2006	14.82	14.82	14.44	14.60
929	NYSE	NVG	Fri, May 19, 2006	14.70	14.72	14.62	14.72
928	NYSE	NVG	Thu, May 18, 2006	14.63	14.66	14.55	14.60
927	NYSE	NVG	Wed, May 17, 2006	14.80	14.80	14.60	14.66
926	NYSE	NVG	Tue, May 16, 2006	14.63	14.90	14.62	14.79
925	NYSE	NVG	Mon, May 15, 2006	14.51	14.58	14.49	14.58
924	NYSE	NVG	Fri, May 12, 2006	14.49	14.58	14.43	14.49
923	NYSE	NVG	Thu, May 11, 2006	14.62	14.72	14.57	14.60
922	NYSE	NVG	Wed, May 10, 2006	14.78	14.80	14.72	14.75
921	NYSE	NVG	Tue, May 9, 2006	14.82	14.91	14.72	14.75
920	NYSE	NVG	Mon, May 8, 2006	14.99	14.99	14.79	14.82
919	NYSE	NVG	Fri, May 5, 2006	14.96	14.96	14.82	14.89
918	NYSE	NVG	Thu, May 4, 2006	15.00	15.05	14.88	14.93
917	NYSE	NVG	Wed, May 3, 2006	14.98	15.04	14.95	15.04
916	NYSE	NVG	Tue, May 2, 2006	15.05	15.14	14.93	15.01
915	NYSE	NVG	Mon, May 1, 2006	15.17	15.18	15.02	15.05
914	NYSE	NVG	Fri, Apr 28, 2006	15.05	15.10	14.97	15.10
913	NYSE	NVG	Thu, Apr 27, 2006	14.97	15.03	14.91	14.99
912	NYSE	NVG	Wed, Apr 26, 2006	14.98	15.02	14.94	15.00
911	NYSE	NVG	Tue, Apr 25, 2006	14.93	14.99	14.90	14.98
910	NYSE	NVG	Mon, Apr 24, 2006	15.10	15.10	14.86	14.98
909	NYSE	NVG	Fri, Apr 21, 2006	14.90	15.00	14.84	15.00
908	NYSE	NVG	Thu, Apr 20, 2006	14.95	14.95	14.83	14.90
907	NYSE	NVG	Wed, Apr 19, 2006	14.80	14.92	14.78	14.88
906	NYSE	NVG	Tue, Apr 18, 2006	14.56	14.88	14.56	14.72
905	NYSE	NVG	Mon, Apr 17, 2006	14.81	14.81	14.52	14.61
904	NYSE	NVG	Thu, Apr 13, 2006	14.88	14.89	14.79	14.89
903	NYSE	NVG	Wed, Apr 12, 2006	14.97	14.97	14.75	14.88
902	NYSE	NVG	Tue, Apr 11, 2006	14.97	14.98	14.85	14.88
901	NYSE	NVG	Mon, Apr 10, 2006	15.08	15.13	14.95	14.98
900	NYSE	NVG	Fri, Apr 7, 2006	15.05	15.05	14.95	14.97
899	NYSE	NVG	Thu, Apr 6, 2006	14.97	15.10	14.95	15.07
898	NYSE	NVG	Wed, Apr 5, 2006	14.95	15.00	14.94	14.99
897	NYSE	NVG	Tue, Apr 4, 2006	14.96	15.01	14.92	14.98
896	NYSE	NVG	Mon, Apr 3, 2006	14.98	15.00	14.86	14.93
895	NYSE	NVG	Fri, Mar 31, 2006	14.95	14.97	14.85	14.88
894	NYSE	NVG	Thu, Mar 30, 2006	14.97	14.97	14.87	14.87
893	NYSE	NVG	Wed, Mar 29, 2006	14.95	14.97	14.85	14.85
892	NYSE	NVG	Tue, Mar 28, 2006	14.97	14.97	14.81	14.81
891	NYSE	NVG	Mon, Mar 27, 2006	14.90	14.94	14.82	14.82
890	NYSE	NVG	Fri, Mar 24, 2006	14.84	14.96	14.80	14.80
889	NYSE	NVG	Thu, Mar 23, 2006	14.82	14.94	14.82	14.90
888	NYSE	NVG	Wed, Mar 22, 2006	15.00	15.00	14.50	14.94
887	NYSE	NVG	Tue, Mar 21, 2006	15.00	15.07	14.90	15.00
886	NYSE	NVG	Mon, Mar 20, 2006	15.09	15.09	14.98	15.08
885	NYSE	NVG	Fri, Mar 17, 2006	14.88	15.01	14.88	15.01
884	NYSE	NVG	Thu, Mar 16, 2006	14.90	15.00	14.90	14.92
883	NYSE	NVG	Wed, Mar 15, 2006	14.95	14.96	14.90	14.91
882	NYSE	NVG	Tue, Mar 14, 2006	14.91	14.98	14.88	14.91
881	NYSE	NVG	Mon, Mar 13, 2006	15.03	15.03	14.91	14.92
880	NYSE	NVG	Fri, Mar 10, 2006	14.95	15.09	14.85	15.05
879	NYSE	NVG	Thu, Mar 9, 2006	15.04	15.16	14.98	15.07
878	NYSE	NVG	Wed, Mar 8, 2006	14.88	15.05	14.87	15.04
877	NYSE	NVG	Tue, Mar 7, 2006	14.87	15.00	14.87	14.94
876	NYSE	NVG	Mon, Mar 6, 2006	15.00	15.00	14.92	15.00
875	NYSE	NVG	Fri, Mar 3, 2006	14.96	15.05	14.96	15.05
874	NYSE	NVG	Thu, Mar 2, 2006	14.98	15.04	14.93	15.04
873	NYSE	NVG	Wed, Mar 1, 2006	15.04	15.04	14.92	14.98
872	NYSE	NVG	Tue, Feb 28, 2006	15.02	15.05	14.96	15.04
871	NYSE	NVG	Mon, Feb 27, 2006	15.00	15.02	15.00	15.01
870	NYSE	NVG	Fri, Feb 24, 2006	14.92	15.00	14.92	15.00
869	NYSE	NVG	Thu, Feb 23, 2006	14.95	15.03	14.91	15.00
868	NYSE	NVG	Wed, Feb 22, 2006	14.96	15.03	14.92	15.02
867	NYSE	NVG	Tue, Feb 21, 2006	15.01	15.01	14.88	14.89
866	NYSE	NVG	Fri, Feb 17, 2006	14.94	15.01	14.86	15.01
865	NYSE	NVG	Thu, Feb 16, 2006	14.94	14.97	14.90	14.94
864	NYSE	NVG	Wed, Feb 15, 2006	14.77	14.94	14.77	14.94
863	NYSE	NVG	Tue, Feb 14, 2006	14.77	14.87	14.75	14.87
862	NYSE	NVG	Mon, Feb 13, 2006	14.87	14.88	14.65	14.74
861	NYSE	NVG	Fri, Feb 10, 2006	14.99	15.00	14.83	14.85
860	NYSE	NVG	Thu, Feb 9, 2006	15.02	15.02	14.87	14.98
859	NYSE	NVG	Wed, Feb 8, 2006	15.00	15.00	14.92	14.93
858	NYSE	NVG	Tue, Feb 7, 2006	15.01	15.02	14.92	15.01
857	NYSE	NVG	Mon, Feb 6, 2006	14.90	14.94	14.88	14.91
856	NYSE	NVG	Fri, Feb 3, 2006	14.85	14.90	14.78	14.87
855	NYSE	NVG	Thu, Feb 2, 2006	15.04	15.07	14.86	14.92
854	NYSE	NVG	Wed, Feb 1, 2006	15.04	15.08	14.92	15.03
853	NYSE	NVG	Tue, Jan 31, 2006	14.82	15.03	14.82	15.03
852	NYSE	NVG	Mon, Jan 30, 2006	14.94	15.00	14.90	14.92
851	NYSE	NVG	Fri, Jan 27, 2006	14.94	15.05	14.93	14.94
850	NYSE	NVG	Thu, Jan 26, 2006	14.95	15.15	14.91	15.00
849	NYSE	NVG	Wed, Jan 25, 2006	14.98	15.00	14.90	14.95
848	NYSE	NVG	Tue, Jan 24, 2006	14.80	14.98	14.80	14.98
847	NYSE	NVG	Mon, Jan 23, 2006	14.88	14.92	14.82	14.90
846	NYSE	NVG	Fri, Jan 20, 2006	14.80	14.93	14.80	14.86
845	NYSE	NVG	Thu, Jan 19, 2006	14.91	15.00	14.86	14.90
844	NYSE	NVG	Wed, Jan 18, 2006	14.72	14.96	14.72	14.96
843	NYSE	NVG	Tue, Jan 17, 2006	14.75	14.76	14.57	14.72
842	NYSE	NVG	Fri, Jan 13, 2006	14.55	14.70	14.44	14.70
841	NYSE	NVG	Thu, Jan 12, 2006	14.56	14.80	14.46	14.55
840	NYSE	NVG	Wed, Jan 11, 2006	14.47	14.59	14.47	14.50
839	NYSE	NVG	Tue, Jan 10, 2006	14.70	14.71	14.55	14.60
838	NYSE	NVG	Mon, Jan 9, 2006	14.48	14.70	14.45	14.65
837	NYSE	NVG	Fri, Jan 6, 2006	14.40	14.58	14.37	14.58
836	NYSE	NVG	Thu, Jan 5, 2006	14.34	14.41	14.26	14.36
835	NYSE	NVG	Wed, Jan 4, 2006	14.24	14.34	14.17	14.34
834	NYSE	NVG	Tue, Jan 3, 2006	14.05	14.24	14.05	14.23
833	NYSE	NVG	Fri, Dec 30, 2005	14.12	14.25	14.02	14.12
832	NYSE	NVG	Thu, Dec 29, 2005	14.02	14.17	14.00	14.17
831	NYSE	NVG	Wed, Dec 28, 2005	14.05	14.17	14.00	14.08
830	NYSE	NVG	Tue, Dec 27, 2005	13.95	14.09	13.86	14.05
829	NYSE	NVG	Fri, Dec 23, 2005	14.05	14.07	13.97	14.00
828	NYSE	NVG	Thu, Dec 22, 2005	13.87	14.10	13.83	14.06
827	NYSE	NVG	Wed, Dec 21, 2005	13.95	14.10	13.95	13.99
826	NYSE	NVG	Tue, Dec 20, 2005	14.04	14.12	13.93	14.00
825	NYSE	NVG	Mon, Dec 19, 2005	13.90	14.04	13.88	14.03
824	NYSE	NVG	Fri, Dec 16, 2005	13.87	13.98	13.85	13.97
823	NYSE	NVG	Thu, Dec 15, 2005	13.97	13.99	13.86	13.90
822	NYSE	NVG	Wed, Dec 14, 2005	14.00	14.05	13.93	13.93
821	NYSE	NVG	Tue, Dec 13, 2005	13.95	14.03	13.88	13.97
820	NYSE	NVG	Mon, Dec 12, 2005	14.01	14.11	14.00	14.11
819	NYSE	NVG	Fri, Dec 9, 2005	14.12	14.12	14.05	14.10
818	NYSE	NVG	Thu, Dec 8, 2005	14.02	14.10	14.00	14.10
817	NYSE	NVG	Wed, Dec 7, 2005	13.99	14.09	13.92	14.05
816	NYSE	NVG	Tue, Dec 6, 2005	14.13	14.13	13.91	14.00
815	NYSE	NVG	Mon, Dec 5, 2005	14.00	14.10	13.95	14.04
814	NYSE	NVG	Fri, Dec 2, 2005	14.09	14.17	14.09	14.14
813	NYSE	NVG	Thu, Dec 1, 2005	14.15	14.17	14.03	14.03
812	NYSE	NVG	Wed, Nov 30, 2005	14.24	14.24	13.94	14.03
811	NYSE	NVG	Tue, Nov 29, 2005	14.16	14.17	14.09	14.15
810	NYSE	NVG	Mon, Nov 28, 2005	14.10	14.14	14.09	14.14
809	NYSE	NVG	Fri, Nov 25, 2005	13.89	14.07	13.88	14.07
808	NYSE	NVG	Wed, Nov 23, 2005	13.94	14.02	13.91	13.93
807	NYSE	NVG	Tue, Nov 22, 2005	14.01	14.08	13.93	14.00
806	NYSE	NVG	Mon, Nov 21, 2005	13.95	14.12	13.91	14.03
805	NYSE	NVG	Fri, Nov 18, 2005	13.96	14.12	13.93	13.95
804	NYSE	NVG	Thu, Nov 17, 2005	14.08	14.17	14.02	14.06
803	NYSE	NVG	Wed, Nov 16, 2005	14.10	14.13	14.00	14.13
802	NYSE	NVG	Tue, Nov 15, 2005	14.02	14.12	13.98	14.05
801	NYSE	NVG	Mon, Nov 14, 2005	14.11	14.11	13.98	14.07
800	NYSE	NVG	Fri, Nov 11, 2005	14.12	14.16	14.07	14.16
799	NYSE	NVG	Thu, Nov 10, 2005	14.05	14.11	13.97	14.06
798	NYSE	NVG	Wed, Nov 9, 2005	14.14	14.17	14.00	14.13
797	NYSE	NVG	Tue, Nov 8, 2005	14.09	14.19	14.09	14.18
796	NYSE	NVG	Mon, Nov 7, 2005	13.95	14.12	13.87	14.12
795	NYSE	NVG	Fri, Nov 4, 2005	14.14	14.17	13.99	14.06
794	NYSE	NVG	Thu, Nov 3, 2005	14.04	14.14	14.04	14.12
793	NYSE	NVG	Wed, Nov 2, 2005	14.22	14.22	14.05	14.08
792	NYSE	NVG	Tue, Nov 1, 2005	14.18	14.22	14.15	14.20
791	NYSE	NVG	Mon, Oct 31, 2005	14.12	14.20	14.10	14.17
790	NYSE	NVG	Fri, Oct 28, 2005	14.20	14.25	14.03	14.12
789	NYSE	NVG	Thu, Oct 27, 2005	14.23	14.30	14.13	14.19
788	NYSE	NVG	Wed, Oct 26, 2005	14.21	14.22	14.08	14.18
787	NYSE	NVG	Tue, Oct 25, 2005	14.20	14.34	14.20	14.24
786	NYSE	NVG	Mon, Oct 24, 2005	14.26	14.30	14.15	14.29
785	NYSE	NVG	Fri, Oct 21, 2005	14.15	14.24	14.11	14.24
784	NYSE	NVG	Thu, Oct 20, 2005	13.98	14.11	13.97	14.11
783	NYSE	NVG	Wed, Oct 19, 2005	14.02	14.11	13.96	13.96
782	NYSE	NVG	Tue, Oct 18, 2005	14.06	14.10	14.02	14.07
781	NYSE	NVG	Mon, Oct 17, 2005	14.13	14.24	14.07	14.10
780	NYSE	NVG	Fri, Oct 14, 2005	14.12	14.29	14.12	14.14
779	NYSE	NVG	Thu, Oct 13, 2005	14.37	14.38	14.14	14.18
778	NYSE	NVG	Wed, Oct 12, 2005	14.41	14.41	14.35	14.37
777	NYSE	NVG	Tue, Oct 11, 2005	14.55	14.73	14.51	14.54
776	NYSE	NVG	Mon, Oct 10, 2005	14.44	14.51	14.44	14.50
775	NYSE	NVG	Fri, Oct 7, 2005	14.46	14.50	14.42	14.50
774	NYSE	NVG	Thu, Oct 6, 2005	14.45	14.51	14.42	14.43
773	NYSE	NVG	Wed, Oct 5, 2005	14.45	14.55	14.45	14.50
772	NYSE	NVG	Tue, Oct 4, 2005	14.55	14.55	14.45	14.50
771	NYSE	NVG	Mon, Oct 3, 2005	14.51	14.53	14.45	14.52
770	NYSE	NVG	Fri, Sep 30, 2005	14.50	14.50	14.43	14.46
769	NYSE	NVG	Thu, Sep 29, 2005	14.55	14.55	14.40	14.45
768	NYSE	NVG	Wed, Sep 28, 2005	14.40	14.55	14.40	14.55
767	NYSE	NVG	Tue, Sep 27, 2005	14.50	14.50	14.40	14.43
766	NYSE	NVG	Mon, Sep 26, 2005	14.47	14.50	14.41	14.49
765	NYSE	NVG	Fri, Sep 23, 2005	14.46	14.47	14.39	14.47
764	NYSE	NVG	Thu, Sep 22, 2005	14.50	14.51	14.34	14.46
763	NYSE	NVG	Wed, Sep 21, 2005	14.49	14.55	14.43	14.55
762	NYSE	NVG	Tue, Sep 20, 2005	14.62	14.62	14.44	14.46
761	NYSE	NVG	Mon, Sep 19, 2005	14.62	14.63	14.58	14.58
760	NYSE	NVG	Fri, Sep 16, 2005	14.64	14.67	14.55	14.55
759	NYSE	NVG	Thu, Sep 15, 2005	14.85	14.86	14.67	14.68
758	NYSE	NVG	Wed, Sep 14, 2005	14.90	14.92	14.85	14.87
757	NYSE	NVG	Tue, Sep 13, 2005	14.86	14.90	14.85	14.89
756	NYSE	NVG	Mon, Sep 12, 2005	14.89	14.95	14.89	14.95
755	NYSE	NVG	Fri, Sep 9, 2005	14.88	14.92	14.87	14.92
754	NYSE	NVG	Thu, Sep 8, 2005	14.87	14.89	14.83	14.88
753	NYSE	NVG	Wed, Sep 7, 2005	14.81	14.89	14.81	14.85
752	NYSE	NVG	Tue, Sep 6, 2005	14.82	14.86	14.76	14.81
751	NYSE	NVG	Fri, Sep 2, 2005	14.76	14.86	14.68	14.86
750	NYSE	NVG	Thu, Sep 1, 2005	14.75	14.78	14.68	14.73
749	NYSE	NVG	Wed, Aug 31, 2005	14.74	14.76	14.67	14.72
748	NYSE	NVG	Tue, Aug 30, 2005	14.70	14.75	14.67	14.73
747	NYSE	NVG	Mon, Aug 29, 2005	14.70	14.72	14.66	14.70
746	NYSE	NVG	Fri, Aug 26, 2005	14.70	14.70	14.59	14.68
745	NYSE	NVG	Thu, Aug 25, 2005	14.63	14.72	14.60	14.70
744	NYSE	NVG	Wed, Aug 24, 2005	14.57	14.70	14.57	14.66
743	NYSE	NVG	Tue, Aug 23, 2005	14.61	14.71	14.57	14.67
742	NYSE	NVG	Mon, Aug 22, 2005	14.69	14.70	14.62	14.64
741	NYSE	NVG	Fri, Aug 19, 2005	14.70	14.70	14.65	14.68
740	NYSE	NVG	Thu, Aug 18, 2005	14.70	14.75	14.69	14.69
739	NYSE	NVG	Wed, Aug 17, 2005	14.74	14.75	14.70	14.73
738	NYSE	NVG	Tue, Aug 16, 2005	14.75	14.78	14.69	14.74
737	NYSE	NVG	Mon, Aug 15, 2005	14.71	14.83	14.69	14.70
736	NYSE	NVG	Fri, Aug 12, 2005	14.80	14.85	14.70	14.74
735	NYSE	NVG	Thu, Aug 11, 2005	14.80	14.80	14.74	14.78
734	NYSE	NVG	Wed, Aug 10, 2005	14.84	14.86	14.77	14.80
733	NYSE	NVG	Tue, Aug 9, 2005	14.85	14.86	14.80	14.86
732	NYSE	NVG	Mon, Aug 8, 2005	14.85	14.85	14.77	14.82
731	NYSE	NVG	Fri, Aug 5, 2005	14.93	14.93	14.75	14.82
730	NYSE	NVG	Thu, Aug 4, 2005	14.88	14.90	14.78	14.88
729	NYSE	NVG	Wed, Aug 3, 2005	14.84	14.88	14.76	14.83
728	NYSE	NVG	Tue, Aug 2, 2005	14.86	14.94	14.76	14.79
727	NYSE	NVG	Mon, Aug 1, 2005	14.98	14.98	14.81	14.88
726	NYSE	NVG	Fri, Jul 29, 2005	14.98	14.98	14.80	14.91
725	NYSE	NVG	Thu, Jul 28, 2005	14.85	14.94	14.84	14.94
724	NYSE	NVG	Wed, Jul 27, 2005	14.82	14.89	14.76	14.87
723	NYSE	NVG	Tue, Jul 26, 2005	14.75	14.79	14.70	14.79
722	NYSE	NVG	Mon, Jul 25, 2005	14.69	14.75	14.69	14.70
721	NYSE	NVG	Fri, Jul 22, 2005	14.74	14.75	14.70	14.71
720	NYSE	NVG	Thu, Jul 21, 2005	14.82	14.84	14.67	14.74
719	NYSE	NVG	Wed, Jul 20, 2005	14.82	14.86	14.75	14.82
718	NYSE	NVG	Tue, Jul 19, 2005	14.76	14.82	14.75	14.82
717	NYSE	NVG	Mon, Jul 18, 2005	14.88	14.88	14.75	14.76
716	NYSE	NVG	Fri, Jul 15, 2005	14.82	14.85	14.82	14.85
715	NYSE	NVG	Thu, Jul 14, 2005	14.84	14.84	14.80	14.84
714	NYSE	NVG	Wed, Jul 13, 2005	14.88	14.90	14.75	14.83
713	NYSE	NVG	Tue, Jul 12, 2005	14.95	14.95	14.84	14.94
712	NYSE	NVG	Mon, Jul 11, 2005	14.86	14.90	14.84	14.90
711	NYSE	NVG	Fri, Jul 8, 2005	14.83	14.96	14.83	14.90
710	NYSE	NVG	Thu, Jul 7, 2005	14.90	14.90	14.78	14.84
709	NYSE	NVG	Wed, Jul 6, 2005	14.77	14.85	14.75	14.85
708	NYSE	NVG	Tue, Jul 5, 2005	14.80	14.81	14.75	14.79
707	NYSE	NVG	Fri, Jul 1, 2005	14.84	14.84	14.72	14.77
706	NYSE	NVG	Thu, Jun 30, 2005	14.84	14.84	14.73	14.75
705	NYSE	NVG	Wed, Jun 29, 2005	14.74	14.79	14.71	14.79
704	NYSE	NVG	Tue, Jun 28, 2005	14.71	14.77	14.70	14.72
703	NYSE	NVG	Mon, Jun 27, 2005	14.70	14.78	14.70	14.73
702	NYSE	NVG	Fri, Jun 24, 2005	14.74	14.77	14.70	14.70
701	NYSE	NVG	Thu, Jun 23, 2005	14.79	14.79	14.72	14.72
700	NYSE	NVG	Wed, Jun 22, 2005	14.75	14.80	14.71	14.78
699	NYSE	NVG	Tue, Jun 21, 2005	14.65	14.79	14.62	14.73
698	NYSE	NVG	Mon, Jun 20, 2005	14.69	14.70	14.65	14.69
697	NYSE	NVG	Fri, Jun 17, 2005	14.67	14.72	14.62	14.72
696	NYSE	NVG	Thu, Jun 16, 2005	14.49	14.62	14.43	14.62
695	NYSE	NVG	Wed, Jun 15, 2005	14.45	14.49	14.38	14.47
694	NYSE	NVG	Tue, Jun 14, 2005	14.42	14.49	14.35	14.45
693	NYSE	NVG	Mon, Jun 13, 2005	14.47	14.53	14.43	14.45
692	NYSE	NVG	Fri, Jun 10, 2005	14.68	14.68	14.52	14.63
691	NYSE	NVG	Thu, Jun 9, 2005	14.79	14.80	14.68	14.75
690	NYSE	NVG	Wed, Jun 8, 2005	14.90	14.90	14.80	14.85
689	NYSE	NVG	Tue, Jun 7, 2005	14.80	14.91	14.80	14.90
688	NYSE	NVG	Mon, Jun 6, 2005	14.90	14.91	14.80	14.91
687	NYSE	NVG	Fri, Jun 3, 2005	14.79	14.91	14.79	14.90
686	NYSE	NVG	Thu, Jun 2, 2005	14.82	14.90	14.75	14.84
685	NYSE	NVG	Wed, Jun 1, 2005	14.70	14.85	14.65	14.82
684	NYSE	NVG	Tue, May 31, 2005	14.65	14.66	14.52	14.66
683	NYSE	NVG	Fri, May 27, 2005	14.47	14.55	14.45	14.53
682	NYSE	NVG	Thu, May 26, 2005	14.50	14.55	14.43	14.44
681	NYSE	NVG	Wed, May 25, 2005	14.54	14.60	14.47	14.50
680	NYSE	NVG	Tue, May 24, 2005	14.45	14.69	14.40	14.50
679	NYSE	NVG	Mon, May 23, 2005	14.44	14.55	14.44	14.45
678	NYSE	NVG	Fri, May 20, 2005	14.47	14.49	14.39	14.39
677	NYSE	NVG	Thu, May 19, 2005	14.45	14.47	14.42	14.47
676	NYSE	NVG	Wed, May 18, 2005	14.44	14.46	14.40	14.45
675	NYSE	NVG	Tue, May 17, 2005	14.39	14.44	14.31	14.43
674	NYSE	NVG	Mon, May 16, 2005	14.39	14.43	14.33	14.38
673	NYSE	NVG	Fri, May 13, 2005	14.37	14.38	14.32	14.38
672	NYSE	NVG	Thu, May 12, 2005	14.32	14.33	14.24	14.32
671	NYSE	NVG	Wed, May 11, 2005	14.32	14.35	14.19	14.26
670	NYSE	NVG	Tue, May 10, 2005	14.30	14.43	14.30	14.35
669	NYSE	NVG	Mon, May 9, 2005	14.24	14.34	14.15	14.34
668	NYSE	NVG	Fri, May 6, 2005	14.25	14.32	14.22	14.31
667	NYSE	NVG	Thu, May 5, 2005	14.38	14.42	14.34	14.38
666	NYSE	NVG	Wed, May 4, 2005	14.37	14.43	14.35	14.38
665	NYSE	NVG	Tue, May 3, 2005	14.36	14.39	14.30	14.37
664	NYSE	NVG	Mon, May 2, 2005	14.33	14.36	14.25	14.36
663	NYSE	NVG	Fri, Apr 29, 2005	14.23	14.32	14.23	14.30
662	NYSE	NVG	Thu, Apr 28, 2005	14.13	14.24	14.13	14.22
661	NYSE	NVG	Wed, Apr 27, 2005	14.12	14.18	14.08	14.18
660	NYSE	NVG	Tue, Apr 26, 2005	14.06	14.12	14.05	14.11
659	NYSE	NVG	Mon, Apr 25, 2005	14.12	14.12	14.05	14.08
658	NYSE	NVG	Fri, Apr 22, 2005	14.10	14.12	14.05	14.12
657	NYSE	NVG	Thu, Apr 21, 2005	14.06	14.13	14.05	14.05
656	NYSE	NVG	Wed, Apr 20, 2005	14.16	14.16	14.02	14.10
655	NYSE	NVG	Tue, Apr 19, 2005	14.02	14.16	14.00	14.16
654	NYSE	NVG	Mon, Apr 18, 2005	13.99	14.07	13.95	14.07
653	NYSE	NVG	Fri, Apr 15, 2005	13.92	14.05	13.91	13.99
652	NYSE	NVG	Thu, Apr 14, 2005	14.00	14.01	13.92	13.92
651	NYSE	NVG	Wed, Apr 13, 2005	13.93	14.00	13.91	13.99
650	NYSE	NVG	Tue, Apr 12, 2005	13.93	13.97	13.88	13.97
649	NYSE	NVG	Mon, Apr 11, 2005	13.96	13.97	13.89	13.92
648	NYSE	NVG	Fri, Apr 8, 2005	14.13	14.13	13.93	13.93
647	NYSE	NVG	Thu, Apr 7, 2005	14.15	14.21	14.10	14.10
646	NYSE	NVG	Wed, Apr 6, 2005	14.08	14.15	14.05	14.15
645	NYSE	NVG	Tue, Apr 5, 2005	14.00	14.11	14.00	14.05
644	NYSE	NVG	Mon, Apr 4, 2005	14.00	14.08	13.90	14.01
643	NYSE	NVG	Fri, Apr 1, 2005	14.25	14.25	13.94	14.00
642	NYSE	NVG	Thu, Mar 31, 2005	13.70	13.89	13.70	13.89
641	NYSE	NVG	Wed, Mar 30, 2005	13.53	13.62	13.53	13.62
640	NYSE	NVG	Tue, Mar 29, 2005	13.61	13.62	13.52	13.52
639	NYSE	NVG	Mon, Mar 28, 2005	13.60	13.63	13.51	13.57
638	NYSE	NVG	Thu, Mar 24, 2005	13.58	13.65	13.55	13.60
637	NYSE	NVG	Wed, Mar 23, 2005	13.84	13.84	13.56	13.63
636	NYSE	NVG	Tue, Mar 22, 2005	13.95	13.98	13.85	13.88
635	NYSE	NVG	Mon, Mar 21, 2005	14.00	14.07	13.90	13.94
634	NYSE	NVG	Fri, Mar 18, 2005	14.09	14.11	14.00	14.00
633	NYSE	NVG	Thu, Mar 17, 2005	14.02	14.11	14.02	14.06
632	NYSE	NVG	Wed, Mar 16, 2005	14.05	14.11	13.99	14.02
631	NYSE	NVG	Tue, Mar 15, 2005	14.23	14.23	14.10	14.14
630	NYSE	NVG	Mon, Mar 14, 2005	14.35	14.35	14.18	14.18
629	NYSE	NVG	Fri, Mar 11, 2005	14.50	14.50	14.34	14.35
628	NYSE	NVG	Thu, Mar 10, 2005	14.50	14.56	14.45	14.53
627	NYSE	NVG	Wed, Mar 9, 2005	14.72	14.72	14.44	14.54
626	NYSE	NVG	Tue, Mar 8, 2005	14.69	14.75	14.61	14.68
625	NYSE	NVG	Mon, Mar 7, 2005	14.65	14.75	14.65	14.74
624	NYSE	NVG	Fri, Mar 4, 2005	14.65	14.75	14.65	14.70
623	NYSE	NVG	Thu, Mar 3, 2005	14.70	14.76	14.65	14.67
622	NYSE	NVG	Wed, Mar 2, 2005	14.72	14.72	14.67	14.70
621	NYSE	NVG	Tue, Mar 1, 2005	14.75	14.75	14.68	14.70
620	NYSE	NVG	Mon, Feb 28, 2005	14.88	14.88	14.70	14.72
619	NYSE	NVG	Fri, Feb 25, 2005	14.74	14.80	14.67	14.76
618	NYSE	NVG	Thu, Feb 24, 2005	14.70	14.79	14.61	14.67
617	NYSE	NVG	Wed, Feb 23, 2005	14.52	14.63	14.52	14.56
616	NYSE	NVG	Tue, Feb 22, 2005	14.75	14.75	14.53	14.56
615	NYSE	NVG	Fri, Feb 18, 2005	14.65	14.73	14.55	14.70
614	NYSE	NVG	Thu, Feb 17, 2005	14.80	14.90	14.70	14.81
613	NYSE	NVG	Wed, Feb 16, 2005	14.87	14.87	14.78	14.85
612	NYSE	NVG	Tue, Feb 15, 2005	14.84	14.86	14.78	14.85
611	NYSE	NVG	Mon, Feb 14, 2005	14.82	14.82	14.77	14.80
610	NYSE	NVG	Fri, Feb 11, 2005	14.72	14.86	14.72	14.82
609	NYSE	NVG	Thu, Feb 10, 2005	14.88	14.90	14.85	14.90
608	NYSE	NVG	Wed, Feb 9, 2005	14.82	14.88	14.82	14.88
607	NYSE	NVG	Tue, Feb 8, 2005	14.75	14.83	14.71	14.80
606	NYSE	NVG	Mon, Feb 7, 2005	14.84	14.85	14.81	14.81
605	NYSE	NVG	Fri, Feb 4, 2005	14.93	14.95	14.78	14.82
604	NYSE	NVG	Thu, Feb 3, 2005	14.73	14.93	14.68	14.93
603	NYSE	NVG	Wed, Feb 2, 2005	14.74	14.77	14.65	14.77
602	NYSE	NVG	Tue, Feb 1, 2005	14.74	14.74	14.65	14.69
601	NYSE	NVG	Mon, Jan 31, 2005	14.61	14.70	14.61	14.65
600	NYSE	NVG	Fri, Jan 28, 2005	14.45	14.61	14.45	14.60
599	NYSE	NVG	Thu, Jan 27, 2005	14.50	14.59	14.44	14.45
598	NYSE	NVG	Wed, Jan 26, 2005	14.36	14.52	14.36	14.45
597	NYSE	NVG	Tue, Jan 25, 2005	14.39	14.47	14.39	14.42
596	NYSE	NVG	Mon, Jan 24, 2005	14.46	14.50	14.38	14.44
595	NYSE	NVG	Fri, Jan 21, 2005	14.40	14.49	14.36	14.46
594	NYSE	NVG	Thu, Jan 20, 2005	14.45	14.54	14.40	14.40
593	NYSE	NVG	Wed, Jan 19, 2005	14.53	14.57	14.43	14.45
592	NYSE	NVG	Tue, Jan 18, 2005	14.40	14.50	14.40	14.47
591	NYSE	NVG	Fri, Jan 14, 2005	14.44	14.52	14.42	14.43
590	NYSE	NVG	Thu, Jan 13, 2005	14.44	14.55	14.42	14.44
589	NYSE	NVG	Wed, Jan 12, 2005	14.52	14.54	14.45	14.51
588	NYSE	NVG	Tue, Jan 11, 2005	14.59	14.59	14.54	14.56
587	NYSE	NVG	Mon, Jan 10, 2005	14.60	14.70	14.54	14.64
586	NYSE	NVG	Fri, Jan 7, 2005	14.49	14.71	14.49	14.62
585	NYSE	NVG	Thu, Jan 6, 2005	14.34	14.49	14.34	14.49
584	NYSE	NVG	Wed, Jan 5, 2005	14.19	14.36	14.10	14.32
583	NYSE	NVG	Tue, Jan 4, 2005	14.15	14.22	14.11	14.17
582	NYSE	NVG	Mon, Jan 3, 2005	14.09	14.14	14.02	14.11
581	NYSE	NVG	Fri, Dec 31, 2004	13.98	14.10	13.97	14.10
580	NYSE	NVG	Thu, Dec 30, 2004	14.05	14.06	14.00	14.01
579	NYSE	NVG	Wed, Dec 29, 2004	13.97	14.05	13.93	13.95
578	NYSE	NVG	Tue, Dec 28, 2004	13.90	13.96	13.87	13.94
577	NYSE	NVG	Mon, Dec 27, 2004	14.00	14.02	13.89	13.89
576	NYSE	NVG	Thu, Dec 23, 2004	14.00	14.05	13.93	13.98
575	NYSE	NVG	Wed, Dec 22, 2004	14.05	14.10	13.97	14.03
574	NYSE	NVG	Tue, Dec 21, 2004	14.12	14.16	14.02	14.02
573	NYSE	NVG	Mon, Dec 20, 2004	14.13	14.18	14.07	14.15
572	NYSE	NVG	Fri, Dec 17, 2004	14.16	14.18	14.04	14.13
571	NYSE	NVG	Thu, Dec 16, 2004	14.21	14.24	14.15	14.19
570	NYSE	NVG	Wed, Dec 15, 2004	14.16	14.27	14.15	14.21
569	NYSE	NVG	Tue, Dec 14, 2004	14.17	14.23	14.12	14.18
568	NYSE	NVG	Mon, Dec 13, 2004	14.35	14.35	14.13	14.29
567	NYSE	NVG	Fri, Dec 10, 2004	14.38	14.50	14.37	14.50
566	NYSE	NVG	Thu, Dec 9, 2004	14.40	14.46	14.36	14.36
565	NYSE	NVG	Wed, Dec 8, 2004	14.45	14.47	14.37	14.41
564	NYSE	NVG	Tue, Dec 7, 2004	14.42	14.50	14.36	14.42
563	NYSE	NVG	Mon, Dec 6, 2004	14.47	14.50	14.42	14.44
562	NYSE	NVG	Fri, Dec 3, 2004	14.50	14.50	14.42	14.47
561	NYSE	NVG	Thu, Dec 2, 2004	14.42	14.54	14.32	14.39
560	NYSE	NVG	Wed, Dec 1, 2004	14.56	14.56	14.43	14.55
559	NYSE	NVG	Tue, Nov 30, 2004	14.55	14.55	14.35	14.46
558	NYSE	NVG	Mon, Nov 29, 2004	14.59	14.64	14.50	14.50
557	NYSE	NVG	Fri, Nov 26, 2004	14.68	14.68	14.63	14.65
556	NYSE	NVG	Wed, Nov 24, 2004	14.61	14.63	14.54	14.62
555	NYSE	NVG	Tue, Nov 23, 2004	14.60	14.69	14.55	14.61
554	NYSE	NVG	Mon, Nov 22, 2004	14.53	14.66	14.53	14.62
553	NYSE	NVG	Fri, Nov 19, 2004	14.63	14.63	14.52	14.53
552	NYSE	NVG	Thu, Nov 18, 2004	14.74	14.74	14.62	14.63
551	NYSE	NVG	Wed, Nov 17, 2004	14.64	14.74	14.58	14.71
550	NYSE	NVG	Tue, Nov 16, 2004	14.85	14.85	14.66	14.74
549	NYSE	NVG	Mon, Nov 15, 2004	14.65	14.80	14.61	14.79
548	NYSE	NVG	Fri, Nov 12, 2004	14.57	14.68	14.48	14.68
547	NYSE	NVG	Thu, Nov 11, 2004	14.47	14.57	14.44	14.48
546	NYSE	NVG	Wed, Nov 10, 2004	14.38	14.48	14.37	14.45
545	NYSE	NVG	Tue, Nov 9, 2004	14.36	14.58	14.30	14.46
544	NYSE	NVG	Mon, Nov 8, 2004	14.57	14.57	14.22	14.34
543	NYSE	NVG	Fri, Nov 5, 2004	14.91	14.94	14.59	14.59
542	NYSE	NVG	Thu, Nov 4, 2004	14.99	15.04	14.98	15.04
541	NYSE	NVG	Wed, Nov 3, 2004	14.99	14.99	14.92	14.96
540	NYSE	NVG	Tue, Nov 2, 2004	14.94	15.00	14.88	14.96
539	NYSE	NVG	Mon, Nov 1, 2004	14.90	14.97	14.88	14.94
538	NYSE	NVG	Fri, Oct 29, 2004	15.08	15.08	14.88	14.89
537	NYSE	NVG	Thu, Oct 28, 2004	14.94	15.00	14.93	15.00
536	NYSE	NVG	Wed, Oct 27, 2004	14.95	15.00	14.89	14.99
535	NYSE	NVG	Tue, Oct 26, 2004	15.03	15.05	14.92	14.92
534	NYSE	NVG	Mon, Oct 25, 2004	15.00	15.01	14.90	14.93
533	NYSE	NVG	Fri, Oct 22, 2004	14.97	14.99	14.93	14.99
532	NYSE	NVG	Thu, Oct 21, 2004	14.91	14.95	14.90	14.93
531	NYSE	NVG	Wed, Oct 20, 2004	14.85	14.99	14.85	14.91
530	NYSE	NVG	Tue, Oct 19, 2004	14.93	14.99	14.91	14.94
529	NYSE	NVG	Mon, Oct 18, 2004	14.86	14.97	14.81	14.94
528	NYSE	NVG	Fri, Oct 15, 2004	14.94	14.97	14.86	14.86
527	NYSE	NVG	Thu, Oct 14, 2004	14.83	14.97	14.83	14.94
526	NYSE	NVG	Wed, Oct 13, 2004	14.97	15.01	14.87	14.88
525	NYSE	NVG	Tue, Oct 12, 2004	14.84	15.00	14.84	14.97
524	NYSE	NVG	Mon, Oct 11, 2004	14.85	14.95	14.85	14.89
523	NYSE	NVG	Fri, Oct 8, 2004	14.84	14.97	14.84	14.89
522	NYSE	NVG	Thu, Oct 7, 2004	14.88	14.88	14.76	14.84
521	NYSE	NVG	Wed, Oct 6, 2004	14.78	14.87	14.78	14.85
520	NYSE	NVG	Tue, Oct 5, 2004	14.74	14.80	14.70	14.80
519	NYSE	NVG	Mon, Oct 4, 2004	14.65	14.73	14.62	14.72
518	NYSE	NVG	Fri, Oct 1, 2004	14.87	14.87	14.65	14.70
517	NYSE	NVG	Thu, Sep 30, 2004	14.85	14.87	14.70	14.83
516	NYSE	NVG	Wed, Sep 29, 2004	14.86	14.88	14.80	14.85
515	NYSE	NVG	Tue, Sep 28, 2004	14.96	14.97	14.90	14.95
514	NYSE	NVG	Mon, Sep 27, 2004	14.89	14.96	14.82	14.92
513	NYSE	NVG	Fri, Sep 24, 2004	14.95	14.95	14.74	14.85
512	NYSE	NVG	Thu, Sep 23, 2004	14.85	14.90	14.83	14.89
511	NYSE	NVG	Wed, Sep 22, 2004	14.78	14.83	14.74	14.83
510	NYSE	NVG	Tue, Sep 21, 2004	14.74	14.84	14.67	14.83
509	NYSE	NVG	Mon, Sep 20, 2004	14.70	14.78	14.59	14.76
508	NYSE	NVG	Fri, Sep 17, 2004	14.61	14.65	14.59	14.65
507	NYSE	NVG	Thu, Sep 16, 2004	14.56	14.66	14.56	14.61
506	NYSE	NVG	Wed, Sep 15, 2004	14.66	14.66	14.56	14.56
505	NYSE	NVG	Tue, Sep 14, 2004	14.52	14.67	14.52	14.66
504	NYSE	NVG	Mon, Sep 13, 2004	14.72	14.72	14.56	14.56
503	NYSE	NVG	Fri, Sep 10, 2004	14.69	14.76	14.65	14.76
502	NYSE	NVG	Thu, Sep 9, 2004	14.56	14.66	14.51	14.64
501	NYSE	NVG	Wed, Sep 8, 2004	14.57	14.59	14.48	14.55
500	NYSE	NVG	Tue, Sep 7, 2004	14.50	14.63	14.50	14.57
499	NYSE	NVG	Fri, Sep 3, 2004	14.49	14.49	14.35	14.48
498	NYSE	NVG	Thu, Sep 2, 2004	14.70	14.70	14.45	14.49
497	NYSE	NVG	Wed, Sep 1, 2004	14.82	14.82	14.60	14.67
496	NYSE	NVG	Tue, Aug 31, 2004	14.65	14.71	14.58	14.71
495	NYSE	NVG	Mon, Aug 30, 2004	14.52	14.64	14.52	14.59
494	NYSE	NVG	Fri, Aug 27, 2004	14.58	14.60	14.51	14.60
493	NYSE	NVG	Thu, Aug 26, 2004	14.51	14.56	14.46	14.50
492	NYSE	NVG	Wed, Aug 25, 2004	14.41	14.51	14.40	14.51
491	NYSE	NVG	Tue, Aug 24, 2004	14.40	14.44	14.37	14.41
490	NYSE	NVG	Mon, Aug 23, 2004	14.35	14.41	14.31	14.41
489	NYSE	NVG	Fri, Aug 20, 2004	14.45	14.45	14.33	14.39
488	NYSE	NVG	Thu, Aug 19, 2004	14.38	14.45	14.37	14.44
487	NYSE	NVG	Wed, Aug 18, 2004	14.39	14.45	14.33	14.36
486	NYSE	NVG	Tue, Aug 17, 2004	14.26	14.39	14.25	14.39
485	NYSE	NVG	Mon, Aug 16, 2004	14.29	14.31	14.24	14.25
484	NYSE	NVG	Fri, Aug 13, 2004	14.24	14.29	14.16	14.27
483	NYSE	NVG	Thu, Aug 12, 2004	14.12	14.15	14.07	14.15
482	NYSE	NVG	Wed, Aug 11, 2004	14.03	14.13	14.02	14.13
481	NYSE	NVG	Tue, Aug 10, 2004	14.23	14.26	14.14	14.14
480	NYSE	NVG	Mon, Aug 9, 2004	14.23	14.23	14.16	14.18
479	NYSE	NVG	Fri, Aug 6, 2004	14.19	14.28	14.18	14.23
478	NYSE	NVG	Thu, Aug 5, 2004	14.15	14.20	14.11	14.16
477	NYSE	NVG	Wed, Aug 4, 2004	14.10	14.14	14.04	14.10
476	NYSE	NVG	Tue, Aug 3, 2004	14.02	14.09	14.00	14.09
475	NYSE	NVG	Mon, Aug 2, 2004	13.96	14.05	13.92	13.99
474	NYSE	NVG	Fri, Jul 30, 2004	13.88	13.98	13.85	13.91
473	NYSE	NVG	Thu, Jul 29, 2004	13.81	13.87	13.78	13.87
472	NYSE	NVG	Wed, Jul 28, 2004	13.85	13.86	13.76	13.81
471	NYSE	NVG	Tue, Jul 27, 2004	13.75	13.87	13.74	13.84
470	NYSE	NVG	Mon, Jul 26, 2004	13.82	13.83	13.71	13.77
469	NYSE	NVG	Fri, Jul 23, 2004	13.76	13.81	13.74	13.80
468	NYSE	NVG	Thu, Jul 22, 2004	13.74	13.81	13.72	13.79
467	NYSE	NVG	Wed, Jul 21, 2004	13.88	13.91	13.78	13.80
466	NYSE	NVG	Tue, Jul 20, 2004	14.05	14.05	13.84	13.88
465	NYSE	NVG	Mon, Jul 19, 2004	13.94	14.01	13.90	14.01
464	NYSE	NVG	Fri, Jul 16, 2004	13.88	13.97	13.88	13.96
463	NYSE	NVG	Thu, Jul 15, 2004	13.90	13.95	13.85	13.86
462	NYSE	NVG	Wed, Jul 14, 2004	13.84	13.91	13.84	13.89
461	NYSE	NVG	Tue, Jul 13, 2004	13.90	13.97	13.79	13.82
460	NYSE	NVG	Mon, Jul 12, 2004	13.99	14.03	13.92	13.98
459	NYSE	NVG	Fri, Jul 9, 2004	13.93	13.99	13.88	13.99
458	NYSE	NVG	Thu, Jul 8, 2004	13.97	13.98	13.88	13.98
457	NYSE	NVG	Wed, Jul 7, 2004	13.81	13.92	13.78	13.92
456	NYSE	NVG	Tue, Jul 6, 2004	13.69	13.79	13.69	13.79
455	NYSE	NVG	Fri, Jul 2, 2004	13.50	13.74	13.50	13.73
454	NYSE	NVG	Thu, Jul 1, 2004	13.54	13.55	13.49	13.50
453	NYSE	NVG	Wed, Jun 30, 2004	13.39	13.51	13.36	13.45
452	NYSE	NVG	Tue, Jun 29, 2004	13.40	13.40	13.30	13.36
451	NYSE	NVG	Mon, Jun 28, 2004	13.48	13.49	13.35	13.40
450	NYSE	NVG	Fri, Jun 25, 2004	13.49	13.50	13.41	13.45
449	NYSE	NVG	Thu, Jun 24, 2004	13.41	13.54	13.41	13.48
448	NYSE	NVG	Wed, Jun 23, 2004	13.40	13.45	13.34	13.40
447	NYSE	NVG	Tue, Jun 22, 2004	13.36	13.41	13.32	13.41
446	NYSE	NVG	Mon, Jun 21, 2004	13.31	13.39	13.31	13.37
445	NYSE	NVG	Fri, Jun 18, 2004	13.36	13.36	13.28	13.36
444	NYSE	NVG	Thu, Jun 17, 2004	13.37	13.39	13.27	13.36
443	NYSE	NVG	Wed, Jun 16, 2004	13.53	13.55	13.30	13.41
442	NYSE	NVG	Tue, Jun 15, 2004	13.45	13.56	13.37	13.56
441	NYSE	NVG	Mon, Jun 14, 2004	13.54	13.54	13.32	13.37
440	NYSE	NVG	Thu, Jun 10, 2004	13.65	13.68	13.55	13.60
439	NYSE	NVG	Wed, Jun 9, 2004	13.66	13.67	13.56	13.66
438	NYSE	NVG	Tue, Jun 8, 2004	13.74	13.75	13.61	13.66
437	NYSE	NVG	Mon, Jun 7, 2004	13.77	13.77	13.65	13.65
436	NYSE	NVG	Fri, Jun 4, 2004	13.70	13.76	13.68	13.75
435	NYSE	NVG	Thu, Jun 3, 2004	13.70	13.77	13.67	13.69
434	NYSE	NVG	Wed, Jun 2, 2004	13.79	13.79	13.72	13.75
433	NYSE	NVG	Tue, Jun 1, 2004	13.84	13.84	13.70	13.77
432	NYSE	NVG	Fri, May 28, 2004	13.82	13.83	13.72	13.73
431	NYSE	NVG	Thu, May 27, 2004	13.74	13.80	13.69	13.77
430	NYSE	NVG	Wed, May 26, 2004	13.47	13.72	13.45	13.67
429	NYSE	NVG	Tue, May 25, 2004	13.31	13.50	13.27	13.47
428	NYSE	NVG	Mon, May 24, 2004	13.22	13.28	13.18	13.27
427	NYSE	NVG	Fri, May 21, 2004	13.20	13.24	13.12	13.23
426	NYSE	NVG	Thu, May 20, 2004	13.21	13.23	13.09	13.15
425	NYSE	NVG	Wed, May 19, 2004	13.18	13.22	13.17	13.22
424	NYSE	NVG	Tue, May 18, 2004	13.19	13.23	13.17	13.17
423	NYSE	NVG	Mon, May 17, 2004	13.19	13.19	13.08	13.19
422	NYSE	NVG	Fri, May 14, 2004	13.02	13.19	13.02	13.19
421	NYSE	NVG	Thu, May 13, 2004	13.00	13.07	12.98	13.02
420	NYSE	NVG	Wed, May 12, 2004	13.25	13.29	13.05	13.24
419	NYSE	NVG	Tue, May 11, 2004	13.12	13.26	13.07	13.25
418	NYSE	NVG	Mon, May 10, 2004	13.35	13.40	13.06	13.06
417	NYSE	NVG	Fri, May 7, 2004	13.56	13.56	13.37	13.42
416	NYSE	NVG	Thu, May 6, 2004	13.87	13.87	13.61	13.62
415	NYSE	NVG	Wed, May 5, 2004	13.89	14.75	13.80	13.85
414	NYSE	NVG	Tue, May 4, 2004	13.85	13.87	13.80	13.84
413	NYSE	NVG	Mon, May 3, 2004	13.80	13.85	13.74	13.84
412	NYSE	NVG	Fri, Apr 30, 2004	13.70	13.76	13.63	13.72
411	NYSE	NVG	Thu, Apr 29, 2004	13.68	13.72	13.60	13.65
410	NYSE	NVG	Wed, Apr 28, 2004	13.65	13.70	13.60	13.70
409	NYSE	NVG	Tue, Apr 27, 2004	13.80	13.80	13.61	13.65
408	NYSE	NVG	Mon, Apr 26, 2004	13.83	13.95	13.71	13.71
407	NYSE	NVG	Fri, Apr 23, 2004	14.17	14.17	13.90	13.93
406	NYSE	NVG	Thu, Apr 22, 2004	14.08	14.17	13.99	14.17
405	NYSE	NVG	Wed, Apr 21, 2004	14.12	14.12	13.90	14.02
404	NYSE	NVG	Tue, Apr 20, 2004	14.20	14.27	14.10	14.10
403	NYSE	NVG	Mon, Apr 19, 2004	14.25	14.30	14.21	14.29
402	NYSE	NVG	Fri, Apr 16, 2004	14.10	14.28	14.10	14.25
401	NYSE	NVG	Thu, Apr 15, 2004	14.17	14.19	14.07	14.15
400	NYSE	NVG	Wed, Apr 14, 2004	14.25	14.30	14.07	14.17
399	NYSE	NVG	Tue, Apr 13, 2004	14.42	14.45	14.19	14.25
398	NYSE	NVG	Mon, Apr 12, 2004	14.75	14.77	14.55	14.57
397	NYSE	NVG	Thu, Apr 8, 2004	14.75	14.76	14.67	14.70
396	NYSE	NVG	Wed, Apr 7, 2004	14.61	14.79	14.61	14.72
395	NYSE	NVG	Tue, Apr 6, 2004	14.72	14.75	14.55	14.71
394	NYSE	NVG	Mon, Apr 5, 2004	15.24	15.24	14.70	14.82
393	NYSE	NVG	Fri, Apr 2, 2004	15.49	15.51	15.25	15.27
392	NYSE	NVG	Thu, Apr 1, 2004	15.53	15.59	15.51	15.59
391	NYSE	NVG	Wed, Mar 31, 2004	15.54	15.55	15.48	15.52
390	NYSE	NVG	Tue, Mar 30, 2004	15.50	15.57	15.49	15.50
389	NYSE	NVG	Mon, Mar 29, 2004	15.60	15.61	15.50	15.58
388	NYSE	NVG	Fri, Mar 26, 2004	15.65	15.65	15.57	15.61
387	NYSE	NVG	Thu, Mar 25, 2004	15.58	15.68	15.58	15.65
386	NYSE	NVG	Wed, Mar 24, 2004	15.70	15.72	15.63	15.65
385	NYSE	NVG	Tue, Mar 23, 2004	15.67	15.72	15.62	15.65
384	NYSE	NVG	Mon, Mar 22, 2004	15.68	15.69	15.61	15.65
383	NYSE	NVG	Fri, Mar 19, 2004	15.67	15.67	15.60	15.63
382	NYSE	NVG	Thu, Mar 18, 2004	15.64	15.69	15.60	15.67
381	NYSE	NVG	Wed, Mar 17, 2004	15.54	15.64	15.54	15.64
380	NYSE	NVG	Tue, Mar 16, 2004	15.65	15.65	15.56	15.56
379	NYSE	NVG	Mon, Mar 15, 2004	15.61	15.67	15.60	15.61
378	NYSE	NVG	Fri, Mar 12, 2004	15.64	15.68	15.60	15.60
377	NYSE	NVG	Thu, Mar 11, 2004	15.75	15.75	15.58	15.60
376	NYSE	NVG	Wed, Mar 10, 2004	15.80	15.83	15.75	15.83
375	NYSE	NVG	Tue, Mar 9, 2004	15.79	15.85	15.75	15.77
374	NYSE	NVG	Mon, Mar 8, 2004	15.73	15.80	15.68	15.80
373	NYSE	NVG	Fri, Mar 5, 2004	15.72	15.80	15.65	15.70
372	NYSE	NVG	Thu, Mar 4, 2004	15.65	15.70	15.58	15.70
371	NYSE	NVG	Wed, Mar 3, 2004	15.62	15.70	15.57	15.60
370	NYSE	NVG	Tue, Mar 2, 2004	15.67	15.70	15.60	15.62
369	NYSE	NVG	Mon, Mar 1, 2004	15.69	15.69	15.61	15.65
368	NYSE	NVG	Fri, Feb 27, 2004	15.60	15.64	15.55	15.64
367	NYSE	NVG	Thu, Feb 26, 2004	15.58	15.59	15.50	15.52
366	NYSE	NVG	Wed, Feb 25, 2004	15.60	15.63	15.50	15.53
365	NYSE	NVG	Tue, Feb 24, 2004	15.44	15.60	15.42	15.52
364	NYSE	NVG	Mon, Feb 23, 2004	15.35	15.43	15.33	15.40
363	NYSE	NVG	Fri, Feb 20, 2004	15.45	15.49	15.31	15.39
362	NYSE	NVG	Thu, Feb 19, 2004	15.49	15.50	15.42	15.47
361	NYSE	NVG	Wed, Feb 18, 2004	15.38	15.47	15.35	15.47
360	NYSE	NVG	Tue, Feb 17, 2004	15.41	15.41	15.33	15.38
359	NYSE	NVG	Fri, Feb 13, 2004	15.36	15.40	15.30	15.40
358	NYSE	NVG	Thu, Feb 12, 2004	15.46	15.55	15.30	15.36
357	NYSE	NVG	Wed, Feb 11, 2004	15.45	15.47	15.38	15.46
356	NYSE	NVG	Tue, Feb 10, 2004	15.55	15.62	15.47	15.47
355	NYSE	NVG	Mon, Feb 9, 2004	15.45	15.59	15.45	15.51
354	NYSE	NVG	Fri, Feb 6, 2004	15.55	15.58	15.44	15.49
353	NYSE	NVG	Thu, Feb 5, 2004	15.57	15.63	15.51	15.51
352	NYSE	NVG	Wed, Feb 4, 2004	15.59	15.62	15.52	15.62
351	NYSE	NVG	Tue, Feb 3, 2004	15.50	15.61	15.50	15.59
350	NYSE	NVG	Mon, Feb 2, 2004	15.45	15.50	15.35	15.50
349	NYSE	NVG	Fri, Jan 30, 2004	15.36	15.48	15.28	15.40
348	NYSE	NVG	Thu, Jan 29, 2004	15.31	15.40	15.30	15.35
347	NYSE	NVG	Wed, Jan 28, 2004	15.32	15.36	15.30	15.32
346	NYSE	NVG	Tue, Jan 27, 2004	15.40	15.45	15.25	15.32
345	NYSE	NVG	Mon, Jan 26, 2004	15.45	15.52	15.34	15.35
344	NYSE	NVG	Fri, Jan 23, 2004	15.45	15.50	15.44	15.47
343	NYSE	NVG	Thu, Jan 22, 2004	15.44	15.50	15.40	15.45
342	NYSE	NVG	Wed, Jan 21, 2004	15.32	15.44	15.30	15.42
341	NYSE	NVG	Tue, Jan 20, 2004	15.30	15.42	15.29	15.30
340	NYSE	NVG	Fri, Jan 16, 2004	15.35	15.38	15.32	15.38
339	NYSE	NVG	Thu, Jan 15, 2004	15.45	15.45	15.27	15.37
338	NYSE	NVG	Wed, Jan 14, 2004	15.55	15.55	15.38	15.39
337	NYSE	NVG	Tue, Jan 13, 2004	15.52	15.64	15.45	15.50
336	NYSE	NVG	Mon, Jan 12, 2004	15.41	15.68	15.41	15.65
335	NYSE	NVG	Fri, Jan 9, 2004	15.30	15.41	15.30	15.41
334	NYSE	NVG	Thu, Jan 8, 2004	15.31	15.35	15.20	15.31
333	NYSE	NVG	Wed, Jan 7, 2004	15.29	15.30	15.23	15.25
332	NYSE	NVG	Tue, Jan 6, 2004	15.20	15.27	15.11	15.27
331	NYSE	NVG	Mon, Jan 5, 2004	15.22	15.31	15.10	15.20
330	NYSE	NVG	Fri, Jan 2, 2004	15.19	15.26	15.19	15.20
329	NYSE	NVG	Wed, Dec 31, 2003	15.20	15.25	15.17	15.19
328	NYSE	NVG	Tue, Dec 30, 2003	15.20	15.20	15.14	15.20
327	NYSE	NVG	Mon, Dec 29, 2003	15.15	15.18	15.12	15.12
326	NYSE	NVG	Fri, Dec 26, 2003	15.07	15.10	15.02	15.10
325	NYSE	NVG	Wed, Dec 24, 2003	15.19	15.25	15.00	15.05
324	NYSE	NVG	Tue, Dec 23, 2003	15.12	15.15	15.06	15.09
323	NYSE	NVG	Mon, Dec 22, 2003	15.01	15.12	14.95	15.12
322	NYSE	NVG	Fri, Dec 19, 2003	15.11	15.15	15.02	15.02
321	NYSE	NVG	Thu, Dec 18, 2003	15.20	15.20	15.01	15.11
320	NYSE	NVG	Wed, Dec 17, 2003	15.15	15.25	15.00	15.15
319	NYSE	NVG	Tue, Dec 16, 2003	15.04	15.20	15.04	15.15
318	NYSE	NVG	Mon, Dec 15, 2003	15.04	15.08	14.98	15.06
317	NYSE	NVG	Fri, Dec 12, 2003	15.06	15.09	14.94	15.05
316	NYSE	NVG	Thu, Dec 11, 2003	14.91	15.07	14.76	15.04
315	NYSE	NVG	Wed, Dec 10, 2003	14.99	15.10	14.96	15.05
314	NYSE	NVG	Tue, Dec 9, 2003	14.93	15.06	14.90	15.00
313	NYSE	NVG	Mon, Dec 8, 2003	14.99	15.03	14.95	14.95
312	NYSE	NVG	Fri, Dec 5, 2003	14.89	14.98	14.89	14.98
311	NYSE	NVG	Thu, Dec 4, 2003	14.97	14.97	14.88	14.88
310	NYSE	NVG	Wed, Dec 3, 2003	14.94	14.96	14.88	14.96
309	NYSE	NVG	Tue, Dec 2, 2003	15.04	15.05	14.90	14.90
308	NYSE	NVG	Mon, Dec 1, 2003	15.04	15.08	14.95	14.95
307	NYSE	NVG	Fri, Nov 28, 2003	14.93	14.98	14.90	14.98
306	NYSE	NVG	Wed, Nov 26, 2003	14.98	15.01	14.92	14.92
305	NYSE	NVG	Tue, Nov 25, 2003	14.91	14.96	14.85	14.96
304	NYSE	NVG	Mon, Nov 24, 2003	14.89	14.93	14.82	14.87
303	NYSE	NVG	Fri, Nov 21, 2003	14.80	14.88	14.78	14.82
302	NYSE	NVG	Thu, Nov 20, 2003	14.70	14.80	14.68	14.74
301	NYSE	NVG	Wed, Nov 19, 2003	14.60	14.75	14.60	14.70
300	NYSE	NVG	Tue, Nov 18, 2003	14.74	14.85	14.65	14.65
299	NYSE	NVG	Mon, Nov 17, 2003	14.89	14.94	14.75	14.75
298	NYSE	NVG	Fri, Nov 14, 2003	14.86	14.88	14.77	14.85
297	NYSE	NVG	Thu, Nov 13, 2003	14.74	14.85	14.72	14.85
296	NYSE	NVG	Wed, Nov 12, 2003	14.75	14.84	14.75	14.76
295	NYSE	NVG	Tue, Nov 11, 2003	14.80	14.86	14.76	14.76
294	NYSE	NVG	Mon, Nov 10, 2003	14.90	14.90	14.75	14.75
293	NYSE	NVG	Fri, Nov 7, 2003	14.79	14.88	14.70	14.88
292	NYSE	NVG	Thu, Nov 6, 2003	14.94	14.96	14.75	14.75
291	NYSE	NVG	Wed, Nov 5, 2003	14.85	14.90	14.84	14.84
290	NYSE	NVG	Tue, Nov 4, 2003	14.92	14.98	14.86	14.90
289	NYSE	NVG	Mon, Nov 3, 2003	14.90	14.92	14.86	14.90
288	NYSE	NVG	Fri, Oct 31, 2003	14.82	14.84	14.77	14.81
287	NYSE	NVG	Thu, Oct 30, 2003	14.76	14.82	14.75	14.82
286	NYSE	NVG	Wed, Oct 29, 2003	14.80	14.82	14.75	14.79
285	NYSE	NVG	Tue, Oct 28, 2003	14.75	14.80	14.67	14.78
284	NYSE	NVG	Mon, Oct 27, 2003	14.76	14.81	14.72	14.78
283	NYSE	NVG	Fri, Oct 24, 2003	14.72	14.81	14.70	14.81
282	NYSE	NVG	Thu, Oct 23, 2003	14.70	14.72	14.66	14.71
281	NYSE	NVG	Wed, Oct 22, 2003	14.64	14.65	14.60	14.65
280	NYSE	NVG	Tue, Oct 21, 2003	14.62	14.68	14.55	14.60
279	NYSE	NVG	Mon, Oct 20, 2003	14.57	14.70	14.55	14.60
278	NYSE	NVG	Fri, Oct 17, 2003	14.64	14.67	14.56	14.67
277	NYSE	NVG	Thu, Oct 16, 2003	14.72	14.72	14.60	14.60
276	NYSE	NVG	Wed, Oct 15, 2003	14.75	14.75	14.67	14.72
275	NYSE	NVG	Tue, Oct 14, 2003	14.80	14.84	14.68	14.70
274	NYSE	NVG	Mon, Oct 13, 2003	14.89	14.90	14.79	14.79
273	NYSE	NVG	Fri, Oct 10, 2003	14.75	14.89	14.70	14.89
272	NYSE	NVG	Thu, Oct 9, 2003	14.94	14.94	14.80	14.80
271	NYSE	NVG	Wed, Oct 8, 2003	14.85	14.97	14.78	14.91
270	NYSE	NVG	Tue, Oct 7, 2003	14.91	14.91	14.75	14.82
269	NYSE	NVG	Mon, Oct 6, 2003	14.82	14.91	14.81	14.91
268	NYSE	NVG	Fri, Oct 3, 2003	14.92	14.94	14.80	14.86
267	NYSE	NVG	Thu, Oct 2, 2003	14.88	14.94	14.78	14.92
266	NYSE	NVG	Wed, Oct 1, 2003	14.80	14.85	14.75	14.85
265	NYSE	NVG	Tue, Sep 30, 2003	14.70	14.85	14.70	14.71
264	NYSE	NVG	Mon, Sep 29, 2003	14.50	14.64	14.50	14.64
263	NYSE	NVG	Fri, Sep 26, 2003	14.43	14.56	14.40	14.56
262	NYSE	NVG	Thu, Sep 25, 2003	14.49	14.55	14.35	14.40
261	NYSE	NVG	Wed, Sep 24, 2003	14.52	14.55	14.46	14.55
260	NYSE	NVG	Tue, Sep 23, 2003	14.48	14.58	14.44	14.58
259	NYSE	NVG	Mon, Sep 22, 2003	14.50	14.50	14.40	14.48
258	NYSE	NVG	Fri, Sep 19, 2003	14.60	14.60	14.46	14.48
257	NYSE	NVG	Thu, Sep 18, 2003	14.56	14.60	14.52	14.56
256	NYSE	NVG	Wed, Sep 17, 2003	14.55	14.64	14.53	14.54
255	NYSE	NVG	Tue, Sep 16, 2003	14.58	14.61	14.54	14.55
254	NYSE	NVG	Mon, Sep 15, 2003	14.55	14.61	14.50	14.55
253	NYSE	NVG	Fri, Sep 12, 2003	14.57	14.59	14.51	14.55
252	NYSE	NVG	Thu, Sep 11, 2003	14.67	14.67	14.39	14.52
251	NYSE	NVG	Wed, Sep 10, 2003	14.69	14.75	14.65	14.75
250	NYSE	NVG	Tue, Sep 9, 2003	14.63	14.74	14.60	14.74
249	NYSE	NVG	Mon, Sep 8, 2003	14.59	14.62	14.52	14.60
248	NYSE	NVG	Fri, Sep 5, 2003	14.51	14.59	14.51	14.59
247	NYSE	NVG	Thu, Sep 4, 2003	14.40	14.53	14.40	14.53
246	NYSE	NVG	Wed, Sep 3, 2003	14.48	14.54	14.40	14.48
245	NYSE	NVG	Tue, Sep 2, 2003	14.44	14.53	14.35	14.51
244	NYSE	NVG	Fri, Aug 29, 2003	14.48	14.48	14.37	14.44
243	NYSE	NVG	Thu, Aug 28, 2003	14.30	14.44	14.30	14.38
242	NYSE	NVG	Wed, Aug 27, 2003	14.28	14.30	14.11	14.24
241	NYSE	NVG	Tue, Aug 26, 2003	14.30	14.37	14.17	14.28
240	NYSE	NVG	Mon, Aug 25, 2003	14.36	14.38	14.19	14.30
239	NYSE	NVG	Fri, Aug 22, 2003	14.50	14.50	14.25	14.26
238	NYSE	NVG	Thu, Aug 21, 2003	14.39	14.39	14.25	14.33
237	NYSE	NVG	Wed, Aug 20, 2003	14.31	14.43	14.31	14.37
236	NYSE	NVG	Tue, Aug 19, 2003	14.32	14.39	14.30	14.31
235	NYSE	NVG	Mon, Aug 18, 2003	14.30	14.36	14.26	14.32
234	NYSE	NVG	Fri, Aug 15, 2003	14.31	14.31	14.31	14.31
233	NYSE	NVG	Thu, Aug 14, 2003	14.39	14.39	14.26	14.31
232	NYSE	NVG	Wed, Aug 13, 2003	14.49	14.49	14.34	14.34
231	NYSE	NVG	Tue, Aug 12, 2003	14.50	14.54	14.45	14.53
230	NYSE	NVG	Mon, Aug 11, 2003	14.40	14.50	14.40	14.50
229	NYSE	NVG	Fri, Aug 8, 2003	14.36	14.49	14.36	14.49
228	NYSE	NVG	Thu, Aug 7, 2003	14.40	14.48	14.35	14.36
227	NYSE	NVG	Wed, Aug 6, 2003	14.19	14.47	14.17	14.47
226	NYSE	NVG	Tue, Aug 5, 2003	14.02	14.19	14.00	14.19
225	NYSE	NVG	Mon, Aug 4, 2003	14.18	14.18	14.01	14.13
224	NYSE	NVG	Fri, Aug 1, 2003	14.14	14.18	14.06	14.10
223	NYSE	NVG	Thu, Jul 31, 2003	14.25	14.28	14.11	14.14
222	NYSE	NVG	Wed, Jul 30, 2003	14.12	14.35	14.12	14.25
221	NYSE	NVG	Tue, Jul 29, 2003	14.30	14.34	14.20	14.20
220	NYSE	NVG	Mon, Jul 28, 2003	14.80	14.80	14.00	14.29
219	NYSE	NVG	Fri, Jul 25, 2003	14.95	14.95	14.75	14.76
218	NYSE	NVG	Thu, Jul 24, 2003	15.02	15.08	14.90	14.90
217	NYSE	NVG	Wed, Jul 23, 2003	15.10	15.11	14.97	14.98
216	NYSE	NVG	Tue, Jul 22, 2003	15.01	15.07	14.91	15.00
215	NYSE	NVG	Mon, Jul 21, 2003	15.10	15.14	14.85	14.98
214	NYSE	NVG	Fri, Jul 18, 2003	15.15	15.30	15.07	15.19
213	NYSE	NVG	Thu, Jul 17, 2003	15.20	15.30	15.10	15.23
212	NYSE	NVG	Wed, Jul 16, 2003	15.38	15.38	15.06	15.35
211	NYSE	NVG	Tue, Jul 15, 2003	15.61	15.66	15.40	15.40
210	NYSE	NVG	Mon, Jul 14, 2003	15.61	15.67	15.61	15.66
209	NYSE	NVG	Fri, Jul 11, 2003	15.57	15.70	15.57	15.67
208	NYSE	NVG	Thu, Jul 10, 2003	15.72	15.72	15.62	15.71
207	NYSE	NVG	Wed, Jul 9, 2003	15.74	15.74	15.61	15.72
206	NYSE	NVG	Tue, Jul 8, 2003	15.63	15.73	15.63	15.73
205	NYSE	NVG	Mon, Jul 7, 2003	15.75	15.77	15.64	15.65
204	NYSE	NVG	Thu, Jul 3, 2003	15.68	15.79	15.66	15.73
203	NYSE	NVG	Wed, Jul 2, 2003	15.60	15.71	15.54	15.71
202	NYSE	NVG	Tue, Jul 1, 2003	15.46	15.58	15.40	15.53
201	NYSE	NVG	Mon, Jun 30, 2003	15.40	15.46	15.33	15.40
200	NYSE	NVG	Fri, Jun 27, 2003	15.38	15.40	15.36	15.40
199	NYSE	NVG	Thu, Jun 26, 2003	15.33	15.41	15.30	15.40
198	NYSE	NVG	Wed, Jun 25, 2003	15.31	15.39	15.25	15.34
197	NYSE	NVG	Tue, Jun 24, 2003	15.40	15.46	15.28	15.32
196	NYSE	NVG	Mon, Jun 23, 2003	15.38	15.46	15.38	15.42
195	NYSE	NVG	Fri, Jun 20, 2003	15.71	15.71	15.30	15.41
194	NYSE	NVG	Thu, Jun 19, 2003	15.85	15.89	15.71	15.74
193	NYSE	NVG	Wed, Jun 18, 2003	15.91	15.97	15.84	15.89
192	NYSE	NVG	Tue, Jun 17, 2003	15.97	16.00	15.90	16.00
191	NYSE	NVG	Mon, Jun 16, 2003	15.95	15.96	15.90	15.91
190	NYSE	NVG	Fri, Jun 13, 2003	15.94	16.00	15.90	15.95
189	NYSE	NVG	Thu, Jun 12, 2003	15.72	15.90	15.68	15.90
188	NYSE	NVG	Wed, Jun 11, 2003	15.88	15.88	15.66	15.73
187	NYSE	NVG	Tue, Jun 10, 2003	15.87	15.97	15.83	15.85
186	NYSE	NVG	Mon, Jun 9, 2003	15.80	15.92	15.80	15.92
185	NYSE	NVG	Fri, Jun 6, 2003	15.79	15.88	15.74	15.88
184	NYSE	NVG	Thu, Jun 5, 2003	15.75	15.80	15.74	15.74
183	NYSE	NVG	Wed, Jun 4, 2003	15.79	15.84	15.71	15.72
182	NYSE	NVG	Tue, Jun 3, 2003	15.72	15.79	15.63	15.79
181	NYSE	NVG	Mon, Jun 2, 2003	15.64	15.72	15.55	15.72
180	NYSE	NVG	Fri, May 30, 2003	15.57	15.62	15.53	15.62
179	NYSE	NVG	Thu, May 29, 2003	15.55	15.55	15.40	15.55
178	NYSE	NVG	Wed, May 28, 2003	15.50	15.60	15.50	15.57
177	NYSE	NVG	Tue, May 27, 2003	15.38	15.56	15.38	15.54
176	NYSE	NVG	Fri, May 23, 2003	15.45	15.60	15.38	15.48
175	NYSE	NVG	Thu, May 22, 2003	15.48	15.62	15.40	15.47
174	NYSE	NVG	Wed, May 21, 2003	15.41	15.49	15.40	15.48
173	NYSE	NVG	Tue, May 20, 2003	15.33	15.44	15.26	15.44
172	NYSE	NVG	Mon, May 19, 2003	15.32	15.33	15.25	15.33
171	NYSE	NVG	Fri, May 16, 2003	15.23	15.30	15.20	15.22
170	NYSE	NVG	Thu, May 15, 2003	15.30	15.30	15.22	15.23
169	NYSE	NVG	Wed, May 14, 2003	15.31	15.33	15.26	15.28
168	NYSE	NVG	Tue, May 13, 2003	15.35	15.38	15.30	15.31
167	NYSE	NVG	Mon, May 12, 2003	15.34	15.42	15.31	15.41
166	NYSE	NVG	Fri, May 9, 2003	15.30	15.37	15.30	15.35
165	NYSE	NVG	Thu, May 8, 2003	15.35	15.37	15.30	15.31
164	NYSE	NVG	Wed, May 7, 2003	15.28	15.38	15.28	15.35
163	NYSE	NVG	Tue, May 6, 2003	15.26	15.37	15.24	15.36
162	NYSE	NVG	Mon, May 5, 2003	15.16	15.29	15.14	15.29
161	NYSE	NVG	Fri, May 2, 2003	15.17	15.20	15.12	15.20
160	NYSE	NVG	Thu, May 1, 2003	15.13	15.18	15.09	15.11
159	NYSE	NVG	Wed, Apr 30, 2003	15.13	15.13	15.08	15.08
158	NYSE	NVG	Tue, Apr 29, 2003	15.08	15.09	15.03	15.07
157	NYSE	NVG	Mon, Apr 28, 2003	15.08	15.09	15.03	15.09
156	NYSE	NVG	Fri, Apr 25, 2003	15.12	15.13	15.02	15.02
155	NYSE	NVG	Thu, Apr 24, 2003	15.10	15.13	15.04	15.05
154	NYSE	NVG	Wed, Apr 23, 2003	15.05	15.12	15.02	15.12
153	NYSE	NVG	Tue, Apr 22, 2003	15.03	15.10	15.03	15.03
152	NYSE	NVG	Mon, Apr 21, 2003	15.04	15.06	14.99	15.06
151	NYSE	NVG	Thu, Apr 17, 2003	15.00	15.04	14.98	15.04
150	NYSE	NVG	Wed, Apr 16, 2003	14.97	15.04	14.96	15.04
149	NYSE	NVG	Tue, Apr 15, 2003	15.01	15.01	14.96	15.01
148	NYSE	NVG	Mon, Apr 14, 2003	15.05	15.05	14.96	14.96
147	NYSE	NVG	Fri, Apr 11, 2003	14.97	15.05	14.90	15.05
146	NYSE	NVG	Thu, Apr 10, 2003	14.98	15.04	14.94	15.02
145	NYSE	NVG	Wed, Apr 9, 2003	14.95	14.98	14.91	14.98
144	NYSE	NVG	Tue, Apr 8, 2003	14.96	14.97	14.90	14.91
143	NYSE	NVG	Mon, Apr 7, 2003	14.95	14.95	14.89	14.93
142	NYSE	NVG	Fri, Apr 4, 2003	14.91	14.95	14.91	14.95
141	NYSE	NVG	Thu, Apr 3, 2003	14.98	14.98	14.90	14.91
140	NYSE	NVG	Wed, Apr 2, 2003	15.05	15.05	14.89	14.91
139	NYSE	NVG	Tue, Apr 1, 2003	15.08	15.08	14.99	15.05
138	NYSE	NVG	Mon, Mar 31, 2003	14.99	15.08	14.97	15.08
137	NYSE	NVG	Fri, Mar 28, 2003	14.90	14.96	14.89	14.93
136	NYSE	NVG	Thu, Mar 27, 2003	14.82	14.94	14.82	14.86
135	NYSE	NVG	Wed, Mar 26, 2003	14.94	14.94	14.84	14.85
134	NYSE	NVG	Tue, Mar 25, 2003	14.91	14.91	14.83	14.83
133	NYSE	NVG	Mon, Mar 24, 2003	14.84	14.90	14.77	14.90
132	NYSE	NVG	Fri, Mar 21, 2003	14.76	14.84	14.76	14.84
131	NYSE	NVG	Thu, Mar 20, 2003	14.84	14.88	14.76	14.76
130	NYSE	NVG	Wed, Mar 19, 2003	14.93	14.94	14.83	14.83
129	NYSE	NVG	Tue, Mar 18, 2003	14.90	14.91	14.84	14.90
128	NYSE	NVG	Mon, Mar 17, 2003	15.00	15.00	14.87	14.91
127	NYSE	NVG	Fri, Mar 14, 2003	14.99	15.02	14.91	14.95
126	NYSE	NVG	Thu, Mar 13, 2003	15.04	15.04	14.97	14.99
125	NYSE	NVG	Wed, Mar 12, 2003	15.08	15.08	14.96	15.00
124	NYSE	NVG	Tue, Mar 11, 2003	15.06	15.19	15.05	15.19
123	NYSE	NVG	Mon, Mar 10, 2003	14.92	15.05	14.91	15.05
122	NYSE	NVG	Fri, Mar 7, 2003	14.98	14.99	14.92	14.94
121	NYSE	NVG	Thu, Mar 6, 2003	14.99	14.99	14.91	14.96
120	NYSE	NVG	Wed, Mar 5, 2003	15.05	15.05	14.95	14.95
119	NYSE	NVG	Tue, Mar 4, 2003	15.04	15.05	14.99	15.04
118	NYSE	NVG	Mon, Mar 3, 2003	15.04	15.04	14.95	15.04
117	NYSE	NVG	Fri, Feb 28, 2003	15.00	15.04	14.95	15.04
116	NYSE	NVG	Thu, Feb 27, 2003	14.95	15.00	14.87	15.00
115	NYSE	NVG	Wed, Feb 26, 2003	15.04	15.04	14.95	14.95
114	NYSE	NVG	Tue, Feb 25, 2003	15.04	15.05	14.98	15.04
113	NYSE	NVG	Mon, Feb 24, 2003	15.03	15.09	14.99	15.02
112	NYSE	NVG	Fri, Feb 21, 2003	14.97	15.02	14.95	15.00
111	NYSE	NVG	Thu, Feb 20, 2003	14.96	14.96	14.92	14.96
110	NYSE	NVG	Wed, Feb 19, 2003	14.93	14.97	14.91	14.96
109	NYSE	NVG	Tue, Feb 18, 2003	14.96	14.98	14.91	14.97
108	NYSE	NVG	Fri, Feb 14, 2003	14.88	14.99	14.88	14.91
107	NYSE	NVG	Thu, Feb 13, 2003	14.95	15.01	14.92	14.98
106	NYSE	NVG	Wed, Feb 12, 2003	15.07	15.07	14.88	14.98
105	NYSE	NVG	Tue, Feb 11, 2003	15.02	15.13	14.99	15.05
104	NYSE	NVG	Mon, Feb 10, 2003	14.99	15.04	14.99	15.00
103	NYSE	NVG	Fri, Feb 7, 2003	15.08	15.08	15.01	15.01
102	NYSE	NVG	Thu, Feb 6, 2003	14.96	15.09	14.96	15.07
101	NYSE	NVG	Wed, Feb 5, 2003	14.94	15.09	14.94	15.03
100	NYSE	NVG	Tue, Feb 4, 2003	14.95	14.99	14.94	14.99
99	NYSE	NVG	Mon, Feb 3, 2003	14.99	14.99	14.95	14.99
98	NYSE	NVG	Fri, Jan 31, 2003	14.97	15.00	14.92	14.92
97	NYSE	NVG	Thu, Jan 30, 2003	14.96	14.97	14.90	14.91
96	NYSE	NVG	Wed, Jan 29, 2003	14.99	15.00	14.87	14.96
95	NYSE	NVG	Tue, Jan 28, 2003	14.76	14.97	14.76	14.97
94	NYSE	NVG	Mon, Jan 27, 2003	14.85	14.85	14.76	14.79
93	NYSE	NVG	Fri, Jan 24, 2003	14.82	14.84	14.77	14.84
92	NYSE	NVG	Thu, Jan 23, 2003	14.83	14.89	14.70	14.81
91	NYSE	NVG	Wed, Jan 22, 2003	14.82	14.82	14.78	14.82
90	NYSE	NVG	Tue, Jan 21, 2003	14.83	14.85	14.77	14.81
89	NYSE	NVG	Fri, Jan 17, 2003	14.82	14.82	14.76	14.80
88	NYSE	NVG	Thu, Jan 16, 2003	14.75	14.83	14.74	14.82
87	NYSE	NVG	Wed, Jan 15, 2003	14.83	14.85	14.75	14.75
86	NYSE	NVG	Tue, Jan 14, 2003	14.50	14.64	14.35	14.60
85	NYSE	NVG	Mon, Jan 13, 2003	14.52	14.52	14.37	14.49
84	NYSE	NVG	Fri, Jan 10, 2003	14.50	14.62	14.35	14.45
83	NYSE	NVG	Thu, Jan 9, 2003	14.56	14.63	14.52	14.57
82	NYSE	NVG	Wed, Jan 8, 2003	14.81	14.81	14.57	14.59
81	NYSE	NVG	Tue, Jan 7, 2003	14.98	15.04	14.79	14.83
80	NYSE	NVG	Mon, Jan 6, 2003	15.04	15.08	14.99	15.00
79	NYSE	NVG	Fri, Jan 3, 2003	14.96	15.04	14.96	15.01
78	NYSE	NVG	Thu, Jan 2, 2003	14.95	14.99	14.92	14.93
77	NYSE	NVG	Tue, Dec 31, 2002	14.80	14.94	14.76	14.94
76	NYSE	NVG	Mon, Dec 30, 2002	14.54	14.79	14.45	14.79
75	NYSE	NVG	Fri, Dec 27, 2002	14.40	14.50	14.40	14.50
74	NYSE	NVG	Thu, Dec 26, 2002	14.40	14.40	14.30	14.31
73	NYSE	NVG	Tue, Dec 24, 2002	14.35	14.42	14.25	14.30
72	NYSE	NVG	Mon, Dec 23, 2002	14.20	14.29	14.11	14.29
71	NYSE	NVG	Fri, Dec 20, 2002	14.30	14.30	14.15	14.19
70	NYSE	NVG	Thu, Dec 19, 2002	14.37	14.38	14.25	14.33
69	NYSE	NVG	Wed, Dec 18, 2002	14.41	14.41	14.37	14.41
68	NYSE	NVG	Tue, Dec 17, 2002	14.43	14.44	14.37	14.41
67	NYSE	NVG	Mon, Dec 16, 2002	14.46	14.46	14.31	14.43
66	NYSE	NVG	Fri, Dec 13, 2002	14.63	14.63	14.35	14.46
65	NYSE	NVG	Thu, Dec 12, 2002	14.68	14.69	14.45	14.60
64	NYSE	NVG	Wed, Dec 11, 2002	14.60	14.70	14.53	14.69
63	NYSE	NVG	Tue, Dec 10, 2002	14.67	14.74	14.61	14.65
62	NYSE	NVG	Mon, Dec 9, 2002	14.74	14.74	14.67	14.67
61	NYSE	NVG	Fri, Dec 6, 2002	14.79	14.80	14.72	14.72
60	NYSE	NVG	Thu, Dec 5, 2002	14.74	14.77	14.68	14.75
59	NYSE	NVG	Wed, Dec 4, 2002	14.75	14.79	14.66	14.70
58	NYSE	NVG	Tue, Dec 3, 2002	14.65	14.80	14.60	14.80
57	NYSE	NVG	Mon, Dec 2, 2002	14.59	14.60	14.46	14.57
56	NYSE	NVG	Fri, Nov 29, 2002	14.55	14.59	14.55	14.59
55	NYSE	NVG	Wed, Nov 27, 2002	14.41	14.49	14.40	14.43
54	NYSE	NVG	Tue, Nov 26, 2002	14.48	14.48	14.37	14.41
53	NYSE	NVG	Mon, Nov 25, 2002	14.50	14.63	14.35	14.40
52	NYSE	NVG	Fri, Nov 22, 2002	14.87	14.87	14.44	14.60
51	NYSE	NVG	Thu, Nov 21, 2002	14.83	14.85	14.80	14.85
50	NYSE	NVG	Wed, Nov 20, 2002	14.81	14.88	14.80	14.88
49	NYSE	NVG	Tue, Nov 19, 2002	14.80	14.86	14.80	14.81
48	NYSE	NVG	Mon, Nov 18, 2002	14.85	14.97	14.79	14.83
47	NYSE	NVG	Fri, Nov 15, 2002	14.79	14.86	14.79	14.86
46	NYSE	NVG	Thu, Nov 14, 2002	14.70	14.86	14.63	14.79
45	NYSE	NVG	Wed, Nov 13, 2002	14.81	14.82	14.69	14.75
44	NYSE	NVG	Tue, Nov 12, 2002	14.87	14.88	14.84	14.86
43	NYSE	NVG	Mon, Nov 11, 2002	14.96	14.96	14.80	14.86
42	NYSE	NVG	Fri, Nov 8, 2002	14.87	14.96	14.85	14.96
41	NYSE	NVG	Thu, Nov 7, 2002	14.99	15.00	14.86	14.93
40	NYSE	NVG	Wed, Nov 6, 2002	14.95	15.00	14.90	14.95
39	NYSE	NVG	Tue, Nov 5, 2002	14.94	14.99	14.91	14.97
38	NYSE	NVG	Mon, Nov 4, 2002	15.00	15.00	14.83	14.89
37	NYSE	NVG	Fri, Nov 1, 2002	14.99	15.10	14.97	14.99
36	NYSE	NVG	Thu, Oct 31, 2002	14.89	14.98	14.87	14.96
35	NYSE	NVG	Wed, Oct 30, 2002	14.70	14.85	14.70	14.81
34	NYSE	NVG	Tue, Oct 29, 2002	14.73	14.75	14.61	14.74
33	NYSE	NVG	Mon, Oct 28, 2002	14.49	14.80	14.46	14.70
32	NYSE	NVG	Fri, Oct 25, 2002	14.41	14.53	14.41	14.50
31	NYSE	NVG	Thu, Oct 24, 2002	14.20	14.50	14.20	14.50
30	NYSE	NVG	Wed, Oct 23, 2002	14.56	14.56	14.08	14.21
29	NYSE	NVG	Tue, Oct 22, 2002	14.70	14.74	14.58	14.64
28	NYSE	NVG	Mon, Oct 21, 2002	14.83	14.83	14.66	14.68
27	NYSE	NVG	Fri, Oct 18, 2002	14.70	14.83	14.59	14.83
26	NYSE	NVG	Thu, Oct 17, 2002	14.90	14.95	14.70	14.73
25	NYSE	NVG	Wed, Oct 16, 2002	15.01	15.14	14.90	14.98
24	NYSE	NVG	Tue, Oct 15, 2002	15.42	15.42	15.01	15.10
23	NYSE	NVG	Mon, Oct 14, 2002	15.50	15.50	15.37	15.37
22	NYSE	NVG	Fri, Oct 11, 2002	15.19	15.35	15.15	15.35
21	NYSE	NVG	Thu, Oct 10, 2002	15.39	15.39	15.09	15.18
20	NYSE	NVG	Wed, Oct 9, 2002	15.52	15.62	15.21	15.37
19	NYSE	NVG	Tue, Oct 8, 2002	15.44	16.00	15.44	15.60
18	NYSE	NVG	Mon, Oct 7, 2002	15.44	15.62	15.40	15.62
17	NYSE	NVG	Fri, Oct 4, 2002	15.39	15.47	15.39	15.44
16	NYSE	NVG	Thu, Oct 3, 2002	15.40	15.47	15.40	15.46
15	NYSE	NVG	Wed, Oct 2, 2002	15.45	15.50	15.25	15.39
14	NYSE	NVG	Tue, Oct 1, 2002	15.63	15.64	15.40	15.40
13	NYSE	NVG	Mon, Sep 30, 2002	15.62	15.62	15.46	15.61
12	NYSE	NVG	Fri, Sep 27, 2002	15.53	15.60	15.45	15.55
11	NYSE	NVG	Thu, Sep 26, 2002	15.43	15.60	15.36	15.53
10	NYSE	NVG	Wed, Sep 25, 2002	15.50	15.57	15.33	15.35
9	NYSE	NVG	Tue, Sep 24, 2002	15.43	15.50	15.28	15.50
8	NYSE	NVG	Mon, Sep 23, 2002	15.50	15.50	15.26	15.39
7	NYSE	NVG	Fri, Sep 20, 2002	15.35	15.50	15.31	15.46
6	NYSE	NVG	Thu, Sep 19, 2002	15.33	15.59	15.33	15.36
5	NYSE	NVG	Wed, Sep 18, 2002	15.32	15.42	15.25	15.31
4	NYSE	NVG	Tue, Sep 17, 2002	15.36	15.60	15.28	15.33
3	NYSE	NVG	Mon, Sep 16, 2002	15.35	15.45	15.31	15.35
2	NYSE	NVG	Fri, Sep 13, 2002	15.20	15.40	15.10	15.40
1	NYSE	NVG	Thu, Sep 12, 2002	15.09	15.18	15.00	15.07
#	Exchange	Symbol	Date	Open	High	Low	Close

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