National Presto Industries Inc NYSE:NPK Historical Prices

Below are the 3268 trading days of historical prices for NPK.

#	Exchange	Symbol	Date	Open	High	Low	Close
3268	NYSE	NPK	Fri, Apr 19, 2024	79.76	81.63	79.76	81.60
3267	NYSE	NPK	Thu, Apr 18, 2024	79.75	80.36	79.54	79.99
3266	NYSE	NPK	Wed, Apr 17, 2024	79.24	79.84	79.03	79.37
3265	NYSE	NPK	Tue, Apr 16, 2024	79.46	79.96	78.94	79.14
3264	NYSE	NPK	Mon, Apr 15, 2024	80.15	80.15	78.85	79.34
3263	NYSE	NPK	Fri, Apr 12, 2024	79.76	79.99	79.11	79.59
3262	NYSE	NPK	Thu, Apr 11, 2024	79.81	80.01	79.62	79.75
3261	NYSE	NPK	Wed, Apr 10, 2024	80.48	80.48	78.57	79.68
3260	NYSE	NPK	Tue, Apr 9, 2024	82.65	82.65	80.91	81.01
3259	NYSE	NPK	Mon, Apr 8, 2024	83.20	83.56	82.35	82.37
3258	NYSE	NPK	Fri, Apr 5, 2024	82.85	83.17	82.36	83.02
3257	NYSE	NPK	Thu, Apr 4, 2024	82.38	83.20	81.89	82.63
3256	NYSE	NPK	Wed, Apr 3, 2024	82.15	82.15	81.26	81.84
3255	NYSE	NPK	Tue, Apr 2, 2024	82.77	82.77	81.83	81.97
3254	NYSE	NPK	Mon, Apr 1, 2024	83.91	83.91	82.54	82.92
3253	NYSE	NPK	Thu, Mar 28, 2024	82.00	83.80	81.85	83.80
3252	NYSE	NPK	Wed, Mar 27, 2024	81.85	82.18	81.06	81.86
3251	NYSE	NPK	Tue, Mar 26, 2024	80.70	81.69	80.70	81.41
3250	NYSE	NPK	Mon, Mar 25, 2024	79.18	80.48	79.18	80.48
3249	NYSE	NPK	Fri, Mar 22, 2024	80.36	80.36	79.24	79.46
3248	NYSE	NPK	Thu, Mar 21, 2024	79.44	80.39	78.80	80.26
3247	NYSE	NPK	Wed, Mar 20, 2024	76.95	79.01	76.65	79.01
3246	NYSE	NPK	Tue, Mar 19, 2024	76.13	76.96	76.13	76.93
3245	NYSE	NPK	Mon, Mar 18, 2024	75.99	76.81	75.82	75.93
3244	NYSE	NPK	Fri, Mar 15, 2024	74.93	76.22	74.93	76.06
3243	NYSE	NPK	Thu, Mar 14, 2024	76.65	76.66	74.94	75.06
3242	NYSE	NPK	Wed, Mar 13, 2024	76.00	76.94	76.00	76.50
3241	NYSE	NPK	Tue, Mar 12, 2024	75.81	75.99	75.04	75.95
3240	NYSE	NPK	Mon, Mar 11, 2024	75.14	76.06	75.06	75.99
3239	NYSE	NPK	Fri, Mar 8, 2024	75.89	76.02	74.76	75.70
3238	NYSE	NPK	Thu, Mar 7, 2024	76.25	76.45	75.27	75.77
3237	NYSE	NPK	Wed, Mar 6, 2024	74.60	75.74	74.36	75.68
3236	NYSE	NPK	Tue, Mar 5, 2024	75.98	75.98	74.33	74.66
3235	NYSE	NPK	Mon, Mar 4, 2024	74.98	76.80	74.53	75.81
3234	NYSE	NPK	Fri, Mar 1, 2024	77.30	77.30	74.38	74.91
3233	NYSE	NPK	Thu, Feb 29, 2024	74.53	77.36	73.98	77.33
3232	NYSE	NPK	Wed, Feb 28, 2024	79.38	80.96	78.80	75.03
3231	NYSE	NPK	Tue, Feb 27, 2024	79.23	80.16	78.93	79.03
3230	NYSE	NPK	Mon, Feb 26, 2024	78.82	79.22	78.16	79.12
3229	NYSE	NPK	Fri, Feb 23, 2024	78.55	79.57	77.70	78.79
3228	NYSE	NPK	Thu, Feb 22, 2024	79.62	79.85	78.52	78.83
3227	NYSE	NPK	Wed, Feb 21, 2024	80.45	81.31	78.80	80.07
3226	NYSE	NPK	Tue, Feb 20, 2024	78.24	82.19	77.73	80.28
3225	NYSE	NPK	Fri, Feb 16, 2024	78.59	79.23	77.60	78.24
3224	NYSE	NPK	Thu, Feb 15, 2024	76.38	78.79	75.79	78.41
3223	NYSE	NPK	Wed, Feb 14, 2024	75.50	76.55	75.50	76.37
3222	NYSE	NPK	Tue, Feb 13, 2024	77.01	77.92	74.85	75.20
3221	NYSE	NPK	Mon, Feb 12, 2024	77.63	78.36	77.09	78.03
3220	NYSE	NPK	Fri, Feb 9, 2024	76.89	76.99	76.32	76.50
3219	NYSE	NPK	Thu, Feb 8, 2024	76.50	76.80	75.09	76.50
3218	NYSE	NPK	Wed, Feb 7, 2024	78.15	78.15	76.52	76.88
3217	NYSE	NPK	Tue, Feb 6, 2024	77.37	78.53	77.35	78.14
3216	NYSE	NPK	Mon, Feb 5, 2024	76.52	78.09	75.65	77.91
3215	NYSE	NPK	Fri, Feb 2, 2024	78.77	78.82	76.99	77.13
3214	NYSE	NPK	Thu, Feb 1, 2024	79.02	79.35	78.82	79.04
3213	NYSE	NPK	Wed, Jan 31, 2024	81.17	81.17	79.17	79.17
3212	NYSE	NPK	Tue, Jan 30, 2024	81.87	81.99	80.81	81.19
3211	NYSE	NPK	Mon, Jan 29, 2024	82.97	82.97	81.50	82.48
3210	NYSE	NPK	Fri, Jan 26, 2024	84.02	84.02	81.57	82.69
3209	NYSE	NPK	Thu, Jan 25, 2024	83.30	83.89	82.00	83.46
3208	NYSE	NPK	Wed, Jan 24, 2024	82.15	83.36	82.15	82.60
3207	NYSE	NPK	Tue, Jan 23, 2024	83.72	83.72	82.22	82.40
3206	NYSE	NPK	Mon, Jan 22, 2024	83.95	84.29	82.99	82.99
3205	NYSE	NPK	Fri, Jan 19, 2024	83.08	83.71	83.08	83.55
3204	NYSE	NPK	Thu, Jan 18, 2024	82.97	83.48	82.04	82.84
3203	NYSE	NPK	Wed, Jan 17, 2024	81.11	83.40	80.73	83.19
3202	NYSE	NPK	Tue, Jan 16, 2024	80.93	81.72	80.54	81.24
3201	NYSE	NPK	Fri, Jan 12, 2024	81.13	81.63	80.37	81.56
3200	NYSE	NPK	Thu, Jan 11, 2024	80.50	80.84	79.92	80.77
3199	NYSE	NPK	Wed, Jan 10, 2024	79.43	80.63	79.43	80.60
3198	NYSE	NPK	Tue, Jan 9, 2024	78.87	79.95	78.55	79.82
3197	NYSE	NPK	Mon, Jan 8, 2024	80.00	80.00	79.20	79.53
3196	NYSE	NPK	Fri, Jan 5, 2024	79.63	80.19	79.10	80.05
3195	NYSE	NPK	Thu, Jan 4, 2024	80.41	80.41	79.20	80.12
3194	NYSE	NPK	Wed, Jan 3, 2024	80.36	81.38	79.98	79.98
3193	NYSE	NPK	Tue, Jan 2, 2024	80.27	80.90	80.09	80.65
3192	NYSE	NPK	Fri, Dec 29, 2023	81.51	81.51	80.00	80.28
3191	NYSE	NPK	Thu, Dec 28, 2023	82.36	82.40	81.26	81.40
3190	NYSE	NPK	Wed, Dec 27, 2023	82.00	83.00	82.00	82.68
3189	NYSE	NPK	Tue, Dec 26, 2023	81.95	82.02	81.72	81.72
3188	NYSE	NPK	Fri, Dec 22, 2023	80.90	82.00	80.85	81.54
3187	NYSE	NPK	Thu, Dec 21, 2023	79.28	80.36	79.02	80.29
3186	NYSE	NPK	Wed, Dec 20, 2023	80.60	81.64	79.41	79.56
3185	NYSE	NPK	Tue, Dec 19, 2023	78.95	80.05	78.95	79.81
3184	NYSE	NPK	Mon, Dec 18, 2023	80.54	80.54	78.96	79.19
3183	NYSE	NPK	Fri, Dec 15, 2023	81.65	81.65	79.86	80.17
3182	NYSE	NPK	Thu, Dec 14, 2023	80.44	81.53	80.26	81.53
3181	NYSE	NPK	Wed, Dec 13, 2023	79.57	81.20	78.51	81.02
3180	NYSE	NPK	Tue, Dec 12, 2023	78.20	79.78	78.05	79.21
3179	NYSE	NPK	Mon, Dec 11, 2023	78.00	78.33	77.61	78.06
3178	NYSE	NPK	Fri, Dec 8, 2023	78.13	79.08	78.13	78.85
3177	NYSE	NPK	Thu, Dec 7, 2023	78.88	79.72	77.81	78.29
3176	NYSE	NPK	Wed, Dec 6, 2023	78.61	78.63	77.96	78.37
3175	NYSE	NPK	Tue, Dec 5, 2023	79.70	80.25	78.00	78.24
3174	NYSE	NPK	Mon, Dec 4, 2023	76.09	79.82	76.09	79.08
3173	NYSE	NPK	Fri, Dec 1, 2023	76.28	76.92	75.97	76.39
3172	NYSE	NPK	Thu, Nov 30, 2023	74.79	75.18	73.44	74.72
3171	NYSE	NPK	Wed, Nov 29, 2023	74.44	74.80	74.03	74.20
3170	NYSE	NPK	Tue, Nov 28, 2023	75.42	75.42	74.02	74.74
3169	NYSE	NPK	Mon, Nov 27, 2023	78.16	78.16	76.34	76.34
3168	NYSE	NPK	Fri, Nov 24, 2023	76.68	77.96	76.68	77.20
3167	NYSE	NPK	Wed, Nov 22, 2023	78.59	78.59	76.89	77.54
3166	NYSE	NPK	Tue, Nov 21, 2023	77.31	78.36	75.75	77.91
3165	NYSE	NPK	Mon, Nov 20, 2023	77.92	77.92	76.05	77.26
3164	NYSE	NPK	Fri, Nov 17, 2023	79.97	79.97	78.30	78.31
3163	NYSE	NPK	Thu, Nov 16, 2023	80.64	80.64	79.16	79.31
3162	NYSE	NPK	Wed, Nov 15, 2023	80.07	80.09	78.32	79.88
3161	NYSE	NPK	Tue, Nov 14, 2023	78.37	80.10	78.37	79.91
3160	NYSE	NPK	Mon, Nov 13, 2023	78.11	78.19	77.52	78.01
3159	NYSE	NPK	Fri, Nov 10, 2023	79.49	79.49	77.75	78.32
3158	NYSE	NPK	Thu, Nov 9, 2023	78.83	79.00	78.32	78.75
3157	NYSE	NPK	Wed, Nov 8, 2023	75.69	79.19	75.69	79.08
3156	NYSE	NPK	Tue, Nov 7, 2023	77.00	77.00	75.45	75.86
3155	NYSE	NPK	Mon, Nov 6, 2023	77.52	77.52	76.47	76.90
3154	NYSE	NPK	Fri, Nov 3, 2023	77.57	78.38	77.47	77.67
3153	NYSE	NPK	Thu, Nov 2, 2023	76.81	77.27	75.85	76.58
3152	NYSE	NPK	Wed, Nov 1, 2023	75.12	76.66	74.85	76.40
3151	NYSE	NPK	Tue, Oct 31, 2023	73.23	74.98	73.23	74.75
3150	NYSE	NPK	Mon, Oct 30, 2023	74.00	74.18	72.12	73.98
3149	NYSE	NPK	Fri, Oct 27, 2023	73.24	73.86	72.95	73.33
3148	NYSE	NPK	Thu, Oct 26, 2023	73.87	73.96	72.61	73.00
3147	NYSE	NPK	Wed, Oct 25, 2023	73.17	74.33	73.17	73.85
3146	NYSE	NPK	Tue, Oct 24, 2023	73.50	73.50	72.50	72.54
3145	NYSE	NPK	Mon, Oct 23, 2023	73.00	73.64	72.59	72.78
3144	NYSE	NPK	Fri, Oct 20, 2023	74.03	74.14	72.81	73.09
3143	NYSE	NPK	Thu, Oct 19, 2023	74.59	74.65	73.20	73.85
3142	NYSE	NPK	Wed, Oct 18, 2023	74.85	75.65	74.65	74.86
3141	NYSE	NPK	Tue, Oct 17, 2023	74.30	76.15	74.30	75.21
3140	NYSE	NPK	Mon, Oct 16, 2023	74.10	75.12	73.98	74.48
3139	NYSE	NPK	Fri, Oct 13, 2023	73.51	74.60	72.82	74.04
3138	NYSE	NPK	Thu, Oct 12, 2023	74.99	76.00	73.51	74.15
3137	NYSE	NPK	Wed, Oct 11, 2023	74.04	75.25	74.04	75.25
3136	NYSE	NPK	Tue, Oct 10, 2023	74.86	75.35	73.95	74.42
3135	NYSE	NPK	Mon, Oct 9, 2023	73.85	75.29	73.85	74.77
3134	NYSE	NPK	Fri, Oct 6, 2023	71.83	73.90	71.44	73.04
3133	NYSE	NPK	Thu, Oct 5, 2023	71.51	72.58	71.51	72.36
3132	NYSE	NPK	Wed, Oct 4, 2023	71.97	71.97	70.86	71.60
3131	NYSE	NPK	Tue, Oct 3, 2023	73.02	73.02	71.83	71.91
3130	NYSE	NPK	Mon, Oct 2, 2023	72.63	73.68	72.06	73.64
3129	NYSE	NPK	Fri, Sep 29, 2023	72.11	72.90	71.93	72.46
3128	NYSE	NPK	Thu, Sep 28, 2023	72.57	73.96	72.21	72.42
3127	NYSE	NPK	Wed, Sep 27, 2023	72.89	73.23	72.28	72.82
3126	NYSE	NPK	Tue, Sep 26, 2023	72.20	72.46	71.65	71.88
3125	NYSE	NPK	Mon, Sep 25, 2023	71.88	72.94	71.22	72.89
3124	NYSE	NPK	Fri, Sep 22, 2023	74.02	74.02	72.09	72.26
3123	NYSE	NPK	Thu, Sep 21, 2023	72.65	74.93	72.65	74.20
3122	NYSE	NPK	Wed, Sep 20, 2023	73.42	73.76	72.70	72.96
3121	NYSE	NPK	Tue, Sep 19, 2023	75.04	75.04	72.96	72.96
3120	NYSE	NPK	Mon, Sep 18, 2023	75.19	75.56	74.75	75.08
3119	NYSE	NPK	Fri, Sep 15, 2023	76.69	76.69	73.77	75.26
3118	NYSE	NPK	Thu, Sep 14, 2023	75.57	77.04	75.57	76.46
3117	NYSE	NPK	Wed, Sep 13, 2023	74.14	75.73	73.81	75.49
3116	NYSE	NPK	Tue, Sep 12, 2023	72.99	75.15	72.99	73.80
3115	NYSE	NPK	Mon, Sep 11, 2023	71.99	73.10	71.74	72.97
3114	NYSE	NPK	Fri, Sep 8, 2023	71.33	72.94	71.10	71.83
3113	NYSE	NPK	Thu, Sep 7, 2023	70.47	72.39	70.47	71.58
3112	NYSE	NPK	Wed, Sep 6, 2023	70.82	70.85	70.24	70.81
3111	NYSE	NPK	Tue, Sep 5, 2023	73.87	74.04	71.09	71.22
3110	NYSE	NPK	Fri, Sep 1, 2023	74.87	75.31	73.91	74.02
3109	NYSE	NPK	Thu, Aug 31, 2023	75.40	75.60	74.67	74.85
3108	NYSE	NPK	Wed, Aug 30, 2023	72.44	75.42	72.44	75.21
3107	NYSE	NPK	Tue, Aug 29, 2023	72.70	72.71	71.51	72.44
3106	NYSE	NPK	Mon, Aug 28, 2023	72.89	73.66	72.68	73.15
3105	NYSE	NPK	Fri, Aug 25, 2023	72.95	73.53	72.52	72.82
3104	NYSE	NPK	Thu, Aug 24, 2023	72.68	73.50	72.68	72.93
3103	NYSE	NPK	Wed, Aug 23, 2023	73.73	73.73	72.89	73.12
3102	NYSE	NPK	Tue, Aug 22, 2023	73.68	74.50	73.57	73.68
3101	NYSE	NPK	Mon, Aug 21, 2023	75.52	75.52	74.01	74.16
3100	NYSE	NPK	Fri, Aug 18, 2023	74.93	75.83	74.93	75.49
3099	NYSE	NPK	Thu, Aug 17, 2023	76.18	77.07	75.37	75.40
3098	NYSE	NPK	Wed, Aug 16, 2023	77.50	77.83	76.37	76.37
3097	NYSE	NPK	Tue, Aug 15, 2023	76.50	78.02	76.50	77.31
3096	NYSE	NPK	Mon, Aug 14, 2023	78.80	78.98	77.24	77.24
3095	NYSE	NPK	Fri, Aug 11, 2023	79.36	80.41	78.61	78.82
3094	NYSE	NPK	Thu, Aug 10, 2023	79.98	79.98	78.77	79.47
3093	NYSE	NPK	Wed, Aug 9, 2023	80.99	80.99	79.37	79.79
3092	NYSE	NPK	Tue, Aug 8, 2023	80.22	81.40	80.21	81.03
3091	NYSE	NPK	Mon, Aug 7, 2023	79.59	80.68	79.48	80.08
3090	NYSE	NPK	Fri, Aug 4, 2023	79.92	81.08	79.71	79.99
3089	NYSE	NPK	Thu, Aug 3, 2023	78.73	80.10	78.09	79.63
3088	NYSE	NPK	Wed, Aug 2, 2023	76.88	79.36	76.84	78.94
3087	NYSE	NPK	Tue, Aug 1, 2023	76.23	78.10	76.23	78.10
3086	NYSE	NPK	Mon, Jul 31, 2023	77.75	78.31	76.69	78.31
3085	NYSE	NPK	Fri, Jul 28, 2023	76.94	78.18	75.73	77.94
3084	NYSE	NPK	Thu, Jul 27, 2023	77.32	78.19	76.01	76.25
3083	NYSE	NPK	Wed, Jul 26, 2023	77.47	78.04	77.28	77.63
3082	NYSE	NPK	Tue, Jul 25, 2023	77.80	78.32	76.66	77.47
3081	NYSE	NPK	Mon, Jul 24, 2023	77.21	77.86	76.93	77.73
3080	NYSE	NPK	Fri, Jul 21, 2023	77.65	77.65	76.34	77.01
3079	NYSE	NPK	Thu, Jul 20, 2023	76.10	77.29	75.78	77.00
3078	NYSE	NPK	Wed, Jul 19, 2023	77.55	77.55	75.71	76.29
3077	NYSE	NPK	Tue, Jul 18, 2023	76.03	77.64	76.03	77.05
3076	NYSE	NPK	Mon, Jul 17, 2023	77.46	77.72	75.96	76.14
3075	NYSE	NPK	Fri, Jul 14, 2023	76.39	77.87	75.74	77.42
3074	NYSE	NPK	Thu, Jul 13, 2023	75.90	77.62	75.89	76.81
3073	NYSE	NPK	Wed, Jul 12, 2023	76.85	78.11	75.81	76.14
3072	NYSE	NPK	Tue, Jul 11, 2023	76.79	77.38	75.95	77.17
3071	NYSE	NPK	Mon, Jul 10, 2023	76.11	77.42	76.11	76.87
3070	NYSE	NPK	Fri, Jul 7, 2023	75.07	76.47	75.07	75.77
3069	NYSE	NPK	Thu, Jul 6, 2023	74.36	75.77	73.58	75.28
3068	NYSE	NPK	Wed, Jul 5, 2023	74.56	75.17	73.28	74.35
3067	NYSE	NPK	Mon, Jul 3, 2023	73.12	74.56	73.12	74.43
3066	NYSE	NPK	Fri, Jun 30, 2023	73.29	73.48	72.35	73.20
3065	NYSE	NPK	Thu, Jun 29, 2023	72.51	73.47	72.35	72.98
3064	NYSE	NPK	Wed, Jun 28, 2023	73.26	73.26	72.12	72.51
3063	NYSE	NPK	Tue, Jun 27, 2023	73.25	74.08	73.09	73.19
3062	NYSE	NPK	Mon, Jun 26, 2023	72.21	74.03	72.21	73.20
3061	NYSE	NPK	Fri, Jun 23, 2023	73.56	74.30	72.01	72.72
3060	NYSE	NPK	Thu, Jun 22, 2023	76.61	76.61	74.42	74.51
3059	NYSE	NPK	Wed, Jun 21, 2023	76.66	77.86	76.62	76.84
3058	NYSE	NPK	Tue, Jun 20, 2023	77.41	77.80	76.06	77.25
3057	NYSE	NPK	Fri, Jun 16, 2023	79.98	79.98	77.46	77.67
3056	NYSE	NPK	Thu, Jun 15, 2023	78.58	79.52	78.36	79.42
3055	NYSE	NPK	Wed, Jun 14, 2023	80.26	80.26	78.43	78.86
3054	NYSE	NPK	Tue, Jun 13, 2023	80.84	81.32	80.25	80.37
3053	NYSE	NPK	Mon, Jun 12, 2023	79.78	81.81	79.31	81.03
3052	NYSE	NPK	Fri, Jun 9, 2023	82.00	82.59	79.37	80.13
3051	NYSE	NPK	Thu, Jun 8, 2023	81.67	82.50	81.67	82.16
3050	NYSE	NPK	Wed, Jun 7, 2023	80.32	81.96	80.32	81.73
3049	NYSE	NPK	Tue, Jun 6, 2023	77.67	80.79	77.67	80.30
3048	NYSE	NPK	Mon, Jun 5, 2023	78.04	78.35	76.59	78.14
3047	NYSE	NPK	Fri, Jun 2, 2023	76.50	78.14	76.50	78.14
3046	NYSE	NPK	Thu, Jun 1, 2023	74.93	76.46	74.53	76.28
3045	NYSE	NPK	Wed, May 31, 2023	75.40	76.02	74.16	74.54
3044	NYSE	NPK	Tue, May 30, 2023	75.91	76.26	75.46	75.92
3043	NYSE	NPK	Fri, May 26, 2023	75.52	76.55	75.52	76.15
3042	NYSE	NPK	Thu, May 25, 2023	74.65	75.88	73.89	75.80
3041	NYSE	NPK	Wed, May 24, 2023	75.29	75.29	74.32	74.81
3040	NYSE	NPK	Tue, May 23, 2023	75.22	75.63	74.73	75.21
3039	NYSE	NPK	Mon, May 22, 2023	74.78	75.83	74.35	75.55
3038	NYSE	NPK	Fri, May 19, 2023	75.22	75.22	74.27	74.78
3037	NYSE	NPK	Thu, May 18, 2023	74.99	75.23	74.24	75.18
3036	NYSE	NPK	Wed, May 17, 2023	74.02	74.92	73.67	74.92
3035	NYSE	NPK	Tue, May 16, 2023	73.38	73.83	72.60	73.38
3034	NYSE	NPK	Mon, May 15, 2023	72.76	74.00	72.49	73.33
3033	NYSE	NPK	Fri, May 12, 2023	72.03	72.58	71.57	72.28
3032	NYSE	NPK	Thu, May 11, 2023	71.03	72.12	70.66	72.06
3031	NYSE	NPK	Wed, May 10, 2023	71.18	71.66	70.50	71.50
3030	NYSE	NPK	Tue, May 9, 2023	69.40	71.17	68.82	70.92
3029	NYSE	NPK	Mon, May 8, 2023	70.25	70.25	68.82	69.28
3028	NYSE	NPK	Fri, May 5, 2023	68.74	68.92	68.41	68.62
3027	NYSE	NPK	Thu, May 4, 2023	68.02	68.51	67.18	68.15
3026	NYSE	NPK	Wed, May 3, 2023	67.91	69.04	67.91	68.18
3025	NYSE	NPK	Tue, May 2, 2023	68.16	68.28	66.84	68.00
3024	NYSE	NPK	Mon, May 1, 2023	68.00	68.85	68.00	68.55
3023	NYSE	NPK	Fri, Apr 28, 2023	68.89	69.42	68.02	68.02
3022	NYSE	NPK	Thu, Apr 27, 2023	69.20	69.59	68.58	68.72
3021	NYSE	NPK	Wed, Apr 26, 2023	68.92	69.70	68.51	68.74
3020	NYSE	NPK	Tue, Apr 25, 2023	70.58	70.79	69.27	69.37
3019	NYSE	NPK	Mon, Apr 24, 2023	71.00	71.32	70.56	70.63
3018	NYSE	NPK	Fri, Apr 21, 2023	71.70	71.75	70.74	70.79
3017	NYSE	NPK	Thu, Apr 20, 2023	70.88	71.40	70.83	71.36
3016	NYSE	NPK	Wed, Apr 19, 2023	70.99	71.33	70.67	71.06
3015	NYSE	NPK	Tue, Apr 18, 2023	71.61	71.65	70.55	70.97
3014	NYSE	NPK	Mon, Apr 17, 2023	71.30	71.84	71.03	71.52
3013	NYSE	NPK	Fri, Apr 14, 2023	70.88	71.26	70.40	71.21
3012	NYSE	NPK	Thu, Apr 13, 2023	71.02	71.57	70.45	70.93
3011	NYSE	NPK	Wed, Apr 12, 2023	71.00	71.49	70.37	71.11
3010	NYSE	NPK	Tue, Apr 11, 2023	71.21	71.60	70.75	70.75
3009	NYSE	NPK	Mon, Apr 10, 2023	70.23	71.28	70.15	70.91
3008	NYSE	NPK	Thu, Apr 6, 2023	70.14	70.43	69.80	70.19
3007	NYSE	NPK	Wed, Apr 5, 2023	72.02	72.02	70.49	70.66
3006	NYSE	NPK	Tue, Apr 4, 2023	73.34	73.74	71.76	72.07
3005	NYSE	NPK	Mon, Apr 3, 2023	72.17	72.95	71.59	72.95
3004	NYSE	NPK	Fri, Mar 31, 2023	70.63	72.09	70.17	72.09
3003	NYSE	NPK	Thu, Mar 30, 2023	70.61	71.07	70.00	70.31
3002	NYSE	NPK	Wed, Mar 29, 2023	70.36	70.75	69.74	70.36
3001	NYSE	NPK	Tue, Mar 28, 2023	70.90	71.51	69.51	70.26
3000	NYSE	NPK	Mon, Mar 27, 2023	71.12	71.52	70.70	71.10
2999	NYSE	NPK	Fri, Mar 24, 2023	69.86	71.06	69.60	70.79
2998	NYSE	NPK	Thu, Mar 23, 2023	71.82	71.94	70.09	70.24
2997	NYSE	NPK	Wed, Mar 22, 2023	73.81	73.93	71.34	71.58
2996	NYSE	NPK	Tue, Mar 21, 2023	73.36	74.00	72.93	73.95
2995	NYSE	NPK	Mon, Mar 20, 2023	74.38	74.90	72.37	72.66
2994	NYSE	NPK	Fri, Mar 17, 2023	74.47	75.00	73.23	74.53
2993	NYSE	NPK	Thu, Mar 16, 2023	73.97	75.39	73.28	74.91
2992	NYSE	NPK	Wed, Mar 15, 2023	74.43	75.06	73.91	74.48
2991	NYSE	NPK	Tue, Mar 14, 2023	74.51	75.76	74.29	75.62
2990	NYSE	NPK	Mon, Mar 13, 2023	72.62	74.44	71.57	73.75
2989	NYSE	NPK	Fri, Mar 10, 2023	73.66	74.63	73.16	73.69
2988	NYSE	NPK	Thu, Mar 9, 2023	73.87	74.33	73.66	73.94
2987	NYSE	NPK	Wed, Mar 8, 2023	73.11	73.65	72.70	73.62
2986	NYSE	NPK	Tue, Mar 7, 2023	73.45	74.57	72.88	73.11
2985	NYSE	NPK	Mon, Mar 6, 2023	72.84	73.33	72.20	73.12
2984	NYSE	NPK	Fri, Mar 3, 2023	71.91	73.52	71.75	73.28
2983	NYSE	NPK	Thu, Mar 2, 2023	68.32	72.54	68.32	71.91
2982	NYSE	NPK	Wed, Mar 1, 2023	68.97	70.16	67.77	69.94
2981	NYSE	NPK	Tue, Feb 28, 2023	70.50	71.88	68.63	68.63
2980	NYSE	NPK	Mon, Feb 27, 2023	77.34	78.90	75.71	71.71
2979	NYSE	NPK	Fri, Feb 24, 2023	76.48	79.66	76.09	76.57
2978	NYSE	NPK	Thu, Feb 23, 2023	76.77	81.50	76.62	79.96
2977	NYSE	NPK	Wed, Feb 22, 2023	76.89	77.50	76.40	76.56
2976	NYSE	NPK	Tue, Feb 21, 2023	77.00	77.00	75.82	76.13
2975	NYSE	NPK	Fri, Feb 17, 2023	75.32	77.05	75.32	76.68
2974	NYSE	NPK	Thu, Feb 16, 2023	74.05	75.34	74.05	75.08
2973	NYSE	NPK	Wed, Feb 15, 2023	73.57	75.41	72.42	75.40
2972	NYSE	NPK	Tue, Feb 14, 2023	74.44	74.44	73.27	74.04
2971	NYSE	NPK	Mon, Feb 13, 2023	73.39	74.64	73.38	74.05
2970	NYSE	NPK	Fri, Feb 10, 2023	72.59	73.64	72.59	73.44
2969	NYSE	NPK	Thu, Feb 9, 2023	74.28	74.28	72.29	72.29
2968	NYSE	NPK	Wed, Feb 8, 2023	75.55	75.56	74.18	74.18
2967	NYSE	NPK	Tue, Feb 7, 2023	73.81	75.57	73.01	75.22
2966	NYSE	NPK	Mon, Feb 6, 2023	76.15	76.56	73.79	73.95
2965	NYSE	NPK	Fri, Feb 3, 2023	75.91	77.12	75.36	76.10
2964	NYSE	NPK	Thu, Feb 2, 2023	75.88	76.85	75.27	76.59
2963	NYSE	NPK	Wed, Feb 1, 2023	76.13	76.58	75.13	75.29
2962	NYSE	NPK	Tue, Jan 31, 2023	74.20	76.90	74.20	76.61
2961	NYSE	NPK	Mon, Jan 30, 2023	72.89	74.60	72.89	74.15
2960	NYSE	NPK	Fri, Jan 27, 2023	72.61	73.95	72.22	73.03
2959	NYSE	NPK	Thu, Jan 26, 2023	72.16	72.86	72.12	72.67
2958	NYSE	NPK	Wed, Jan 25, 2023	71.44	71.98	70.39	71.71
2957	NYSE	NPK	Tue, Jan 24, 2023	71.64	72.07	71.05	71.66
2956	NYSE	NPK	Mon, Jan 23, 2023	70.85	72.07	70.60	71.02
2955	NYSE	NPK	Fri, Jan 20, 2023	70.56	71.17	68.76	71.05
2954	NYSE	NPK	Thu, Jan 19, 2023	70.90	71.34	69.89	70.06
2953	NYSE	NPK	Wed, Jan 18, 2023	73.31	73.31	70.96	71.06
2952	NYSE	NPK	Tue, Jan 17, 2023	72.00	73.12	72.00	73.06
2951	NYSE	NPK	Fri, Jan 13, 2023	70.54	72.05	70.54	71.85
2950	NYSE	NPK	Thu, Jan 12, 2023	71.51	72.08	69.98	71.20
2949	NYSE	NPK	Wed, Jan 11, 2023	71.32	71.32	70.69	71.32
2948	NYSE	NPK	Tue, Jan 10, 2023	69.09	71.26	69.09	71.05
2947	NYSE	NPK	Mon, Jan 9, 2023	71.25	71.25	69.41	69.51
2946	NYSE	NPK	Fri, Jan 6, 2023	69.69	71.28	69.69	70.68
2945	NYSE	NPK	Thu, Jan 5, 2023	68.79	69.25	67.90	69.08
2944	NYSE	NPK	Wed, Jan 4, 2023	69.69	70.26	68.16	68.85
2943	NYSE	NPK	Tue, Jan 3, 2023	68.87	69.30	67.86	69.10
2942	NYSE	NPK	Fri, Dec 30, 2022	68.03	68.74	67.48	68.46
2941	NYSE	NPK	Thu, Dec 29, 2022	68.74	69.07	67.87	68.61
2940	NYSE	NPK	Wed, Dec 28, 2022	68.23	68.25	67.23	67.23
2939	NYSE	NPK	Tue, Dec 27, 2022	68.90	69.21	68.13	68.13
2938	NYSE	NPK	Fri, Dec 23, 2022	68.04	69.24	68.04	69.11
2937	NYSE	NPK	Thu, Dec 22, 2022	68.69	68.79	67.37	68.45
2936	NYSE	NPK	Wed, Dec 21, 2022	67.53	69.38	67.09	68.68
2935	NYSE	NPK	Tue, Dec 20, 2022	66.90	68.23	66.33	67.24
2934	NYSE	NPK	Mon, Dec 19, 2022	67.03	68.49	66.55	67.23
2933	NYSE	NPK	Fri, Dec 16, 2022	67.53	67.70	66.18	66.90
2932	NYSE	NPK	Thu, Dec 15, 2022	69.57	69.57	67.55	68.25
2931	NYSE	NPK	Wed, Dec 14, 2022	68.94	70.47	68.94	69.79
2930	NYSE	NPK	Tue, Dec 13, 2022	69.94	71.01	68.51	69.05
2929	NYSE	NPK	Mon, Dec 12, 2022	69.26	69.52	68.46	69.31
2928	NYSE	NPK	Fri, Dec 9, 2022	68.98	70.00	68.91	69.53
2927	NYSE	NPK	Thu, Dec 8, 2022	69.03	69.55	68.68	69.30
2926	NYSE	NPK	Wed, Dec 7, 2022	70.38	70.38	68.37	68.60
2925	NYSE	NPK	Tue, Dec 6, 2022	70.44	70.44	69.37	69.97
2924	NYSE	NPK	Mon, Dec 5, 2022	70.03	70.35	69.87	70.32
2923	NYSE	NPK	Fri, Dec 2, 2022	69.06	70.74	68.82	70.52
2922	NYSE	NPK	Thu, Dec 1, 2022	68.85	69.47	68.19	69.40
2921	NYSE	NPK	Wed, Nov 30, 2022	67.54	69.19	66.58	69.12
2920	NYSE	NPK	Tue, Nov 29, 2022	68.95	69.27	67.66	67.73
2919	NYSE	NPK	Mon, Nov 28, 2022	69.99	69.99	68.94	69.37
2918	NYSE	NPK	Fri, Nov 25, 2022	69.55	70.16	69.55	70.16
2917	NYSE	NPK	Wed, Nov 23, 2022	71.18	71.18	69.66	69.82
2916	NYSE	NPK	Tue, Nov 22, 2022	70.42	70.98	69.90	70.70
2915	NYSE	NPK	Mon, Nov 21, 2022	68.52	70.24	68.52	70.05
2914	NYSE	NPK	Fri, Nov 18, 2022	69.19	69.21	68.23	68.79
2913	NYSE	NPK	Thu, Nov 17, 2022	67.49	68.16	67.12	68.10
2912	NYSE	NPK	Wed, Nov 16, 2022	68.35	68.36	67.52	68.00
2911	NYSE	NPK	Tue, Nov 15, 2022	68.35	69.51	68.03	68.36
2910	NYSE	NPK	Mon, Nov 14, 2022	69.21	69.21	67.82	68.04
2909	NYSE	NPK	Fri, Nov 11, 2022	71.22	71.22	69.24	69.41
2908	NYSE	NPK	Thu, Nov 10, 2022	69.57	70.96	69.13	70.78
2907	NYSE	NPK	Wed, Nov 9, 2022	69.22	69.29	67.93	68.28
2906	NYSE	NPK	Tue, Nov 8, 2022	70.12	71.42	69.32	69.83
2905	NYSE	NPK	Mon, Nov 7, 2022	69.46	70.84	69.19	70.38
2904	NYSE	NPK	Fri, Nov 4, 2022	69.00	69.89	68.01	69.81
2903	NYSE	NPK	Thu, Nov 3, 2022	68.49	69.40	67.34	68.57
2902	NYSE	NPK	Wed, Nov 2, 2022	69.70	71.25	68.98	69.34
2901	NYSE	NPK	Tue, Nov 1, 2022	70.71	71.35	70.00	70.49
2900	NYSE	NPK	Mon, Oct 31, 2022	70.68	71.73	70.21	70.49
2899	NYSE	NPK	Fri, Oct 28, 2022	69.98	71.10	69.98	70.33
2898	NYSE	NPK	Thu, Oct 27, 2022	69.23	70.68	69.14	69.52
2897	NYSE	NPK	Wed, Oct 26, 2022	69.81	69.81	68.19	68.43
2896	NYSE	NPK	Tue, Oct 25, 2022	68.92	70.00	68.92	69.43
2895	NYSE	NPK	Mon, Oct 24, 2022	69.84	69.84	68.80	69.23
2894	NYSE	NPK	Fri, Oct 21, 2022	67.22	69.04	67.22	68.83
2893	NYSE	NPK	Thu, Oct 20, 2022	66.74	67.78	66.15	66.75
2892	NYSE	NPK	Wed, Oct 19, 2022	66.28	66.93	65.63	66.64
2891	NYSE	NPK	Tue, Oct 18, 2022	66.78	67.39	65.66	66.84
2890	NYSE	NPK	Mon, Oct 17, 2022	65.34	66.64	64.71	65.89
2889	NYSE	NPK	Fri, Oct 14, 2022	66.66	66.66	64.17	64.33
2888	NYSE	NPK	Thu, Oct 13, 2022	64.86	67.03	64.86	66.46
2887	NYSE	NPK	Wed, Oct 12, 2022	65.25	66.20	65.04	65.79
2886	NYSE	NPK	Tue, Oct 11, 2022	64.94	66.28	64.03	65.78
2885	NYSE	NPK	Mon, Oct 10, 2022	63.99	65.72	63.90	64.91
2884	NYSE	NPK	Fri, Oct 7, 2022	64.67	65.00	63.90	64.27
2883	NYSE	NPK	Thu, Oct 6, 2022	64.61	65.28	64.41	65.10
2882	NYSE	NPK	Wed, Oct 5, 2022	66.06	66.06	65.00	65.44
2881	NYSE	NPK	Tue, Oct 4, 2022	66.84	68.28	66.35	67.01
2880	NYSE	NPK	Mon, Oct 3, 2022	65.20	67.26	65.20	66.49
2879	NYSE	NPK	Fri, Sep 30, 2022	64.92	66.57	64.72	65.05
2878	NYSE	NPK	Thu, Sep 29, 2022	65.49	65.49	63.85	64.46
2877	NYSE	NPK	Wed, Sep 28, 2022	64.69	66.47	64.20	65.86
2876	NYSE	NPK	Tue, Sep 27, 2022	65.96	66.39	64.24	64.42
2875	NYSE	NPK	Mon, Sep 26, 2022	65.52	66.65	65.50	65.72
2874	NYSE	NPK	Fri, Sep 23, 2022	65.31	65.58	64.12	65.49
2873	NYSE	NPK	Thu, Sep 22, 2022	65.95	65.95	64.74	65.63
2872	NYSE	NPK	Wed, Sep 21, 2022	67.83	68.48	66.41	66.42
2871	NYSE	NPK	Tue, Sep 20, 2022	65.91	67.11	65.63	66.98
2870	NYSE	NPK	Mon, Sep 19, 2022	66.42	67.25	65.50	66.54
2869	NYSE	NPK	Fri, Sep 16, 2022	64.73	66.72	64.49	66.25
2868	NYSE	NPK	Thu, Sep 15, 2022	64.67	65.69	64.50	65.30
2867	NYSE	NPK	Wed, Sep 14, 2022	63.29	64.82	63.06	64.71
2866	NYSE	NPK	Tue, Sep 13, 2022	66.04	66.38	63.31	63.51
2865	NYSE	NPK	Mon, Sep 12, 2022	66.95	67.27	65.97	67.27
2864	NYSE	NPK	Fri, Sep 9, 2022	66.19	66.63	65.20	66.48
2863	NYSE	NPK	Thu, Sep 8, 2022	66.11	66.11	65.19	65.44
2862	NYSE	NPK	Wed, Sep 7, 2022	66.09	66.63	65.86	66.39
2861	NYSE	NPK	Tue, Sep 6, 2022	66.65	66.65	65.40	66.28
2860	NYSE	NPK	Fri, Sep 2, 2022	68.34	68.34	66.37	67.07
2859	NYSE	NPK	Thu, Sep 1, 2022	68.12	68.12	65.83	67.67
2858	NYSE	NPK	Wed, Aug 31, 2022	69.74	69.74	68.07	68.22
2857	NYSE	NPK	Tue, Aug 30, 2022	70.92	70.92	68.54	69.28
2856	NYSE	NPK	Mon, Aug 29, 2022	70.65	71.27	70.02	70.56
2855	NYSE	NPK	Fri, Aug 26, 2022	74.49	75.13	70.91	71.08
2854	NYSE	NPK	Thu, Aug 25, 2022	73.80	74.61	73.63	74.51
2853	NYSE	NPK	Wed, Aug 24, 2022	73.23	73.59	72.54	73.45
2852	NYSE	NPK	Tue, Aug 23, 2022	74.27	74.40	72.65	73.12
2851	NYSE	NPK	Mon, Aug 22, 2022	75.44	75.44	73.53	74.64
2850	NYSE	NPK	Fri, Aug 19, 2022	77.49	77.49	75.50	75.86
2849	NYSE	NPK	Thu, Aug 18, 2022	77.37	77.82	76.86	77.68
2848	NYSE	NPK	Wed, Aug 17, 2022	77.27	77.65	76.81	77.12
2847	NYSE	NPK	Tue, Aug 16, 2022	76.64	78.78	76.64	78.08
2846	NYSE	NPK	Mon, Aug 15, 2022	76.75	77.62	76.50	77.11
2845	NYSE	NPK	Fri, Aug 12, 2022	73.99	76.62	73.99	76.59
2844	NYSE	NPK	Thu, Aug 11, 2022	74.72	74.93	73.68	73.99
2843	NYSE	NPK	Wed, Aug 10, 2022	74.75	74.80	73.83	74.13
2842	NYSE	NPK	Tue, Aug 9, 2022	73.86	74.40	72.54	74.27
2841	NYSE	NPK	Mon, Aug 8, 2022	74.22	74.35	73.14	73.43
2840	NYSE	NPK	Fri, Aug 5, 2022	73.30	74.14	72.45	73.95
2839	NYSE	NPK	Thu, Aug 4, 2022	72.63	74.08	72.01	73.87
2838	NYSE	NPK	Wed, Aug 3, 2022	71.25	72.80	71.10	72.44
2837	NYSE	NPK	Tue, Aug 2, 2022	71.43	72.35	70.79	70.94
2836	NYSE	NPK	Mon, Aug 1, 2022	70.95	71.58	69.28	71.24
2835	NYSE	NPK	Fri, Jul 29, 2022	70.14	71.38	69.65	71.20
2834	NYSE	NPK	Thu, Jul 28, 2022	69.87	70.32	69.29	70.32
2833	NYSE	NPK	Wed, Jul 27, 2022	69.07	69.61	68.38	69.17
2832	NYSE	NPK	Tue, Jul 26, 2022	68.62	70.38	68.62	69.07
2831	NYSE	NPK	Mon, Jul 25, 2022	69.23	69.57	68.50	69.06
2830	NYSE	NPK	Fri, Jul 22, 2022	68.42	70.15	68.42	69.17
2829	NYSE	NPK	Thu, Jul 21, 2022	69.05	69.72	68.39	69.62
2828	NYSE	NPK	Wed, Jul 20, 2022	68.52	69.66	68.31	69.24
2827	NYSE	NPK	Tue, Jul 19, 2022	66.20	68.61	65.74	68.13
2826	NYSE	NPK	Mon, Jul 18, 2022	66.79	67.64	65.89	65.99
2825	NYSE	NPK	Fri, Jul 15, 2022	66.07	67.90	65.79	66.78
2824	NYSE	NPK	Thu, Jul 14, 2022	64.75	65.77	64.22	64.93
2823	NYSE	NPK	Wed, Jul 13, 2022	65.80	66.37	64.89	65.53
2822	NYSE	NPK	Tue, Jul 12, 2022	65.82	67.05	65.63	65.88
2821	NYSE	NPK	Mon, Jul 11, 2022	65.55	66.14	65.03	65.67
2820	NYSE	NPK	Fri, Jul 8, 2022	66.23	67.63	65.60	66.09
2819	NYSE	NPK	Thu, Jul 7, 2022	66.23	67.60	66.11	66.35
2818	NYSE	NPK	Wed, Jul 6, 2022	65.65	66.75	65.08	66.05
2817	NYSE	NPK	Tue, Jul 5, 2022	65.78	65.78	63.37	65.38
2816	NYSE	NPK	Fri, Jul 1, 2022	65.50	66.73	64.89	66.12
2815	NYSE	NPK	Thu, Jun 30, 2022	64.07	65.81	64.07	65.64
2814	NYSE	NPK	Wed, Jun 29, 2022	65.15	65.15	64.16	64.32
2813	NYSE	NPK	Tue, Jun 28, 2022	66.23	66.44	65.05	65.17
2812	NYSE	NPK	Mon, Jun 27, 2022	66.07	66.81	65.61	66.05
2811	NYSE	NPK	Fri, Jun 24, 2022	64.50	65.64	64.50	65.63
2810	NYSE	NPK	Thu, Jun 23, 2022	64.16	64.61	63.03	64.36
2809	NYSE	NPK	Wed, Jun 22, 2022	63.12	65.00	63.03	64.13
2808	NYSE	NPK	Tue, Jun 21, 2022	62.55	64.66	61.86	63.80
2807	NYSE	NPK	Fri, Jun 17, 2022	61.72	62.60	61.40	62.18
2806	NYSE	NPK	Thu, Jun 16, 2022	61.94	62.02	59.99	61.34
2805	NYSE	NPK	Wed, Jun 15, 2022	63.53	63.53	62.00	62.45
2804	NYSE	NPK	Tue, Jun 14, 2022	65.05	65.05	62.66	62.80
2803	NYSE	NPK	Mon, Jun 13, 2022	66.04	66.13	64.74	65.05
2802	NYSE	NPK	Fri, Jun 10, 2022	67.30	67.34	66.50	66.87
2801	NYSE	NPK	Thu, Jun 9, 2022	68.64	69.54	67.59	67.66
2800	NYSE	NPK	Wed, Jun 8, 2022	70.07	70.36	68.90	69.06
2799	NYSE	NPK	Tue, Jun 7, 2022	68.98	70.10	68.95	70.06
2798	NYSE	NPK	Mon, Jun 6, 2022	69.40	69.72	68.98	69.17
2797	NYSE	NPK	Fri, Jun 3, 2022	69.09	69.99	68.25	69.14
2796	NYSE	NPK	Thu, Jun 2, 2022	68.14	69.40	67.36	68.96
2795	NYSE	NPK	Wed, Jun 1, 2022	67.59	68.40	67.04	68.23
2794	NYSE	NPK	Tue, May 31, 2022	67.82	69.23	67.18	67.59
2793	NYSE	NPK	Fri, May 27, 2022	68.48	69.01	67.61	68.41
2792	NYSE	NPK	Thu, May 26, 2022	68.99	69.57	68.01	68.01
2791	NYSE	NPK	Wed, May 25, 2022	68.89	69.52	67.73	68.34
2790	NYSE	NPK	Tue, May 24, 2022	68.21	69.55	67.09	69.16
2789	NYSE	NPK	Mon, May 23, 2022	66.53	68.89	66.19	68.33
2788	NYSE	NPK	Fri, May 20, 2022	69.86	69.86	65.54	66.11
2787	NYSE	NPK	Thu, May 19, 2022	70.33	70.70	69.16	69.25
2786	NYSE	NPK	Wed, May 18, 2022	72.24	72.70	70.62	71.12
2785	NYSE	NPK	Tue, May 17, 2022	71.69	73.43	71.56	72.42
2784	NYSE	NPK	Mon, May 16, 2022	70.32	71.92	70.29	71.08
2783	NYSE	NPK	Fri, May 13, 2022	70.20	70.48	68.87	70.06
2782	NYSE	NPK	Thu, May 12, 2022	70.50	71.15	69.14	70.06
2781	NYSE	NPK	Wed, May 11, 2022	71.28	72.53	70.23	70.53
2780	NYSE	NPK	Tue, May 10, 2022	73.36	73.90	70.95	71.32
2779	NYSE	NPK	Mon, May 9, 2022	72.47	73.25	71.80	72.83
2778	NYSE	NPK	Fri, May 6, 2022	73.13	73.46	72.07	72.90
2777	NYSE	NPK	Thu, May 5, 2022	74.08	74.26	72.77	73.49
2776	NYSE	NPK	Wed, May 4, 2022	73.34	74.65	73.33	74.60
2775	NYSE	NPK	Tue, May 3, 2022	72.24	73.58	71.46	73.09
2774	NYSE	NPK	Mon, May 2, 2022	70.60	72.61	70.60	72.14
2773	NYSE	NPK	Fri, Apr 29, 2022	73.37	74.18	71.11	71.13
2772	NYSE	NPK	Thu, Apr 28, 2022	74.77	74.79	73.42	74.03
2771	NYSE	NPK	Wed, Apr 27, 2022	76.19	76.48	73.81	74.02
2770	NYSE	NPK	Tue, Apr 26, 2022	76.62	77.24	75.77	75.78
2769	NYSE	NPK	Mon, Apr 25, 2022	76.41	77.49	74.84	76.93
2768	NYSE	NPK	Fri, Apr 22, 2022	78.26	78.74	76.58	76.59
2767	NYSE	NPK	Thu, Apr 21, 2022	79.25	79.31	78.00	78.10
2766	NYSE	NPK	Wed, Apr 20, 2022	77.70	78.99	77.64	78.48
2765	NYSE	NPK	Tue, Apr 19, 2022	77.66	78.46	77.29	77.34
2764	NYSE	NPK	Mon, Apr 18, 2022	77.26	78.40	77.15	77.58
2763	NYSE	NPK	Thu, Apr 14, 2022	78.14	78.48	77.11	77.50
2762	NYSE	NPK	Wed, Apr 13, 2022	76.87	77.90	76.72	77.64
2761	NYSE	NPK	Tue, Apr 12, 2022	76.90	77.71	76.57	77.02
2760	NYSE	NPK	Mon, Apr 11, 2022	77.51	77.85	76.00	76.47
2759	NYSE	NPK	Fri, Apr 8, 2022	79.11	79.19	77.17	77.35
2758	NYSE	NPK	Thu, Apr 7, 2022	77.17	79.03	76.79	78.91
2757	NYSE	NPK	Wed, Apr 6, 2022	78.02	78.76	77.15	77.37
2756	NYSE	NPK	Tue, Apr 5, 2022	77.86	79.06	77.86	78.32
2755	NYSE	NPK	Mon, Apr 4, 2022	77.75	78.32	76.76	78.32
2754	NYSE	NPK	Fri, Apr 1, 2022	77.39	78.29	76.95	78.20
2753	NYSE	NPK	Thu, Mar 31, 2022	77.79	78.14	76.80	76.95
2752	NYSE	NPK	Wed, Mar 30, 2022	78.30	79.39	77.84	78.16
2751	NYSE	NPK	Tue, Mar 29, 2022	76.96	78.74	76.96	78.59
2750	NYSE	NPK	Mon, Mar 28, 2022	78.81	79.50	76.40	77.20
2749	NYSE	NPK	Fri, Mar 25, 2022	79.09	80.00	78.51	79.27
2748	NYSE	NPK	Thu, Mar 24, 2022	77.27	79.64	77.09	79.60
2747	NYSE	NPK	Wed, Mar 23, 2022	77.58	77.75	77.14	77.66
2746	NYSE	NPK	Tue, Mar 22, 2022	77.98	78.36	77.26	77.93
2745	NYSE	NPK	Mon, Mar 21, 2022	77.01	78.40	77.01	77.81
2744	NYSE	NPK	Fri, Mar 18, 2022	79.43	79.83	77.07	77.08
2743	NYSE	NPK	Thu, Mar 17, 2022	77.22	79.84	77.22	79.27
2742	NYSE	NPK	Wed, Mar 16, 2022	79.76	80.49	77.14	77.64
2741	NYSE	NPK	Tue, Mar 15, 2022	80.23	80.51	78.51	79.62
2740	NYSE	NPK	Mon, Mar 14, 2022	80.26	80.49	79.43	80.04
2739	NYSE	NPK	Fri, Mar 11, 2022	80.03	80.31	79.41	79.63
2738	NYSE	NPK	Thu, Mar 10, 2022	78.09	79.63	78.09	79.51
2737	NYSE	NPK	Wed, Mar 9, 2022	79.86	80.13	78.31	78.71
2736	NYSE	NPK	Tue, Mar 8, 2022	81.37	81.52	79.03	79.05
2735	NYSE	NPK	Mon, Mar 7, 2022	81.35	82.00	80.43	81.10
2734	NYSE	NPK	Fri, Mar 4, 2022	80.31	81.49	79.84	81.35
2733	NYSE	NPK	Thu, Mar 3, 2022	79.28	81.13	78.72	81.10
2732	NYSE	NPK	Wed, Mar 2, 2022	79.39	79.42	76.92	78.97
2731	NYSE	NPK	Tue, Mar 1, 2022	79.58	80.00	78.07	79.42
2730	NYSE	NPK	Mon, Feb 28, 2022	76.48	80.39	76.48	79.50
2729	NYSE	NPK	Fri, Feb 25, 2022	80.95	84.45	80.65	79.00
2728	NYSE	NPK	Thu, Feb 24, 2022	76.84	80.94	76.40	80.35
2727	NYSE	NPK	Wed, Feb 23, 2022	77.94	78.85	77.30	77.42
2726	NYSE	NPK	Tue, Feb 22, 2022	79.51	79.51	77.17	77.29
2725	NYSE	NPK	Fri, Feb 18, 2022	82.04	82.47	78.85	79.16
2724	NYSE	NPK	Thu, Feb 17, 2022	83.19	83.19	81.49	82.12
2723	NYSE	NPK	Wed, Feb 16, 2022	82.01	83.45	81.49	83.19
2722	NYSE	NPK	Tue, Feb 15, 2022	82.01	83.06	81.93	82.01
2721	NYSE	NPK	Mon, Feb 14, 2022	82.31	82.99	81.45	82.23
2720	NYSE	NPK	Fri, Feb 11, 2022	81.55	82.98	81.55	82.74
2719	NYSE	NPK	Thu, Feb 10, 2022	80.91	82.24	80.85	81.29
2718	NYSE	NPK	Wed, Feb 9, 2022	82.76	82.83	81.30	81.38
2717	NYSE	NPK	Tue, Feb 8, 2022	82.21	82.89	82.05	82.77
2716	NYSE	NPK	Mon, Feb 7, 2022	82.00	82.69	81.50	81.88
2715	NYSE	NPK	Fri, Feb 4, 2022	82.12	82.45	80.77	81.85
2714	NYSE	NPK	Thu, Feb 3, 2022	82.53	82.97	82.00	82.03
2713	NYSE	NPK	Wed, Feb 2, 2022	82.79	83.72	81.85	82.40
2712	NYSE	NPK	Tue, Feb 1, 2022	82.31	83.14	81.51	82.71
2711	NYSE	NPK	Mon, Jan 31, 2022	82.00	82.79	81.08	82.25
2710	NYSE	NPK	Fri, Jan 28, 2022	81.53	82.21	80.25	82.09
2709	NYSE	NPK	Thu, Jan 27, 2022	82.02	82.98	80.72	81.52
2708	NYSE	NPK	Wed, Jan 26, 2022	84.11	84.47	81.45	82.02
2707	NYSE	NPK	Tue, Jan 25, 2022	83.11	83.85	81.88	83.36
2706	NYSE	NPK	Mon, Jan 24, 2022	82.49	83.90	82.00	83.53
2705	NYSE	NPK	Fri, Jan 21, 2022	82.07	84.12	82.07	82.62
2704	NYSE	NPK	Thu, Jan 20, 2022	85.27	85.76	82.50	82.72
2703	NYSE	NPK	Wed, Jan 19, 2022	87.25	87.25	84.55	84.73
2702	NYSE	NPK	Tue, Jan 18, 2022	87.74	89.05	87.03	87.06
2701	NYSE	NPK	Fri, Jan 14, 2022	85.32	87.71	84.49	87.55
2700	NYSE	NPK	Thu, Jan 13, 2022	83.48	86.26	83.44	85.32
2699	NYSE	NPK	Wed, Jan 12, 2022	82.42	84.27	81.96	83.65
2698	NYSE	NPK	Tue, Jan 11, 2022	83.42	83.58	81.90	82.55
2697	NYSE	NPK	Mon, Jan 10, 2022	82.99	84.06	82.87	83.25
2696	NYSE	NPK	Fri, Jan 7, 2022	83.36	83.88	83.16	83.52
2695	NYSE	NPK	Thu, Jan 6, 2022	83.75	83.75	82.78	83.39
2694	NYSE	NPK	Wed, Jan 5, 2022	83.93	84.67	83.17	83.80
2693	NYSE	NPK	Tue, Jan 4, 2022	83.11	83.93	83.11	83.58
2692	NYSE	NPK	Mon, Jan 3, 2022	82.00	83.10	81.93	82.77
2691	NYSE	NPK	Fri, Dec 31, 2021	82.10	82.12	81.50	82.03
2690	NYSE	NPK	Thu, Dec 30, 2021	81.89	82.52	81.56	81.87
2689	NYSE	NPK	Wed, Dec 29, 2021	81.58	82.37	81.27	82.02
2688	NYSE	NPK	Tue, Dec 28, 2021	82.08	82.38	81.52	81.67
2687	NYSE	NPK	Mon, Dec 27, 2021	82.08	82.30	81.41	82.08
2686	NYSE	NPK	Thu, Dec 23, 2021	82.04	83.15	81.63	82.22
2685	NYSE	NPK	Wed, Dec 22, 2021	81.28	81.88	81.05	81.50
2684	NYSE	NPK	Tue, Dec 21, 2021	80.76	82.28	80.76	81.59
2683	NYSE	NPK	Mon, Dec 20, 2021	80.55	80.79	78.33	80.11
2682	NYSE	NPK	Fri, Dec 17, 2021	83.22	83.68	81.10	81.10
2681	NYSE	NPK	Thu, Dec 16, 2021	82.87	84.46	82.66	83.44
2680	NYSE	NPK	Wed, Dec 15, 2021	82.18	83.69	81.74	82.84
2679	NYSE	NPK	Tue, Dec 14, 2021	82.00	84.66	82.00	82.18
2678	NYSE	NPK	Mon, Dec 13, 2021	83.23	83.54	82.12	82.87
2677	NYSE	NPK	Fri, Dec 10, 2021	83.28	83.28	82.51	82.67
2676	NYSE	NPK	Thu, Dec 9, 2021	83.03	83.13	82.47	82.70
2675	NYSE	NPK	Wed, Dec 8, 2021	81.90	83.55	81.90	83.37
2674	NYSE	NPK	Tue, Dec 7, 2021	83.30	83.84	81.99	82.22
2673	NYSE	NPK	Mon, Dec 6, 2021	82.86	83.50	82.40	82.93
2672	NYSE	NPK	Fri, Dec 3, 2021	83.50	83.50	81.81	82.16
2671	NYSE	NPK	Thu, Dec 2, 2021	81.50	83.55	81.50	82.76
2670	NYSE	NPK	Wed, Dec 1, 2021	83.44	83.44	81.26	81.27
2669	NYSE	NPK	Tue, Nov 30, 2021	82.13	83.32	81.75	81.78
2668	NYSE	NPK	Mon, Nov 29, 2021	84.11	84.11	82.00	82.63
2667	NYSE	NPK	Fri, Nov 26, 2021	83.66	83.75	81.25	82.87
2666	NYSE	NPK	Wed, Nov 24, 2021	86.55	87.19	84.45	84.86
2665	NYSE	NPK	Tue, Nov 23, 2021	87.20	87.47	86.50	86.50
2664	NYSE	NPK	Mon, Nov 22, 2021	86.68	88.73	86.50	87.05
2663	NYSE	NPK	Fri, Nov 19, 2021	86.16	87.32	85.70	86.42
2662	NYSE	NPK	Thu, Nov 18, 2021	87.09	87.11	85.53	86.93
2661	NYSE	NPK	Wed, Nov 17, 2021	87.98	87.98	86.18	87.08
2660	NYSE	NPK	Tue, Nov 16, 2021	88.27	88.79	86.95	88.51
2659	NYSE	NPK	Mon, Nov 15, 2021	89.50	89.50	87.90	88.46
2658	NYSE	NPK	Fri, Nov 12, 2021	87.70	89.49	87.56	89.45
2657	NYSE	NPK	Thu, Nov 11, 2021	86.78	88.13	85.80	87.67
2656	NYSE	NPK	Wed, Nov 10, 2021	87.48	87.89	85.93	86.30
2655	NYSE	NPK	Tue, Nov 9, 2021	87.98	89.25	87.10	87.62
2654	NYSE	NPK	Mon, Nov 8, 2021	88.50	88.98	87.66	88.25
2653	NYSE	NPK	Fri, Nov 5, 2021	87.02	88.32	86.01	88.32
2652	NYSE	NPK	Thu, Nov 4, 2021	86.97	87.58	85.83	86.46
2651	NYSE	NPK	Wed, Nov 3, 2021	84.88	87.64	84.46	86.78
2650	NYSE	NPK	Tue, Nov 2, 2021	84.18	85.75	83.30	85.35
2649	NYSE	NPK	Mon, Nov 1, 2021	82.88	84.74	82.50	84.42
2648	NYSE	NPK	Fri, Oct 29, 2021	82.57	83.86	82.57	83.15
2647	NYSE	NPK	Thu, Oct 28, 2021	82.62	83.72	82.35	82.69
2646	NYSE	NPK	Wed, Oct 27, 2021	81.63	83.23	81.00	82.30
2645	NYSE	NPK	Tue, Oct 26, 2021	83.53	83.80	81.56	81.64
2644	NYSE	NPK	Mon, Oct 25, 2021	83.12	83.78	83.12	83.54
2643	NYSE	NPK	Fri, Oct 22, 2021	83.79	83.98	82.55	83.24
2642	NYSE	NPK	Thu, Oct 21, 2021	84.08	84.74	83.27	83.47
2641	NYSE	NPK	Wed, Oct 20, 2021	83.08	84.52	83.00	84.50
2640	NYSE	NPK	Tue, Oct 19, 2021	82.90	83.92	82.06	83.41
2639	NYSE	NPK	Mon, Oct 18, 2021	82.88	83.91	82.70	83.23
2638	NYSE	NPK	Fri, Oct 15, 2021	84.77	84.90	82.91	83.00
2637	NYSE	NPK	Thu, Oct 14, 2021	82.48	83.73	82.31	83.59
2636	NYSE	NPK	Wed, Oct 13, 2021	83.12	83.32	82.01	82.35
2635	NYSE	NPK	Tue, Oct 12, 2021	82.88	84.80	82.50	83.10
2634	NYSE	NPK	Mon, Oct 11, 2021	83.00	83.63	82.81	82.81
2633	NYSE	NPK	Fri, Oct 8, 2021	82.54	83.74	82.51	82.96
2632	NYSE	NPK	Thu, Oct 7, 2021	82.23	83.21	82.18	82.69
2631	NYSE	NPK	Wed, Oct 6, 2021	82.83	82.83	81.50	82.01
2630	NYSE	NPK	Tue, Oct 5, 2021	82.51	84.41	82.51	83.19
2629	NYSE	NPK	Mon, Oct 4, 2021	83.45	84.12	82.55	82.73
2628	NYSE	NPK	Fri, Oct 1, 2021	82.95	84.21	82.48	83.41
2627	NYSE	NPK	Thu, Sep 30, 2021	83.55	85.17	82.00	82.08
2626	NYSE	NPK	Wed, Sep 29, 2021	83.00	83.45	82.00	82.90
2625	NYSE	NPK	Tue, Sep 28, 2021	83.18	83.98	81.80	82.26
2624	NYSE	NPK	Mon, Sep 27, 2021	82.86	84.89	82.86	83.23
2623	NYSE	NPK	Fri, Sep 24, 2021	82.18	83.25	82.18	82.86
2622	NYSE	NPK	Thu, Sep 23, 2021	82.36	82.99	81.98	82.13
2621	NYSE	NPK	Wed, Sep 22, 2021	82.00	82.32	81.24	81.91
2620	NYSE	NPK	Tue, Sep 21, 2021	81.76	82.00	80.95	81.24
2619	NYSE	NPK	Mon, Sep 20, 2021	81.16	81.83	80.37	81.31
2618	NYSE	NPK	Fri, Sep 17, 2021	81.88	83.32	80.20	82.66
2617	NYSE	NPK	Thu, Sep 16, 2021	82.38	82.80	81.25	82.00
2616	NYSE	NPK	Wed, Sep 15, 2021	81.96	82.83	80.71	82.61
2615	NYSE	NPK	Tue, Sep 14, 2021	82.18	82.18	80.20	81.96
2614	NYSE	NPK	Mon, Sep 13, 2021	81.83	82.34	79.78	82.34
2613	NYSE	NPK	Fri, Sep 10, 2021	83.08	83.08	80.67	80.95
2612	NYSE	NPK	Thu, Sep 9, 2021	82.10	83.86	82.10	82.16
2611	NYSE	NPK	Wed, Sep 8, 2021	84.34	85.60	81.80	81.90
2610	NYSE	NPK	Tue, Sep 7, 2021	85.27	85.41	83.81	84.64
2609	NYSE	NPK	Fri, Sep 3, 2021	86.46	86.79	84.39	84.82
2608	NYSE	NPK	Thu, Sep 2, 2021	86.27	87.46	84.51	86.58
2607	NYSE	NPK	Wed, Sep 1, 2021	84.31	86.67	84.19	86.58
2606	NYSE	NPK	Tue, Aug 31, 2021	85.50	85.88	83.54	83.54
2605	NYSE	NPK	Mon, Aug 30, 2021	86.21	86.60	85.59	85.78
2604	NYSE	NPK	Fri, Aug 27, 2021	84.80	86.66	84.80	85.62
2603	NYSE	NPK	Thu, Aug 26, 2021	85.59	85.92	84.10	84.10
2602	NYSE	NPK	Wed, Aug 25, 2021	86.16	87.93	85.15	85.15
2601	NYSE	NPK	Tue, Aug 24, 2021	87.17	88.50	86.67	87.50
2600	NYSE	NPK	Mon, Aug 23, 2021	86.20	89.15	85.87	87.63
2599	NYSE	NPK	Fri, Aug 20, 2021	83.52	86.30	83.22	85.87
2598	NYSE	NPK	Thu, Aug 19, 2021	85.66	86.39	83.24	83.93
2597	NYSE	NPK	Wed, Aug 18, 2021	88.58	88.94	85.80	86.85
2596	NYSE	NPK	Tue, Aug 17, 2021	88.25	89.70	88.17	88.76
2595	NYSE	NPK	Mon, Aug 16, 2021	90.36	90.36	88.35	88.73
2594	NYSE	NPK	Fri, Aug 13, 2021	91.50	91.59	90.07	90.37
2593	NYSE	NPK	Thu, Aug 12, 2021	91.50	91.68	90.53	91.47
2592	NYSE	NPK	Wed, Aug 11, 2021	91.35	92.41	90.87	92.17
2591	NYSE	NPK	Tue, Aug 10, 2021	90.88	92.43	90.10	91.33
2590	NYSE	NPK	Mon, Aug 9, 2021	90.12	92.50	90.08	91.12
2589	NYSE	NPK	Fri, Aug 6, 2021	90.57	90.82	88.73	89.28
2588	NYSE	NPK	Thu, Aug 5, 2021	90.42	91.35	89.14	90.19
2587	NYSE	NPK	Wed, Aug 4, 2021	92.16	92.16	90.00	90.04
2586	NYSE	NPK	Tue, Aug 3, 2021	92.38	93.70	91.03	93.70
2585	NYSE	NPK	Mon, Aug 2, 2021	97.23	98.89	91.39	92.20
2584	NYSE	NPK	Fri, Jul 30, 2021	95.42	97.37	94.01	96.48
2583	NYSE	NPK	Thu, Jul 29, 2021	95.00	96.61	95.00	95.48
2582	NYSE	NPK	Wed, Jul 28, 2021	95.96	95.96	94.55	94.76
2581	NYSE	NPK	Tue, Jul 27, 2021	95.74	95.86	94.31	95.25
2580	NYSE	NPK	Mon, Jul 26, 2021	97.50	97.50	95.01	95.01
2579	NYSE	NPK	Fri, Jul 23, 2021	98.12	98.99	97.51	97.64
2578	NYSE	NPK	Thu, Jul 22, 2021	97.83	98.10	96.70	96.70
2577	NYSE	NPK	Wed, Jul 21, 2021	98.52	100.06	98.44	98.44
2576	NYSE	NPK	Tue, Jul 20, 2021	95.99	99.92	95.99	97.66
2575	NYSE	NPK	Mon, Jul 19, 2021	95.28	96.74	93.30	95.09
2574	NYSE	NPK	Fri, Jul 16, 2021	97.69	98.09	96.23	96.28
2573	NYSE	NPK	Thu, Jul 15, 2021	97.64	98.00	96.51	96.88
2572	NYSE	NPK	Wed, Jul 14, 2021	99.61	99.61	97.40	97.59
2571	NYSE	NPK	Tue, Jul 13, 2021	99.00	100.48	97.89	98.47
2570	NYSE	NPK	Mon, Jul 12, 2021	100.54	100.54	99.49	99.49
2569	NYSE	NPK	Fri, Jul 9, 2021	98.99	100.51	97.69	100.51
2568	NYSE	NPK	Thu, Jul 8, 2021	98.40	98.95	97.12	97.66
2567	NYSE	NPK	Wed, Jul 7, 2021	100.90	101.63	99.86	100.73
2566	NYSE	NPK	Tue, Jul 6, 2021	101.89	103.44	98.02	100.45
2565	NYSE	NPK	Fri, Jul 2, 2021	102.91	103.69	101.01	101.48
2564	NYSE	NPK	Thu, Jul 1, 2021	102.39	103.41	102.39	102.95
2563	NYSE	NPK	Wed, Jun 30, 2021	100.80	102.93	100.80	101.65
2562	NYSE	NPK	Tue, Jun 29, 2021	102.11	102.42	101.20	101.35
2561	NYSE	NPK	Mon, Jun 28, 2021	102.24	102.37	100.62	101.52
2560	NYSE	NPK	Fri, Jun 25, 2021	99.90	103.25	99.90	103.25
2559	NYSE	NPK	Thu, Jun 24, 2021	100.99	102.20	100.07	102.05
2558	NYSE	NPK	Wed, Jun 23, 2021	98.54	102.03	97.65	100.58
2557	NYSE	NPK	Tue, Jun 22, 2021	99.33	100.59	98.05	99.08
2556	NYSE	NPK	Mon, Jun 21, 2021	98.61	100.52	98.38	100.23
2555	NYSE	NPK	Fri, Jun 18, 2021	99.02	99.62	97.03	97.69
2554	NYSE	NPK	Thu, Jun 17, 2021	102.22	102.22	100.27	101.00
2553	NYSE	NPK	Wed, Jun 16, 2021	103.67	104.08	102.46	102.62
2552	NYSE	NPK	Tue, Jun 15, 2021	102.05	103.94	101.09	102.59
2551	NYSE	NPK	Mon, Jun 14, 2021	102.09	103.16	101.11	101.45
2550	NYSE	NPK	Fri, Jun 11, 2021	100.66	101.57	100.66	101.57
2549	NYSE	NPK	Thu, Jun 10, 2021	99.95	101.40	98.78	101.00
2548	NYSE	NPK	Wed, Jun 9, 2021	100.00	100.67	98.95	100.04
2547	NYSE	NPK	Tue, Jun 8, 2021	98.78	100.76	98.75	99.96
2546	NYSE	NPK	Mon, Jun 7, 2021	99.61	99.61	97.97	98.07
2545	NYSE	NPK	Fri, Jun 4, 2021	100.13	101.38	99.09	99.09
2544	NYSE	NPK	Thu, Jun 3, 2021	99.72	100.52	98.63	99.70
2543	NYSE	NPK	Wed, Jun 2, 2021	102.12	102.12	99.09	99.09
2542	NYSE	NPK	Tue, Jun 1, 2021	102.35	102.71	100.64	101.55
2541	NYSE	NPK	Fri, May 28, 2021	103.05	103.05	100.53	101.42
2540	NYSE	NPK	Thu, May 27, 2021	102.88	104.63	101.87	101.87
2539	NYSE	NPK	Wed, May 26, 2021	100.88	102.58	100.88	102.57
2538	NYSE	NPK	Tue, May 25, 2021	104.11	104.11	100.26	101.02
2537	NYSE	NPK	Mon, May 24, 2021	105.53	105.55	103.01	103.21
2536	NYSE	NPK	Fri, May 21, 2021	104.51	106.76	103.51	104.41
2535	NYSE	NPK	Thu, May 20, 2021	103.94	103.94	102.26	103.24
2534	NYSE	NPK	Wed, May 19, 2021	104.60	105.53	102.68	103.48
2533	NYSE	NPK	Tue, May 18, 2021	107.37	107.37	104.76	104.76
2532	NYSE	NPK	Mon, May 17, 2021	107.01	107.89	105.94	107.11
2531	NYSE	NPK	Fri, May 14, 2021	105.92	107.89	105.60	107.89
2530	NYSE	NPK	Thu, May 13, 2021	102.50	106.50	102.50	106.50
2529	NYSE	NPK	Wed, May 12, 2021	104.05	104.74	101.95	102.67
2528	NYSE	NPK	Tue, May 11, 2021	103.17	105.01	102.69	105.01
2527	NYSE	NPK	Mon, May 10, 2021	104.03	105.21	103.39	103.40
2526	NYSE	NPK	Fri, May 7, 2021	105.12	105.12	102.76	104.00
2525	NYSE	NPK	Thu, May 6, 2021	103.39	105.37	103.09	105.09
2524	NYSE	NPK	Wed, May 5, 2021	102.46	103.95	102.24	102.52
2523	NYSE	NPK	Tue, May 4, 2021	103.24	103.42	102.62	102.63
2522	NYSE	NPK	Mon, May 3, 2021	103.12	104.54	102.85	104.40
2521	NYSE	NPK	Fri, Apr 30, 2021	104.04	105.51	102.71	102.88
2520	NYSE	NPK	Thu, Apr 29, 2021	105.20	105.74	104.03	105.31
2519	NYSE	NPK	Wed, Apr 28, 2021	104.59	104.79	103.80	104.70
2518	NYSE	NPK	Tue, Apr 27, 2021	105.74	105.74	103.27	104.55
2517	NYSE	NPK	Mon, Apr 26, 2021	106.06	106.06	104.29	104.66
2516	NYSE	NPK	Fri, Apr 23, 2021	103.83	105.94	103.83	105.10
2515	NYSE	NPK	Thu, Apr 22, 2021	105.88	105.88	103.62	103.62
2514	NYSE	NPK	Wed, Apr 21, 2021	104.58	105.92	104.58	104.94
2513	NYSE	NPK	Tue, Apr 20, 2021	106.89	106.89	103.66	104.01
2512	NYSE	NPK	Mon, Apr 19, 2021	107.22	107.57	105.01	106.59
2511	NYSE	NPK	Fri, Apr 16, 2021	107.54	107.71	105.58	107.04
2510	NYSE	NPK	Thu, Apr 15, 2021	107.18	107.29	105.87	107.25
2509	NYSE	NPK	Wed, Apr 14, 2021	107.33	107.52	106.48	107.18
2508	NYSE	NPK	Tue, Apr 13, 2021	107.00	107.81	105.94	107.33
2507	NYSE	NPK	Mon, Apr 12, 2021	105.70	107.80	105.04	106.82
2506	NYSE	NPK	Fri, Apr 9, 2021	104.37	106.39	104.37	105.69
2505	NYSE	NPK	Thu, Apr 8, 2021	101.84	104.72	101.51	104.72
2504	NYSE	NPK	Wed, Apr 7, 2021	102.89	102.89	101.13	101.82
2503	NYSE	NPK	Tue, Apr 6, 2021	103.52	104.66	101.70	102.15
2502	NYSE	NPK	Mon, Apr 5, 2021	103.08	103.78	101.31	102.88
2501	NYSE	NPK	Thu, Apr 1, 2021	102.88	102.88	101.53	102.64
2500	NYSE	NPK	Wed, Mar 31, 2021	102.03	102.67	101.04	102.07
2499	NYSE	NPK	Tue, Mar 30, 2021	101.02	102.35	100.89	101.92
2498	NYSE	NPK	Mon, Mar 29, 2021	102.69	103.00	99.91	100.89
2497	NYSE	NPK	Fri, Mar 26, 2021	99.47	102.34	98.85	100.71
2496	NYSE	NPK	Thu, Mar 25, 2021	98.50	100.00	97.03	97.46
2495	NYSE	NPK	Wed, Mar 24, 2021	98.73	102.01	98.00	98.28
2494	NYSE	NPK	Tue, Mar 23, 2021	99.91	99.91	97.70	98.17
2493	NYSE	NPK	Mon, Mar 22, 2021	103.20	103.31	99.83	101.23
2492	NYSE	NPK	Fri, Mar 19, 2021	102.31	102.67	100.60	102.09
2491	NYSE	NPK	Thu, Mar 18, 2021	102.44	104.66	101.31	102.32
2490	NYSE	NPK	Wed, Mar 17, 2021	103.00	103.00	100.51	102.10
2489	NYSE	NPK	Tue, Mar 16, 2021	105.34	105.34	101.73	102.20
2488	NYSE	NPK	Mon, Mar 15, 2021	104.01	104.94	103.52	104.77
2487	NYSE	NPK	Fri, Mar 12, 2021	104.75	106.55	102.47	105.12
2486	NYSE	NPK	Thu, Mar 11, 2021	106.71	106.71	102.46	103.78
2485	NYSE	NPK	Wed, Mar 10, 2021	103.39	106.17	101.40	105.78
2484	NYSE	NPK	Tue, Mar 9, 2021	105.56	105.95	102.18	102.19
2483	NYSE	NPK	Mon, Mar 8, 2021	103.39	107.09	101.73	107.09
2482	NYSE	NPK	Fri, Mar 5, 2021	100.22	102.60	99.22	102.60
2481	NYSE	NPK	Thu, Mar 4, 2021	101.58	103.44	97.52	99.29
2480	NYSE	NPK	Wed, Mar 3, 2021	100.25	104.00	100.25	102.03
2479	NYSE	NPK	Tue, Mar 2, 2021	101.55	102.30	99.00	100.15
2478	NYSE	NPK	Mon, Mar 1, 2021	102.38	104.97	100.05	101.55
2477	NYSE	NPK	Fri, Feb 26, 2021	109.39	109.39	99.82	102.33
2476	NYSE	NPK	Thu, Feb 25, 2021	115.72	116.75	110.05	106.97
2475	NYSE	NPK	Wed, Feb 24, 2021	109.50	117.87	108.03	117.87
2474	NYSE	NPK	Tue, Feb 23, 2021	105.96	109.32	104.45	108.42
2473	NYSE	NPK	Mon, Feb 22, 2021	99.01	106.00	98.77	106.00
2472	NYSE	NPK	Fri, Feb 19, 2021	94.25	97.78	94.25	97.78
2471	NYSE	NPK	Thu, Feb 18, 2021	96.49	97.69	93.92	93.92
2470	NYSE	NPK	Wed, Feb 17, 2021	96.25	98.09	95.00	96.14
2469	NYSE	NPK	Tue, Feb 16, 2021	97.27	98.77	95.00	97.04
2468	NYSE	NPK	Fri, Feb 12, 2021	96.06	97.26	95.56	96.97
2467	NYSE	NPK	Thu, Feb 11, 2021	98.06	98.52	95.88	96.55
2466	NYSE	NPK	Wed, Feb 10, 2021	98.53	99.00	97.45	97.66
2465	NYSE	NPK	Tue, Feb 9, 2021	98.75	100.00	97.73	97.80
2464	NYSE	NPK	Mon, Feb 8, 2021	94.21	98.74	94.21	98.74
2463	NYSE	NPK	Fri, Feb 5, 2021	95.95	96.13	93.82	94.21
2462	NYSE	NPK	Thu, Feb 4, 2021	95.03	96.00	94.50	95.91
2461	NYSE	NPK	Wed, Feb 3, 2021	94.47	96.27	93.79	95.93
2460	NYSE	NPK	Tue, Feb 2, 2021	93.98	94.21	92.77	93.93
2459	NYSE	NPK	Mon, Feb 1, 2021	89.61	93.12	88.95	92.41
2458	NYSE	NPK	Fri, Jan 29, 2021	91.94	92.06	89.37	89.41
2457	NYSE	NPK	Thu, Jan 28, 2021	93.61	94.53	90.27	92.03
2456	NYSE	NPK	Wed, Jan 27, 2021	94.28	95.97	92.19	92.90
2455	NYSE	NPK	Tue, Jan 26, 2021	96.19	96.53	94.52	96.01
2454	NYSE	NPK	Mon, Jan 25, 2021	95.53	97.45	94.75	96.30
2453	NYSE	NPK	Fri, Jan 22, 2021	91.71	96.50	91.53	96.50
2452	NYSE	NPK	Thu, Jan 21, 2021	92.60	93.35	90.60	92.94
2451	NYSE	NPK	Wed, Jan 20, 2021	92.18	93.77	91.75	92.60
2450	NYSE	NPK	Tue, Jan 19, 2021	93.91	94.64	91.66	92.46
2449	NYSE	NPK	Fri, Jan 15, 2021	93.39	94.05	92.07	92.84
2448	NYSE	NPK	Thu, Jan 14, 2021	93.71	94.99	92.97	94.08
2447	NYSE	NPK	Wed, Jan 13, 2021	94.46	94.61	92.18	92.38
2446	NYSE	NPK	Tue, Jan 12, 2021	92.40	94.99	92.40	94.65
2445	NYSE	NPK	Mon, Jan 11, 2021	91.66	93.47	91.66	92.32
2444	NYSE	NPK	Fri, Jan 8, 2021	96.00	96.00	91.03	91.14
2443	NYSE	NPK	Thu, Jan 7, 2021	95.75	96.97	95.08	95.45
2442	NYSE	NPK	Wed, Jan 6, 2021	89.31	95.62	89.31	94.76
2441	NYSE	NPK	Tue, Jan 5, 2021	88.13	88.74	86.85	88.30
2440	NYSE	NPK	Mon, Jan 4, 2021	88.37	88.37	86.66	87.35
2439	NYSE	NPK	Thu, Dec 31, 2020	87.79	88.73	86.80	88.43
2438	NYSE	NPK	Wed, Dec 30, 2020	87.27	88.05	87.20	87.55
2437	NYSE	NPK	Tue, Dec 29, 2020	91.00	91.00	86.67	87.36
2436	NYSE	NPK	Mon, Dec 28, 2020	88.52	89.54	88.30	89.29
2435	NYSE	NPK	Thu, Dec 24, 2020	88.18	88.18	87.28	87.82
2434	NYSE	NPK	Wed, Dec 23, 2020	87.17	88.06	86.85	87.86
2433	NYSE	NPK	Tue, Dec 22, 2020	87.34	88.35	86.94	87.12
2432	NYSE	NPK	Mon, Dec 21, 2020	88.24	88.68	87.24	87.82
2431	NYSE	NPK	Fri, Dec 18, 2020	89.94	90.91	89.14	89.54
2430	NYSE	NPK	Thu, Dec 17, 2020	90.00	90.20	89.29	89.66
2429	NYSE	NPK	Wed, Dec 16, 2020	91.44	91.44	89.53	89.77
2428	NYSE	NPK	Tue, Dec 15, 2020	89.83	91.59	89.70	91.01
2427	NYSE	NPK	Mon, Dec 14, 2020	90.90	92.00	89.50	89.50
2426	NYSE	NPK	Fri, Dec 11, 2020	89.57	92.12	89.57	90.30
2425	NYSE	NPK	Thu, Dec 10, 2020	91.15	92.36	89.57	89.57
2424	NYSE	NPK	Wed, Dec 9, 2020	93.24	94.30	91.44	91.44
2423	NYSE	NPK	Tue, Dec 8, 2020	89.50	92.95	89.50	92.22
2422	NYSE	NPK	Mon, Dec 7, 2020	90.32	90.75	89.43	89.68
2421	NYSE	NPK	Fri, Dec 4, 2020	88.44	90.75	88.30	89.99
2420	NYSE	NPK	Thu, Dec 3, 2020	86.40	88.40	86.40	87.43
2419	NYSE	NPK	Wed, Dec 2, 2020	85.51	86.41	84.51	85.67
2418	NYSE	NPK	Tue, Dec 1, 2020	86.32	87.77	85.51	85.67
2417	NYSE	NPK	Mon, Nov 30, 2020	88.80	88.80	85.00	85.05
2416	NYSE	NPK	Fri, Nov 27, 2020	88.19	89.50	86.75	89.50
2415	NYSE	NPK	Wed, Nov 25, 2020	88.80	89.62	87.34	87.87
2414	NYSE	NPK	Tue, Nov 24, 2020	88.64	89.86	87.50	89.43
2413	NYSE	NPK	Mon, Nov 23, 2020	88.63	89.51	86.05	87.22
2412	NYSE	NPK	Fri, Nov 20, 2020	87.98	89.44	87.54	88.40
2411	NYSE	NPK	Thu, Nov 19, 2020	87.28	89.08	86.33	88.72
2410	NYSE	NPK	Wed, Nov 18, 2020	90.50	91.00	87.04	87.05
2409	NYSE	NPK	Tue, Nov 17, 2020	88.42	90.72	88.13	89.80
2408	NYSE	NPK	Mon, Nov 16, 2020	87.47	89.46	86.13	89.45
2407	NYSE	NPK	Fri, Nov 13, 2020	85.90	87.46	85.80	87.01
2406	NYSE	NPK	Thu, Nov 12, 2020	85.48	86.50	83.64	85.40
2405	NYSE	NPK	Wed, Nov 11, 2020	87.70	87.97	85.61	85.97
2404	NYSE	NPK	Tue, Nov 10, 2020	85.99	88.48	85.14	87.03
2403	NYSE	NPK	Mon, Nov 9, 2020	86.89	88.71	85.20	85.38
2402	NYSE	NPK	Fri, Nov 6, 2020	83.93	85.25	83.74	85.18
2401	NYSE	NPK	Thu, Nov 5, 2020	82.75	83.70	82.67	83.70
2400	NYSE	NPK	Wed, Nov 4, 2020	83.17	84.35	82.35	82.60
2399	NYSE	NPK	Tue, Nov 3, 2020	83.78	84.50	81.84	83.93
2398	NYSE	NPK	Mon, Nov 2, 2020	83.81	83.88	81.75	82.81
2397	NYSE	NPK	Fri, Oct 30, 2020	81.58	83.47	81.58	83.09
2396	NYSE	NPK	Thu, Oct 29, 2020	82.40	82.72	80.55	82.34
2395	NYSE	NPK	Wed, Oct 28, 2020	80.28	83.30	80.28	83.11
2394	NYSE	NPK	Tue, Oct 27, 2020	81.50	82.40	81.30	81.60
2393	NYSE	NPK	Mon, Oct 26, 2020	82.67	83.22	81.55	81.55
2392	NYSE	NPK	Fri, Oct 23, 2020	82.71	83.78	82.51	83.78
2391	NYSE	NPK	Thu, Oct 22, 2020	80.52	82.92	80.52	82.92
2390	NYSE	NPK	Wed, Oct 21, 2020	81.45	81.66	80.46	80.47
2389	NYSE	NPK	Tue, Oct 20, 2020	82.00	82.59	80.56	80.58
2388	NYSE	NPK	Mon, Oct 19, 2020	83.18	83.41	81.73	81.93
2387	NYSE	NPK	Fri, Oct 16, 2020	82.41	84.48	82.40	83.19
2386	NYSE	NPK	Thu, Oct 15, 2020	82.63	84.09	81.88	83.15
2385	NYSE	NPK	Wed, Oct 14, 2020	84.13	84.13	82.27	82.66
2384	NYSE	NPK	Tue, Oct 13, 2020	84.17	84.58	83.54	83.75
2383	NYSE	NPK	Mon, Oct 12, 2020	83.88	84.95	83.62	84.50
2382	NYSE	NPK	Fri, Oct 9, 2020	84.21	84.28	83.49	83.93
2381	NYSE	NPK	Thu, Oct 8, 2020	82.74	84.35	82.53	83.68
2380	NYSE	NPK	Wed, Oct 7, 2020	83.18	83.18	81.81	82.07
2379	NYSE	NPK	Tue, Oct 6, 2020	82.66	84.48	82.22	82.53
2378	NYSE	NPK	Mon, Oct 5, 2020	80.64	82.73	80.64	82.06
2377	NYSE	NPK	Fri, Oct 2, 2020	79.49	81.76	79.49	80.00
2376	NYSE	NPK	Thu, Oct 1, 2020	81.70	82.47	80.04	80.04
2375	NYSE	NPK	Wed, Sep 30, 2020	81.69	82.80	81.10	81.86
2374	NYSE	NPK	Tue, Sep 29, 2020	83.40	83.40	81.09	81.09
2373	NYSE	NPK	Mon, Sep 28, 2020	85.11	85.43	83.40	83.40
2372	NYSE	NPK	Fri, Sep 25, 2020	82.95	84.89	82.50	84.16
2371	NYSE	NPK	Thu, Sep 24, 2020	81.82	83.59	81.44	82.95
2370	NYSE	NPK	Wed, Sep 23, 2020	83.54	84.62	82.29	82.29
2369	NYSE	NPK	Tue, Sep 22, 2020	83.76	83.80	82.45	83.38
2368	NYSE	NPK	Mon, Sep 21, 2020	84.02	84.47	82.28	83.36
2367	NYSE	NPK	Fri, Sep 18, 2020	85.23	85.74	82.75	85.74
2366	NYSE	NPK	Thu, Sep 17, 2020	83.38	86.05	82.92	84.54
2365	NYSE	NPK	Wed, Sep 16, 2020	84.48	85.04	83.11	83.97
2364	NYSE	NPK	Tue, Sep 15, 2020	87.38	87.38	84.40	84.79
2363	NYSE	NPK	Mon, Sep 14, 2020	82.43	87.76	81.81	86.95
2362	NYSE	NPK	Fri, Sep 11, 2020	82.96	83.46	81.21	81.60
2361	NYSE	NPK	Thu, Sep 10, 2020	84.82	84.82	81.89	82.33
2360	NYSE	NPK	Wed, Sep 9, 2020	88.09	88.50	83.36	84.33
2359	NYSE	NPK	Tue, Sep 8, 2020	88.08	88.91	86.06	87.95
2358	NYSE	NPK	Fri, Sep 4, 2020	90.18	90.18	87.47	88.55
2357	NYSE	NPK	Thu, Sep 3, 2020	90.23	90.28	88.78	88.80
2356	NYSE	NPK	Wed, Sep 2, 2020	90.21	91.80	89.71	90.70
2355	NYSE	NPK	Tue, Sep 1, 2020	90.00	90.82	89.15	90.47
2354	NYSE	NPK	Mon, Aug 31, 2020	91.90	92.00	89.46	89.93
2353	NYSE	NPK	Fri, Aug 28, 2020	93.50	93.50	91.94	92.56
2352	NYSE	NPK	Thu, Aug 27, 2020	91.84	93.83	90.66	92.49
2351	NYSE	NPK	Wed, Aug 26, 2020	90.74	91.50	89.88	91.25
2350	NYSE	NPK	Tue, Aug 25, 2020	92.47	92.70	90.21	91.37
2349	NYSE	NPK	Mon, Aug 24, 2020	92.93	93.89	90.82	91.92
2348	NYSE	NPK	Fri, Aug 21, 2020	91.83	92.51	89.52	91.63
2347	NYSE	NPK	Thu, Aug 20, 2020	93.53	94.49	92.60	92.60
2346	NYSE	NPK	Wed, Aug 19, 2020	93.76	95.66	93.76	94.48
2345	NYSE	NPK	Tue, Aug 18, 2020	93.90	94.26	92.87	93.57
2344	NYSE	NPK	Mon, Aug 17, 2020	93.24	94.71	93.04	94.04
2343	NYSE	NPK	Fri, Aug 14, 2020	91.10	94.68	90.14	93.62
2342	NYSE	NPK	Thu, Aug 13, 2020	91.82	92.60	91.13	91.74
2341	NYSE	NPK	Wed, Aug 12, 2020	92.07	92.66	90.75	92.48
2340	NYSE	NPK	Tue, Aug 11, 2020	90.17	92.89	90.17	90.82
2339	NYSE	NPK	Mon, Aug 10, 2020	89.38	89.63	88.81	88.92
2338	NYSE	NPK	Fri, Aug 7, 2020	89.87	90.56	87.95	88.84
2337	NYSE	NPK	Thu, Aug 6, 2020	89.25	90.85	89.25	90.31
2336	NYSE	NPK	Wed, Aug 5, 2020	88.21	90.37	88.06	89.55
2335	NYSE	NPK	Tue, Aug 4, 2020	87.37	87.97	86.78	87.10
2334	NYSE	NPK	Mon, Aug 3, 2020	85.39	88.17	85.39	87.97
2333	NYSE	NPK	Fri, Jul 31, 2020	85.57	86.04	84.23	85.39
2332	NYSE	NPK	Thu, Jul 30, 2020	86.57	86.92	85.70	85.99
2331	NYSE	NPK	Wed, Jul 29, 2020	87.45	87.95	87.02	87.56
2330	NYSE	NPK	Tue, Jul 28, 2020	82.70	87.65	81.96	87.33
2329	NYSE	NPK	Mon, Jul 27, 2020	83.02	83.14	82.00	82.56
2328	NYSE	NPK	Fri, Jul 24, 2020	83.79	84.79	82.17	83.28
2327	NYSE	NPK	Thu, Jul 23, 2020	85.22	86.04	84.10	84.37
2326	NYSE	NPK	Wed, Jul 22, 2020	87.76	88.05	85.66	86.00
2325	NYSE	NPK	Tue, Jul 21, 2020	87.05	89.78	86.95	89.16
2324	NYSE	NPK	Mon, Jul 20, 2020	86.94	87.21	85.96	85.96
2323	NYSE	NPK	Fri, Jul 17, 2020	87.09	88.15	85.95	87.22
2322	NYSE	NPK	Thu, Jul 16, 2020	86.65	88.14	86.41	87.12
2321	NYSE	NPK	Wed, Jul 15, 2020	86.89	88.63	86.41	86.90
2320	NYSE	NPK	Tue, Jul 14, 2020	84.01	86.71	84.01	85.96
2319	NYSE	NPK	Mon, Jul 13, 2020	85.02	86.48	83.65	84.35
2318	NYSE	NPK	Fri, Jul 10, 2020	82.46	85.14	82.46	84.48
2317	NYSE	NPK	Thu, Jul 9, 2020	86.68	86.68	82.56	82.67
2316	NYSE	NPK	Wed, Jul 8, 2020	86.59	88.18	85.85	86.29
2315	NYSE	NPK	Tue, Jul 7, 2020	86.26	87.62	86.26	87.15
2314	NYSE	NPK	Mon, Jul 6, 2020	87.53	88.02	86.00	86.50
2313	NYSE	NPK	Thu, Jul 2, 2020	87.16	87.81	85.75	86.04
2312	NYSE	NPK	Wed, Jul 1, 2020	88.11	88.16	85.52	85.76
2311	NYSE	NPK	Tue, Jun 30, 2020	84.26	87.45	84.26	87.39
2310	NYSE	NPK	Mon, Jun 29, 2020	84.53	87.49	83.52	85.53
2309	NYSE	NPK	Fri, Jun 26, 2020	82.94	84.15	81.40	83.35
2308	NYSE	NPK	Thu, Jun 25, 2020	83.40	83.79	81.38	82.85
2307	NYSE	NPK	Wed, Jun 24, 2020	84.33	84.82	82.70	83.64
2306	NYSE	NPK	Tue, Jun 23, 2020	87.28	87.41	85.03	85.24
2305	NYSE	NPK	Mon, Jun 22, 2020	83.85	86.81	83.85	86.08
2304	NYSE	NPK	Fri, Jun 19, 2020	87.52	87.52	83.69	84.12
2303	NYSE	NPK	Thu, Jun 18, 2020	86.68	87.47	85.97	87.06
2302	NYSE	NPK	Wed, Jun 17, 2020	89.03	89.81	87.25	87.25
2301	NYSE	NPK	Tue, Jun 16, 2020	90.19	91.00	87.50	88.50
2300	NYSE	NPK	Mon, Jun 15, 2020	84.65	89.37	84.65	87.29
2299	NYSE	NPK	Fri, Jun 12, 2020	87.28	87.61	85.38	86.94
2298	NYSE	NPK	Thu, Jun 11, 2020	88.35	89.51	84.27	84.67
2297	NYSE	NPK	Wed, Jun 10, 2020	95.36	95.36	91.02	91.24
2296	NYSE	NPK	Tue, Jun 9, 2020	95.23	97.90	94.36	95.76
2295	NYSE	NPK	Mon, Jun 8, 2020	94.89	96.57	94.16	96.19
2294	NYSE	NPK	Fri, Jun 5, 2020	91.95	95.57	91.46	93.53
2293	NYSE	NPK	Thu, Jun 4, 2020	90.71	91.98	89.52	90.30
2292	NYSE	NPK	Wed, Jun 3, 2020	92.60	92.71	90.68	91.17
2291	NYSE	NPK	Tue, Jun 2, 2020	90.34	91.80	89.51	90.85
2290	NYSE	NPK	Mon, Jun 1, 2020	90.50	91.74	89.23	89.23
2289	NYSE	NPK	Fri, May 29, 2020	87.97	90.86	87.54	89.99
2288	NYSE	NPK	Thu, May 28, 2020	91.00	91.19	87.89	88.60
2287	NYSE	NPK	Wed, May 27, 2020	88.08	90.48	87.20	90.08
2286	NYSE	NPK	Tue, May 26, 2020	85.77	87.76	85.77	86.77
2285	NYSE	NPK	Fri, May 22, 2020	83.38	83.91	81.61	83.68
2284	NYSE	NPK	Thu, May 21, 2020	82.98	83.60	81.87	83.03
2283	NYSE	NPK	Wed, May 20, 2020	83.11	85.01	82.29	82.88
2282	NYSE	NPK	Tue, May 19, 2020	83.42	85.77	81.91	81.91
2281	NYSE	NPK	Mon, May 18, 2020	82.25	83.59	82.18	82.70
2280	NYSE	NPK	Fri, May 15, 2020	79.33	82.30	79.33	79.61
2279	NYSE	NPK	Thu, May 14, 2020	79.02	80.30	77.46	79.47
2278	NYSE	NPK	Wed, May 13, 2020	80.38	80.92	77.80	80.16
2277	NYSE	NPK	Tue, May 12, 2020	80.84	82.52	79.78	80.02
2276	NYSE	NPK	Mon, May 11, 2020	81.66	83.29	79.90	80.12
2275	NYSE	NPK	Fri, May 8, 2020	81.35	83.73	81.32	82.23
2274	NYSE	NPK	Thu, May 7, 2020	82.20	82.20	79.52	79.86
2273	NYSE	NPK	Wed, May 6, 2020	83.53	83.53	80.47	80.85
2272	NYSE	NPK	Tue, May 5, 2020	82.76	83.92	82.01	82.56
2271	NYSE	NPK	Mon, May 4, 2020	80.39	83.04	79.61	81.23
2270	NYSE	NPK	Fri, May 1, 2020	79.89	81.71	77.55	80.50
2269	NYSE	NPK	Thu, Apr 30, 2020	88.68	89.47	80.49	81.31
2268	NYSE	NPK	Wed, Apr 29, 2020	92.50	92.50	89.70	89.91
2267	NYSE	NPK	Tue, Apr 28, 2020	92.00	93.98	90.21	91.19
2266	NYSE	NPK	Mon, Apr 27, 2020	90.83	91.80	89.90	91.04
2265	NYSE	NPK	Fri, Apr 24, 2020	89.55	90.98	86.41	89.55
2264	NYSE	NPK	Thu, Apr 23, 2020	88.94	90.25	87.72	88.45
2263	NYSE	NPK	Wed, Apr 22, 2020	90.00	90.00	87.34	88.55
2262	NYSE	NPK	Tue, Apr 21, 2020	86.86	89.66	86.74	88.02
2261	NYSE	NPK	Mon, Apr 20, 2020	86.46	90.30	86.46	88.55
2260	NYSE	NPK	Fri, Apr 17, 2020	85.35	88.49	85.35	88.35
2259	NYSE	NPK	Thu, Apr 16, 2020	85.67	86.18	83.60	85.25
2258	NYSE	NPK	Wed, Apr 15, 2020	83.82	87.32	81.96	85.50
2257	NYSE	NPK	Tue, Apr 14, 2020	84.70	86.60	83.07	86.42
2256	NYSE	NPK	Mon, Apr 13, 2020	81.95	84.58	80.20	83.82
2255	NYSE	NPK	Thu, Apr 9, 2020	80.24	83.04	79.42	82.60
2254	NYSE	NPK	Wed, Apr 8, 2020	79.03	79.41	76.33	79.15
2253	NYSE	NPK	Tue, Apr 7, 2020	78.67	79.95	77.45	78.32
2252	NYSE	NPK	Mon, Apr 6, 2020	74.60	78.80	74.60	77.57
2251	NYSE	NPK	Fri, Apr 3, 2020	72.71	73.96	70.37	73.39
2250	NYSE	NPK	Thu, Apr 2, 2020	72.14	74.21	72.01	73.73
2249	NYSE	NPK	Wed, Apr 1, 2020	68.24	73.32	68.17	73.26
2248	NYSE	NPK	Tue, Mar 31, 2020	69.79	70.81	69.03	70.81
2247	NYSE	NPK	Mon, Mar 30, 2020	66.75	70.59	66.75	70.01
2246	NYSE	NPK	Fri, Mar 27, 2020	71.91	73.29	66.60	67.09
2245	NYSE	NPK	Thu, Mar 26, 2020	73.65	76.94	72.89	73.70
2244	NYSE	NPK	Wed, Mar 25, 2020	75.89	77.02	72.51	73.65
2243	NYSE	NPK	Tue, Mar 24, 2020	81.00	82.12	74.13	75.40
2242	NYSE	NPK	Mon, Mar 23, 2020	73.65	80.01	73.24	79.98
2241	NYSE	NPK	Fri, Mar 20, 2020	78.11	80.69	72.93	73.63
2240	NYSE	NPK	Thu, Mar 19, 2020	75.61	80.65	73.58	78.23
2239	NYSE	NPK	Wed, Mar 18, 2020	74.24	76.52	71.38	75.96
2238	NYSE	NPK	Tue, Mar 17, 2020	73.07	79.33	73.07	78.52
2237	NYSE	NPK	Mon, Mar 16, 2020	71.25	76.67	69.36	72.02
2236	NYSE	NPK	Fri, Mar 13, 2020	78.83	79.21	73.39	79.10
2235	NYSE	NPK	Thu, Mar 12, 2020	73.50	75.19	69.89	72.50
2234	NYSE	NPK	Wed, Mar 11, 2020	80.06	80.06	75.01	76.00
2233	NYSE	NPK	Tue, Mar 10, 2020	82.12	82.67	77.77	81.67
2232	NYSE	NPK	Mon, Mar 9, 2020	75.00	80.50	75.00	80.12
2231	NYSE	NPK	Fri, Mar 6, 2020	76.52	80.06	76.32	79.89
2230	NYSE	NPK	Thu, Mar 5, 2020	84.16	84.58	78.49	78.49
2229	NYSE	NPK	Wed, Mar 4, 2020	84.95	86.01	83.99	86.01
2228	NYSE	NPK	Tue, Mar 3, 2020	83.19	85.24	83.19	83.75
2227	NYSE	NPK	Mon, Mar 2, 2020	79.36	83.50	79.22	83.26
2226	NYSE	NPK	Fri, Feb 28, 2020	80.90	82.40	76.67	78.58
2225	NYSE	NPK	Thu, Feb 27, 2020	84.62	86.91	83.65	80.24
2224	NYSE	NPK	Wed, Feb 26, 2020	84.75	86.39	83.31	85.69
2223	NYSE	NPK	Tue, Feb 25, 2020	90.07	90.24	84.17	84.17
2222	NYSE	NPK	Mon, Feb 24, 2020	88.97	90.64	88.74	89.80
2221	NYSE	NPK	Fri, Feb 21, 2020	91.54	92.56	91.14	91.43
2220	NYSE	NPK	Thu, Feb 20, 2020	91.23	92.46	91.23	91.65
2219	NYSE	NPK	Wed, Feb 19, 2020	91.65	91.94	91.22	91.48
2218	NYSE	NPK	Tue, Feb 18, 2020	91.03	91.76	90.87	91.06
2217	NYSE	NPK	Fri, Feb 14, 2020	91.49	91.70	90.76	91.24
2216	NYSE	NPK	Thu, Feb 13, 2020	91.79	92.02	91.19	91.58
2215	NYSE	NPK	Wed, Feb 12, 2020	93.50	93.50	91.41	91.82
2214	NYSE	NPK	Tue, Feb 11, 2020	90.92	93.99	90.92	92.48
2213	NYSE	NPK	Mon, Feb 10, 2020	89.55	91.29	89.48	90.51
2212	NYSE	NPK	Fri, Feb 7, 2020	89.82	90.98	89.24	89.76
2211	NYSE	NPK	Thu, Feb 6, 2020	90.54	90.80	89.06	90.04
2210	NYSE	NPK	Wed, Feb 5, 2020	87.85	90.52	87.54	90.35
2209	NYSE	NPK	Tue, Feb 4, 2020	86.99	87.99	86.35	86.97
2208	NYSE	NPK	Mon, Feb 3, 2020	86.67	87.40	85.63	86.03
2207	NYSE	NPK	Fri, Jan 31, 2020	86.91	87.30	86.14	86.19
2206	NYSE	NPK	Thu, Jan 30, 2020	85.97	87.40	85.71	87.32
2205	NYSE	NPK	Wed, Jan 29, 2020	86.90	87.84	86.22	86.51
2204	NYSE	NPK	Tue, Jan 28, 2020	87.25	87.38	86.36	86.67
2203	NYSE	NPK	Mon, Jan 27, 2020	85.67	87.31	85.67	86.77
2202	NYSE	NPK	Fri, Jan 24, 2020	87.78	87.78	86.04	86.98
2201	NYSE	NPK	Thu, Jan 23, 2020	86.32	87.97	85.99	87.48
2200	NYSE	NPK	Wed, Jan 22, 2020	87.49	87.49	86.20	86.60
2199	NYSE	NPK	Tue, Jan 21, 2020	89.23	89.53	87.14	87.34
2198	NYSE	NPK	Fri, Jan 17, 2020	90.39	90.39	88.89	89.60
2197	NYSE	NPK	Thu, Jan 16, 2020	89.43	90.51	89.01	89.95
2196	NYSE	NPK	Wed, Jan 15, 2020	87.11	88.90	87.11	88.78
2195	NYSE	NPK	Tue, Jan 14, 2020	87.17	87.63	86.30	87.25
2194	NYSE	NPK	Mon, Jan 13, 2020	86.25	87.55	85.93	87.34
2193	NYSE	NPK	Fri, Jan 10, 2020	88.00	88.30	86.03	86.18
2192	NYSE	NPK	Thu, Jan 9, 2020	89.66	89.76	87.46	87.75
2191	NYSE	NPK	Wed, Jan 8, 2020	88.37	89.91	88.37	89.22
2190	NYSE	NPK	Tue, Jan 7, 2020	88.88	89.48	88.20	88.67
2189	NYSE	NPK	Mon, Jan 6, 2020	88.16	90.26	87.28	89.14
2188	NYSE	NPK	Fri, Jan 3, 2020	88.08	89.23	87.92	88.75
2187	NYSE	NPK	Thu, Jan 2, 2020	88.94	89.44	88.01	89.09
2186	NYSE	NPK	Tue, Dec 31, 2019	88.53	89.66	88.26	88.39
2185	NYSE	NPK	Mon, Dec 30, 2019	88.95	89.26	88.05	88.61
2184	NYSE	NPK	Fri, Dec 27, 2019	89.20	89.51	88.18	88.99
2183	NYSE	NPK	Thu, Dec 26, 2019	89.94	90.07	88.43	89.08
2182	NYSE	NPK	Tue, Dec 24, 2019	89.54	90.39	89.40	89.87
2181	NYSE	NPK	Mon, Dec 23, 2019	88.56	90.67	87.78	89.37
2180	NYSE	NPK	Fri, Dec 20, 2019	89.36	89.36	86.91	88.69
2179	NYSE	NPK	Thu, Dec 19, 2019	88.81	89.08	87.81	88.75
2178	NYSE	NPK	Wed, Dec 18, 2019	88.83	89.18	86.90	88.86
2177	NYSE	NPK	Tue, Dec 17, 2019	89.48	90.70	88.41	88.78
2176	NYSE	NPK	Mon, Dec 16, 2019	86.53	90.60	86.53	89.25
2175	NYSE	NPK	Fri, Dec 13, 2019	86.77	87.55	85.64	86.44
2174	NYSE	NPK	Thu, Dec 12, 2019	88.39	88.75	86.50	86.77
2173	NYSE	NPK	Wed, Dec 11, 2019	87.70	88.91	86.71	88.42
2172	NYSE	NPK	Tue, Dec 10, 2019	87.97	88.73	86.49	87.48
2171	NYSE	NPK	Mon, Dec 9, 2019	86.88	89.12	86.57	88.00
2170	NYSE	NPK	Fri, Dec 6, 2019	87.25	88.17	86.59	86.99
2169	NYSE	NPK	Thu, Dec 5, 2019	89.14	89.14	85.52	86.59
2168	NYSE	NPK	Wed, Dec 4, 2019	87.42	90.08	87.22	88.87
2167	NYSE	NPK	Tue, Dec 3, 2019	85.88	87.58	85.50	87.00
2166	NYSE	NPK	Mon, Dec 2, 2019	89.00	89.14	86.66	86.75
2165	NYSE	NPK	Fri, Nov 29, 2019	90.02	90.13	88.75	88.98
2164	NYSE	NPK	Wed, Nov 27, 2019	90.32	91.18	89.50	90.25
2163	NYSE	NPK	Tue, Nov 26, 2019	91.44	91.96	89.50	90.00
2162	NYSE	NPK	Mon, Nov 25, 2019	91.20	92.37	90.79	91.37
2161	NYSE	NPK	Fri, Nov 22, 2019	90.46	91.13	88.90	90.84
2160	NYSE	NPK	Thu, Nov 21, 2019	88.34	90.33	87.69	90.13
2159	NYSE	NPK	Wed, Nov 20, 2019	89.14	90.85	88.02	88.15
2158	NYSE	NPK	Tue, Nov 19, 2019	88.75	90.25	88.50	89.42
2157	NYSE	NPK	Mon, Nov 18, 2019	90.51	90.78	88.02	88.50
2156	NYSE	NPK	Fri, Nov 15, 2019	88.69	91.05	87.80	90.93
2155	NYSE	NPK	Thu, Nov 14, 2019	87.43	89.45	87.30	88.21
2154	NYSE	NPK	Wed, Nov 13, 2019	89.14	89.25	87.16	87.58
2153	NYSE	NPK	Tue, Nov 12, 2019	90.50	91.55	89.30	89.53
2152	NYSE	NPK	Mon, Nov 11, 2019	90.37	91.59	88.54	90.49
2151	NYSE	NPK	Fri, Nov 8, 2019	89.82	91.44	89.32	90.90
2150	NYSE	NPK	Thu, Nov 7, 2019	90.52	91.10	89.86	89.90
2149	NYSE	NPK	Wed, Nov 6, 2019	90.22	90.55	88.72	89.69
2148	NYSE	NPK	Tue, Nov 5, 2019	89.35	91.32	89.35	90.28
2147	NYSE	NPK	Mon, Nov 4, 2019	87.97	88.88	87.51	88.86
2146	NYSE	NPK	Fri, Nov 1, 2019	86.40	88.33	86.40	87.44
2145	NYSE	NPK	Thu, Oct 31, 2019	86.28	86.61	84.85	86.09
2144	NYSE	NPK	Wed, Oct 30, 2019	86.10	86.39	84.37	86.39
2143	NYSE	NPK	Tue, Oct 29, 2019	83.43	86.16	83.43	85.96
2142	NYSE	NPK	Mon, Oct 28, 2019	82.68	84.52	82.49	83.83
2141	NYSE	NPK	Fri, Oct 25, 2019	82.11	83.56	82.11	82.46
2140	NYSE	NPK	Thu, Oct 24, 2019	83.01	83.01	81.08	82.37
2139	NYSE	NPK	Wed, Oct 23, 2019	82.20	82.78	80.80	82.70
2138	NYSE	NPK	Tue, Oct 22, 2019	82.93	83.20	81.99	82.20
2137	NYSE	NPK	Mon, Oct 21, 2019	81.76	83.26	81.60	82.85
2136	NYSE	NPK	Fri, Oct 18, 2019	81.46	81.92	80.39	81.20
2135	NYSE	NPK	Thu, Oct 17, 2019	81.99	82.65	81.55	81.85
2134	NYSE	NPK	Wed, Oct 16, 2019	82.05	83.90	80.92	81.10
2133	NYSE	NPK	Tue, Oct 15, 2019	83.12	84.28	82.13	82.41
2132	NYSE	NPK	Mon, Oct 14, 2019	83.59	83.59	82.31	82.95
2131	NYSE	NPK	Fri, Oct 11, 2019	83.74	86.55	83.74	84.01
2130	NYSE	NPK	Thu, Oct 10, 2019	83.12	84.41	82.65	82.85
2129	NYSE	NPK	Wed, Oct 9, 2019	83.39	83.61	82.14	83.09
2128	NYSE	NPK	Tue, Oct 8, 2019	83.25	84.04	82.61	82.98
2127	NYSE	NPK	Mon, Oct 7, 2019	84.88	85.63	83.98	84.07
2126	NYSE	NPK	Fri, Oct 4, 2019	85.91	86.22	84.66	85.30
2125	NYSE	NPK	Thu, Oct 3, 2019	86.21	86.21	84.63	85.38
2124	NYSE	NPK	Wed, Oct 2, 2019	87.78	87.78	85.89	85.95
2123	NYSE	NPK	Tue, Oct 1, 2019	89.47	90.31	87.74	87.89
2122	NYSE	NPK	Mon, Sep 30, 2019	89.11	90.11	88.50	89.09
2121	NYSE	NPK	Fri, Sep 27, 2019	89.28	90.20	88.61	89.05
2120	NYSE	NPK	Thu, Sep 26, 2019	90.36	90.44	87.17	88.62
2119	NYSE	NPK	Wed, Sep 25, 2019	89.68	91.40	89.68	90.44
2118	NYSE	NPK	Tue, Sep 24, 2019	90.45	91.08	88.56	89.73
2117	NYSE	NPK	Mon, Sep 23, 2019	87.20	91.33	86.89	90.22
2116	NYSE	NPK	Fri, Sep 20, 2019	90.75	92.00	87.55	88.22
2115	NYSE	NPK	Thu, Sep 19, 2019	90.96	92.89	90.55	90.84
2114	NYSE	NPK	Wed, Sep 18, 2019	93.65	94.06	89.43	91.32
2113	NYSE	NPK	Tue, Sep 17, 2019	94.97	95.60	93.44	94.31
2112	NYSE	NPK	Mon, Sep 16, 2019	95.37	96.60	94.67	95.57
2111	NYSE	NPK	Fri, Sep 13, 2019	95.84	97.82	95.37	95.61
2110	NYSE	NPK	Thu, Sep 12, 2019	94.00	95.45	92.68	95.11
2109	NYSE	NPK	Wed, Sep 11, 2019	88.78	94.40	88.78	93.99
2108	NYSE	NPK	Tue, Sep 10, 2019	89.00	89.79	87.91	88.26
2107	NYSE	NPK	Mon, Sep 9, 2019	88.07	89.29	87.42	89.04
2106	NYSE	NPK	Fri, Sep 6, 2019	88.72	89.48	87.50	87.86
2105	NYSE	NPK	Thu, Sep 5, 2019	88.25	90.81	88.01	88.85
2104	NYSE	NPK	Wed, Sep 4, 2019	86.46	87.36	86.14	87.24
2103	NYSE	NPK	Tue, Sep 3, 2019	84.86	86.82	84.62	85.95
2102	NYSE	NPK	Fri, Aug 30, 2019	86.26	86.50	85.25	85.71
2101	NYSE	NPK	Thu, Aug 29, 2019	85.08	86.47	85.08	85.62
2100	NYSE	NPK	Wed, Aug 28, 2019	82.39	85.17	82.38	84.34
2099	NYSE	NPK	Tue, Aug 27, 2019	84.75	85.16	82.44	82.78
2098	NYSE	NPK	Mon, Aug 26, 2019	83.61	85.22	83.08	84.42
2097	NYSE	NPK	Fri, Aug 23, 2019	86.05	86.70	82.90	82.96
2096	NYSE	NPK	Thu, Aug 22, 2019	84.84	87.38	84.65	86.37
2095	NYSE	NPK	Wed, Aug 21, 2019	84.41	85.62	83.17	84.58
2094	NYSE	NPK	Tue, Aug 20, 2019	85.64	85.90	83.05	83.79
2093	NYSE	NPK	Mon, Aug 19, 2019	86.15	86.62	85.24	85.93
2092	NYSE	NPK	Fri, Aug 16, 2019	86.10	86.96	85.03	85.50
2091	NYSE	NPK	Thu, Aug 15, 2019	89.73	89.85	85.73	85.75
2090	NYSE	NPK	Wed, Aug 14, 2019	91.85	92.00	89.01	90.05
2089	NYSE	NPK	Tue, Aug 13, 2019	91.59	93.10	91.37	92.93
2088	NYSE	NPK	Mon, Aug 12, 2019	91.99	91.99	90.71	91.50
2087	NYSE	NPK	Fri, Aug 9, 2019	95.37	95.50	92.48	92.81
2086	NYSE	NPK	Thu, Aug 8, 2019	94.50	95.57	94.31	95.52
2085	NYSE	NPK	Wed, Aug 7, 2019	90.50	94.84	90.50	94.16
2084	NYSE	NPK	Tue, Aug 6, 2019	90.57	91.50	89.96	91.42
2083	NYSE	NPK	Mon, Aug 5, 2019	90.45	91.19	89.30	90.28
2082	NYSE	NPK	Fri, Aug 2, 2019	91.13	91.54	90.08	91.50
2081	NYSE	NPK	Thu, Aug 1, 2019	91.97	92.85	91.03	91.50
2080	NYSE	NPK	Wed, Jul 31, 2019	91.69	93.81	91.54	91.97
2079	NYSE	NPK	Tue, Jul 30, 2019	91.65	92.67	91.01	91.65
2078	NYSE	NPK	Mon, Jul 29, 2019	92.74	92.74	91.09	92.01
2077	NYSE	NPK	Fri, Jul 26, 2019	93.49	93.72	92.17	92.52
2076	NYSE	NPK	Thu, Jul 25, 2019	93.18	93.86	92.23	93.23
2075	NYSE	NPK	Wed, Jul 24, 2019	90.93	93.11	90.37	92.90
2074	NYSE	NPK	Tue, Jul 23, 2019	90.18	92.26	89.73	91.34
2073	NYSE	NPK	Mon, Jul 22, 2019	90.94	91.07	89.60	90.18
2072	NYSE	NPK	Fri, Jul 19, 2019	90.39	91.57	89.77	90.88
2071	NYSE	NPK	Thu, Jul 18, 2019	90.81	91.45	88.45	90.24
2070	NYSE	NPK	Wed, Jul 17, 2019	92.70	93.22	90.40	91.25
2069	NYSE	NPK	Tue, Jul 16, 2019	95.33	96.37	92.36	92.66
2068	NYSE	NPK	Mon, Jul 15, 2019	94.55	95.66	94.07	95.46
2067	NYSE	NPK	Fri, Jul 12, 2019	92.77	94.86	92.77	94.43
2066	NYSE	NPK	Thu, Jul 11, 2019	91.28	92.83	88.55	92.54
2065	NYSE	NPK	Wed, Jul 10, 2019	94.18	95.22	91.13	91.30
2064	NYSE	NPK	Tue, Jul 9, 2019	93.45	94.13	91.73	94.00
2063	NYSE	NPK	Mon, Jul 8, 2019	95.36	96.10	93.26	93.94
2062	NYSE	NPK	Fri, Jul 5, 2019	94.00	95.71	93.63	95.58
2061	NYSE	NPK	Wed, Jul 3, 2019	93.75	94.68	93.32	94.50
2060	NYSE	NPK	Tue, Jul 2, 2019	93.31	94.00	92.34	93.74
2059	NYSE	NPK	Mon, Jul 1, 2019	93.96	94.60	93.22	93.31
2058	NYSE	NPK	Fri, Jun 28, 2019	89.80	93.50	89.77	93.29
2057	NYSE	NPK	Thu, Jun 27, 2019	90.36	91.16	89.91	89.98
2056	NYSE	NPK	Wed, Jun 26, 2019	94.05	94.48	90.41	90.50
2055	NYSE	NPK	Tue, Jun 25, 2019	93.53	94.84	92.79	93.91
2054	NYSE	NPK	Mon, Jun 24, 2019	93.79	94.90	93.11	93.41
2053	NYSE	NPK	Fri, Jun 21, 2019	92.61	95.70	92.50	93.64
2052	NYSE	NPK	Thu, Jun 20, 2019	92.31	93.00	90.50	92.76
2051	NYSE	NPK	Wed, Jun 19, 2019	91.51	92.14	90.50	91.72
2050	NYSE	NPK	Tue, Jun 18, 2019	90.88	92.47	90.50	91.67
2049	NYSE	NPK	Mon, Jun 17, 2019	94.37	94.37	89.24	90.51
2048	NYSE	NPK	Fri, Jun 14, 2019	94.12	96.65	94.12	94.40
2047	NYSE	NPK	Thu, Jun 13, 2019	93.55	94.48	93.48	94.24
2046	NYSE	NPK	Wed, Jun 12, 2019	92.41	93.91	91.94	93.22
2045	NYSE	NPK	Tue, Jun 11, 2019	93.93	94.50	92.05	92.57
2044	NYSE	NPK	Mon, Jun 10, 2019	93.77	94.05	90.63	93.42
2043	NYSE	NPK	Fri, Jun 7, 2019	97.18	98.55	93.36	93.68
2042	NYSE	NPK	Thu, Jun 6, 2019	96.60	97.23	95.49	96.87
2041	NYSE	NPK	Wed, Jun 5, 2019	98.60	98.64	96.34	96.60
2040	NYSE	NPK	Tue, Jun 4, 2019	97.85	98.34	96.80	98.18
2039	NYSE	NPK	Mon, Jun 3, 2019	97.81	98.63	96.71	97.30
2038	NYSE	NPK	Fri, May 31, 2019	98.70	99.25	97.40	97.89
2037	NYSE	NPK	Thu, May 30, 2019	99.95	100.62	98.92	99.60
2036	NYSE	NPK	Wed, May 29, 2019	101.30	101.86	98.19	99.57
2035	NYSE	NPK	Tue, May 28, 2019	99.91	102.27	99.91	101.77
2034	NYSE	NPK	Fri, May 24, 2019	101.50	101.92	100.81	101.18
2033	NYSE	NPK	Thu, May 23, 2019	100.74	101.58	99.04	101.25
2032	NYSE	NPK	Wed, May 22, 2019	101.22	102.29	100.38	101.14
2031	NYSE	NPK	Tue, May 21, 2019	100.76	101.62	100.26	101.15
2030	NYSE	NPK	Mon, May 20, 2019	100.95	102.07	100.19	101.00
2029	NYSE	NPK	Fri, May 17, 2019	100.37	102.30	100.11	101.37
2028	NYSE	NPK	Thu, May 16, 2019	101.12	102.19	100.41	101.01
2027	NYSE	NPK	Wed, May 15, 2019	101.14	101.98	99.59	101.02
2026	NYSE	NPK	Tue, May 14, 2019	101.35	103.18	100.02	101.72
2025	NYSE	NPK	Mon, May 13, 2019	105.75	105.75	100.71	101.16
2024	NYSE	NPK	Fri, May 10, 2019	108.16	109.91	105.00	107.74
2023	NYSE	NPK	Thu, May 9, 2019	108.98	108.98	105.57	107.91
2022	NYSE	NPK	Wed, May 8, 2019	110.00	110.17	108.61	109.04
2021	NYSE	NPK	Tue, May 7, 2019	108.82	110.69	108.79	110.33
2020	NYSE	NPK	Mon, May 6, 2019	107.67	109.35	106.13	108.52
2019	NYSE	NPK	Fri, May 3, 2019	106.74	110.39	106.74	109.13
2018	NYSE	NPK	Thu, May 2, 2019	105.88	108.63	105.00	105.93
2017	NYSE	NPK	Wed, May 1, 2019	106.57	107.37	104.67	105.60
2016	NYSE	NPK	Tue, Apr 30, 2019	108.84	109.75	106.02	106.50
2015	NYSE	NPK	Mon, Apr 29, 2019	110.00	110.00	103.18	108.11
2014	NYSE	NPK	Fri, Apr 26, 2019	111.01	112.50	110.43	112.50
2013	NYSE	NPK	Thu, Apr 25, 2019	109.51	112.08	109.16	110.88
2012	NYSE	NPK	Wed, Apr 24, 2019	108.80	110.60	108.52	109.65
2011	NYSE	NPK	Tue, Apr 23, 2019	107.63	112.26	107.63	108.94
2010	NYSE	NPK	Mon, Apr 22, 2019	106.96	108.80	106.51	107.62
2009	NYSE	NPK	Thu, Apr 18, 2019	105.82	107.26	105.09	106.90
2008	NYSE	NPK	Wed, Apr 17, 2019	108.55	109.44	104.80	105.98
2007	NYSE	NPK	Tue, Apr 16, 2019	109.60	109.83	107.33	108.37
2006	NYSE	NPK	Mon, Apr 15, 2019	108.34	109.44	107.55	109.08
2005	NYSE	NPK	Fri, Apr 12, 2019	108.96	109.87	107.59	108.41
2004	NYSE	NPK	Thu, Apr 11, 2019	107.64	109.30	107.64	108.38
2003	NYSE	NPK	Wed, Apr 10, 2019	106.59	107.95	106.00	107.95
2002	NYSE	NPK	Tue, Apr 9, 2019	106.37	107.94	106.06	106.58
2001	NYSE	NPK	Mon, Apr 8, 2019	107.45	108.05	106.50	107.00
2000	NYSE	NPK	Fri, Apr 5, 2019	107.01	108.79	107.01	107.86
1999	NYSE	NPK	Thu, Apr 4, 2019	104.83	106.85	104.10	106.69
1998	NYSE	NPK	Wed, Apr 3, 2019	106.95	107.99	103.40	105.00
1997	NYSE	NPK	Tue, Apr 2, 2019	108.60	109.79	106.70	106.95
1996	NYSE	NPK	Mon, Apr 1, 2019	109.52	110.56	107.26	108.17
1995	NYSE	NPK	Fri, Mar 29, 2019	111.91	112.05	108.14	108.55
1994	NYSE	NPK	Thu, Mar 28, 2019	112.00	113.60	109.77	111.13
1993	NYSE	NPK	Wed, Mar 27, 2019	111.06	112.87	109.79	111.88
1992	NYSE	NPK	Tue, Mar 26, 2019	111.46	113.25	110.40	110.90
1991	NYSE	NPK	Mon, Mar 25, 2019	108.30	111.33	108.20	110.79
1990	NYSE	NPK	Fri, Mar 22, 2019	109.94	110.86	108.22	108.51
1989	NYSE	NPK	Thu, Mar 21, 2019	108.02	112.21	108.02	110.66
1988	NYSE	NPK	Wed, Mar 20, 2019	108.10	110.76	107.62	108.21
1987	NYSE	NPK	Tue, Mar 19, 2019	108.31	109.54	107.77	108.07
1986	NYSE	NPK	Mon, Mar 18, 2019	108.29	109.84	106.96	108.13
1985	NYSE	NPK	Fri, Mar 15, 2019	109.29	109.60	107.92	108.40
1984	NYSE	NPK	Thu, Mar 14, 2019	106.55	110.57	106.55	109.24
1983	NYSE	NPK	Wed, Mar 13, 2019	105.86	107.50	104.75	106.92
1982	NYSE	NPK	Tue, Mar 12, 2019	104.67	106.72	104.05	105.13
1981	NYSE	NPK	Mon, Mar 11, 2019	105.38	105.60	103.41	104.43
1980	NYSE	NPK	Fri, Mar 8, 2019	103.80	105.75	103.11	105.39
1979	NYSE	NPK	Thu, Mar 7, 2019	104.96	105.63	103.70	104.16
1978	NYSE	NPK	Wed, Mar 6, 2019	103.00	105.60	102.11	105.21
1977	NYSE	NPK	Tue, Mar 5, 2019	102.66	102.83	99.24	102.62
1976	NYSE	NPK	Mon, Mar 4, 2019	112.27	112.27	102.35	102.77
1975	NYSE	NPK	Fri, Mar 1, 2019	112.54	112.54	109.50	111.97
1974	NYSE	NPK	Thu, Feb 28, 2019	113.67	115.50	111.62	112.14
1973	NYSE	NPK	Wed, Feb 27, 2019	119.10	121.36	117.60	113.52
1972	NYSE	NPK	Tue, Feb 26, 2019	122.02	122.02	116.30	118.80
1971	NYSE	NPK	Mon, Feb 25, 2019	126.38	126.44	121.59	122.02
1970	NYSE	NPK	Fri, Feb 22, 2019	121.91	124.95	121.65	124.31
1969	NYSE	NPK	Thu, Feb 21, 2019	120.50	121.65	119.35	121.00
1968	NYSE	NPK	Wed, Feb 20, 2019	119.84	121.00	118.08	120.28
1967	NYSE	NPK	Tue, Feb 19, 2019	125.64	125.90	118.99	119.84
1966	NYSE	NPK	Fri, Feb 15, 2019	128.40	133.12	128.39	130.50
1965	NYSE	NPK	Thu, Feb 14, 2019	126.99	128.12	125.01	127.46
1964	NYSE	NPK	Wed, Feb 13, 2019	123.66	127.63	123.20	127.52
1963	NYSE	NPK	Tue, Feb 12, 2019	123.88	125.29	120.79	123.22
1962	NYSE	NPK	Mon, Feb 11, 2019	124.08	124.21	122.69	123.43
1961	NYSE	NPK	Fri, Feb 8, 2019	121.35	123.89	120.22	123.89
1960	NYSE	NPK	Thu, Feb 7, 2019	120.63	122.10	120.63	121.68
1959	NYSE	NPK	Wed, Feb 6, 2019	120.33	121.78	120.33	121.01
1958	NYSE	NPK	Tue, Feb 5, 2019	119.13	120.96	118.37	120.32
1957	NYSE	NPK	Mon, Feb 4, 2019	119.20	120.94	117.58	118.86
1956	NYSE	NPK	Fri, Feb 1, 2019	119.55	121.62	117.77	119.74
1955	NYSE	NPK	Thu, Jan 31, 2019	119.31	120.63	118.28	119.62
1954	NYSE	NPK	Wed, Jan 30, 2019	119.97	120.82	119.02	119.63
1953	NYSE	NPK	Tue, Jan 29, 2019	120.98	122.04	119.40	119.62
1952	NYSE	NPK	Mon, Jan 28, 2019	121.23	122.68	119.00	121.34
1951	NYSE	NPK	Fri, Jan 25, 2019	124.34	124.34	120.73	122.32
1950	NYSE	NPK	Thu, Jan 24, 2019	123.06	124.06	122.98	123.74
1949	NYSE	NPK	Wed, Jan 23, 2019	122.14	125.07	121.64	123.01
1948	NYSE	NPK	Tue, Jan 22, 2019	125.46	126.34	122.00	122.45
1947	NYSE	NPK	Fri, Jan 18, 2019	124.18	127.53	124.18	125.96
1946	NYSE	NPK	Thu, Jan 17, 2019	121.26	125.00	121.23	123.59
1945	NYSE	NPK	Wed, Jan 16, 2019	119.38	123.27	119.33	121.75
1944	NYSE	NPK	Tue, Jan 15, 2019	119.91	120.72	118.40	119.35
1943	NYSE	NPK	Mon, Jan 14, 2019	120.28	120.85	117.29	119.87
1942	NYSE	NPK	Fri, Jan 11, 2019	117.92	120.93	116.60	120.87
1941	NYSE	NPK	Thu, Jan 10, 2019	118.09	119.25	116.82	119.25
1940	NYSE	NPK	Wed, Jan 9, 2019	119.00	119.79	117.56	118.09
1939	NYSE	NPK	Tue, Jan 8, 2019	115.91	120.68	115.59	118.39
1938	NYSE	NPK	Mon, Jan 7, 2019	117.77	117.77	112.95	115.06
1937	NYSE	NPK	Fri, Jan 4, 2019	115.46	117.99	115.00	117.76
1936	NYSE	NPK	Thu, Jan 3, 2019	116.02	116.02	114.01	114.48
1935	NYSE	NPK	Wed, Jan 2, 2019	116.10	117.50	114.50	115.84
1934	NYSE	NPK	Mon, Dec 31, 2018	119.55	120.21	116.50	116.92
1933	NYSE	NPK	Fri, Dec 28, 2018	115.37	121.19	115.00	119.56
1932	NYSE	NPK	Thu, Dec 27, 2018	111.07	114.62	110.60	114.61
1931	NYSE	NPK	Wed, Dec 26, 2018	113.81	113.81	109.50	112.23
1930	NYSE	NPK	Mon, Dec 24, 2018	114.01	115.16	112.52	113.11
1929	NYSE	NPK	Fri, Dec 21, 2018	115.62	117.22	114.50	114.80
1928	NYSE	NPK	Thu, Dec 20, 2018	118.69	118.69	112.46	115.40
1927	NYSE	NPK	Wed, Dec 19, 2018	121.57	123.23	118.00	118.99
1926	NYSE	NPK	Tue, Dec 18, 2018	120.20	122.64	118.89	120.83
1925	NYSE	NPK	Mon, Dec 17, 2018	121.25	123.41	117.90	119.05
1924	NYSE	NPK	Fri, Dec 14, 2018	122.65	123.20	119.47	121.48
1923	NYSE	NPK	Thu, Dec 13, 2018	127.91	127.91	121.87	123.32
1922	NYSE	NPK	Wed, Dec 12, 2018	124.66	129.04	123.76	127.71
1921	NYSE	NPK	Tue, Dec 11, 2018	122.58	124.58	120.57	123.68
1920	NYSE	NPK	Mon, Dec 10, 2018	121.00	123.00	119.72	121.29
1919	NYSE	NPK	Fri, Dec 7, 2018	121.41	123.42	119.80	121.17
1918	NYSE	NPK	Thu, Dec 6, 2018	123.87	123.96	119.47	121.42
1917	NYSE	NPK	Tue, Dec 4, 2018	128.51	129.05	124.25	125.23
1916	NYSE	NPK	Mon, Dec 3, 2018	130.27	130.27	126.60	128.47
1915	NYSE	NPK	Fri, Nov 30, 2018	127.61	129.10	125.24	128.48
1914	NYSE	NPK	Thu, Nov 29, 2018	127.49	129.74	127.18	127.61
1913	NYSE	NPK	Wed, Nov 28, 2018	124.69	128.01	123.84	127.66
1912	NYSE	NPK	Tue, Nov 27, 2018	126.00	126.00	123.18	124.42
1911	NYSE	NPK	Mon, Nov 26, 2018	127.54	127.99	124.74	126.08
1910	NYSE	NPK	Fri, Nov 23, 2018	127.31	127.98	125.32	126.64
1909	NYSE	NPK	Wed, Nov 21, 2018	129.29	129.29	126.29	127.91
1908	NYSE	NPK	Tue, Nov 20, 2018	130.71	130.89	127.14	128.73
1907	NYSE	NPK	Mon, Nov 19, 2018	130.73	133.95	130.73	132.01
1906	NYSE	NPK	Fri, Nov 16, 2018	127.47	131.51	126.57	131.11
1905	NYSE	NPK	Thu, Nov 15, 2018	127.60	129.05	125.63	127.92
1904	NYSE	NPK	Wed, Nov 14, 2018	130.97	131.85	127.86	128.47
1903	NYSE	NPK	Tue, Nov 13, 2018	132.04	133.04	129.83	130.78
1902	NYSE	NPK	Mon, Nov 12, 2018	133.16	133.16	127.93	132.00
1901	NYSE	NPK	Fri, Nov 9, 2018	132.40	133.58	131.80	133.40
1900	NYSE	NPK	Thu, Nov 8, 2018	131.06	132.79	129.47	132.79
1899	NYSE	NPK	Wed, Nov 7, 2018	127.31	131.33	127.31	131.21
1898	NYSE	NPK	Tue, Nov 6, 2018	125.27	128.24	125.13	126.42
1897	NYSE	NPK	Mon, Nov 5, 2018	126.63	126.91	125.48	125.54
1896	NYSE	NPK	Fri, Nov 2, 2018	126.38	128.69	126.38	126.56
1895	NYSE	NPK	Thu, Nov 1, 2018	125.98	128.28	125.49	126.02
1894	NYSE	NPK	Wed, Oct 31, 2018	127.10	127.10	124.65	124.67
1893	NYSE	NPK	Tue, Oct 30, 2018	123.00	125.86	122.98	125.68
1892	NYSE	NPK	Mon, Oct 29, 2018	127.04	127.47	121.23	122.76
1891	NYSE	NPK	Fri, Oct 26, 2018	124.36	126.57	122.51	125.75
1890	NYSE	NPK	Thu, Oct 25, 2018	124.67	127.05	123.44	125.77
1889	NYSE	NPK	Wed, Oct 24, 2018	128.34	131.73	123.83	124.01
1888	NYSE	NPK	Tue, Oct 23, 2018	127.99	128.49	126.36	128.30
1887	NYSE	NPK	Mon, Oct 22, 2018	124.41	128.80	123.78	128.52
1886	NYSE	NPK	Fri, Oct 19, 2018	124.13	124.13	123.00	123.78
1885	NYSE	NPK	Thu, Oct 18, 2018	125.82	126.73	122.75	124.13
1884	NYSE	NPK	Wed, Oct 17, 2018	125.05	126.67	122.02	126.59
1883	NYSE	NPK	Tue, Oct 16, 2018	123.00	125.79	121.67	125.19
1882	NYSE	NPK	Mon, Oct 15, 2018	122.18	125.02	121.03	122.32
1881	NYSE	NPK	Fri, Oct 12, 2018	124.07	124.49	119.62	122.43
1880	NYSE	NPK	Thu, Oct 11, 2018	127.79	127.97	121.06	122.51
1879	NYSE	NPK	Wed, Oct 10, 2018	131.77	131.77	128.58	128.61
1878	NYSE	NPK	Tue, Oct 9, 2018	130.77	133.62	129.49	131.81
1877	NYSE	NPK	Mon, Oct 8, 2018	130.20	131.93	129.25	131.02
1876	NYSE	NPK	Fri, Oct 5, 2018	130.39	130.90	127.74	130.20
1875	NYSE	NPK	Thu, Oct 4, 2018	128.83	130.46	127.42	130.45
1874	NYSE	NPK	Wed, Oct 3, 2018	127.21	129.00	126.03	128.76
1873	NYSE	NPK	Tue, Oct 2, 2018	128.05	128.32	127.00	127.28
1872	NYSE	NPK	Mon, Oct 1, 2018	133.15	133.15	127.70	128.52
1871	NYSE	NPK	Fri, Sep 28, 2018	128.15	131.30	128.15	129.65
1870	NYSE	NPK	Thu, Sep 27, 2018	126.50	129.15	125.60	128.55
1869	NYSE	NPK	Wed, Sep 26, 2018	126.40	126.95	124.70	126.20
1868	NYSE	NPK	Tue, Sep 25, 2018	124.95	126.95	123.60	126.20
1867	NYSE	NPK	Mon, Sep 24, 2018	124.15	125.10	123.51	124.95
1866	NYSE	NPK	Fri, Sep 21, 2018	126.65	129.10	124.20	124.55
1865	NYSE	NPK	Thu, Sep 20, 2018	125.10	127.58	124.60	126.55
1864	NYSE	NPK	Wed, Sep 19, 2018	125.75	126.75	123.80	124.55
1863	NYSE	NPK	Tue, Sep 18, 2018	126.75	128.05	125.35	125.90
1862	NYSE	NPK	Mon, Sep 17, 2018	127.00	127.25	124.75	126.50
1861	NYSE	NPK	Fri, Sep 14, 2018	125.05	128.85	124.00	127.20
1860	NYSE	NPK	Thu, Sep 13, 2018	127.80	128.80	122.70	125.05
1859	NYSE	NPK	Wed, Sep 12, 2018	129.30	129.30	127.30	127.65
1858	NYSE	NPK	Tue, Sep 11, 2018	130.10	131.70	128.75	129.45
1857	NYSE	NPK	Mon, Sep 10, 2018	130.25	130.75	128.65	130.15
1856	NYSE	NPK	Fri, Sep 7, 2018	129.90	130.55	128.05	129.70
1855	NYSE	NPK	Thu, Sep 6, 2018	130.30	130.70	129.25	130.30
1854	NYSE	NPK	Wed, Sep 5, 2018	131.45	131.90	128.30	130.30
1853	NYSE	NPK	Tue, Sep 4, 2018	131.60	132.25	130.46	131.30
1852	NYSE	NPK	Fri, Aug 31, 2018	131.70	133.70	130.85	132.60
1851	NYSE	NPK	Thu, Aug 30, 2018	134.45	134.50	130.90	131.85
1850	NYSE	NPK	Wed, Aug 29, 2018	137.40	138.15	132.91	134.50
1849	NYSE	NPK	Tue, Aug 28, 2018	136.25	137.80	133.86	137.10
1848	NYSE	NPK	Mon, Aug 27, 2018	139.55	140.33	136.11	137.25
1847	NYSE	NPK	Fri, Aug 24, 2018	138.10	139.05	137.35	139.05
1846	NYSE	NPK	Thu, Aug 23, 2018	138.80	138.80	137.48	137.95
1845	NYSE	NPK	Wed, Aug 22, 2018	139.25	140.30	138.45	139.15
1844	NYSE	NPK	Tue, Aug 21, 2018	136.00	140.00	135.56	139.35
1843	NYSE	NPK	Mon, Aug 20, 2018	136.10	137.10	135.00	135.35
1842	NYSE	NPK	Fri, Aug 17, 2018	134.20	135.90	133.35	135.50
1841	NYSE	NPK	Thu, Aug 16, 2018	134.85	136.45	133.70	134.55
1840	NYSE	NPK	Wed, Aug 15, 2018	133.45	137.00	133.00	134.70
1839	NYSE	NPK	Tue, Aug 14, 2018	128.95	133.95	128.25	133.85
1838	NYSE	NPK	Mon, Aug 13, 2018	124.40	128.45	124.25	128.00
1837	NYSE	NPK	Fri, Aug 10, 2018	124.90	125.94	124.45	124.50
1836	NYSE	NPK	Thu, Aug 9, 2018	125.25	126.10	124.90	125.35
1835	NYSE	NPK	Wed, Aug 8, 2018	125.60	127.95	124.55	125.30
1834	NYSE	NPK	Tue, Aug 7, 2018	127.40	128.65	124.75	125.10
1833	NYSE	NPK	Mon, Aug 6, 2018	125.95	127.80	124.70	127.30
1832	NYSE	NPK	Fri, Aug 3, 2018	126.05	127.50	125.40	125.70
1831	NYSE	NPK	Thu, Aug 2, 2018	124.40	127.80	124.08	126.15
1830	NYSE	NPK	Wed, Aug 1, 2018	125.05	125.68	122.68	124.45
1829	NYSE	NPK	Tue, Jul 31, 2018	120.15	125.30	120.15	124.65
1828	NYSE	NPK	Mon, Jul 30, 2018	120.00	120.95	117.11	120.10
1827	NYSE	NPK	Fri, Jul 27, 2018	121.50	122.45	117.50	117.60
1826	NYSE	NPK	Thu, Jul 26, 2018	116.35	124.10	116.05	121.55
1825	NYSE	NPK	Wed, Jul 25, 2018	117.00	117.50	116.15	116.55
1824	NYSE	NPK	Tue, Jul 24, 2018	118.25	118.35	115.25	117.00
1823	NYSE	NPK	Mon, Jul 23, 2018	119.45	120.25	118.05	118.10
1822	NYSE	NPK	Fri, Jul 20, 2018	119.90	120.25	119.30	119.90
1821	NYSE	NPK	Thu, Jul 19, 2018	120.00	120.60	119.80	120.00
1820	NYSE	NPK	Wed, Jul 18, 2018	120.00	120.55	119.25	120.00
1819	NYSE	NPK	Tue, Jul 17, 2018	119.75	120.85	119.25	120.00
1818	NYSE	NPK	Mon, Jul 16, 2018	120.45	121.55	119.60	120.00
1817	NYSE	NPK	Fri, Jul 13, 2018	121.10	122.20	119.65	120.40
1816	NYSE	NPK	Thu, Jul 12, 2018	122.15	123.52	120.75	120.95
1815	NYSE	NPK	Wed, Jul 11, 2018	121.05	121.85	120.50	121.60
1814	NYSE	NPK	Tue, Jul 10, 2018	123.05	123.75	121.05	121.55
1813	NYSE	NPK	Mon, Jul 9, 2018	123.40	124.80	121.40	122.60
1812	NYSE	NPK	Fri, Jul 6, 2018	124.05	124.77	122.40	122.85
1811	NYSE	NPK	Thu, Jul 5, 2018	124.35	124.60	123.10	123.85
1810	NYSE	NPK	Tue, Jul 3, 2018	125.80	126.25	124.30	124.30
1809	NYSE	NPK	Mon, Jul 2, 2018	122.75	125.30	122.75	125.25
1808	NYSE	NPK	Fri, Jun 29, 2018	119.61	125.25	119.61	124.00
1807	NYSE	NPK	Thu, Jun 28, 2018	126.05	126.43	123.10	125.00
1806	NYSE	NPK	Wed, Jun 27, 2018	128.65	130.05	125.80	126.05
1805	NYSE	NPK	Tue, Jun 26, 2018	128.80	129.30	127.30	127.90
1804	NYSE	NPK	Mon, Jun 25, 2018	129.85	130.13	127.00	128.55
1803	NYSE	NPK	Fri, Jun 22, 2018	130.35	130.95	129.15	129.95
1802	NYSE	NPK	Thu, Jun 21, 2018	130.15	131.20	129.00	130.05
1801	NYSE	NPK	Wed, Jun 20, 2018	130.65	130.95	129.33	130.00
1800	NYSE	NPK	Tue, Jun 19, 2018	129.60	132.50	128.70	130.75
1799	NYSE	NPK	Mon, Jun 18, 2018	130.85	131.90	127.25	130.60
1798	NYSE	NPK	Fri, Jun 15, 2018	135.00	136.65	131.85	131.85
1797	NYSE	NPK	Thu, Jun 14, 2018	132.05	135.45	132.05	135.00
1796	NYSE	NPK	Wed, Jun 13, 2018	128.30	134.10	128.07	132.75
1795	NYSE	NPK	Tue, Jun 12, 2018	128.30	129.95	126.95	128.70
1794	NYSE	NPK	Mon, Jun 11, 2018	118.95	130.05	118.95	128.95
1793	NYSE	NPK	Fri, Jun 8, 2018	117.05	119.25	117.05	119.00
1792	NYSE	NPK	Thu, Jun 7, 2018	115.00	117.85	114.91	117.35
1791	NYSE	NPK	Wed, Jun 6, 2018	112.85	115.00	112.85	114.80
1790	NYSE	NPK	Tue, Jun 5, 2018	112.85	113.25	111.80	112.40
1789	NYSE	NPK	Mon, Jun 4, 2018	113.05	113.70	111.95	112.95
1788	NYSE	NPK	Fri, Jun 1, 2018	113.25	114.00	112.00	112.50
1787	NYSE	NPK	Thu, May 31, 2018	113.45	113.75	111.05	112.90
1786	NYSE	NPK	Wed, May 30, 2018	110.80	113.80	110.80	113.70
1785	NYSE	NPK	Tue, May 29, 2018	110.35	111.50	110.00	110.25
1784	NYSE	NPK	Fri, May 25, 2018	108.85	110.95	108.68	110.85
1783	NYSE	NPK	Thu, May 24, 2018	107.20	109.00	106.70	108.55
1782	NYSE	NPK	Wed, May 23, 2018	106.90	108.55	106.65	108.00
1781	NYSE	NPK	Tue, May 22, 2018	107.95	108.30	106.85	107.15
1780	NYSE	NPK	Mon, May 21, 2018	107.00	108.30	106.55	107.65
1779	NYSE	NPK	Fri, May 18, 2018	108.85	108.85	106.80	106.90
1778	NYSE	NPK	Thu, May 17, 2018	107.00	108.65	106.55	108.25
1777	NYSE	NPK	Wed, May 16, 2018	103.20	107.50	103.20	107.05
1776	NYSE	NPK	Tue, May 15, 2018	101.25	103.30	100.32	103.05
1775	NYSE	NPK	Mon, May 14, 2018	99.30	101.60	98.60	101.45
1774	NYSE	NPK	Fri, May 11, 2018	98.15	99.90	98.10	99.50
1773	NYSE	NPK	Thu, May 10, 2018	97.30	98.50	96.71	98.25
1772	NYSE	NPK	Wed, May 9, 2018	97.15	97.40	95.50	97.25
1771	NYSE	NPK	Tue, May 8, 2018	96.80	97.40	95.90	96.90
1770	NYSE	NPK	Mon, May 7, 2018	96.15	97.00	96.00	96.75
1769	NYSE	NPK	Fri, May 4, 2018	94.15	96.30	93.70	95.85
1768	NYSE	NPK	Thu, May 3, 2018	95.20	95.35	93.60	94.40
1767	NYSE	NPK	Wed, May 2, 2018	95.70	97.00	95.05	95.25
1766	NYSE	NPK	Tue, May 1, 2018	95.50	95.85	93.35	95.75
1765	NYSE	NPK	Mon, Apr 30, 2018	95.55	97.95	95.55	95.75
1764	NYSE	NPK	Fri, Apr 27, 2018	97.10	97.15	95.10	95.25
1763	NYSE	NPK	Thu, Apr 26, 2018	97.90	98.30	97.15	97.20
1762	NYSE	NPK	Wed, Apr 25, 2018	96.90	98.25	95.85	97.55
1761	NYSE	NPK	Tue, Apr 24, 2018	97.15	97.60	95.35	97.05
1760	NYSE	NPK	Mon, Apr 23, 2018	96.50	97.00	95.00	96.55
1759	NYSE	NPK	Fri, Apr 20, 2018	97.40	97.70	96.15	96.65
1758	NYSE	NPK	Thu, Apr 19, 2018	97.35	98.70	97.10	97.50
1757	NYSE	NPK	Wed, Apr 18, 2018	96.60	98.10	96.60	97.40
1756	NYSE	NPK	Tue, Apr 17, 2018	95.75	97.80	95.75	96.55
1755	NYSE	NPK	Mon, Apr 16, 2018	94.90	95.95	94.20	95.55
1754	NYSE	NPK	Fri, Apr 13, 2018	94.60	95.55	94.00	94.70
1753	NYSE	NPK	Thu, Apr 12, 2018	94.90	95.20	94.00	94.45
1752	NYSE	NPK	Wed, Apr 11, 2018	92.65	94.93	92.65	94.70
1751	NYSE	NPK	Tue, Apr 10, 2018	94.15	94.15	92.55	92.85
1750	NYSE	NPK	Mon, Apr 9, 2018	94.15	94.65	92.10	93.15
1749	NYSE	NPK	Fri, Apr 6, 2018	95.40	97.90	93.58	94.05
1748	NYSE	NPK	Thu, Apr 5, 2018	96.40	96.40	95.25	95.85
1747	NYSE	NPK	Wed, Apr 4, 2018	92.95	96.85	92.95	96.15
1746	NYSE	NPK	Tue, Apr 3, 2018	93.55	94.60	92.05	93.85
1745	NYSE	NPK	Mon, Apr 2, 2018	93.75	94.98	92.00	93.25
1744	NYSE	NPK	Thu, Mar 29, 2018	95.55	96.65	93.60	93.75
1743	NYSE	NPK	Wed, Mar 28, 2018	94.50	95.85	93.40	95.10
1742	NYSE	NPK	Tue, Mar 27, 2018	96.30	96.70	94.13	94.50
1741	NYSE	NPK	Mon, Mar 26, 2018	95.90	96.90	93.40	96.05
1740	NYSE	NPK	Fri, Mar 23, 2018	98.10	98.60	94.45	94.75
1739	NYSE	NPK	Thu, Mar 22, 2018	98.45	99.70	97.85	98.10
1738	NYSE	NPK	Wed, Mar 21, 2018	99.30	99.65	98.75	99.05
1737	NYSE	NPK	Tue, Mar 20, 2018	99.85	99.85	98.00	99.20
1736	NYSE	NPK	Mon, Mar 19, 2018	97.15	99.80	96.70	99.55
1735	NYSE	NPK	Fri, Mar 16, 2018	97.20	97.75	95.65	97.45
1734	NYSE	NPK	Thu, Mar 15, 2018	96.45	97.68	95.70	97.00
1733	NYSE	NPK	Wed, Mar 14, 2018	96.40	96.95	95.45	96.20
1732	NYSE	NPK	Tue, Mar 13, 2018	94.85	96.85	94.50	95.80
1731	NYSE	NPK	Mon, Mar 12, 2018	94.95	97.75	94.00	94.45
1730	NYSE	NPK	Fri, Mar 9, 2018	97.25	98.95	96.95	98.00
1729	NYSE	NPK	Thu, Mar 8, 2018	95.30	97.15	94.70	97.15
1728	NYSE	NPK	Wed, Mar 7, 2018	93.50	95.50	93.45	95.10
1727	NYSE	NPK	Tue, Mar 6, 2018	94.20	94.30	92.50	94.00
1726	NYSE	NPK	Mon, Mar 5, 2018	92.05	94.20	91.80	93.85
1725	NYSE	NPK	Fri, Mar 2, 2018	90.40	92.95	90.15	92.45
1724	NYSE	NPK	Thu, Mar 1, 2018	90.90	91.18	88.80	90.95
1723	NYSE	NPK	Wed, Feb 28, 2018	95.75	95.75	90.10	90.80
1722	NYSE	NPK	Tue, Feb 27, 2018	101.85	103.25	101.50	95.75
1721	NYSE	NPK	Mon, Feb 26, 2018	102.45	103.00	100.50	101.80
1720	NYSE	NPK	Fri, Feb 23, 2018	102.85	103.25	102.05	102.20
1719	NYSE	NPK	Thu, Feb 22, 2018	101.85	103.35	101.45	102.45
1718	NYSE	NPK	Wed, Feb 21, 2018	101.40	104.50	100.10	101.45
1717	NYSE	NPK	Tue, Feb 20, 2018	101.70	102.00	99.05	101.40
1716	NYSE	NPK	Fri, Feb 16, 2018	100.40	103.00	100.40	102.00
1715	NYSE	NPK	Thu, Feb 15, 2018	99.10	102.55	97.97	100.20
1714	NYSE	NPK	Wed, Feb 14, 2018	95.90	98.93	95.05	98.50
1713	NYSE	NPK	Tue, Feb 13, 2018	97.75	99.50	94.90	96.20
1712	NYSE	NPK	Mon, Feb 12, 2018	99.60	102.00	90.10	97.75
1711	NYSE	NPK	Fri, Feb 9, 2018	96.75	99.75	95.80	99.00
1710	NYSE	NPK	Thu, Feb 8, 2018	97.80	97.85	95.45	95.95
1709	NYSE	NPK	Wed, Feb 7, 2018	95.75	97.85	95.60	97.05
1708	NYSE	NPK	Tue, Feb 6, 2018	95.30	97.90	95.00	95.55
1707	NYSE	NPK	Mon, Feb 5, 2018	97.55	99.65	96.00	96.95
1706	NYSE	NPK	Fri, Feb 2, 2018	99.85	100.05	97.65	98.10
1705	NYSE	NPK	Thu, Feb 1, 2018	101.25	102.25	99.20	100.75
1704	NYSE	NPK	Wed, Jan 31, 2018	103.35	104.55	100.91	101.65
1703	NYSE	NPK	Tue, Jan 30, 2018	101.25	104.00	100.50	102.55
1702	NYSE	NPK	Mon, Jan 29, 2018	102.30	103.25	100.90	102.10
1701	NYSE	NPK	Fri, Jan 26, 2018	102.60	103.20	101.90	102.50
1700	NYSE	NPK	Thu, Jan 25, 2018	105.15	105.15	100.35	102.10
1699	NYSE	NPK	Wed, Jan 24, 2018	104.05	106.45	104.05	104.60
1698	NYSE	NPK	Tue, Jan 23, 2018	104.95	105.70	103.90	103.95
1697	NYSE	NPK	Mon, Jan 22, 2018	104.00	105.03	102.20	104.95
1696	NYSE	NPK	Fri, Jan 19, 2018	104.00	106.65	103.70	104.40
1695	NYSE	NPK	Thu, Jan 18, 2018	104.15	104.65	101.30	103.90
1694	NYSE	NPK	Wed, Jan 17, 2018	104.85	106.95	103.30	104.50
1693	NYSE	NPK	Tue, Jan 16, 2018	107.55	108.45	104.00	104.20
1692	NYSE	NPK	Fri, Jan 12, 2018	105.20	107.65	104.65	107.10
1691	NYSE	NPK	Thu, Jan 11, 2018	103.90	105.00	103.90	104.80
1690	NYSE	NPK	Wed, Jan 10, 2018	103.30	103.80	102.50	103.65
1689	NYSE	NPK	Tue, Jan 9, 2018	102.55	104.40	101.50	104.00
1688	NYSE	NPK	Mon, Jan 8, 2018	100.80	102.20	100.70	101.90
1687	NYSE	NPK	Fri, Jan 5, 2018	99.95	101.00	99.35	100.50
1686	NYSE	NPK	Thu, Jan 4, 2018	100.05	100.40	99.25	99.85
1685	NYSE	NPK	Wed, Jan 3, 2018	99.50	100.67	97.65	99.25
1684	NYSE	NPK	Tue, Jan 2, 2018	100.00	101.21	98.50	99.50
1683	NYSE	NPK	Fri, Dec 29, 2017	100.70	101.00	99.05	99.45
1682	NYSE	NPK	Thu, Dec 28, 2017	101.10	101.25	100.25	100.65
1681	NYSE	NPK	Wed, Dec 27, 2017	101.05	101.75	100.50	100.95
1680	NYSE	NPK	Tue, Dec 26, 2017	101.45	102.05	100.30	100.85
1679	NYSE	NPK	Fri, Dec 22, 2017	100.60	102.30	99.65	101.40
1678	NYSE	NPK	Thu, Dec 21, 2017	101.15	101.85	100.65	100.65
1677	NYSE	NPK	Wed, Dec 20, 2017	102.25	102.25	100.40	101.00
1676	NYSE	NPK	Tue, Dec 19, 2017	101.30	102.60	100.90	101.55
1675	NYSE	NPK	Mon, Dec 18, 2017	101.00	101.65	100.00	101.60
1674	NYSE	NPK	Fri, Dec 15, 2017	97.80	101.80	97.10	100.00
1673	NYSE	NPK	Thu, Dec 14, 2017	98.55	99.30	96.50	97.60
1672	NYSE	NPK	Wed, Dec 13, 2017	97.50	100.55	97.00	98.45
1671	NYSE	NPK	Tue, Dec 12, 2017	96.95	99.00	96.00	97.20
1670	NYSE	NPK	Mon, Dec 11, 2017	99.55	99.55	95.50	97.05
1669	NYSE	NPK	Fri, Dec 8, 2017	103.25	103.80	98.50	98.95
1668	NYSE	NPK	Thu, Dec 7, 2017	102.95	103.35	102.50	103.00
1667	NYSE	NPK	Wed, Dec 6, 2017	103.65	103.95	102.50	103.00
1666	NYSE	NPK	Tue, Dec 5, 2017	104.00	104.00	102.25	103.00
1665	NYSE	NPK	Mon, Dec 4, 2017	102.75	105.45	101.43	103.10
1664	NYSE	NPK	Fri, Dec 1, 2017	103.85	103.85	99.15	101.35
1663	NYSE	NPK	Thu, Nov 30, 2017	107.70	107.70	102.50	103.70
1662	NYSE	NPK	Wed, Nov 29, 2017	117.00	117.00	106.35	107.30
1661	NYSE	NPK	Tue, Nov 28, 2017	117.05	118.38	116.65	118.10
1660	NYSE	NPK	Mon, Nov 27, 2017	117.15	117.33	116.20	116.55
1659	NYSE	NPK	Fri, Nov 24, 2017	117.50	117.68	116.90	117.05
1658	NYSE	NPK	Wed, Nov 22, 2017	117.65	118.75	117.00	117.75
1657	NYSE	NPK	Tue, Nov 21, 2017	114.65	119.30	114.65	117.45
1656	NYSE	NPK	Mon, Nov 20, 2017	114.20	114.95	112.65	114.25
1655	NYSE	NPK	Fri, Nov 17, 2017	113.70	114.85	113.45	113.95
1654	NYSE	NPK	Thu, Nov 16, 2017	112.70	114.58	112.70	113.80
1653	NYSE	NPK	Wed, Nov 15, 2017	115.35	115.45	114.40	114.50
1652	NYSE	NPK	Tue, Nov 14, 2017	113.85	115.90	112.85	114.60
1651	NYSE	NPK	Mon, Nov 13, 2017	114.45	115.55	113.30	114.40
1650	NYSE	NPK	Fri, Nov 10, 2017	116.00	116.65	115.15	115.60
1649	NYSE	NPK	Thu, Nov 9, 2017	117.55	119.20	116.10	116.75
1648	NYSE	NPK	Wed, Nov 8, 2017	117.45	119.50	117.00	119.00
1647	NYSE	NPK	Tue, Nov 7, 2017	119.60	120.63	117.60	118.45
1646	NYSE	NPK	Mon, Nov 6, 2017	119.85	121.40	119.35	120.50
1645	NYSE	NPK	Fri, Nov 3, 2017	120.10	120.20	118.75	119.85
1644	NYSE	NPK	Thu, Nov 2, 2017	117.35	120.05	117.35	119.60
1643	NYSE	NPK	Wed, Nov 1, 2017	117.25	117.90	115.95	117.40
1642	NYSE	NPK	Tue, Oct 31, 2017	113.55	117.90	113.40	116.90
1641	NYSE	NPK	Mon, Oct 30, 2017	114.60	114.90	112.31	113.85
1640	NYSE	NPK	Fri, Oct 27, 2017	113.75	115.25	111.70	114.95
1639	NYSE	NPK	Thu, Oct 26, 2017	113.85	114.50	113.05	113.85
1638	NYSE	NPK	Wed, Oct 25, 2017	112.90	114.40	112.25	113.60
1637	NYSE	NPK	Tue, Oct 24, 2017	109.90	113.35	109.53	112.70
1636	NYSE	NPK	Mon, Oct 23, 2017	110.95	111.10	109.50	110.40
1635	NYSE	NPK	Fri, Oct 20, 2017	110.70	112.20	110.55	111.65
1634	NYSE	NPK	Thu, Oct 19, 2017	109.20	110.05	109.08	109.90
1633	NYSE	NPK	Wed, Oct 18, 2017	109.25	110.30	108.60	109.85
1632	NYSE	NPK	Tue, Oct 17, 2017	110.30	111.00	109.15	109.20
1631	NYSE	NPK	Mon, Oct 16, 2017	110.00	110.65	108.70	110.30
1630	NYSE	NPK	Fri, Oct 13, 2017	109.20	110.55	109.20	109.55
1629	NYSE	NPK	Thu, Oct 12, 2017	108.53	109.85	107.63	109.45
1628	NYSE	NPK	Wed, Oct 11, 2017	109.10	110.00	108.20	109.50
1627	NYSE	NPK	Tue, Oct 10, 2017	108.10	109.65	107.94	109.20
1626	NYSE	NPK	Mon, Oct 9, 2017	108.80	108.80	107.40	108.00
1625	NYSE	NPK	Fri, Oct 6, 2017	106.95	108.50	106.95	108.45
1624	NYSE	NPK	Thu, Oct 5, 2017	107.50	109.00	106.60	107.25
1623	NYSE	NPK	Wed, Oct 4, 2017	107.75	107.75	106.30	107.60
1622	NYSE	NPK	Tue, Oct 3, 2017	107.65	108.40	106.40	108.05
1621	NYSE	NPK	Mon, Oct 2, 2017	106.80	108.15	105.70	108.05
1620	NYSE	NPK	Fri, Sep 29, 2017	106.85	107.05	105.70	106.45
1619	NYSE	NPK	Thu, Sep 28, 2017	106.40	107.45	105.15	106.85
1618	NYSE	NPK	Wed, Sep 27, 2017	103.10	107.00	102.00	106.60
1617	NYSE	NPK	Tue, Sep 26, 2017	102.00	104.35	102.00	103.25
1616	NYSE	NPK	Mon, Sep 25, 2017	101.80	103.00	101.50	103.00
1615	NYSE	NPK	Fri, Sep 22, 2017	101.85	103.20	101.50	102.65
1614	NYSE	NPK	Thu, Sep 21, 2017	100.50	102.55	100.05	101.60
1613	NYSE	NPK	Wed, Sep 20, 2017	101.53	102.75	101.30	101.85
1612	NYSE	NPK	Tue, Sep 19, 2017	102.15	102.45	101.00	101.55
1611	NYSE	NPK	Mon, Sep 18, 2017	99.50	102.50	99.50	101.85
1610	NYSE	NPK	Fri, Sep 15, 2017	99.70	99.80	98.52	99.35
1609	NYSE	NPK	Thu, Sep 14, 2017	96.70	108.14	96.70	99.75
1608	NYSE	NPK	Wed, Sep 13, 2017	97.20	97.70	95.90	97.05
1607	NYSE	NPK	Tue, Sep 12, 2017	97.50	97.90	96.75	97.25
1606	NYSE	NPK	Mon, Sep 11, 2017	97.75	98.30	96.40	97.05
1605	NYSE	NPK	Fri, Sep 8, 2017	95.80	98.75	95.80	96.85
1604	NYSE	NPK	Thu, Sep 7, 2017	97.25	97.30	95.65	96.90
1603	NYSE	NPK	Wed, Sep 6, 2017	98.15	98.15	96.15	97.10
1602	NYSE	NPK	Tue, Sep 5, 2017	98.70	98.70	96.70	97.55
1601	NYSE	NPK	Fri, Sep 1, 2017	99.75	99.80	98.30	98.75
1600	NYSE	NPK	Thu, Aug 31, 2017	99.05	100.00	99.05	99.60
1599	NYSE	NPK	Wed, Aug 30, 2017	97.60	98.90	96.70	98.50
1598	NYSE	NPK	Tue, Aug 29, 2017	98.05	98.80	97.25	97.65
1597	NYSE	NPK	Mon, Aug 28, 2017	99.45	99.45	97.85	98.75
1596	NYSE	NPK	Fri, Aug 25, 2017	99.85	100.30	98.70	99.25
1595	NYSE	NPK	Thu, Aug 24, 2017	100.35	101.60	98.40	99.25
1594	NYSE	NPK	Wed, Aug 23, 2017	102.05	102.05	99.85	99.95
1593	NYSE	NPK	Tue, Aug 22, 2017	100.85	102.95	100.85	102.55
1592	NYSE	NPK	Mon, Aug 21, 2017	99.00	101.70	96.70	100.60
1591	NYSE	NPK	Fri, Aug 18, 2017	101.30	102.05	99.08	99.20
1590	NYSE	NPK	Thu, Aug 17, 2017	104.75	104.80	101.85	101.85
1589	NYSE	NPK	Wed, Aug 16, 2017	106.05	106.95	104.05	104.85
1588	NYSE	NPK	Tue, Aug 15, 2017	107.95	108.10	105.55	105.90
1587	NYSE	NPK	Mon, Aug 14, 2017	108.90	109.20	107.75	108.35
1586	NYSE	NPK	Fri, Aug 11, 2017	108.80	109.10	107.75	108.30
1585	NYSE	NPK	Thu, Aug 10, 2017	111.00	111.00	108.55	108.85
1584	NYSE	NPK	Wed, Aug 9, 2017	109.65	111.00	109.35	110.75
1583	NYSE	NPK	Tue, Aug 8, 2017	111.35	112.40	110.00	110.10
1582	NYSE	NPK	Mon, Aug 7, 2017	107.35	112.95	107.35	111.50
1581	NYSE	NPK	Fri, Aug 4, 2017	112.55	113.65	111.87	112.20
1580	NYSE	NPK	Thu, Aug 3, 2017	111.15	112.75	110.95	112.00
1579	NYSE	NPK	Wed, Aug 2, 2017	114.25	114.30	111.40	111.55
1578	NYSE	NPK	Tue, Aug 1, 2017	113.35	114.00	112.60	113.60
1577	NYSE	NPK	Mon, Jul 31, 2017	114.70	114.70	112.55	113.10
1576	NYSE	NPK	Fri, Jul 28, 2017	113.85	114.10	112.35	114.05
1575	NYSE	NPK	Thu, Jul 27, 2017	112.35	114.05	112.32	113.60
1574	NYSE	NPK	Wed, Jul 26, 2017	113.25	113.25	111.80	112.35
1573	NYSE	NPK	Tue, Jul 25, 2017	111.95	114.06	111.95	113.15
1572	NYSE	NPK	Mon, Jul 24, 2017	111.35	113.75	111.25	111.70
1571	NYSE	NPK	Fri, Jul 21, 2017	112.00	112.50	111.35	111.50
1570	NYSE	NPK	Thu, Jul 20, 2017	111.05	112.35	111.05	112.05
1569	NYSE	NPK	Wed, Jul 19, 2017	110.30	111.45	110.30	111.45
1568	NYSE	NPK	Tue, Jul 18, 2017	110.15	110.80	110.00	110.25
1567	NYSE	NPK	Mon, Jul 17, 2017	110.95	111.85	110.39	111.15
1566	NYSE	NPK	Fri, Jul 14, 2017	109.80	111.25	109.80	111.00
1565	NYSE	NPK	Thu, Jul 13, 2017	110.55	111.45	109.35	109.85
1564	NYSE	NPK	Wed, Jul 12, 2017	110.20	111.79	110.20	110.55
1563	NYSE	NPK	Tue, Jul 11, 2017	110.00	110.95	108.95	110.05
1562	NYSE	NPK	Mon, Jul 10, 2017	111.15	111.60	109.90	110.10
1561	NYSE	NPK	Fri, Jul 7, 2017	109.45	111.70	109.45	111.70
1560	NYSE	NPK	Thu, Jul 6, 2017	109.20	110.45	109.00	109.50
1559	NYSE	NPK	Wed, Jul 5, 2017	111.35	111.60	109.65	109.85
1558	NYSE	NPK	Mon, Jul 3, 2017	110.45	112.00	110.45	111.30
1557	NYSE	NPK	Fri, Jun 30, 2017	111.50	111.95	109.46	110.50
1556	NYSE	NPK	Thu, Jun 29, 2017	110.85	111.50	109.15	111.25
1555	NYSE	NPK	Wed, Jun 28, 2017	108.70	111.25	108.70	110.85
1554	NYSE	NPK	Tue, Jun 27, 2017	108.75	108.95	107.00	108.15
1553	NYSE	NPK	Mon, Jun 26, 2017	110.30	110.43	108.60	108.65
1552	NYSE	NPK	Fri, Jun 23, 2017	110.05	111.15	108.15	110.30
1551	NYSE	NPK	Thu, Jun 22, 2017	110.30	110.85	109.40	110.00
1550	NYSE	NPK	Wed, Jun 21, 2017	110.50	111.70	108.75	110.80
1549	NYSE	NPK	Tue, Jun 20, 2017	110.70	110.70	108.35	109.05
1548	NYSE	NPK	Mon, Jun 19, 2017	112.35	112.45	110.80	110.90
1547	NYSE	NPK	Fri, Jun 16, 2017	111.50	112.15	110.85	111.55
1546	NYSE	NPK	Thu, Jun 15, 2017	110.25	112.25	110.13	111.90
1545	NYSE	NPK	Wed, Jun 14, 2017	112.25	112.25	110.60	110.90
1544	NYSE	NPK	Tue, Jun 13, 2017	111.45	112.10	109.90	111.80
1543	NYSE	NPK	Mon, Jun 12, 2017	111.30	111.55	110.40	111.10
1542	NYSE	NPK	Fri, Jun 9, 2017	109.05	112.15	106.86	111.45
1541	NYSE	NPK	Thu, Jun 8, 2017	106.65	109.90	106.20	108.95
1540	NYSE	NPK	Wed, Jun 7, 2017	105.60	106.93	105.30	106.20
1539	NYSE	NPK	Tue, Jun 6, 2017	105.75	106.25	105.40	105.75
1538	NYSE	NPK	Mon, Jun 5, 2017	108.75	108.75	106.00	106.00
1537	NYSE	NPK	Fri, Jun 2, 2017	107.65	110.00	107.65	109.55
1536	NYSE	NPK	Thu, Jun 1, 2017	106.20	107.65	106.20	107.55
1535	NYSE	NPK	Wed, May 31, 2017	106.50	106.55	105.25	106.45
1534	NYSE	NPK	Tue, May 30, 2017	106.90	106.95	105.65	106.15
1533	NYSE	NPK	Fri, May 26, 2017	107.00	107.50	106.25	106.50
1532	NYSE	NPK	Thu, May 25, 2017	105.40	107.15	105.40	107.00
1531	NYSE	NPK	Wed, May 24, 2017	105.45	106.90	103.75	105.20
1530	NYSE	NPK	Tue, May 23, 2017	105.95	106.30	105.05	105.75
1529	NYSE	NPK	Mon, May 22, 2017	104.15	105.60	104.05	105.35
1528	NYSE	NPK	Fri, May 19, 2017	102.95	104.45	102.95	104.00
1527	NYSE	NPK	Thu, May 18, 2017	103.20	104.20	102.95	103.15
1526	NYSE	NPK	Wed, May 17, 2017	104.10	104.30	102.20	103.85
1525	NYSE	NPK	Tue, May 16, 2017	105.85	105.90	103.95	104.30
1524	NYSE	NPK	Mon, May 15, 2017	103.60	105.45	103.50	105.35
1523	NYSE	NPK	Fri, May 12, 2017	105.10	105.30	102.60	102.90
1522	NYSE	NPK	Thu, May 11, 2017	104.30	105.60	103.05	105.20
1521	NYSE	NPK	Wed, May 10, 2017	104.90	105.75	104.15	104.45
1520	NYSE	NPK	Tue, May 9, 2017	104.85	105.00	104.14	104.90
1519	NYSE	NPK	Mon, May 8, 2017	103.30	104.95	103.30	104.75
1518	NYSE	NPK	Fri, May 5, 2017	103.60	103.90	102.65	103.45
1517	NYSE	NPK	Thu, May 4, 2017	104.10	104.10	102.50	103.50
1516	NYSE	NPK	Wed, May 3, 2017	103.25	104.30	102.65	103.80
1515	NYSE	NPK	Tue, May 2, 2017	103.40	105.15	103.40	104.10
1514	NYSE	NPK	Mon, May 1, 2017	103.95	104.70	103.35	103.80
1513	NYSE	NPK	Fri, Apr 28, 2017	104.95	105.40	103.10	104.35
1512	NYSE	NPK	Thu, Apr 27, 2017	105.65	106.70	104.60	104.80
1511	NYSE	NPK	Wed, Apr 26, 2017	104.90	106.95	104.90	105.70
1510	NYSE	NPK	Tue, Apr 25, 2017	104.15	105.85	103.95	104.90
1509	NYSE	NPK	Mon, Apr 24, 2017	103.60	104.05	102.55	103.75
1508	NYSE	NPK	Fri, Apr 21, 2017	102.35	104.35	101.98	102.35
1507	NYSE	NPK	Thu, Apr 20, 2017	101.60	102.70	101.55	102.40
1506	NYSE	NPK	Wed, Apr 19, 2017	101.25	101.90	100.24	101.00
1505	NYSE	NPK	Tue, Apr 18, 2017	100.65	101.55	99.50	101.30
1504	NYSE	NPK	Mon, Apr 17, 2017	99.70	100.95	99.50	100.75
1503	NYSE	NPK	Thu, Apr 13, 2017	99.50	100.05	98.05	99.50
1502	NYSE	NPK	Wed, Apr 12, 2017	103.30	103.45	98.80	98.90
1501	NYSE	NPK	Tue, Apr 11, 2017	100.45	103.90	100.45	103.30
1500	NYSE	NPK	Mon, Apr 10, 2017	100.85	101.85	100.35	100.80
1499	NYSE	NPK	Fri, Apr 7, 2017	101.55	102.35	100.50	100.60
1498	NYSE	NPK	Thu, Apr 6, 2017	99.05	101.35	98.90	100.80
1497	NYSE	NPK	Wed, Apr 5, 2017	99.90	100.80	98.30	99.05
1496	NYSE	NPK	Tue, Apr 4, 2017	100.10	101.65	98.90	99.50
1495	NYSE	NPK	Mon, Apr 3, 2017	102.40	102.40	99.75	100.20
1494	NYSE	NPK	Fri, Mar 31, 2017	100.90	102.40	99.65	102.20
1493	NYSE	NPK	Thu, Mar 30, 2017	100.45	101.40	100.35	100.70
1492	NYSE	NPK	Wed, Mar 29, 2017	98.45	100.75	98.45	100.50
1491	NYSE	NPK	Tue, Mar 28, 2017	98.95	99.65	98.00	98.55
1490	NYSE	NPK	Mon, Mar 27, 2017	98.15	99.75	96.80	99.40
1489	NYSE	NPK	Fri, Mar 24, 2017	100.30	100.90	98.20	98.55
1488	NYSE	NPK	Thu, Mar 23, 2017	98.10	100.85	98.10	100.15
1487	NYSE	NPK	Wed, Mar 22, 2017	98.25	98.25	97.00	98.20
1486	NYSE	NPK	Tue, Mar 21, 2017	100.30	100.30	97.70	98.30
1485	NYSE	NPK	Mon, Mar 20, 2017	99.60	102.20	99.60	99.80
1484	NYSE	NPK	Fri, Mar 17, 2017	95.75	100.90	95.75	100.10
1483	NYSE	NPK	Thu, Mar 16, 2017	95.50	96.00	94.88	95.80
1482	NYSE	NPK	Wed, Mar 15, 2017	94.70	95.40	94.05	95.00
1481	NYSE	NPK	Tue, Mar 14, 2017	93.55	94.00	92.40	94.00
1480	NYSE	NPK	Mon, Mar 13, 2017	93.30	93.80	92.85	93.50
1479	NYSE	NPK	Fri, Mar 10, 2017	92.95	93.73	92.05	93.45
1478	NYSE	NPK	Thu, Mar 9, 2017	92.05	93.05	91.75	92.05
1477	NYSE	NPK	Wed, Mar 8, 2017	93.75	93.86	92.20	92.45
1476	NYSE	NPK	Tue, Mar 7, 2017	95.65	95.65	93.75	94.05
1475	NYSE	NPK	Mon, Mar 6, 2017	96.35	96.91	95.70	95.85
1474	NYSE	NPK	Fri, Mar 3, 2017	96.95	98.60	96.00	97.25
1473	NYSE	NPK	Thu, Mar 2, 2017	100.05	100.05	96.66	97.10
1472	NYSE	NPK	Wed, Mar 1, 2017	100.10	101.85	99.95	100.10
1471	NYSE	NPK	Tue, Feb 28, 2017	101.30	102.45	98.70	99.60
1470	NYSE	NPK	Mon, Feb 27, 2017	104.60	104.75	101.25	101.50
1469	NYSE	NPK	Fri, Feb 24, 2017	109.85	110.60	109.60	104.60
1468	NYSE	NPK	Thu, Feb 23, 2017	110.95	111.10	108.95	110.65
1467	NYSE	NPK	Wed, Feb 22, 2017	111.00	111.90	110.43	110.60
1466	NYSE	NPK	Tue, Feb 21, 2017	112.00	112.00	110.35	110.65
1465	NYSE	NPK	Fri, Feb 17, 2017	111.00	111.40	110.15	111.25
1464	NYSE	NPK	Thu, Feb 16, 2017	110.25	110.65	109.60	110.65
1463	NYSE	NPK	Wed, Feb 15, 2017	109.17	110.40	109.17	110.00
1462	NYSE	NPK	Tue, Feb 14, 2017	108.50	109.75	108.00	109.75
1461	NYSE	NPK	Mon, Feb 13, 2017	107.30	107.60	106.65	106.95
1460	NYSE	NPK	Fri, Feb 10, 2017	105.85	106.65	105.35	106.35
1459	NYSE	NPK	Thu, Feb 9, 2017	104.15	105.35	103.16	105.35
1458	NYSE	NPK	Wed, Feb 8, 2017	105.45	105.50	104.30	104.45
1457	NYSE	NPK	Tue, Feb 7, 2017	106.35	106.35	105.00	105.45
1456	NYSE	NPK	Mon, Feb 6, 2017	106.15	107.40	105.68	105.80
1455	NYSE	NPK	Fri, Feb 3, 2017	105.80	107.33	105.80	106.75
1454	NYSE	NPK	Thu, Feb 2, 2017	106.65	106.85	105.30	105.45
1453	NYSE	NPK	Wed, Feb 1, 2017	106.05	107.80	105.15	106.35
1452	NYSE	NPK	Tue, Jan 31, 2017	106.05	106.70	104.45	106.40
1451	NYSE	NPK	Mon, Jan 30, 2017	107.75	107.75	105.20	106.15
1450	NYSE	NPK	Fri, Jan 27, 2017	108.65	108.65	107.39	108.15
1449	NYSE	NPK	Thu, Jan 26, 2017	108.95	109.65	106.89	108.80
1448	NYSE	NPK	Wed, Jan 25, 2017	109.10	110.05	109.00	109.55
1447	NYSE	NPK	Tue, Jan 24, 2017	105.70	108.85	105.70	108.35
1446	NYSE	NPK	Mon, Jan 23, 2017	106.15	106.15	105.15	105.70
1445	NYSE	NPK	Fri, Jan 20, 2017	104.45	106.20	104.45	105.80
1444	NYSE	NPK	Thu, Jan 19, 2017	105.40	105.40	104.30	104.70
1443	NYSE	NPK	Wed, Jan 18, 2017	104.15	105.70	104.15	105.05
1442	NYSE	NPK	Tue, Jan 17, 2017	106.95	107.00	103.95	104.45
1441	NYSE	NPK	Fri, Jan 13, 2017	104.75	107.80	104.75	107.15
1440	NYSE	NPK	Thu, Jan 12, 2017	106.55	106.55	104.60	105.30
1439	NYSE	NPK	Wed, Jan 11, 2017	105.50	107.25	105.40	107.10
1438	NYSE	NPK	Tue, Jan 10, 2017	104.05	106.15	104.00	105.85
1437	NYSE	NPK	Mon, Jan 9, 2017	104.50	104.50	103.53	104.35
1436	NYSE	NPK	Fri, Jan 6, 2017	105.05	105.15	103.80	104.85
1435	NYSE	NPK	Thu, Jan 5, 2017	106.70	107.80	104.35	104.65
1434	NYSE	NPK	Wed, Jan 4, 2017	105.25	107.65	104.90	107.25
1433	NYSE	NPK	Tue, Jan 3, 2017	107.00	107.00	104.05	104.75
1432	NYSE	NPK	Fri, Dec 30, 2016	107.00	107.50	105.80	106.40
1431	NYSE	NPK	Thu, Dec 29, 2016	107.20	108.75	105.45	106.65
1430	NYSE	NPK	Wed, Dec 28, 2016	105.30	107.85	105.30	107.30
1429	NYSE	NPK	Tue, Dec 27, 2016	105.60	106.70	105.60	105.65
1428	NYSE	NPK	Fri, Dec 23, 2016	103.95	106.70	103.29	105.70
1427	NYSE	NPK	Thu, Dec 22, 2016	104.05	104.60	103.45	104.10
1426	NYSE	NPK	Wed, Dec 21, 2016	105.80	106.70	103.95	104.05
1425	NYSE	NPK	Tue, Dec 20, 2016	106.15	106.60	105.01	105.55
1424	NYSE	NPK	Mon, Dec 19, 2016	106.05	107.80	105.11	106.55
1423	NYSE	NPK	Fri, Dec 16, 2016	103.80	106.50	103.80	103.80
1422	NYSE	NPK	Thu, Dec 15, 2016	102.00	104.10	101.35	103.25
1421	NYSE	NPK	Wed, Dec 14, 2016	102.35	103.45	101.85	101.95
1420	NYSE	NPK	Tue, Dec 13, 2016	103.85	104.90	101.50	101.80
1419	NYSE	NPK	Mon, Dec 12, 2016	102.65	103.85	101.80	103.75
1418	NYSE	NPK	Fri, Dec 9, 2016	103.40	104.65	101.05	103.05
1417	NYSE	NPK	Thu, Dec 8, 2016	99.40	103.70	99.11	102.90
1416	NYSE	NPK	Wed, Dec 7, 2016	98.00	99.60	97.70	99.35
1415	NYSE	NPK	Tue, Dec 6, 2016	97.60	98.00	95.60	97.80
1414	NYSE	NPK	Mon, Dec 5, 2016	94.75	97.65	94.75	97.50
1413	NYSE	NPK	Fri, Dec 2, 2016	94.30	95.55	94.30	94.85
1412	NYSE	NPK	Thu, Dec 1, 2016	94.85	96.15	94.05	94.60
1411	NYSE	NPK	Wed, Nov 30, 2016	96.65	96.65	94.45	95.15
1410	NYSE	NPK	Tue, Nov 29, 2016	95.65	96.90	95.55	96.20
1409	NYSE	NPK	Mon, Nov 28, 2016	94.70	96.55	94.20	95.45
1408	NYSE	NPK	Fri, Nov 25, 2016	93.75	95.00	93.63	95.00
1407	NYSE	NPK	Wed, Nov 23, 2016	92.05	93.85	92.03	93.80
1406	NYSE	NPK	Tue, Nov 22, 2016	90.50	92.65	89.05	92.60
1405	NYSE	NPK	Mon, Nov 21, 2016	91.20	91.30	89.55	90.50
1404	NYSE	NPK	Fri, Nov 18, 2016	91.20	91.80	90.80	91.00
1403	NYSE	NPK	Thu, Nov 17, 2016	91.40	92.10	91.00	91.05
1402	NYSE	NPK	Wed, Nov 16, 2016	90.70	91.45	90.70	91.35
1401	NYSE	NPK	Tue, Nov 15, 2016	90.30	90.95	89.30	90.70
1400	NYSE	NPK	Mon, Nov 14, 2016	90.05	92.00	89.75	90.50
1399	NYSE	NPK	Fri, Nov 11, 2016	87.75	89.85	87.75	89.65
1398	NYSE	NPK	Thu, Nov 10, 2016	88.05	88.80	87.44	87.95
1397	NYSE	NPK	Wed, Nov 9, 2016	84.90	88.75	84.90	88.00
1396	NYSE	NPK	Tue, Nov 8, 2016	86.00	87.00	84.85	85.60
1395	NYSE	NPK	Mon, Nov 7, 2016	86.40	87.18	85.85	86.35
1394	NYSE	NPK	Fri, Nov 4, 2016	84.95	87.75	84.95	85.60
1393	NYSE	NPK	Thu, Nov 3, 2016	85.85	85.85	85.00	85.00
1392	NYSE	NPK	Wed, Nov 2, 2016	87.30	87.90	85.50	85.80
1391	NYSE	NPK	Tue, Nov 1, 2016	87.40	88.05	85.55	87.10
1390	NYSE	NPK	Mon, Oct 31, 2016	87.95	87.95	85.60	87.25
1389	NYSE	NPK	Fri, Oct 28, 2016	87.15	88.20	87.00	87.55
1388	NYSE	NPK	Thu, Oct 27, 2016	86.95	87.60	85.20	87.20
1387	NYSE	NPK	Wed, Oct 26, 2016	86.25	87.70	86.15	86.50
1386	NYSE	NPK	Tue, Oct 25, 2016	86.80	88.00	85.75	86.50
1385	NYSE	NPK	Mon, Oct 24, 2016	85.55	87.30	85.15	87.00
1384	NYSE	NPK	Fri, Oct 21, 2016	85.10	85.40	84.20	85.35
1383	NYSE	NPK	Thu, Oct 20, 2016	86.35	86.35	85.00	85.65
1382	NYSE	NPK	Wed, Oct 19, 2016	85.50	86.70	85.50	86.25
1381	NYSE	NPK	Tue, Oct 18, 2016	87.00	87.10	85.30	85.90
1380	NYSE	NPK	Mon, Oct 17, 2016	86.00	87.30	85.30	86.45
1379	NYSE	NPK	Fri, Oct 14, 2016	85.44	86.24	84.86	86.05
1378	NYSE	NPK	Thu, Oct 13, 2016	84.31	85.57	83.67	84.88
1377	NYSE	NPK	Wed, Oct 12, 2016	84.11	85.30	84.00	84.69
1376	NYSE	NPK	Tue, Oct 11, 2016	86.18	86.30	83.53	84.44
1375	NYSE	NPK	Mon, Oct 10, 2016	86.09	86.45	85.52	86.01
1374	NYSE	NPK	Fri, Oct 7, 2016	86.59	86.60	85.50	85.62
1373	NYSE	NPK	Thu, Oct 6, 2016	86.09	86.70	85.52	86.65
1372	NYSE	NPK	Wed, Oct 5, 2016	86.39	86.68	86.07	86.45
1371	NYSE	NPK	Tue, Oct 4, 2016	87.13	87.20	85.69	85.91
1370	NYSE	NPK	Mon, Oct 3, 2016	87.48	87.50	86.74	87.45
1369	NYSE	NPK	Fri, Sep 30, 2016	87.22	88.19	86.68	87.79
1368	NYSE	NPK	Thu, Sep 29, 2016	88.35	88.88	86.23	86.80
1367	NYSE	NPK	Wed, Sep 28, 2016	88.62	88.76	87.80	88.30
1366	NYSE	NPK	Tue, Sep 27, 2016	87.93	90.31	87.88	88.65
1365	NYSE	NPK	Mon, Sep 26, 2016	90.10	90.10	87.98	88.11
1364	NYSE	NPK	Fri, Sep 23, 2016	91.50	91.50	89.68	90.05
1363	NYSE	NPK	Thu, Sep 22, 2016	89.23	91.54	89.23	91.52
1362	NYSE	NPK	Wed, Sep 21, 2016	86.77	89.17	86.77	89.00
1361	NYSE	NPK	Tue, Sep 20, 2016	87.22	87.74	86.34	86.89
1360	NYSE	NPK	Mon, Sep 19, 2016	86.46	87.30	86.07	86.90
1359	NYSE	NPK	Fri, Sep 16, 2016	86.54	88.29	85.50	86.43
1358	NYSE	NPK	Thu, Sep 15, 2016	85.52	86.77	85.27	86.54
1357	NYSE	NPK	Wed, Sep 14, 2016	86.37	86.40	85.13	85.14
1356	NYSE	NPK	Tue, Sep 13, 2016	87.37	88.42	86.05	86.59
1355	NYSE	NPK	Mon, Sep 12, 2016	86.46	88.03	86.46	87.73
1354	NYSE	NPK	Fri, Sep 9, 2016	88.77	88.77	86.91	87.00
1353	NYSE	NPK	Thu, Sep 8, 2016	89.06	89.51	88.04	89.40
1352	NYSE	NPK	Wed, Sep 7, 2016	88.99	89.20	88.41	88.96
1351	NYSE	NPK	Tue, Sep 6, 2016	88.23	88.93	87.19	88.68
1350	NYSE	NPK	Fri, Sep 2, 2016	87.62	88.54	87.62	88.31
1349	NYSE	NPK	Thu, Sep 1, 2016	87.48	87.48	86.44	87.38
1348	NYSE	NPK	Wed, Aug 31, 2016	87.78	87.82	86.05	87.26
1347	NYSE	NPK	Tue, Aug 30, 2016	87.68	88.50	87.09	88.10
1346	NYSE	NPK	Mon, Aug 29, 2016	88.54	89.00	87.68	87.71
1345	NYSE	NPK	Fri, Aug 26, 2016	89.86	90.50	88.17	88.59
1344	NYSE	NPK	Thu, Aug 25, 2016	89.76	90.40	88.55	89.76
1343	NYSE	NPK	Wed, Aug 24, 2016	91.00	91.23	89.36	89.53
1342	NYSE	NPK	Tue, Aug 23, 2016	92.94	93.69	90.83	90.90
1341	NYSE	NPK	Mon, Aug 22, 2016	93.62	94.48	92.45	93.12
1340	NYSE	NPK	Fri, Aug 19, 2016	93.79	94.72	93.17	93.84
1339	NYSE	NPK	Thu, Aug 18, 2016	93.57	95.00	93.12	93.85
1338	NYSE	NPK	Wed, Aug 17, 2016	93.76	93.76	92.48	93.38
1337	NYSE	NPK	Tue, Aug 16, 2016	94.45	95.13	92.81	93.71
1336	NYSE	NPK	Mon, Aug 15, 2016	91.69	95.55	91.61	94.88
1335	NYSE	NPK	Fri, Aug 12, 2016	91.57	91.79	90.80	91.48
1334	NYSE	NPK	Thu, Aug 11, 2016	91.25	91.99	91.20	91.40
1333	NYSE	NPK	Wed, Aug 10, 2016	91.89	92.00	91.22	91.53
1332	NYSE	NPK	Tue, Aug 9, 2016	90.71	92.06	90.71	91.87
1331	NYSE	NPK	Mon, Aug 8, 2016	91.76	92.33	90.54	90.89
1330	NYSE	NPK	Fri, Aug 5, 2016	91.59	92.82	91.59	92.15
1329	NYSE	NPK	Thu, Aug 4, 2016	90.73	92.19	90.52	91.16
1328	NYSE	NPK	Wed, Aug 3, 2016	89.11	91.20	89.11	90.93
1327	NYSE	NPK	Tue, Aug 2, 2016	90.65	91.99	88.56	89.15
1326	NYSE	NPK	Mon, Aug 1, 2016	89.54	91.65	89.51	91.19
1325	NYSE	NPK	Fri, Jul 29, 2016	90.86	91.80	89.38	89.54
1324	NYSE	NPK	Thu, Jul 28, 2016	91.21	92.70	90.40	91.02
1323	NYSE	NPK	Wed, Jul 27, 2016	91.10	93.20	90.17	91.71
1322	NYSE	NPK	Tue, Jul 26, 2016	91.45	92.52	91.10	91.37
1321	NYSE	NPK	Mon, Jul 25, 2016	91.99	93.55	91.09	91.60
1320	NYSE	NPK	Fri, Jul 22, 2016	92.47	93.49	91.97	92.29
1319	NYSE	NPK	Thu, Jul 21, 2016	93.08	93.42	92.21	92.84
1318	NYSE	NPK	Wed, Jul 20, 2016	93.13	93.67	93.11	93.16
1317	NYSE	NPK	Tue, Jul 19, 2016	93.10	94.10	93.04	93.07
1316	NYSE	NPK	Mon, Jul 18, 2016	93.26	93.96	93.07	93.17
1315	NYSE	NPK	Fri, Jul 15, 2016	93.84	94.56	93.24	93.27
1314	NYSE	NPK	Thu, Jul 14, 2016	95.68	95.80	93.18	93.28
1313	NYSE	NPK	Wed, Jul 13, 2016	95.86	95.86	94.65	95.42
1312	NYSE	NPK	Tue, Jul 12, 2016	95.47	96.25	94.49	95.67
1311	NYSE	NPK	Mon, Jul 11, 2016	95.32	95.93	95.09	95.47
1310	NYSE	NPK	Fri, Jul 8, 2016	94.22	95.71	93.21	95.47
1309	NYSE	NPK	Thu, Jul 7, 2016	94.24	94.79	93.00	93.30
1308	NYSE	NPK	Wed, Jul 6, 2016	93.41	94.78	93.41	94.50
1307	NYSE	NPK	Tue, Jul 5, 2016	93.55	94.32	93.38	94.06
1306	NYSE	NPK	Fri, Jul 1, 2016	94.28	94.98	93.18	94.08
1305	NYSE	NPK	Thu, Jun 30, 2016	90.39	94.35	90.12	94.35
1304	NYSE	NPK	Wed, Jun 29, 2016	88.61	91.25	88.61	90.62
1303	NYSE	NPK	Tue, Jun 28, 2016	88.27	88.99	87.94	88.47
1302	NYSE	NPK	Mon, Jun 27, 2016	86.59	88.42	86.50	88.02
1301	NYSE	NPK	Fri, Jun 24, 2016	87.93	88.40	86.35	87.76
1300	NYSE	NPK	Thu, Jun 23, 2016	89.37	90.50	88.25	88.47
1299	NYSE	NPK	Wed, Jun 22, 2016	89.97	90.50	88.34	88.52
1298	NYSE	NPK	Tue, Jun 21, 2016	90.21	90.85	89.15	89.63
1297	NYSE	NPK	Mon, Jun 20, 2016	91.53	92.33	90.06	90.20
1296	NYSE	NPK	Fri, Jun 17, 2016	91.31	91.50	89.21	90.35
1295	NYSE	NPK	Thu, Jun 16, 2016	90.27	92.07	89.37	91.53
1294	NYSE	NPK	Wed, Jun 15, 2016	91.11	92.05	90.45	91.19
1293	NYSE	NPK	Tue, Jun 14, 2016	90.67	91.51	90.36	90.98
1292	NYSE	NPK	Mon, Jun 13, 2016	90.47	92.39	90.19	90.66
1291	NYSE	NPK	Fri, Jun 10, 2016	91.34	91.36	90.29	90.83
1290	NYSE	NPK	Thu, Jun 9, 2016	92.00	92.81	91.06	92.25
1289	NYSE	NPK	Wed, Jun 8, 2016	92.09	92.99	89.83	92.26
1288	NYSE	NPK	Tue, Jun 7, 2016	92.31	93.17	91.51	91.69
1287	NYSE	NPK	Mon, Jun 6, 2016	90.94	92.46	90.47	92.23
1286	NYSE	NPK	Fri, Jun 3, 2016	90.55	91.40	90.31	90.66
1285	NYSE	NPK	Thu, Jun 2, 2016	89.60	91.03	89.08	90.89
1284	NYSE	NPK	Wed, Jun 1, 2016	88.66	89.64	88.40	89.44
1283	NYSE	NPK	Tue, May 31, 2016	89.75	90.46	88.62	89.40
1282	NYSE	NPK	Fri, May 27, 2016	89.91	91.04	89.72	90.23
1281	NYSE	NPK	Thu, May 26, 2016	90.20	90.56	89.15	89.85
1280	NYSE	NPK	Wed, May 25, 2016	90.20	91.12	89.40	89.93
1279	NYSE	NPK	Tue, May 24, 2016	87.57	90.44	87.04	90.19
1278	NYSE	NPK	Mon, May 23, 2016	87.54	89.03	86.70	87.48
1277	NYSE	NPK	Fri, May 20, 2016	86.36	89.26	86.36	88.31
1276	NYSE	NPK	Thu, May 19, 2016	86.99	87.31	86.12	86.22
1275	NYSE	NPK	Wed, May 18, 2016	86.81	89.69	86.12	87.39
1274	NYSE	NPK	Tue, May 17, 2016	87.84	88.10	85.52	87.04
1273	NYSE	NPK	Mon, May 16, 2016	87.45	88.47	87.18	87.54
1272	NYSE	NPK	Fri, May 13, 2016	87.42	88.60	86.33	87.17
1271	NYSE	NPK	Thu, May 12, 2016	88.65	88.88	86.97	87.78
1270	NYSE	NPK	Wed, May 11, 2016	89.09	89.43	88.42	88.65
1269	NYSE	NPK	Tue, May 10, 2016	88.77	89.25	87.92	89.25
1268	NYSE	NPK	Mon, May 9, 2016	87.47	88.89	87.47	88.23
1267	NYSE	NPK	Fri, May 6, 2016	86.00	87.72	85.95	87.65
1266	NYSE	NPK	Thu, May 5, 2016	86.55	87.19	85.00	85.95
1265	NYSE	NPK	Wed, May 4, 2016	86.53	87.41	85.31	86.16
1264	NYSE	NPK	Tue, May 3, 2016	88.00	88.01	86.86	87.19
1263	NYSE	NPK	Mon, May 2, 2016	87.56	88.80	85.94	88.47
1262	NYSE	NPK	Fri, Apr 29, 2016	86.71	87.31	86.16	87.19
1261	NYSE	NPK	Thu, Apr 28, 2016	87.44	88.37	86.57	87.19
1260	NYSE	NPK	Wed, Apr 27, 2016	87.35	88.20	86.11	87.37
1259	NYSE	NPK	Tue, Apr 26, 2016	86.40	87.91	86.40	87.43
1258	NYSE	NPK	Mon, Apr 25, 2016	85.59	86.59	85.01	86.32
1257	NYSE	NPK	Fri, Apr 22, 2016	85.71	86.00	85.06	85.55
1256	NYSE	NPK	Thu, Apr 21, 2016	84.00	85.63	84.00	85.14
1255	NYSE	NPK	Wed, Apr 20, 2016	85.76	86.00	84.36	84.36
1254	NYSE	NPK	Tue, Apr 19, 2016	85.69	85.82	84.75	85.30
1253	NYSE	NPK	Mon, Apr 18, 2016	85.92	87.05	85.00	85.56
1252	NYSE	NPK	Fri, Apr 15, 2016	84.65	86.50	84.65	86.40
1251	NYSE	NPK	Thu, Apr 14, 2016	84.03	85.79	84.00	85.20
1250	NYSE	NPK	Wed, Apr 13, 2016	84.16	84.46	83.51	84.33
1249	NYSE	NPK	Tue, Apr 12, 2016	83.83	84.06	82.75	83.25
1248	NYSE	NPK	Mon, Apr 11, 2016	83.74	84.79	83.35	83.52
1247	NYSE	NPK	Fri, Apr 8, 2016	83.12	84.01	82.27	83.66
1246	NYSE	NPK	Thu, Apr 7, 2016	83.48	84.17	81.96	82.81
1245	NYSE	NPK	Wed, Apr 6, 2016	83.80	84.43	82.76	83.92
1244	NYSE	NPK	Tue, Apr 5, 2016	86.61	86.61	86.61	83.76
1243	NYSE	NPK	Mon, Apr 4, 2016	84.29	88.47	84.29	86.61
1242	NYSE	NPK	Fri, Apr 1, 2016	83.47	84.56	83.04	84.07
1241	NYSE	NPK	Thu, Mar 31, 2016	84.34	85.25	83.54	83.74
1240	NYSE	NPK	Wed, Mar 30, 2016	85.49	85.77	84.10	84.24
1239	NYSE	NPK	Tue, Mar 29, 2016	83.78	85.46	83.36	85.76
1238	NYSE	NPK	Mon, Mar 28, 2016	85.21	85.33	83.38	84.24
1237	NYSE	NPK	Thu, Mar 24, 2016	82.74	84.94	81.38	84.94
1236	NYSE	NPK	Wed, Mar 23, 2016	85.68	85.68	83.11	83.16
1235	NYSE	NPK	Tue, Mar 22, 2016	84.34	86.36	83.98	85.72
1234	NYSE	NPK	Mon, Mar 21, 2016	85.62	85.81	83.95	84.04
1233	NYSE	NPK	Fri, Mar 18, 2016	86.25	87.52	85.85	86.02
1232	NYSE	NPK	Thu, Mar 17, 2016	82.00	86.30	81.76	85.75
1231	NYSE	NPK	Wed, Mar 16, 2016	81.29	82.36	81.29	81.64
1230	NYSE	NPK	Tue, Mar 15, 2016	80.90	80.90	80.90	81.45
1229	NYSE	NPK	Mon, Mar 14, 2016	81.55	81.55	80.61	80.86
1228	NYSE	NPK	Fri, Mar 11, 2016	81.00	81.80	80.57	81.34
1227	NYSE	NPK	Thu, Mar 10, 2016	80.29	81.40	78.95	79.97
1226	NYSE	NPK	Wed, Mar 9, 2016	79.80	79.80	79.80	79.69
1225	NYSE	NPK	Tue, Mar 8, 2016	80.12	81.20	79.18	79.80
1224	NYSE	NPK	Mon, Mar 7, 2016	80.92	81.64	79.50	80.38
1223	NYSE	NPK	Fri, Mar 4, 2016	81.95	81.95	81.95	81.44
1222	NYSE	NPK	Thu, Mar 3, 2016	79.32	79.32	79.32	81.95
1221	NYSE	NPK	Wed, Mar 2, 2016	81.96	81.96	78.91	79.32
1220	NYSE	NPK	Tue, Mar 1, 2016	81.40	81.40	81.40	82.10
1219	NYSE	NPK	Mon, Feb 29, 2016	80.84	82.04	80.65	81.40
1218	NYSE	NPK	Fri, Feb 26, 2016	86.55	86.55	86.55	81.00
1217	NYSE	NPK	Thu, Feb 25, 2016	87.46	88.00	85.95	86.55
1216	NYSE	NPK	Wed, Feb 24, 2016	83.46	87.60	83.46	87.08
1215	NYSE	NPK	Tue, Feb 23, 2016	83.26	84.79	82.75	83.91
1214	NYSE	NPK	Mon, Feb 22, 2016	82.84	84.28	82.35	83.34
1213	NYSE	NPK	Fri, Feb 19, 2016	81.20	82.25	81.10	81.69
1212	NYSE	NPK	Thu, Feb 18, 2016	80.41	81.29	79.95	81.05
1211	NYSE	NPK	Wed, Feb 17, 2016	80.80	81.80	79.54	80.25
1210	NYSE	NPK	Tue, Feb 16, 2016	78.50	81.50	78.01	80.72
1209	NYSE	NPK	Fri, Feb 12, 2016	80.03	80.03	77.02	78.33
1208	NYSE	NPK	Thu, Feb 11, 2016	78.33	78.85	76.90	78.42
1207	NYSE	NPK	Wed, Feb 10, 2016	81.38	82.39	79.24	79.78
1206	NYSE	NPK	Tue, Feb 9, 2016	78.72	81.29	78.72	80.63
1205	NYSE	NPK	Mon, Feb 8, 2016	76.25	79.87	75.73	79.86
1204	NYSE	NPK	Fri, Feb 5, 2016	78.37	78.84	76.35	76.61
1203	NYSE	NPK	Thu, Feb 4, 2016	78.20	78.68	77.36	78.01
1202	NYSE	NPK	Wed, Feb 3, 2016	76.93	79.32	76.55	77.94
1201	NYSE	NPK	Tue, Feb 2, 2016	77.46	78.32	75.30	76.29
1200	NYSE	NPK	Mon, Feb 1, 2016	78.61	78.89	76.58	77.84
1199	NYSE	NPK	Fri, Jan 29, 2016	77.36	79.09	77.07	79.09
1198	NYSE	NPK	Thu, Jan 28, 2016	76.26	77.20	75.48	76.73
1197	NYSE	NPK	Wed, Jan 27, 2016	76.88	77.53	75.31	75.31
1196	NYSE	NPK	Tue, Jan 26, 2016	75.37	77.78	75.37	77.53
1195	NYSE	NPK	Mon, Jan 25, 2016	75.88	77.00	75.03	75.37
1194	NYSE	NPK	Fri, Jan 22, 2016	75.88	76.95	74.10	75.86
1193	NYSE	NPK	Thu, Jan 21, 2016	76.54	77.20	73.86	75.40
1192	NYSE	NPK	Wed, Jan 20, 2016	74.05	77.07	72.30	76.04
1191	NYSE	NPK	Tue, Jan 19, 2016	77.18	77.84	74.02	75.12
1190	NYSE	NPK	Fri, Jan 15, 2016	74.87	76.61	73.72	76.42
1189	NYSE	NPK	Thu, Jan 14, 2016	75.36	78.03	74.96	76.57
1188	NYSE	NPK	Wed, Jan 13, 2016	77.30	77.30	74.75	75.31
1187	NYSE	NPK	Tue, Jan 12, 2016	76.88	79.30	75.55	76.93
1186	NYSE	NPK	Mon, Jan 11, 2016	76.50	77.98	75.42	76.60
1185	NYSE	NPK	Fri, Jan 8, 2016	76.67	79.20	75.44	76.01
1184	NYSE	NPK	Thu, Jan 7, 2016	76.67	77.55	75.43	76.58
1183	NYSE	NPK	Wed, Jan 6, 2016	78.32	80.59	77.53	78.33
1182	NYSE	NPK	Tue, Jan 5, 2016	79.33	80.89	78.08	78.91
1181	NYSE	NPK	Mon, Jan 4, 2016	81.97	81.97	78.23	79.33
1180	NYSE	NPK	Thu, Dec 31, 2015	83.24	83.82	81.80	82.86
1179	NYSE	NPK	Wed, Dec 30, 2015	82.95	83.83	81.10	83.66
1178	NYSE	NPK	Tue, Dec 29, 2015	81.73	83.93	81.13	82.97
1177	NYSE	NPK	Mon, Dec 28, 2015	82.59	83.22	80.05	81.40
1176	NYSE	NPK	Thu, Dec 24, 2015	81.96	83.73	81.81	82.92
1175	NYSE	NPK	Wed, Dec 23, 2015	82.97	84.77	81.85	82.92
1174	NYSE	NPK	Tue, Dec 22, 2015	80.22	83.66	79.11	83.28
1173	NYSE	NPK	Mon, Dec 21, 2015	79.13	80.50	78.62	80.39
1172	NYSE	NPK	Fri, Dec 18, 2015	80.26	81.11	78.13	78.13
1171	NYSE	NPK	Thu, Dec 17, 2015	83.25	83.27	80.68	80.89
1170	NYSE	NPK	Wed, Dec 16, 2015	82.72	83.30	80.98	82.73
1169	NYSE	NPK	Tue, Dec 15, 2015	81.14	82.89	80.51	82.55
1168	NYSE	NPK	Mon, Dec 14, 2015	81.68	83.44	80.01	80.34
1167	NYSE	NPK	Fri, Dec 11, 2015	81.70	83.49	81.70	82.66
1166	NYSE	NPK	Thu, Dec 10, 2015	81.93	84.19	81.50	82.76
1165	NYSE	NPK	Wed, Dec 9, 2015	84.47	84.65	81.44	81.93
1164	NYSE	NPK	Tue, Dec 8, 2015	85.10	85.61	84.63	84.77
1163	NYSE	NPK	Mon, Dec 7, 2015	86.25	86.65	85.62	86.06
1162	NYSE	NPK	Fri, Dec 4, 2015	86.24	88.12	86.06	86.42
1161	NYSE	NPK	Thu, Dec 3, 2015	89.01	89.54	85.91	86.50
1160	NYSE	NPK	Wed, Dec 2, 2015	89.57	90.91	89.00	89.19
1159	NYSE	NPK	Tue, Dec 1, 2015	87.02	90.40	87.02	90.04
1158	NYSE	NPK	Mon, Nov 30, 2015	89.28	89.33	86.59	86.94
1157	NYSE	NPK	Fri, Nov 27, 2015	88.98	89.19	88.37	88.82
1156	NYSE	NPK	Wed, Nov 25, 2015	89.75	90.65	88.31	88.56
1155	NYSE	NPK	Tue, Nov 24, 2015	92.12	92.12	89.17	89.68
1154	NYSE	NPK	Mon, Nov 23, 2015	93.00	94.18	92.54	93.26
1153	NYSE	NPK	Fri, Nov 20, 2015	90.06	93.47	90.00	93.44
1152	NYSE	NPK	Thu, Nov 19, 2015	88.92	90.19	88.34	89.74
1151	NYSE	NPK	Wed, Nov 18, 2015	86.88	89.27	86.39	88.98
1150	NYSE	NPK	Tue, Nov 17, 2015	86.27	87.30	85.04	86.55
1149	NYSE	NPK	Mon, Nov 16, 2015	84.07	85.96	84.07	85.71
1148	NYSE	NPK	Fri, Nov 13, 2015	86.49	86.49	83.73	84.11
1147	NYSE	NPK	Thu, Nov 12, 2015	88.50	88.50	85.59	86.10
1146	NYSE	NPK	Wed, Nov 11, 2015	87.85	89.27	87.70	88.89
1145	NYSE	NPK	Tue, Nov 10, 2015	87.95	89.15	87.22	87.85
1144	NYSE	NPK	Mon, Nov 9, 2015	89.51	89.64	88.16	88.21
1143	NYSE	NPK	Fri, Nov 6, 2015	89.14	89.65	87.88	89.48
1142	NYSE	NPK	Thu, Nov 5, 2015	88.47	89.25	87.77	88.45
1141	NYSE	NPK	Wed, Nov 4, 2015	88.69	89.30	87.69	88.48
1140	NYSE	NPK	Tue, Nov 3, 2015	87.70	89.43	87.52	88.79
1139	NYSE	NPK	Mon, Nov 2, 2015	88.49	88.84	87.47	88.05
1138	NYSE	NPK	Fri, Oct 30, 2015	89.15	89.40	87.52	88.05
1137	NYSE	NPK	Thu, Oct 29, 2015	89.43	89.48	88.48	88.87
1136	NYSE	NPK	Wed, Oct 28, 2015	87.77	89.63	87.25	89.50
1135	NYSE	NPK	Tue, Oct 27, 2015	88.17	89.93	87.40	87.49
1134	NYSE	NPK	Mon, Oct 26, 2015	90.51	90.64	86.83	87.99
1133	NYSE	NPK	Fri, Oct 23, 2015	91.34	91.82	90.11	90.89
1132	NYSE	NPK	Thu, Oct 22, 2015	89.96	91.78	87.97	91.14
1131	NYSE	NPK	Wed, Oct 21, 2015	90.15	92.40	89.55	89.72
1130	NYSE	NPK	Tue, Oct 20, 2015	89.80	90.60	89.30	90.21
1129	NYSE	NPK	Mon, Oct 19, 2015	87.23	89.89	85.85	89.58
1128	NYSE	NPK	Fri, Oct 16, 2015	87.83	88.15	86.13	87.84
1127	NYSE	NPK	Thu, Oct 15, 2015	88.45	88.80	85.99	87.54
1126	NYSE	NPK	Wed, Oct 14, 2015	89.07	89.74	87.60	87.76
1125	NYSE	NPK	Tue, Oct 13, 2015	89.31	90.13	88.85	89.29
1124	NYSE	NPK	Mon, Oct 12, 2015	88.59	89.87	88.07	89.37
1123	NYSE	NPK	Fri, Oct 9, 2015	88.00	88.75	87.91	88.37
1122	NYSE	NPK	Thu, Oct 8, 2015	86.99	88.89	86.58	88.57
1121	NYSE	NPK	Wed, Oct 7, 2015	86.36	87.80	86.05	86.84
1120	NYSE	NPK	Tue, Oct 6, 2015	86.77	87.89	86.04	86.48
1119	NYSE	NPK	Mon, Oct 5, 2015	84.57	87.85	84.57	87.80
1118	NYSE	NPK	Fri, Oct 2, 2015	85.17	85.51	83.55	84.29
1117	NYSE	NPK	Thu, Oct 1, 2015	84.17	87.40	83.23	86.10
1116	NYSE	NPK	Wed, Sep 30, 2015	84.80	85.44	83.60	84.26
1115	NYSE	NPK	Tue, Sep 29, 2015	85.48	85.73	83.26	84.43
1114	NYSE	NPK	Mon, Sep 28, 2015	87.00	87.21	85.50	85.59
1113	NYSE	NPK	Fri, Sep 25, 2015	86.35	88.00	85.39	87.95
1112	NYSE	NPK	Thu, Sep 24, 2015	84.96	86.20	84.76	85.75
1111	NYSE	NPK	Wed, Sep 23, 2015	84.97	85.79	84.04	85.23
1110	NYSE	NPK	Tue, Sep 22, 2015	85.00	85.78	84.46	84.73
1109	NYSE	NPK	Mon, Sep 21, 2015	84.80	86.28	84.80	85.82
1108	NYSE	NPK	Fri, Sep 18, 2015	85.22	86.80	83.97	84.71
1107	NYSE	NPK	Thu, Sep 17, 2015	85.15	86.89	84.50	86.50
1106	NYSE	NPK	Wed, Sep 16, 2015	84.00	85.59	83.94	85.24
1105	NYSE	NPK	Tue, Sep 15, 2015	83.75	84.00	83.30	84.00
1104	NYSE	NPK	Mon, Sep 14, 2015	83.23	83.75	81.89	83.68
1103	NYSE	NPK	Fri, Sep 11, 2015	83.29	83.58	82.71	83.32
1102	NYSE	NPK	Thu, Sep 10, 2015	83.10	83.66	82.07	83.48
1101	NYSE	NPK	Wed, Sep 9, 2015	83.31	83.51	82.65	83.10
1100	NYSE	NPK	Tue, Sep 8, 2015	82.07	83.49	81.21	82.90
1099	NYSE	NPK	Fri, Sep 4, 2015	79.97	81.95	79.97	81.55
1098	NYSE	NPK	Thu, Sep 3, 2015	80.57	81.95	80.00	80.32
1097	NYSE	NPK	Wed, Sep 2, 2015	79.81	81.00	79.81	80.59
1096	NYSE	NPK	Tue, Sep 1, 2015	80.65	81.94	78.64	79.41
1095	NYSE	NPK	Mon, Aug 31, 2015	79.17	82.87	78.72	82.05
1094	NYSE	NPK	Fri, Aug 28, 2015	79.40	80.21	79.14	79.55
1093	NYSE	NPK	Thu, Aug 27, 2015	80.30	81.16	78.73	79.82
1092	NYSE	NPK	Wed, Aug 26, 2015	76.07	79.94	75.10	79.22
1091	NYSE	NPK	Tue, Aug 25, 2015	79.88	79.88	74.57	75.08
1090	NYSE	NPK	Mon, Aug 24, 2015	70.50	79.30	63.45	78.64
1089	NYSE	NPK	Fri, Aug 21, 2015	81.19	81.19	78.61	80.28
1088	NYSE	NPK	Thu, Aug 20, 2015	83.59	83.71	82.39	82.65
1087	NYSE	NPK	Wed, Aug 19, 2015	83.69	84.73	82.04	83.83
1086	NYSE	NPK	Tue, Aug 18, 2015	82.86	84.89	81.70	83.91
1085	NYSE	NPK	Mon, Aug 17, 2015	80.84	82.95	80.45	82.95
1084	NYSE	NPK	Fri, Aug 14, 2015	80.01	81.29	80.01	81.29
1083	NYSE	NPK	Thu, Aug 13, 2015	80.24	80.71	79.91	80.23
1082	NYSE	NPK	Wed, Aug 12, 2015	79.12	81.00	79.12	80.08
1081	NYSE	NPK	Tue, Aug 11, 2015	79.35	80.45	78.71	80.44
1080	NYSE	NPK	Mon, Aug 10, 2015	79.85	81.24	79.43	80.37
1079	NYSE	NPK	Fri, Aug 7, 2015	80.99	81.79	79.67	79.72
1078	NYSE	NPK	Thu, Aug 6, 2015	80.72	81.16	80.38	81.05
1077	NYSE	NPK	Wed, Aug 5, 2015	80.62	80.98	80.25	80.44
1076	NYSE	NPK	Tue, Aug 4, 2015	79.20	80.70	78.98	80.60
1075	NYSE	NPK	Mon, Aug 3, 2015	78.85	80.17	78.30	78.87
1074	NYSE	NPK	Fri, Jul 31, 2015	80.50	80.50	78.69	79.16
1073	NYSE	NPK	Thu, Jul 30, 2015	79.17	80.61	79.17	80.37
1072	NYSE	NPK	Wed, Jul 29, 2015	78.90	80.00	78.34	79.52
1071	NYSE	NPK	Tue, Jul 28, 2015	79.40	79.50	78.44	78.77
1070	NYSE	NPK	Mon, Jul 27, 2015	79.78	80.00	77.64	79.01
1069	NYSE	NPK	Fri, Jul 24, 2015	78.98	80.09	77.16	79.99
1068	NYSE	NPK	Thu, Jul 23, 2015	80.44	80.84	79.00	79.17
1067	NYSE	NPK	Wed, Jul 22, 2015	79.38	80.63	79.22	80.44
1066	NYSE	NPK	Tue, Jul 21, 2015	79.90	80.40	79.00	79.33
1065	NYSE	NPK	Mon, Jul 20, 2015	80.64	80.64	78.62	79.55
1064	NYSE	NPK	Fri, Jul 17, 2015	79.40	80.97	79.40	80.05
1063	NYSE	NPK	Thu, Jul 16, 2015	79.48	79.66	79.01	79.31
1062	NYSE	NPK	Wed, Jul 15, 2015	78.76	80.00	78.66	78.84
1061	NYSE	NPK	Tue, Jul 14, 2015	79.49	79.77	78.86	79.15
1060	NYSE	NPK	Mon, Jul 13, 2015	78.75	79.25	78.56	79.18
1059	NYSE	NPK	Fri, Jul 10, 2015	78.51	78.85	78.04	78.56
1058	NYSE	NPK	Thu, Jul 9, 2015	77.90	79.11	77.75	78.00
1057	NYSE	NPK	Wed, Jul 8, 2015	78.21	78.49	77.53	77.90
1056	NYSE	NPK	Tue, Jul 7, 2015	78.48	78.91	77.45	78.43
1055	NYSE	NPK	Mon, Jul 6, 2015	77.52	78.46	77.19	78.12
1054	NYSE	NPK	Thu, Jul 2, 2015	81.74	82.05	77.42	78.28
1053	NYSE	NPK	Wed, Jul 1, 2015	80.38	81.88	80.10	81.16
1052	NYSE	NPK	Tue, Jun 30, 2015	79.23	80.34	78.90	80.32
1051	NYSE	NPK	Mon, Jun 29, 2015	78.58	79.96	78.58	79.13
1050	NYSE	NPK	Fri, Jun 26, 2015	77.14	79.71	77.14	79.24
1049	NYSE	NPK	Thu, Jun 25, 2015	75.96	77.38	74.69	77.20
1048	NYSE	NPK	Wed, Jun 24, 2015	75.10	75.75	74.35	75.63
1047	NYSE	NPK	Tue, Jun 23, 2015	74.75	75.93	74.35	75.55
1046	NYSE	NPK	Mon, Jun 22, 2015	75.36	75.39	74.51	75.33
1045	NYSE	NPK	Fri, Jun 19, 2015	74.98	75.49	74.71	75.00
1044	NYSE	NPK	Thu, Jun 18, 2015	75.00	75.00	73.76	74.60
1043	NYSE	NPK	Wed, Jun 17, 2015	73.94	75.00	72.91	74.45
1042	NYSE	NPK	Tue, Jun 16, 2015	71.86	73.90	71.61	73.81
1041	NYSE	NPK	Mon, Jun 15, 2015	72.03	72.78	70.36	72.60
1040	NYSE	NPK	Fri, Jun 12, 2015	72.39	72.90	72.39	72.83
1039	NYSE	NPK	Thu, Jun 11, 2015	72.55	72.83	72.16	72.77
1038	NYSE	NPK	Wed, Jun 10, 2015	71.42	73.00	71.42	72.92
1037	NYSE	NPK	Tue, Jun 9, 2015	70.49	71.85	70.49	71.19
1036	NYSE	NPK	Mon, Jun 8, 2015	69.79	71.49	69.39	71.21
1035	NYSE	NPK	Fri, Jun 5, 2015	70.04	70.86	69.19	70.26
1034	NYSE	NPK	Thu, Jun 4, 2015	70.90	71.17	70.09	71.01
1033	NYSE	NPK	Wed, Jun 3, 2015	71.06	71.47	70.91	71.03
1032	NYSE	NPK	Tue, Jun 2, 2015	70.34	71.48	70.28	71.15
1031	NYSE	NPK	Mon, Jun 1, 2015	69.73	71.50	69.06	70.33
1030	NYSE	NPK	Fri, May 29, 2015	69.00	69.79	68.79	69.50
1029	NYSE	NPK	Thu, May 28, 2015	68.59	69.42	68.50	69.33
1028	NYSE	NPK	Wed, May 27, 2015	68.58	69.45	68.54	69.00
1027	NYSE	NPK	Tue, May 26, 2015	69.57	69.70	68.17	68.31
1026	NYSE	NPK	Fri, May 22, 2015	69.57	69.79	68.97	69.51
1025	NYSE	NPK	Thu, May 21, 2015	69.00	69.94	69.00	69.50
1024	NYSE	NPK	Wed, May 20, 2015	68.97	69.47	68.42	69.25
1023	NYSE	NPK	Tue, May 19, 2015	69.22	69.36	68.18	69.01
1022	NYSE	NPK	Mon, May 18, 2015	68.60	69.49	68.16	69.06
1021	NYSE	NPK	Fri, May 15, 2015	66.37	68.96	66.37	68.12
1020	NYSE	NPK	Thu, May 14, 2015	65.40	66.78	65.16	66.13
1019	NYSE	NPK	Wed, May 13, 2015	64.81	65.50	64.81	65.25
1018	NYSE	NPK	Tue, May 12, 2015	64.15	65.15	64.15	64.99
1017	NYSE	NPK	Mon, May 11, 2015	64.57	65.05	64.45	64.80
1016	NYSE	NPK	Fri, May 8, 2015	64.71	64.97	63.98	64.50
1015	NYSE	NPK	Thu, May 7, 2015	62.57	64.78	62.28	64.50
1014	NYSE	NPK	Wed, May 6, 2015	61.99	63.69	61.87	62.81
1013	NYSE	NPK	Tue, May 5, 2015	62.50	62.95	61.65	62.11
1012	NYSE	NPK	Mon, May 4, 2015	63.05	64.05	62.02	62.97
1011	NYSE	NPK	Fri, May 1, 2015	62.51	63.28	62.50	62.55
1010	NYSE	NPK	Thu, Apr 30, 2015	64.84	64.84	62.50	62.58
1009	NYSE	NPK	Wed, Apr 29, 2015	64.76	65.62	64.70	64.84
1008	NYSE	NPK	Tue, Apr 28, 2015	65.40	66.25	64.86	65.76
1007	NYSE	NPK	Mon, Apr 27, 2015	64.91	65.60	64.25	65.38
1006	NYSE	NPK	Fri, Apr 24, 2015	65.41	65.41	64.44	65.10
1005	NYSE	NPK	Thu, Apr 23, 2015	65.31	65.34	64.68	65.06
1004	NYSE	NPK	Wed, Apr 22, 2015	64.75	65.54	64.03	65.24
1003	NYSE	NPK	Tue, Apr 21, 2015	65.60	65.60	64.61	64.85
1002	NYSE	NPK	Mon, Apr 20, 2015	64.50	66.06	64.50	65.51
1001	NYSE	NPK	Fri, Apr 17, 2015	65.65	66.02	64.42	64.62
1000	NYSE	NPK	Thu, Apr 16, 2015	65.24	66.40	64.19	66.08
999	NYSE	NPK	Wed, Apr 15, 2015	63.85	65.50	63.64	65.49
998	NYSE	NPK	Tue, Apr 14, 2015	63.92	63.92	63.18	63.79
997	NYSE	NPK	Mon, Apr 13, 2015	64.34	64.34	63.10	63.81
996	NYSE	NPK	Fri, Apr 10, 2015	63.56	64.69	62.95	63.99
995	NYSE	NPK	Thu, Apr 9, 2015	63.94	63.94	63.00	63.14
994	NYSE	NPK	Wed, Apr 8, 2015	64.07	64.50	63.81	64.00
993	NYSE	NPK	Tue, Apr 7, 2015	64.09	64.83	64.03	64.16
992	NYSE	NPK	Mon, Apr 6, 2015	64.05	64.80	63.55	64.59
991	NYSE	NPK	Thu, Apr 2, 2015	64.56	64.78	63.88	64.00
990	NYSE	NPK	Wed, Apr 1, 2015	63.47	64.75	62.50	64.71
989	NYSE	NPK	Tue, Mar 31, 2015	62.76	63.41	62.76	63.39
988	NYSE	NPK	Mon, Mar 30, 2015	62.95	63.35	62.91	63.13
987	NYSE	NPK	Fri, Mar 27, 2015	61.93	63.04	61.43	63.03
986	NYSE	NPK	Thu, Mar 26, 2015	62.66	63.17	62.15	62.19
985	NYSE	NPK	Wed, Mar 25, 2015	63.50	63.50	61.81	62.34
984	NYSE	NPK	Tue, Mar 24, 2015	62.48	63.58	61.17	63.58
983	NYSE	NPK	Mon, Mar 23, 2015	61.13	63.40	60.15	62.84
982	NYSE	NPK	Fri, Mar 20, 2015	62.27	62.40	59.91	61.12
981	NYSE	NPK	Thu, Mar 19, 2015	60.11	62.33	60.11	62.00
980	NYSE	NPK	Wed, Mar 18, 2015	59.25	60.94	59.24	60.25
979	NYSE	NPK	Tue, Mar 17, 2015	58.07	59.25	58.07	59.25
978	NYSE	NPK	Mon, Mar 16, 2015	59.19	59.25	57.88	58.48
977	NYSE	NPK	Fri, Mar 13, 2015	59.20	59.22	57.59	58.88
976	NYSE	NPK	Thu, Mar 12, 2015	57.68	58.91	57.49	58.59
975	NYSE	NPK	Wed, Mar 11, 2015	56.75	57.47	56.04	57.14
974	NYSE	NPK	Tue, Mar 10, 2015	56.83	57.62	56.58	56.58
973	NYSE	NPK	Mon, Mar 9, 2015	56.95	57.88	56.95	57.70
972	NYSE	NPK	Fri, Mar 6, 2015	57.74	58.03	57.00	57.04
971	NYSE	NPK	Thu, Mar 5, 2015	58.62	58.85	58.05	58.25
970	NYSE	NPK	Wed, Mar 4, 2015	59.25	59.37	58.52	58.85
969	NYSE	NPK	Tue, Mar 3, 2015	59.19	59.77	58.61	59.46
968	NYSE	NPK	Mon, Mar 2, 2015	60.67	60.89	58.36	59.31
967	NYSE	NPK	Fri, Feb 27, 2015	62.25	62.28	60.19	60.64
966	NYSE	NPK	Thu, Feb 26, 2015	63.00	63.00	61.42	62.07
965	NYSE	NPK	Wed, Feb 25, 2015	67.50	67.90	66.07	66.17
964	NYSE	NPK	Tue, Feb 24, 2015	66.94	67.37	66.59	67.22
963	NYSE	NPK	Mon, Feb 23, 2015	65.93	66.88	65.43	66.27
962	NYSE	NPK	Fri, Feb 20, 2015	65.44	65.73	64.93	65.54
961	NYSE	NPK	Thu, Feb 19, 2015	64.39	65.73	64.30	65.23
960	NYSE	NPK	Wed, Feb 18, 2015	64.25	64.48	63.64	64.48
959	NYSE	NPK	Tue, Feb 17, 2015	64.08	64.50	63.68	64.27
958	NYSE	NPK	Fri, Feb 13, 2015	63.66	64.00	63.61	63.63
957	NYSE	NPK	Thu, Feb 12, 2015	63.05	63.52	62.50	63.46
956	NYSE	NPK	Wed, Feb 11, 2015	62.69	62.70	62.33	62.35
955	NYSE	NPK	Tue, Feb 10, 2015	63.51	63.73	62.82	62.89
954	NYSE	NPK	Mon, Feb 9, 2015	64.65	64.65	62.85	63.28
953	NYSE	NPK	Fri, Feb 6, 2015	64.77	65.25	64.02	64.65
952	NYSE	NPK	Thu, Feb 5, 2015	63.97	64.98	63.70	64.77
951	NYSE	NPK	Wed, Feb 4, 2015	64.94	65.00	63.90	64.11
950	NYSE	NPK	Tue, Feb 3, 2015	63.89	64.98	63.46	64.95
949	NYSE	NPK	Mon, Feb 2, 2015	63.49	64.09	62.52	63.82
948	NYSE	NPK	Fri, Jan 30, 2015	63.35	63.42	63.00	63.00
947	NYSE	NPK	Thu, Jan 29, 2015	62.89	64.64	62.89	63.46
946	NYSE	NPK	Wed, Jan 28, 2015	64.44	64.44	63.00	63.07
945	NYSE	NPK	Tue, Jan 27, 2015	62.92	64.00	62.92	63.65
944	NYSE	NPK	Mon, Jan 26, 2015	63.00	63.00	62.11	62.77
943	NYSE	NPK	Fri, Jan 23, 2015	62.92	63.25	62.28	62.77
942	NYSE	NPK	Thu, Jan 22, 2015	61.25	62.95	61.25	62.92
941	NYSE	NPK	Wed, Jan 21, 2015	61.41	61.64	60.13	61.16
940	NYSE	NPK	Tue, Jan 20, 2015	61.95	61.98	61.01	61.24
939	NYSE	NPK	Fri, Jan 16, 2015	60.46	61.93	60.16	61.92
938	NYSE	NPK	Thu, Jan 15, 2015	61.68	61.79	60.00	60.90
937	NYSE	NPK	Wed, Jan 14, 2015	61.69	61.69	61.07	61.18
936	NYSE	NPK	Tue, Jan 13, 2015	60.60	62.00	60.60	61.45
935	NYSE	NPK	Mon, Jan 12, 2015	60.15	60.48	58.95	60.13
934	NYSE	NPK	Fri, Jan 9, 2015	59.25	60.33	58.82	60.06
933	NYSE	NPK	Thu, Jan 8, 2015	58.30	59.11	57.79	59.11
932	NYSE	NPK	Wed, Jan 7, 2015	56.50	57.46	56.29	57.33
931	NYSE	NPK	Tue, Jan 6, 2015	57.30	57.79	56.38	56.44
930	NYSE	NPK	Mon, Jan 5, 2015	58.11	58.11	56.72	56.72
929	NYSE	NPK	Fri, Jan 2, 2015	58.08	58.44	57.05	58.35
928	NYSE	NPK	Wed, Dec 31, 2014	58.39	58.49	58.00	58.04
927	NYSE	NPK	Tue, Dec 30, 2014	58.36	58.99	57.61	58.58
926	NYSE	NPK	Mon, Dec 29, 2014	58.30	58.64	57.00	58.54
925	NYSE	NPK	Fri, Dec 26, 2014	58.62	58.97	58.21	58.65
924	NYSE	NPK	Wed, Dec 24, 2014	59.22	59.55	58.35	58.35
923	NYSE	NPK	Tue, Dec 23, 2014	59.17	60.00	58.87	59.42
922	NYSE	NPK	Mon, Dec 22, 2014	58.12	59.08	58.00	58.95
921	NYSE	NPK	Fri, Dec 19, 2014	58.28	58.51	57.23	58.30
920	NYSE	NPK	Thu, Dec 18, 2014	57.56	58.50	56.83	58.49
919	NYSE	NPK	Wed, Dec 17, 2014	56.75	58.02	55.42	57.53
918	NYSE	NPK	Tue, Dec 16, 2014	55.88	57.86	55.50	56.80
917	NYSE	NPK	Mon, Dec 15, 2014	56.00	56.30	55.75	55.84
916	NYSE	NPK	Fri, Dec 12, 2014	57.00	57.87	56.09	56.85
915	NYSE	NPK	Thu, Dec 11, 2014	56.81	57.62	56.81	57.02
914	NYSE	NPK	Wed, Dec 10, 2014	57.19	58.33	56.99	57.22
913	NYSE	NPK	Tue, Dec 9, 2014	57.20	57.92	56.57	57.74
912	NYSE	NPK	Mon, Dec 8, 2014	58.10	58.50	57.20	57.20
911	NYSE	NPK	Fri, Dec 5, 2014	58.46	59.17	58.38	58.47
910	NYSE	NPK	Thu, Dec 4, 2014	59.00	59.13	58.25	58.58
909	NYSE	NPK	Wed, Dec 3, 2014	58.33	59.38	58.11	59.02
908	NYSE	NPK	Tue, Dec 2, 2014	57.43	58.94	57.43	58.28
907	NYSE	NPK	Mon, Dec 1, 2014	58.52	58.94	57.95	57.95
906	NYSE	NPK	Fri, Nov 28, 2014	59.50	59.55	58.61	58.66
905	NYSE	NPK	Wed, Nov 26, 2014	59.66	60.37	59.62	59.70
904	NYSE	NPK	Tue, Nov 25, 2014	59.75	61.00	59.59	59.85
903	NYSE	NPK	Mon, Nov 24, 2014	59.82	60.11	59.52	59.74
902	NYSE	NPK	Fri, Nov 21, 2014	59.66	60.46	59.54	59.82
901	NYSE	NPK	Thu, Nov 20, 2014	57.95	59.45	57.87	58.63
900	NYSE	NPK	Wed, Nov 19, 2014	58.21	58.22	57.26	57.56
899	NYSE	NPK	Tue, Nov 18, 2014	59.37	59.44	58.21	58.22
898	NYSE	NPK	Mon, Nov 17, 2014	60.00	60.50	59.04	59.37
897	NYSE	NPK	Fri, Nov 14, 2014	60.76	61.38	60.01	60.02
896	NYSE	NPK	Thu, Nov 13, 2014	60.64	61.46	60.43	60.93
895	NYSE	NPK	Wed, Nov 12, 2014	61.20	61.74	60.85	61.21
894	NYSE	NPK	Tue, Nov 11, 2014	60.82	61.99	60.15	60.58
893	NYSE	NPK	Mon, Nov 10, 2014	62.05	62.49	60.83	61.00
892	NYSE	NPK	Fri, Nov 7, 2014	61.64	62.05	61.11	62.05
891	NYSE	NPK	Thu, Nov 6, 2014	61.79	62.03	61.23	62.00
890	NYSE	NPK	Wed, Nov 5, 2014	61.81	62.04	60.68	61.55
889	NYSE	NPK	Tue, Nov 4, 2014	61.50	62.39	60.96	61.50
888	NYSE	NPK	Mon, Nov 3, 2014	63.00	63.46	61.53	61.91
887	NYSE	NPK	Fri, Oct 31, 2014	62.50	63.44	61.61	63.06
886	NYSE	NPK	Thu, Oct 30, 2014	60.74	63.18	60.30	61.54
885	NYSE	NPK	Wed, Oct 29, 2014	61.26	61.44	59.83	61.05
884	NYSE	NPK	Tue, Oct 28, 2014	60.41	62.00	60.16	61.52
883	NYSE	NPK	Mon, Oct 27, 2014	60.83	61.50	60.00	60.27
882	NYSE	NPK	Fri, Oct 24, 2014	62.19	62.93	60.77	61.66
881	NYSE	NPK	Thu, Oct 23, 2014	62.25	62.94	61.50	61.83
880	NYSE	NPK	Wed, Oct 22, 2014	62.70	63.69	61.62	61.90
879	NYSE	NPK	Tue, Oct 21, 2014	61.51	62.63	61.33	62.63
878	NYSE	NPK	Mon, Oct 20, 2014	61.24	61.70	60.50	61.50
877	NYSE	NPK	Fri, Oct 17, 2014	62.77	62.77	61.31	61.72
876	NYSE	NPK	Thu, Oct 16, 2014	59.90	62.45	58.83	62.13
875	NYSE	NPK	Wed, Oct 15, 2014	59.52	60.50	59.47	60.27
874	NYSE	NPK	Tue, Oct 14, 2014	59.32	60.48	58.65	60.34
873	NYSE	NPK	Mon, Oct 13, 2014	59.38	59.92	58.00	58.57
872	NYSE	NPK	Fri, Oct 10, 2014	58.00	59.50	57.90	58.90
871	NYSE	NPK	Thu, Oct 9, 2014	58.59	58.82	57.54	57.96
870	NYSE	NPK	Wed, Oct 8, 2014	57.95	59.22	57.72	58.87
869	NYSE	NPK	Tue, Oct 7, 2014	58.22	58.50	57.62	58.37
868	NYSE	NPK	Mon, Oct 6, 2014	56.91	58.51	56.86	58.17
867	NYSE	NPK	Fri, Oct 3, 2014	57.40	58.71	56.86	57.07
866	NYSE	NPK	Thu, Oct 2, 2014	55.30	57.59	55.21	57.40
865	NYSE	NPK	Wed, Oct 1, 2014	60.50	60.60	54.07	56.69
864	NYSE	NPK	Tue, Sep 30, 2014	61.80	62.19	60.68	60.71
863	NYSE	NPK	Mon, Sep 29, 2014	61.54	62.31	61.24	62.05
862	NYSE	NPK	Fri, Sep 26, 2014	61.73	62.00	61.12	61.97
861	NYSE	NPK	Thu, Sep 25, 2014	62.68	62.68	61.50	61.73
860	NYSE	NPK	Wed, Sep 24, 2014	62.65	63.34	62.17	62.50
859	NYSE	NPK	Tue, Sep 23, 2014	63.26	64.18	62.61	62.75
858	NYSE	NPK	Mon, Sep 22, 2014	63.21	63.75	63.00	63.56
857	NYSE	NPK	Fri, Sep 19, 2014	63.21	63.74	62.75	63.68
856	NYSE	NPK	Thu, Sep 18, 2014	63.52	63.95	63.04	63.12
855	NYSE	NPK	Wed, Sep 17, 2014	63.74	64.33	63.12	63.16
854	NYSE	NPK	Tue, Sep 16, 2014	63.30	64.14	63.26	63.54
853	NYSE	NPK	Mon, Sep 15, 2014	63.47	63.57	63.26	63.41
852	NYSE	NPK	Fri, Sep 12, 2014	64.12	64.20	63.34	63.57
851	NYSE	NPK	Thu, Sep 11, 2014	63.43	64.33	63.33	63.99
850	NYSE	NPK	Wed, Sep 10, 2014	63.63	63.95	63.01	63.60
849	NYSE	NPK	Tue, Sep 9, 2014	64.00	64.39	63.29	63.50
848	NYSE	NPK	Mon, Sep 8, 2014	64.24	64.25	63.78	64.20
847	NYSE	NPK	Fri, Sep 5, 2014	64.01	64.65	63.89	64.40
846	NYSE	NPK	Thu, Sep 4, 2014	65.50	65.85	63.88	64.02
845	NYSE	NPK	Wed, Sep 3, 2014	66.01	66.20	64.55	64.85
844	NYSE	NPK	Tue, Sep 2, 2014	65.45	66.57	65.29	65.94
843	NYSE	NPK	Fri, Aug 29, 2014	65.34	65.80	64.89	65.49
842	NYSE	NPK	Thu, Aug 28, 2014	65.80	65.81	65.10	65.32
841	NYSE	NPK	Wed, Aug 27, 2014	65.80	65.99	65.39	65.67
840	NYSE	NPK	Tue, Aug 26, 2014	65.52	66.00	65.41	65.89
839	NYSE	NPK	Mon, Aug 25, 2014	66.75	67.41	65.38	65.79
838	NYSE	NPK	Fri, Aug 22, 2014	65.99	66.75	65.60	66.41
837	NYSE	NPK	Thu, Aug 21, 2014	64.65	66.55	64.30	66.16
836	NYSE	NPK	Wed, Aug 20, 2014	65.61	65.75	64.26	64.65
835	NYSE	NPK	Tue, Aug 19, 2014	66.99	66.99	65.71	65.75
834	NYSE	NPK	Mon, Aug 18, 2014	66.73	67.20	66.42	66.91
833	NYSE	NPK	Fri, Aug 15, 2014	66.98	66.98	65.53	65.98
832	NYSE	NPK	Thu, Aug 14, 2014	66.11	66.98	66.11	66.45
831	NYSE	NPK	Wed, Aug 13, 2014	65.55	66.14	65.21	66.14
830	NYSE	NPK	Tue, Aug 12, 2014	65.53	66.23	65.14	65.21
829	NYSE	NPK	Mon, Aug 11, 2014	65.11	66.98	65.11	65.50
828	NYSE	NPK	Fri, Aug 8, 2014	64.00	65.57	63.82	65.15
827	NYSE	NPK	Thu, Aug 7, 2014	65.00	65.54	63.44	63.88
826	NYSE	NPK	Wed, Aug 6, 2014	64.35	65.27	64.26	64.96
825	NYSE	NPK	Tue, Aug 5, 2014	63.72	64.65	63.65	64.32
824	NYSE	NPK	Mon, Aug 4, 2014	63.46	64.11	63.12	63.75
823	NYSE	NPK	Fri, Aug 1, 2014	64.13	65.01	62.65	63.61
822	NYSE	NPK	Thu, Jul 31, 2014	63.50	64.66	63.50	64.10
821	NYSE	NPK	Wed, Jul 30, 2014	65.40	66.49	63.30	63.77
820	NYSE	NPK	Tue, Jul 29, 2014	68.88	69.06	65.21	65.30
819	NYSE	NPK	Mon, Jul 28, 2014	69.17	69.85	68.51	68.86
818	NYSE	NPK	Fri, Jul 25, 2014	69.00	69.56	68.56	68.75
817	NYSE	NPK	Thu, Jul 24, 2014	70.09	70.58	69.28	69.80
816	NYSE	NPK	Wed, Jul 23, 2014	70.61	71.20	70.15	70.56
815	NYSE	NPK	Tue, Jul 22, 2014	70.70	70.99	70.29	70.79
814	NYSE	NPK	Mon, Jul 21, 2014	70.07	70.96	69.50	70.54
813	NYSE	NPK	Fri, Jul 18, 2014	68.88	70.21	68.72	70.07
812	NYSE	NPK	Thu, Jul 17, 2014	70.15	70.73	69.04	69.07
811	NYSE	NPK	Wed, Jul 16, 2014	70.03	70.92	69.97	70.75
810	NYSE	NPK	Tue, Jul 15, 2014	70.81	71.27	70.16	70.25
809	NYSE	NPK	Mon, Jul 14, 2014	71.27	71.67	70.74	71.10
808	NYSE	NPK	Fri, Jul 11, 2014	71.53	71.57	70.36	70.62
807	NYSE	NPK	Thu, Jul 10, 2014	71.36	72.46	71.06	71.73
806	NYSE	NPK	Wed, Jul 9, 2014	73.39	73.39	71.80	72.52
805	NYSE	NPK	Tue, Jul 8, 2014	72.62	73.06	71.97	72.99
804	NYSE	NPK	Mon, Jul 7, 2014	74.81	74.94	72.20	72.68
803	NYSE	NPK	Thu, Jul 3, 2014	73.90	75.50	73.42	75.31
802	NYSE	NPK	Wed, Jul 2, 2014	72.98	73.98	72.40	73.38
801	NYSE	NPK	Tue, Jul 1, 2014	72.90	73.96	72.77	73.23
800	NYSE	NPK	Mon, Jun 30, 2014	71.75	72.87	71.24	72.84
799	NYSE	NPK	Fri, Jun 27, 2014	70.69	72.09	70.50	72.08
798	NYSE	NPK	Thu, Jun 26, 2014	71.50	71.79	70.52	71.17
797	NYSE	NPK	Wed, Jun 25, 2014	71.82	72.32	71.27	71.50
796	NYSE	NPK	Tue, Jun 24, 2014	72.02	72.90	71.69	72.29
795	NYSE	NPK	Mon, Jun 23, 2014	72.49	72.49	71.58	71.96
794	NYSE	NPK	Fri, Jun 20, 2014	72.27	72.49	71.77	72.34
793	NYSE	NPK	Thu, Jun 19, 2014	71.74	72.37	70.59	71.83
792	NYSE	NPK	Wed, Jun 18, 2014	70.62	71.48	70.26	71.40
791	NYSE	NPK	Tue, Jun 17, 2014	70.91	71.13	69.88	70.81
790	NYSE	NPK	Mon, Jun 16, 2014	70.69	70.75	69.65	70.47
789	NYSE	NPK	Fri, Jun 13, 2014	70.36	70.98	70.02	70.50
788	NYSE	NPK	Thu, Jun 12, 2014	70.89	71.13	70.22	70.35
787	NYSE	NPK	Wed, Jun 11, 2014	71.10	71.37	70.33	70.74
786	NYSE	NPK	Tue, Jun 10, 2014	71.38	71.49	71.00	71.43
785	NYSE	NPK	Mon, Jun 9, 2014	71.00	71.48	71.00	71.39
784	NYSE	NPK	Fri, Jun 6, 2014	71.48	71.49	70.52	70.69
783	NYSE	NPK	Thu, Jun 5, 2014	69.03	71.48	68.85	71.28
782	NYSE	NPK	Wed, Jun 4, 2014	69.11	69.24	68.61	68.91
781	NYSE	NPK	Tue, Jun 3, 2014	69.50	70.08	68.83	69.00
780	NYSE	NPK	Mon, Jun 2, 2014	70.17	70.47	69.30	69.67
779	NYSE	NPK	Fri, May 30, 2014	69.54	70.48	69.54	70.39
778	NYSE	NPK	Thu, May 29, 2014	70.13	70.66	69.30	69.95
777	NYSE	NPK	Wed, May 28, 2014	70.40	71.11	69.42	70.01
776	NYSE	NPK	Tue, May 27, 2014	69.84	70.75	69.17	70.37
775	NYSE	NPK	Fri, May 23, 2014	68.14	69.48	68.12	69.17
774	NYSE	NPK	Thu, May 22, 2014	68.01	68.90	67.47	68.37
773	NYSE	NPK	Wed, May 21, 2014	68.20	68.87	67.09	67.63
772	NYSE	NPK	Tue, May 20, 2014	68.50	68.76	67.09	67.61
771	NYSE	NPK	Mon, May 19, 2014	69.29	69.78	68.50	68.51
770	NYSE	NPK	Fri, May 16, 2014	69.00	69.40	68.70	69.35
769	NYSE	NPK	Thu, May 15, 2014	68.26	69.29	68.00	68.89
768	NYSE	NPK	Wed, May 14, 2014	70.35	70.51	68.28	68.67
767	NYSE	NPK	Tue, May 13, 2014	70.90	71.20	70.05	70.16
766	NYSE	NPK	Mon, May 12, 2014	68.10	71.32	68.10	70.76
765	NYSE	NPK	Fri, May 9, 2014	67.49	68.82	67.27	68.15
764	NYSE	NPK	Thu, May 8, 2014	69.00	69.14	67.54	67.74
763	NYSE	NPK	Wed, May 7, 2014	70.39	71.38	68.70	69.10
762	NYSE	NPK	Tue, May 6, 2014	71.47	71.79	70.15	70.45
761	NYSE	NPK	Mon, May 5, 2014	72.25	72.41	71.02	71.50
760	NYSE	NPK	Fri, May 2, 2014	71.40	72.90	71.40	72.33
759	NYSE	NPK	Thu, May 1, 2014	72.38	72.71	70.88	71.26
758	NYSE	NPK	Wed, Apr 30, 2014	71.01	72.88	70.85	72.26
757	NYSE	NPK	Tue, Apr 29, 2014	71.88	72.99	71.18	71.25
756	NYSE	NPK	Mon, Apr 28, 2014	74.98	74.98	71.00	71.76
755	NYSE	NPK	Fri, Apr 25, 2014	74.40	75.00	74.05	74.23
754	NYSE	NPK	Thu, Apr 24, 2014	76.42	76.72	74.35	74.48
753	NYSE	NPK	Wed, Apr 23, 2014	76.35	76.53	75.78	75.78
752	NYSE	NPK	Tue, Apr 22, 2014	76.37	76.94	75.91	76.17
751	NYSE	NPK	Mon, Apr 21, 2014	76.05	76.46	75.76	75.91
750	NYSE	NPK	Thu, Apr 17, 2014	75.47	76.25	75.28	75.52
749	NYSE	NPK	Wed, Apr 16, 2014	75.98	76.06	74.65	75.47
748	NYSE	NPK	Tue, Apr 15, 2014	75.77	76.01	74.70	75.67
747	NYSE	NPK	Mon, Apr 14, 2014	76.72	76.72	74.90	75.29
746	NYSE	NPK	Fri, Apr 11, 2014	74.51	77.19	74.50	75.83
745	NYSE	NPK	Thu, Apr 10, 2014	75.25	75.57	74.50	74.66
744	NYSE	NPK	Wed, Apr 9, 2014	75.50	75.80	74.86	75.12
743	NYSE	NPK	Tue, Apr 8, 2014	75.43	75.79	74.52	74.91
742	NYSE	NPK	Mon, Apr 7, 2014	76.43	76.75	74.85	75.15
741	NYSE	NPK	Fri, Apr 4, 2014	77.33	77.75	75.39	76.00
740	NYSE	NPK	Thu, Apr 3, 2014	75.64	76.05	73.99	74.33
739	NYSE	NPK	Wed, Apr 2, 2014	75.75	76.70	75.06	75.44
738	NYSE	NPK	Tue, Apr 1, 2014	77.75	77.75	75.41	75.87
737	NYSE	NPK	Mon, Mar 31, 2014	77.28	78.85	76.50	78.04
736	NYSE	NPK	Fri, Mar 28, 2014	76.21	76.87	75.49	76.79
735	NYSE	NPK	Thu, Mar 27, 2014	77.25	77.48	75.67	75.84
734	NYSE	NPK	Wed, Mar 26, 2014	79.01	79.48	77.02	77.16
733	NYSE	NPK	Tue, Mar 25, 2014	80.82	81.13	78.88	79.00
732	NYSE	NPK	Mon, Mar 24, 2014	81.23	81.82	80.95	81.13
731	NYSE	NPK	Fri, Mar 21, 2014	80.96	81.47	80.04	81.47
730	NYSE	NPK	Thu, Mar 20, 2014	79.33	80.71	79.33	80.48
729	NYSE	NPK	Wed, Mar 19, 2014	81.10	81.10	79.21	79.31
728	NYSE	NPK	Tue, Mar 18, 2014	80.46	81.61	80.46	81.16
727	NYSE	NPK	Mon, Mar 17, 2014	79.62	80.99	79.42	80.44
726	NYSE	NPK	Fri, Mar 14, 2014	78.27	79.43	77.79	79.18
725	NYSE	NPK	Thu, Mar 13, 2014	78.77	78.82	77.32	77.84
724	NYSE	NPK	Wed, Mar 12, 2014	78.21	79.21	78.21	78.77
723	NYSE	NPK	Tue, Mar 11, 2014	79.89	80.44	78.44	78.67
722	NYSE	NPK	Mon, Mar 10, 2014	80.00	80.00	79.15	79.89
721	NYSE	NPK	Fri, Mar 7, 2014	79.55	80.25	79.37	80.00
720	NYSE	NPK	Thu, Mar 6, 2014	79.06	79.89	78.74	79.53
719	NYSE	NPK	Wed, Mar 5, 2014	79.41	79.45	77.57	79.08
718	NYSE	NPK	Tue, Mar 4, 2014	77.75	80.24	77.55	79.00
717	NYSE	NPK	Mon, Mar 3, 2014	78.70	78.70	75.77	77.43
716	NYSE	NPK	Fri, Feb 28, 2014	77.14	77.51	76.66	77.04
715	NYSE	NPK	Thu, Feb 27, 2014	78.41	78.41	76.38	77.40
714	NYSE	NPK	Wed, Feb 26, 2014	82.50	84.00	82.50	83.25
713	NYSE	NPK	Tue, Feb 25, 2014	81.00	82.20	80.71	81.80
712	NYSE	NPK	Mon, Feb 24, 2014	79.33	80.81	79.33	80.70
711	NYSE	NPK	Fri, Feb 21, 2014	80.00	80.00	78.70	79.11
710	NYSE	NPK	Thu, Feb 20, 2014	77.48	79.99	77.48	79.94
709	NYSE	NPK	Wed, Feb 19, 2014	77.27	78.50	77.07	77.17
708	NYSE	NPK	Tue, Feb 18, 2014	77.98	78.55	77.05	77.45
707	NYSE	NPK	Fri, Feb 14, 2014	77.19	77.42	76.45	77.32
706	NYSE	NPK	Thu, Feb 13, 2014	74.97	77.17	74.97	77.14
705	NYSE	NPK	Wed, Feb 12, 2014	75.18	76.22	75.11	75.62
704	NYSE	NPK	Tue, Feb 11, 2014	74.05	75.70	74.05	75.36
703	NYSE	NPK	Mon, Feb 10, 2014	74.38	74.38	73.31	74.25
702	NYSE	NPK	Fri, Feb 7, 2014	73.99	74.76	73.99	74.47
701	NYSE	NPK	Thu, Feb 6, 2014	73.58	74.55	73.55	73.98
700	NYSE	NPK	Wed, Feb 5, 2014	74.20	74.50	73.04	73.68
699	NYSE	NPK	Tue, Feb 4, 2014	74.51	74.55	73.52	74.19
698	NYSE	NPK	Mon, Feb 3, 2014	75.79	76.32	73.94	74.54
697	NYSE	NPK	Fri, Jan 31, 2014	75.41	76.76	75.41	76.09
696	NYSE	NPK	Thu, Jan 30, 2014	75.37	77.22	75.37	76.48
695	NYSE	NPK	Wed, Jan 29, 2014	76.15	76.52	75.00	75.09
694	NYSE	NPK	Tue, Jan 28, 2014	77.65	78.34	76.35	76.67
693	NYSE	NPK	Mon, Jan 27, 2014	78.25	78.73	77.65	77.65
692	NYSE	NPK	Fri, Jan 24, 2014	78.08	78.74	78.01	78.51
691	NYSE	NPK	Thu, Jan 23, 2014	78.68	78.72	77.41	78.70
690	NYSE	NPK	Wed, Jan 22, 2014	77.56	78.69	77.56	78.61
689	NYSE	NPK	Tue, Jan 21, 2014	78.52	78.85	77.47	77.84
688	NYSE	NPK	Fri, Jan 17, 2014	78.62	78.88	77.86	77.95
687	NYSE	NPK	Thu, Jan 16, 2014	78.42	79.00	78.37	78.91
686	NYSE	NPK	Wed, Jan 15, 2014	77.86	78.97	77.86	78.68
685	NYSE	NPK	Tue, Jan 14, 2014	77.41	78.07	77.10	77.79
684	NYSE	NPK	Mon, Jan 13, 2014	79.44	79.87	76.63	77.39
683	NYSE	NPK	Fri, Jan 10, 2014	79.11	79.75	78.91	79.36
682	NYSE	NPK	Thu, Jan 9, 2014	79.23	79.62	78.75	79.34
681	NYSE	NPK	Wed, Jan 8, 2014	78.62	79.16	78.50	79.16
680	NYSE	NPK	Tue, Jan 7, 2014	79.09	79.12	77.97	78.85
679	NYSE	NPK	Mon, Jan 6, 2014	79.63	79.63	78.26	78.65
678	NYSE	NPK	Fri, Jan 3, 2014	79.57	80.23	79.20	79.76
677	NYSE	NPK	Thu, Jan 2, 2014	80.50	80.50	79.14	79.61
676	NYSE	NPK	Tue, Dec 31, 2013	80.98	80.98	80.30	80.50
675	NYSE	NPK	Mon, Dec 30, 2013	81.00	81.00	80.50	80.77
674	NYSE	NPK	Fri, Dec 27, 2013	81.00	81.00	80.48	80.93
673	NYSE	NPK	Thu, Dec 26, 2013	80.67	80.88	80.19	80.86
672	NYSE	NPK	Tue, Dec 24, 2013	80.41	80.54	79.93	80.51
671	NYSE	NPK	Mon, Dec 23, 2013	79.95	80.40	79.21	80.40
670	NYSE	NPK	Fri, Dec 20, 2013	78.74	80.05	78.56	80.05
669	NYSE	NPK	Thu, Dec 19, 2013	79.29	79.86	77.79	78.68
668	NYSE	NPK	Wed, Dec 18, 2013	78.44	79.90	78.35	79.90
667	NYSE	NPK	Tue, Dec 17, 2013	78.00	78.39	77.60	78.26
666	NYSE	NPK	Mon, Dec 16, 2013	77.00	77.98	76.90	77.98
665	NYSE	NPK	Fri, Dec 13, 2013	76.87	77.09	76.62	76.92
664	NYSE	NPK	Thu, Dec 12, 2013	75.35	76.95	75.23	76.95
663	NYSE	NPK	Wed, Dec 11, 2013	76.33	76.45	74.86	75.06
662	NYSE	NPK	Tue, Dec 10, 2013	76.54	76.55	75.47	76.16
661	NYSE	NPK	Mon, Dec 9, 2013	76.79	77.00	76.58	76.82
660	NYSE	NPK	Fri, Dec 6, 2013	76.50	77.19	76.39	76.80
659	NYSE	NPK	Thu, Dec 5, 2013	76.40	76.84	75.67	76.48
658	NYSE	NPK	Wed, Dec 4, 2013	76.75	76.99	75.67	76.06
657	NYSE	NPK	Tue, Dec 3, 2013	76.90	76.99	76.31	76.90
656	NYSE	NPK	Mon, Dec 2, 2013	76.89	77.07	76.44	76.85
655	NYSE	NPK	Fri, Nov 29, 2013	76.50	77.15	76.00	76.61
654	NYSE	NPK	Wed, Nov 27, 2013	75.62	76.54	75.60	76.54
653	NYSE	NPK	Tue, Nov 26, 2013	75.05	75.72	75.00	75.62
652	NYSE	NPK	Mon, Nov 25, 2013	74.14	75.80	74.14	75.25
651	NYSE	NPK	Fri, Nov 22, 2013	73.01	74.56	73.01	74.38
650	NYSE	NPK	Thu, Nov 21, 2013	72.23	73.06	71.96	72.99
649	NYSE	NPK	Wed, Nov 20, 2013	72.50	72.50	71.26	72.18
648	NYSE	NPK	Tue, Nov 19, 2013	71.27	72.28	70.33	72.27
647	NYSE	NPK	Mon, Nov 18, 2013	70.97	71.87	70.62	71.57
646	NYSE	NPK	Fri, Nov 15, 2013	71.05	71.50	70.28	71.14
645	NYSE	NPK	Thu, Nov 14, 2013	70.54	71.48	70.37	71.23
644	NYSE	NPK	Wed, Nov 13, 2013	70.24	70.90	69.63	70.88
643	NYSE	NPK	Tue, Nov 12, 2013	69.80	70.68	69.60	70.57
642	NYSE	NPK	Mon, Nov 11, 2013	69.70	70.40	69.20	69.98
641	NYSE	NPK	Fri, Nov 8, 2013	69.97	70.40	69.34	69.98
640	NYSE	NPK	Thu, Nov 7, 2013	70.76	70.81	70.00	70.20
639	NYSE	NPK	Wed, Nov 6, 2013	70.75	70.75	69.90	70.47
638	NYSE	NPK	Tue, Nov 5, 2013	70.41	70.87	70.15	70.57
637	NYSE	NPK	Mon, Nov 4, 2013	70.92	70.92	70.36	70.80
636	NYSE	NPK	Fri, Nov 1, 2013	70.60	71.19	70.00	70.92
635	NYSE	NPK	Thu, Oct 31, 2013	70.73	70.84	70.00	70.55
634	NYSE	NPK	Wed, Oct 30, 2013	71.20	71.20	70.37	70.52
633	NYSE	NPK	Tue, Oct 29, 2013	71.83	72.23	71.00	71.15
632	NYSE	NPK	Mon, Oct 28, 2013	70.76	71.88	70.75	71.87
631	NYSE	NPK	Fri, Oct 25, 2013	72.34	72.34	70.78	70.85
630	NYSE	NPK	Thu, Oct 24, 2013	71.76	72.20	71.38	72.05
629	NYSE	NPK	Wed, Oct 23, 2013	70.43	72.00	70.43	71.76
628	NYSE	NPK	Tue, Oct 22, 2013	71.10	71.48	70.39	70.43
627	NYSE	NPK	Mon, Oct 21, 2013	72.06	72.34	70.41	71.09
626	NYSE	NPK	Fri, Oct 18, 2013	72.50	72.50	71.28	71.75
625	NYSE	NPK	Thu, Oct 17, 2013	71.53	72.45	71.27	71.90
624	NYSE	NPK	Wed, Oct 16, 2013	71.58	72.13	70.99	71.58
623	NYSE	NPK	Tue, Oct 15, 2013	71.82	72.36	70.26	71.38
622	NYSE	NPK	Mon, Oct 14, 2013	71.17	71.96	71.08	71.69
621	NYSE	NPK	Fri, Oct 11, 2013	70.46	71.78	70.46	71.29
620	NYSE	NPK	Thu, Oct 10, 2013	69.66	70.60	68.76	70.48
619	NYSE	NPK	Wed, Oct 9, 2013	68.08	69.85	67.52	68.65
618	NYSE	NPK	Tue, Oct 8, 2013	67.46	68.07	67.32	67.59
617	NYSE	NPK	Mon, Oct 7, 2013	68.11	68.24	67.39	67.69
616	NYSE	NPK	Fri, Oct 4, 2013	68.23	69.26	68.20	68.32
615	NYSE	NPK	Thu, Oct 3, 2013	69.54	69.54	68.07	68.40
614	NYSE	NPK	Wed, Oct 2, 2013	69.87	70.28	69.01	69.59
613	NYSE	NPK	Tue, Oct 1, 2013	70.62	70.62	70.00	70.30
612	NYSE	NPK	Mon, Sep 30, 2013	69.74	70.81	69.65	70.41
611	NYSE	NPK	Fri, Sep 27, 2013	71.15	71.57	69.80	70.24
610	NYSE	NPK	Thu, Sep 26, 2013	71.31	71.68	70.66	71.57
609	NYSE	NPK	Wed, Sep 25, 2013	71.90	72.00	71.25	71.28
608	NYSE	NPK	Tue, Sep 24, 2013	72.28	72.39	71.90	71.96
607	NYSE	NPK	Mon, Sep 23, 2013	72.06	72.65	71.30	72.41
606	NYSE	NPK	Fri, Sep 20, 2013	72.19	72.51	71.56	72.44
605	NYSE	NPK	Thu, Sep 19, 2013	72.17	72.17	70.82	71.80
604	NYSE	NPK	Wed, Sep 18, 2013	72.54	72.99	71.36	72.42
603	NYSE	NPK	Tue, Sep 17, 2013	72.50	73.06	72.27	72.46
602	NYSE	NPK	Mon, Sep 16, 2013	71.68	72.20	71.00	72.04
601	NYSE	NPK	Fri, Sep 13, 2013	70.62	71.25	70.01	71.18
600	NYSE	NPK	Thu, Sep 12, 2013	71.38	71.61	70.38	70.64
599	NYSE	NPK	Wed, Sep 11, 2013	70.34	71.42	70.18	70.76
598	NYSE	NPK	Tue, Sep 10, 2013	70.40	71.27	70.14	70.69
597	NYSE	NPK	Mon, Sep 9, 2013	69.26	70.66	69.00	70.46
596	NYSE	NPK	Fri, Sep 6, 2013	69.42	69.52	68.50	69.23
595	NYSE	NPK	Thu, Sep 5, 2013	69.23	69.35	68.76	69.12
594	NYSE	NPK	Wed, Sep 4, 2013	69.70	69.70	69.05	69.34
593	NYSE	NPK	Tue, Sep 3, 2013	69.58	70.73	69.01	69.36
592	NYSE	NPK	Fri, Aug 30, 2013	70.68	70.73	68.72	68.98
591	NYSE	NPK	Thu, Aug 29, 2013	70.84	71.70	70.52	70.68
590	NYSE	NPK	Wed, Aug 28, 2013	70.78	72.43	70.57	70.69
589	NYSE	NPK	Tue, Aug 27, 2013	71.97	73.35	70.79	70.86
588	NYSE	NPK	Mon, Aug 26, 2013	73.61	73.98	72.34	72.88
587	NYSE	NPK	Fri, Aug 23, 2013	73.20	73.81	73.02	73.42
586	NYSE	NPK	Thu, Aug 22, 2013	70.22	73.72	70.22	72.83
585	NYSE	NPK	Wed, Aug 21, 2013	70.00	70.71	70.00	70.25
584	NYSE	NPK	Tue, Aug 20, 2013	70.30	70.80	70.01	70.02
583	NYSE	NPK	Mon, Aug 19, 2013	70.54	71.74	70.00	70.01
582	NYSE	NPK	Fri, Aug 16, 2013	70.23	71.39	70.05	70.83
581	NYSE	NPK	Thu, Aug 15, 2013	71.77	72.41	70.32	70.43
580	NYSE	NPK	Wed, Aug 14, 2013	72.28	72.70	71.78	72.24
579	NYSE	NPK	Tue, Aug 13, 2013	72.21	72.94	72.13	72.61
578	NYSE	NPK	Mon, Aug 12, 2013	73.07	73.13	71.71	72.36
577	NYSE	NPK	Fri, Aug 9, 2013	73.93	74.00	73.06	73.38
576	NYSE	NPK	Thu, Aug 8, 2013	74.23	74.87	73.61	74.21
575	NYSE	NPK	Wed, Aug 7, 2013	74.97	75.41	73.75	74.07
574	NYSE	NPK	Tue, Aug 6, 2013	74.15	75.34	74.10	74.87
573	NYSE	NPK	Mon, Aug 5, 2013	73.86	74.67	73.62	74.66
572	NYSE	NPK	Fri, Aug 2, 2013	74.19	74.37	73.62	73.85
571	NYSE	NPK	Thu, Aug 1, 2013	74.50	74.90	73.89	74.26
570	NYSE	NPK	Wed, Jul 31, 2013	74.44	74.90	73.61	74.14
569	NYSE	NPK	Tue, Jul 30, 2013	75.00	75.00	74.17	74.43
568	NYSE	NPK	Mon, Jul 29, 2013	74.65	75.54	74.00	74.55
567	NYSE	NPK	Fri, Jul 26, 2013	75.50	75.50	74.65	74.81
566	NYSE	NPK	Thu, Jul 25, 2013	75.89	76.25	75.26	75.73
565	NYSE	NPK	Wed, Jul 24, 2013	77.45	77.45	75.89	76.20
564	NYSE	NPK	Tue, Jul 23, 2013	77.25	77.50	76.44	77.02
563	NYSE	NPK	Mon, Jul 22, 2013	77.17	77.50	76.76	77.30
562	NYSE	NPK	Fri, Jul 19, 2013	76.83	76.99	76.30	76.99
561	NYSE	NPK	Thu, Jul 18, 2013	76.74	76.99	75.88	76.98
560	NYSE	NPK	Wed, Jul 17, 2013	76.43	76.87	75.92	76.42
559	NYSE	NPK	Tue, Jul 16, 2013	77.00	77.00	76.07	76.71
558	NYSE	NPK	Mon, Jul 15, 2013	76.50	77.01	75.75	77.01
557	NYSE	NPK	Fri, Jul 12, 2013	76.31	76.39	75.56	76.34
556	NYSE	NPK	Thu, Jul 11, 2013	76.25	76.37	75.43	76.19
555	NYSE	NPK	Wed, Jul 10, 2013	74.80	75.92	73.95	75.79
554	NYSE	NPK	Tue, Jul 9, 2013	73.15	74.85	72.66	74.81
553	NYSE	NPK	Mon, Jul 8, 2013	72.91	73.30	71.90	73.05
552	NYSE	NPK	Fri, Jul 5, 2013	72.45	72.46	71.70	72.25
551	NYSE	NPK	Wed, Jul 3, 2013	70.42	71.68	70.42	71.45
550	NYSE	NPK	Tue, Jul 2, 2013	71.76	72.00	70.00	71.06
549	NYSE	NPK	Mon, Jul 1, 2013	71.90	72.17	71.62	72.00
548	NYSE	NPK	Fri, Jun 28, 2013	71.82	72.29	71.62	72.03
547	NYSE	NPK	Thu, Jun 27, 2013	71.05	72.27	70.49	72.24
546	NYSE	NPK	Wed, Jun 26, 2013	72.27	72.28	70.50	70.59
545	NYSE	NPK	Tue, Jun 25, 2013	72.50	72.71	71.06	71.95
544	NYSE	NPK	Mon, Jun 24, 2013	71.02	72.00	70.49	71.04
543	NYSE	NPK	Fri, Jun 21, 2013	70.78	72.44	70.50	71.72
542	NYSE	NPK	Thu, Jun 20, 2013	72.52	72.53	70.25	70.64
541	NYSE	NPK	Wed, Jun 19, 2013	74.60	74.60	72.86	73.01
540	NYSE	NPK	Tue, Jun 18, 2013	74.12	74.92	73.81	74.80
539	NYSE	NPK	Mon, Jun 17, 2013	75.19	75.21	73.60	73.93
538	NYSE	NPK	Fri, Jun 14, 2013	75.20	75.46	74.60	74.78
537	NYSE	NPK	Thu, Jun 13, 2013	74.77	75.83	74.50	75.46
536	NYSE	NPK	Wed, Jun 12, 2013	76.97	76.97	74.64	74.64
535	NYSE	NPK	Tue, Jun 11, 2013	75.54	76.34	75.11	75.58
534	NYSE	NPK	Mon, Jun 10, 2013	75.81	75.96	74.38	75.89
533	NYSE	NPK	Fri, Jun 7, 2013	74.74	75.69	74.07	75.50
532	NYSE	NPK	Thu, Jun 6, 2013	74.65	75.63	74.21	74.78
531	NYSE	NPK	Wed, Jun 5, 2013	76.12	76.53	74.28	74.36
530	NYSE	NPK	Tue, Jun 4, 2013	77.28	77.50	74.30	75.99
529	NYSE	NPK	Mon, Jun 3, 2013	75.76	77.73	75.76	77.27
528	NYSE	NPK	Fri, May 31, 2013	77.14	77.84	76.44	76.93
527	NYSE	NPK	Thu, May 30, 2013	77.89	78.30	77.37	77.71
526	NYSE	NPK	Wed, May 29, 2013	77.52	77.80	77.37	77.43
525	NYSE	NPK	Tue, May 28, 2013	77.54	77.95	77.15	77.82
524	NYSE	NPK	Fri, May 24, 2013	77.49	77.70	76.25	77.70
523	NYSE	NPK	Thu, May 23, 2013	76.27	77.72	75.72	77.58
522	NYSE	NPK	Wed, May 22, 2013	76.88	77.97	76.07	76.51
521	NYSE	NPK	Tue, May 21, 2013	77.65	78.00	76.20	76.90
520	NYSE	NPK	Mon, May 20, 2013	76.74	77.75	75.87	77.71
519	NYSE	NPK	Fri, May 17, 2013	76.40	76.97	75.82	76.88
518	NYSE	NPK	Thu, May 16, 2013	76.31	76.83	75.52	76.30
517	NYSE	NPK	Wed, May 15, 2013	75.61	77.00	75.61	76.88
516	NYSE	NPK	Tue, May 14, 2013	77.37	77.37	75.50	76.26
515	NYSE	NPK	Mon, May 13, 2013	78.00	78.00	77.37	77.50
514	NYSE	NPK	Fri, May 10, 2013	77.12	78.04	75.91	78.04
513	NYSE	NPK	Thu, May 9, 2013	77.01	78.44	76.49	76.90
512	NYSE	NPK	Wed, May 8, 2013	76.33	77.01	75.94	77.01
511	NYSE	NPK	Tue, May 7, 2013	76.12	76.47	75.50	76.30
510	NYSE	NPK	Mon, May 6, 2013	75.98	76.98	75.21	76.05
509	NYSE	NPK	Fri, May 3, 2013	75.67	76.96	75.46	76.19
508	NYSE	NPK	Thu, May 2, 2013	73.62	75.38	73.23	74.98
507	NYSE	NPK	Wed, May 1, 2013	74.97	75.02	73.00	73.28
506	NYSE	NPK	Tue, Apr 30, 2013	74.89	75.27	74.70	75.00
505	NYSE	NPK	Mon, Apr 29, 2013	74.76	75.45	74.60	74.96
504	NYSE	NPK	Fri, Apr 26, 2013	75.23	75.67	74.48	74.80
503	NYSE	NPK	Thu, Apr 25, 2013	75.19	75.75	75.15	75.70
502	NYSE	NPK	Wed, Apr 24, 2013	76.27	76.85	74.80	75.33
501	NYSE	NPK	Tue, Apr 23, 2013	76.46	76.93	75.50	76.52
500	NYSE	NPK	Mon, Apr 22, 2013	76.55	76.95	74.67	76.07
499	NYSE	NPK	Fri, Apr 19, 2013	75.00	77.00	74.91	76.72
498	NYSE	NPK	Thu, Apr 18, 2013	76.00	76.63	74.44	74.80
497	NYSE	NPK	Wed, Apr 17, 2013	77.68	78.70	75.67	75.99
496	NYSE	NPK	Tue, Apr 16, 2013	77.51	78.59	77.51	78.28
495	NYSE	NPK	Mon, Apr 15, 2013	78.55	79.22	77.07	77.22
494	NYSE	NPK	Fri, Apr 12, 2013	79.78	79.78	78.33	79.23
493	NYSE	NPK	Thu, Apr 11, 2013	79.04	79.94	78.79	79.82
492	NYSE	NPK	Wed, Apr 10, 2013	78.18	79.46	77.94	79.18
491	NYSE	NPK	Tue, Apr 9, 2013	78.66	78.88	77.85	78.20
490	NYSE	NPK	Mon, Apr 8, 2013	78.00	78.77	77.49	78.27
489	NYSE	NPK	Fri, Apr 5, 2013	77.07	78.29	77.06	77.70
488	NYSE	NPK	Thu, Apr 4, 2013	79.01	79.18	77.81	78.13
487	NYSE	NPK	Wed, Apr 3, 2013	80.00	80.00	78.13	78.13
486	NYSE	NPK	Tue, Apr 2, 2013	79.79	80.39	79.35	79.85
485	NYSE	NPK	Mon, Apr 1, 2013	80.12	80.50	79.27	79.65
484	NYSE	NPK	Thu, Mar 28, 2013	80.50	80.68	79.66	80.50
483	NYSE	NPK	Wed, Mar 27, 2013	79.10	80.49	79.06	80.32
482	NYSE	NPK	Tue, Mar 26, 2013	78.89	79.81	78.25	79.78
481	NYSE	NPK	Mon, Mar 25, 2013	79.26	79.79	78.32	78.70
480	NYSE	NPK	Fri, Mar 22, 2013	80.00	80.46	79.02	79.95
479	NYSE	NPK	Thu, Mar 21, 2013	79.19	80.00	78.76	79.92
478	NYSE	NPK	Wed, Mar 20, 2013	78.50	79.59	78.17	79.59
477	NYSE	NPK	Tue, Mar 19, 2013	78.30	78.70	77.92	78.50
476	NYSE	NPK	Mon, Mar 18, 2013	77.90	79.50	77.90	78.74
475	NYSE	NPK	Fri, Mar 15, 2013	76.90	78.80	76.61	78.80
474	NYSE	NPK	Thu, Mar 14, 2013	76.92	76.92	76.61	76.67
473	NYSE	NPK	Wed, Mar 13, 2013	76.05	77.00	76.05	76.92
472	NYSE	NPK	Tue, Mar 12, 2013	76.36	76.79	75.92	76.23
471	NYSE	NPK	Mon, Mar 11, 2013	76.85	77.02	76.11	76.71
470	NYSE	NPK	Fri, Mar 8, 2013	77.12	77.98	75.78	77.12
469	NYSE	NPK	Thu, Mar 7, 2013	76.34	77.00	75.97	76.83
468	NYSE	NPK	Wed, Mar 6, 2013	75.63	76.93	75.49	76.46
467	NYSE	NPK	Tue, Mar 5, 2013	75.21	76.64	75.21	75.78
466	NYSE	NPK	Mon, Mar 4, 2013	74.98	76.01	74.60	75.15
465	NYSE	NPK	Fri, Mar 1, 2013	74.91	76.16	74.48	75.74
464	NYSE	NPK	Thu, Feb 28, 2013	75.03	76.55	75.03	75.99
463	NYSE	NPK	Wed, Feb 27, 2013	75.49	76.50	74.96	75.36
462	NYSE	NPK	Tue, Feb 26, 2013	75.50	76.08	73.50	75.69
461	NYSE	NPK	Mon, Feb 25, 2013	77.08	77.54	75.32	75.39
460	NYSE	NPK	Fri, Feb 22, 2013	74.56	75.71	74.44	75.57
459	NYSE	NPK	Thu, Feb 21, 2013	74.74	75.33	73.76	74.49
458	NYSE	NPK	Wed, Feb 20, 2013	74.53	75.78	74.40	74.88
457	NYSE	NPK	Tue, Feb 19, 2013	72.82	74.68	72.82	74.53
456	NYSE	NPK	Fri, Feb 15, 2013	74.32	74.60	73.00	73.01
455	NYSE	NPK	Thu, Feb 14, 2013	74.40	74.97	73.80	74.44
454	NYSE	NPK	Wed, Feb 13, 2013	74.85	75.09	74.00	74.84
453	NYSE	NPK	Tue, Feb 12, 2013	74.29	75.65	73.85	75.00
452	NYSE	NPK	Mon, Feb 11, 2013	73.79	74.70	73.20	74.40
451	NYSE	NPK	Fri, Feb 8, 2013	73.69	74.74	73.69	74.25
450	NYSE	NPK	Thu, Feb 7, 2013	73.60	74.43	73.16	74.17
449	NYSE	NPK	Wed, Feb 6, 2013	73.11	74.50	73.02	74.30
448	NYSE	NPK	Tue, Feb 5, 2013	73.65	73.77	73.12	73.39
447	NYSE	NPK	Mon, Feb 4, 2013	73.29	74.56	73.26	73.42
446	NYSE	NPK	Fri, Feb 1, 2013	73.85	74.70	73.52	74.08
445	NYSE	NPK	Thu, Jan 31, 2013	73.48	74.00	73.11	73.35
444	NYSE	NPK	Wed, Jan 30, 2013	74.43	74.43	73.39	73.58
443	NYSE	NPK	Tue, Jan 29, 2013	73.16	74.21	73.01	74.19
442	NYSE	NPK	Mon, Jan 28, 2013	72.93	73.65	72.20	72.99
441	NYSE	NPK	Fri, Jan 25, 2013	73.48	73.49	72.72	73.37
440	NYSE	NPK	Thu, Jan 24, 2013	73.00	73.68	72.75	73.42
439	NYSE	NPK	Wed, Jan 23, 2013	72.44	73.28	71.91	72.82
438	NYSE	NPK	Tue, Jan 22, 2013	72.05	72.47	71.37	72.25
437	NYSE	NPK	Fri, Jan 18, 2013	72.19	72.67	71.01	72.40
436	NYSE	NPK	Thu, Jan 17, 2013	71.08	72.59	70.82	72.01
435	NYSE	NPK	Wed, Jan 16, 2013	70.31	72.11	70.06	70.79
434	NYSE	NPK	Tue, Jan 15, 2013	70.05	71.18	69.91	71.18
433	NYSE	NPK	Mon, Jan 14, 2013	69.85	70.28	69.82	70.19
432	NYSE	NPK	Fri, Jan 11, 2013	69.61	70.00	69.00	69.89
431	NYSE	NPK	Thu, Jan 10, 2013	70.00	70.00	69.00	69.33
430	NYSE	NPK	Wed, Jan 9, 2013	69.76	70.46	69.33	69.74
429	NYSE	NPK	Tue, Jan 8, 2013	69.60	70.42	69.11	69.97
428	NYSE	NPK	Mon, Jan 7, 2013	69.99	70.48	68.64	69.41
427	NYSE	NPK	Fri, Jan 4, 2013	71.05	71.35	70.28	70.69
426	NYSE	NPK	Thu, Jan 3, 2013	71.97	72.72	70.47	70.58
425	NYSE	NPK	Wed, Jan 2, 2013	69.84	71.66	69.70	71.40
424	NYSE	NPK	Mon, Dec 31, 2012	67.80	69.29	67.33	69.10
423	NYSE	NPK	Fri, Dec 28, 2012	69.52	69.52	67.68	67.85
422	NYSE	NPK	Thu, Dec 27, 2012	68.64	69.03	67.70	68.83
421	NYSE	NPK	Wed, Dec 26, 2012	69.58	69.85	68.53	68.78
420	NYSE	NPK	Mon, Dec 24, 2012	69.12	71.02	68.60	70.12
419	NYSE	NPK	Fri, Dec 21, 2012	68.64	70.04	67.51	69.67
418	NYSE	NPK	Thu, Dec 20, 2012	70.17	70.48	68.07	68.99
417	NYSE	NPK	Wed, Dec 19, 2012	72.49	72.49	70.13	70.14
416	NYSE	NPK	Tue, Dec 18, 2012	72.34	72.79	72.12	72.51
415	NYSE	NPK	Mon, Dec 17, 2012	72.19	72.42	71.79	72.34
414	NYSE	NPK	Fri, Dec 14, 2012	71.14	72.64	71.12	72.17
413	NYSE	NPK	Thu, Dec 13, 2012	71.80	72.68	70.93	71.65
412	NYSE	NPK	Wed, Dec 12, 2012	80.00	80.83	78.03	78.03
411	NYSE	NPK	Tue, Dec 11, 2012	78.25	79.55	77.72	78.86
410	NYSE	NPK	Mon, Dec 10, 2012	78.64	79.12	77.77	78.29
409	NYSE	NPK	Fri, Dec 7, 2012	77.68	77.79	77.20	77.50
408	NYSE	NPK	Thu, Dec 6, 2012	76.77	77.67	76.77	77.66
407	NYSE	NPK	Wed, Dec 5, 2012	77.42	77.89	76.10	77.17
406	NYSE	NPK	Tue, Dec 4, 2012	77.01	77.55	76.48	77.30
405	NYSE	NPK	Mon, Dec 3, 2012	77.40	78.46	76.50	77.18
404	NYSE	NPK	Fri, Nov 30, 2012	75.98	76.99	75.41	76.76
403	NYSE	NPK	Thu, Nov 29, 2012	74.23	76.16	73.90	75.67
402	NYSE	NPK	Wed, Nov 28, 2012	72.87	73.71	72.02	73.65
401	NYSE	NPK	Tue, Nov 27, 2012	73.22	74.64	72.35	73.44
400	NYSE	NPK	Mon, Nov 26, 2012	73.15	73.94	72.00	73.22
399	NYSE	NPK	Fri, Nov 23, 2012	74.24	74.25	72.60	73.15
398	NYSE	NPK	Wed, Nov 21, 2012	74.21	74.33	73.30	73.91
397	NYSE	NPK	Tue, Nov 20, 2012	73.09	74.97	72.87	73.82
396	NYSE	NPK	Mon, Nov 19, 2012	72.30	73.61	72.20	73.47
395	NYSE	NPK	Fri, Nov 16, 2012	71.24	72.30	71.09	71.88
394	NYSE	NPK	Thu, Nov 15, 2012	70.21	72.27	70.21	71.68
393	NYSE	NPK	Wed, Nov 14, 2012	71.55	72.04	70.29	70.51
392	NYSE	NPK	Tue, Nov 13, 2012	71.56	72.72	71.50	71.64
391	NYSE	NPK	Mon, Nov 12, 2012	73.44	73.63	71.46	72.16
390	NYSE	NPK	Fri, Nov 9, 2012	71.89	74.02	71.52	73.43
389	NYSE	NPK	Thu, Nov 8, 2012	74.85	74.85	71.96	72.30
388	NYSE	NPK	Wed, Nov 7, 2012	75.41	75.94	73.76	73.76
387	NYSE	NPK	Tue, Nov 6, 2012	76.66	77.48	75.71	76.30
386	NYSE	NPK	Mon, Nov 5, 2012	75.24	77.72	75.11	75.81
385	NYSE	NPK	Fri, Nov 2, 2012	76.48	76.95	74.01	74.95
384	NYSE	NPK	Thu, Nov 1, 2012	74.23	76.98	73.90	76.88
383	NYSE	NPK	Wed, Oct 31, 2012	73.48	74.91	73.48	74.35
382	NYSE	NPK	Fri, Oct 26, 2012	73.54	74.50	73.10	74.50
381	NYSE	NPK	Thu, Oct 25, 2012	74.05	75.09	73.23	73.60
380	NYSE	NPK	Wed, Oct 24, 2012	74.60	74.60	73.11	74.04
379	NYSE	NPK	Tue, Oct 23, 2012	77.62	77.62	74.21	74.58
378	NYSE	NPK	Mon, Oct 22, 2012	80.40	80.40	77.11	77.62
377	NYSE	NPK	Fri, Oct 19, 2012	80.58	80.58	78.95	80.02
376	NYSE	NPK	Thu, Oct 18, 2012	81.70	82.06	80.70	81.25
375	NYSE	NPK	Wed, Oct 17, 2012	81.03	82.16	80.65	82.00
374	NYSE	NPK	Tue, Oct 16, 2012	80.52	81.26	79.98	80.79
373	NYSE	NPK	Mon, Oct 15, 2012	82.65	82.65	79.81	80.53
372	NYSE	NPK	Fri, Oct 12, 2012	82.18	82.60	80.36	80.69
371	NYSE	NPK	Thu, Oct 11, 2012	83.37	83.55	81.48	81.72
370	NYSE	NPK	Wed, Oct 10, 2012	82.11	82.11	80.90	82.00
369	NYSE	NPK	Tue, Oct 9, 2012	81.00	81.44	79.85	81.37
368	NYSE	NPK	Mon, Oct 8, 2012	78.74	81.08	78.74	80.71
367	NYSE	NPK	Fri, Oct 5, 2012	78.01	78.96	76.51	77.00
366	NYSE	NPK	Thu, Oct 4, 2012	76.39	78.28	75.19	78.01
365	NYSE	NPK	Wed, Oct 3, 2012	75.03	76.75	73.85	76.24
364	NYSE	NPK	Tue, Oct 2, 2012	75.00	75.05	73.46	74.70
363	NYSE	NPK	Mon, Oct 1, 2012	73.00	74.88	73.00	74.61
362	NYSE	NPK	Fri, Sep 28, 2012	74.27	74.28	72.68	72.88
361	NYSE	NPK	Thu, Sep 27, 2012	76.17	77.00	74.13	74.52
360	NYSE	NPK	Wed, Sep 26, 2012	74.74	76.34	73.82	75.90
359	NYSE	NPK	Tue, Sep 25, 2012	75.61	76.98	74.36	74.79
358	NYSE	NPK	Mon, Sep 24, 2012	74.97	75.90	74.44	75.13
357	NYSE	NPK	Fri, Sep 21, 2012	73.94	75.29	73.20	74.97
356	NYSE	NPK	Thu, Sep 20, 2012	72.81	73.12	71.99	72.76
355	NYSE	NPK	Wed, Sep 19, 2012	72.89	73.72	72.22	72.98
354	NYSE	NPK	Tue, Sep 18, 2012	72.50	73.70	71.90	72.93
353	NYSE	NPK	Mon, Sep 17, 2012	72.75	73.61	72.05	72.40
352	NYSE	NPK	Fri, Sep 14, 2012	73.27	74.15	72.49	72.74
351	NYSE	NPK	Thu, Sep 13, 2012	73.09	73.95	72.02	73.00
350	NYSE	NPK	Wed, Sep 12, 2012	73.22	73.22	72.23	72.67
349	NYSE	NPK	Tue, Sep 11, 2012	73.93	75.26	72.82	73.26
348	NYSE	NPK	Mon, Sep 10, 2012	72.52	74.00	72.52	73.59
347	NYSE	NPK	Fri, Sep 7, 2012	75.21	77.38	73.69	74.00
346	NYSE	NPK	Thu, Sep 6, 2012	71.98	74.85	71.98	74.85
345	NYSE	NPK	Wed, Sep 5, 2012	72.57	73.84	71.00	72.00
344	NYSE	NPK	Tue, Sep 4, 2012	73.09	73.12	70.28	72.24
343	NYSE	NPK	Fri, Aug 31, 2012	73.81	74.03	72.32	72.72
342	NYSE	NPK	Thu, Aug 30, 2012	73.59	73.88	72.99	73.15
341	NYSE	NPK	Wed, Aug 29, 2012	73.83	74.78	73.00	73.90
340	NYSE	NPK	Tue, Aug 28, 2012	72.36	73.51	71.34	73.39
339	NYSE	NPK	Mon, Aug 27, 2012	72.83	72.95	71.75	72.11
338	NYSE	NPK	Fri, Aug 24, 2012	72.44	73.20	71.20	71.85
337	NYSE	NPK	Thu, Aug 23, 2012	72.37	72.87	71.60	72.25
336	NYSE	NPK	Wed, Aug 22, 2012	74.81	74.81	71.66	72.38
335	NYSE	NPK	Tue, Aug 21, 2012	75.80	77.11	74.20	74.54
334	NYSE	NPK	Mon, Aug 20, 2012	75.00	75.65	73.57	75.35
333	NYSE	NPK	Fri, Aug 17, 2012	74.36	74.94	73.90	74.94
332	NYSE	NPK	Thu, Aug 16, 2012	73.03	74.88	73.03	74.47
331	NYSE	NPK	Wed, Aug 15, 2012	70.50	73.70	70.50	73.27
330	NYSE	NPK	Tue, Aug 14, 2012	71.72	71.72	70.45	70.99
329	NYSE	NPK	Mon, Aug 13, 2012	70.72	71.86	70.72	71.05
328	NYSE	NPK	Fri, Aug 10, 2012	69.75	70.99	69.26	70.66
327	NYSE	NPK	Thu, Aug 9, 2012	69.62	70.59	69.59	70.16
326	NYSE	NPK	Wed, Aug 8, 2012	69.48	70.36	68.88	69.49
325	NYSE	NPK	Tue, Aug 7, 2012	70.48	70.95	69.59	69.92
324	NYSE	NPK	Mon, Aug 6, 2012	68.01	70.89	67.25	69.80
323	NYSE	NPK	Fri, Aug 3, 2012	66.87	69.03	66.87	67.65
322	NYSE	NPK	Thu, Aug 2, 2012	65.66	66.95	65.12	65.87
321	NYSE	NPK	Wed, Aug 1, 2012	66.82	68.05	65.79	65.79
320	NYSE	NPK	Tue, Jul 31, 2012	66.22	67.26	65.83	66.54
319	NYSE	NPK	Mon, Jul 30, 2012	69.51	70.00	65.01	66.33
318	NYSE	NPK	Fri, Jul 27, 2012	67.54	69.93	66.65	69.26
317	NYSE	NPK	Thu, Jul 26, 2012	68.47	68.75	65.06	66.54
316	NYSE	NPK	Wed, Jul 25, 2012	68.75	68.75	67.08	67.20
315	NYSE	NPK	Tue, Jul 24, 2012	68.43	68.43	66.14	66.72
314	NYSE	NPK	Mon, Jul 23, 2012	69.81	69.81	68.31	68.46
313	NYSE	NPK	Fri, Jul 20, 2012	70.21	72.60	70.21	70.67
312	NYSE	NPK	Thu, Jul 19, 2012	71.21	72.00	69.60	71.28
311	NYSE	NPK	Wed, Jul 18, 2012	70.22	71.84	70.22	70.87
310	NYSE	NPK	Tue, Jul 17, 2012	70.55	71.11	70.03	70.58
309	NYSE	NPK	Mon, Jul 16, 2012	69.78	70.82	69.39	70.55
308	NYSE	NPK	Fri, Jul 13, 2012	68.62	69.99	68.37	69.70
307	NYSE	NPK	Thu, Jul 12, 2012	69.75	69.77	68.01	68.64
306	NYSE	NPK	Wed, Jul 11, 2012	71.30	72.16	69.98	70.39
305	NYSE	NPK	Tue, Jul 10, 2012	72.43	72.43	70.51	70.90
304	NYSE	NPK	Mon, Jul 9, 2012	72.77	73.79	72.61	72.94
303	NYSE	NPK	Fri, Jul 6, 2012	74.36	74.36	71.73	73.33
302	NYSE	NPK	Thu, Jul 5, 2012	72.27	73.94	72.27	72.72
301	NYSE	NPK	Tue, Jul 3, 2012	71.09	72.74	70.59	72.55
300	NYSE	NPK	Mon, Jul 2, 2012	69.46	71.60	68.61	71.60
299	NYSE	NPK	Fri, Jun 29, 2012	68.98	69.99	67.78	69.77
298	NYSE	NPK	Thu, Jun 28, 2012	67.53	67.88	66.75	67.50
297	NYSE	NPK	Wed, Jun 27, 2012	67.70	68.11	67.19	67.80
296	NYSE	NPK	Tue, Jun 26, 2012	68.26	68.57	66.08	67.07
295	NYSE	NPK	Mon, Jun 25, 2012	68.45	69.27	67.73	68.40
294	NYSE	NPK	Fri, Jun 22, 2012	67.49	69.48	67.49	69.31
293	NYSE	NPK	Thu, Jun 21, 2012	68.87	69.20	67.09	67.39
292	NYSE	NPK	Wed, Jun 20, 2012	69.44	70.08	68.20	69.26
291	NYSE	NPK	Tue, Jun 19, 2012	67.36	69.97	67.17	69.47
290	NYSE	NPK	Mon, Jun 18, 2012	68.48	68.90	67.09	67.52
289	NYSE	NPK	Fri, Jun 15, 2012	69.69	69.69	68.04	68.77
288	NYSE	NPK	Thu, Jun 14, 2012	67.03	68.61	67.03	68.32
287	NYSE	NPK	Wed, Jun 13, 2012	68.24	68.61	65.52	66.78
286	NYSE	NPK	Tue, Jun 12, 2012	69.94	69.94	67.81	68.29
285	NYSE	NPK	Mon, Jun 11, 2012	71.30	71.30	68.13	68.58
284	NYSE	NPK	Fri, Jun 8, 2012	71.46	72.65	70.02	70.27
283	NYSE	NPK	Thu, Jun 7, 2012	73.03	73.82	70.95	71.41
282	NYSE	NPK	Wed, Jun 6, 2012	70.48	72.49	70.48	72.48
281	NYSE	NPK	Tue, Jun 5, 2012	68.83	70.22	68.13	70.20
280	NYSE	NPK	Mon, Jun 4, 2012	66.56	69.17	66.56	68.43
279	NYSE	NPK	Fri, Jun 1, 2012	65.98	67.60	65.52	67.00
278	NYSE	NPK	Thu, May 31, 2012	65.90	67.93	65.33	67.06
277	NYSE	NPK	Wed, May 30, 2012	66.11	66.46	65.59	66.00
276	NYSE	NPK	Tue, May 29, 2012	66.76	66.76	65.78	66.43
275	NYSE	NPK	Fri, May 25, 2012	66.81	66.90	65.81	66.08
274	NYSE	NPK	Thu, May 24, 2012	67.15	67.15	65.65	66.97
273	NYSE	NPK	Wed, May 23, 2012	65.79	67.39	65.03	66.81
272	NYSE	NPK	Tue, May 22, 2012	67.28	67.57	65.43	66.33
271	NYSE	NPK	Mon, May 21, 2012	66.37	68.74	66.37	67.28
270	NYSE	NPK	Fri, May 18, 2012	65.76	66.62	65.76	66.18
269	NYSE	NPK	Thu, May 17, 2012	65.71	66.56	65.12	65.37
268	NYSE	NPK	Wed, May 16, 2012	66.92	67.58	65.80	65.85
267	NYSE	NPK	Tue, May 15, 2012	68.50	68.70	66.23	66.74
266	NYSE	NPK	Mon, May 14, 2012	70.10	70.34	68.00	68.24
265	NYSE	NPK	Fri, May 11, 2012	70.63	71.07	70.10	70.26
264	NYSE	NPK	Thu, May 10, 2012	70.99	71.39	70.51	71.18
263	NYSE	NPK	Wed, May 9, 2012	70.90	71.66	70.50	70.72
262	NYSE	NPK	Tue, May 8, 2012	71.13	71.56	70.88	71.47
261	NYSE	NPK	Mon, May 7, 2012	71.10	71.91	71.05	71.70
260	NYSE	NPK	Fri, May 4, 2012	72.72	72.99	70.81	71.10
259	NYSE	NPK	Thu, May 3, 2012	73.17	73.63	72.33	72.68
258	NYSE	NPK	Wed, May 2, 2012	72.96	73.99	72.68	73.23
257	NYSE	NPK	Tue, May 1, 2012	74.05	74.99	72.77	72.88
256	NYSE	NPK	Mon, Apr 30, 2012	73.90	74.46	73.16	73.72
255	NYSE	NPK	Fri, Apr 27, 2012	71.42	73.66	71.42	73.15
254	NYSE	NPK	Thu, Apr 26, 2012	72.12	72.40	70.85	71.19
253	NYSE	NPK	Wed, Apr 25, 2012	73.43	74.70	72.07	72.23
252	NYSE	NPK	Tue, Apr 24, 2012	72.33	73.00	72.12	72.56
251	NYSE	NPK	Mon, Apr 23, 2012	72.50	72.68	70.33	72.04
250	NYSE	NPK	Fri, Apr 20, 2012	72.86	73.71	72.45	73.31
249	NYSE	NPK	Thu, Apr 19, 2012	72.02	72.84	71.49	72.18
248	NYSE	NPK	Wed, Apr 18, 2012	73.07	73.07	71.87	72.01
247	NYSE	NPK	Tue, Apr 17, 2012	73.52	74.00	72.98	73.34
246	NYSE	NPK	Mon, Apr 16, 2012	73.17	73.35	72.30	72.89
245	NYSE	NPK	Fri, Apr 13, 2012	72.69	73.14	72.40	72.75
244	NYSE	NPK	Thu, Apr 12, 2012	72.01	73.33	72.01	72.94
243	NYSE	NPK	Wed, Apr 11, 2012	71.01	72.17	70.74	72.17
242	NYSE	NPK	Tue, Apr 10, 2012	71.61	71.93	70.00	70.48
241	NYSE	NPK	Mon, Apr 9, 2012	71.97	72.42	71.41	71.41
240	NYSE	NPK	Thu, Apr 5, 2012	72.98	73.34	72.69	72.89
239	NYSE	NPK	Wed, Apr 4, 2012	74.02	74.06	72.56	73.32
238	NYSE	NPK	Tue, Apr 3, 2012	75.59	76.10	74.08	74.45
237	NYSE	NPK	Mon, Apr 2, 2012	75.47	76.38	75.29	75.72
236	NYSE	NPK	Fri, Mar 30, 2012	76.65	77.34	75.02	75.86
235	NYSE	NPK	Thu, Mar 29, 2012	76.75	76.93	75.27	76.05
234	NYSE	NPK	Wed, Mar 28, 2012	78.09	78.09	76.52	77.09
233	NYSE	NPK	Tue, Mar 27, 2012	79.49	79.49	77.61	77.74
232	NYSE	NPK	Mon, Mar 26, 2012	79.36	80.01	78.35	79.18
231	NYSE	NPK	Fri, Mar 23, 2012	78.00	78.40	77.68	78.22
230	NYSE	NPK	Thu, Mar 22, 2012	77.75	78.46	77.56	77.99
229	NYSE	NPK	Wed, Mar 21, 2012	78.76	79.00	78.10	78.61
228	NYSE	NPK	Tue, Mar 20, 2012	79.12	79.50	78.51	78.52
227	NYSE	NPK	Mon, Mar 19, 2012	78.92	79.60	78.28	79.58
226	NYSE	NPK	Fri, Mar 16, 2012	79.35	79.35	77.97	78.74
225	NYSE	NPK	Thu, Mar 15, 2012	78.86	79.35	78.31	79.08
224	NYSE	NPK	Wed, Mar 14, 2012	79.50	79.56	77.27	78.69
223	NYSE	NPK	Tue, Mar 13, 2012	79.72	80.10	78.01	79.59
222	NYSE	NPK	Mon, Mar 12, 2012	80.39	80.63	79.02	79.30
221	NYSE	NPK	Fri, Mar 9, 2012	78.90	80.75	78.66	79.93
220	NYSE	NPK	Thu, Mar 8, 2012	78.24	79.31	77.85	79.19
219	NYSE	NPK	Wed, Mar 7, 2012	76.60	78.86	76.60	77.86
218	NYSE	NPK	Tue, Mar 6, 2012	77.00	77.50	75.67	76.45
217	NYSE	NPK	Mon, Mar 5, 2012	80.50	80.50	76.20	77.71
216	NYSE	NPK	Fri, Mar 2, 2012	83.60	83.86	79.96	80.20
215	NYSE	NPK	Thu, Mar 1, 2012	86.66	87.13	83.05	83.59
214	NYSE	NPK	Wed, Feb 29, 2012	90.19	90.77	86.08	86.59
213	NYSE	NPK	Tue, Feb 28, 2012	96.50	96.51	95.18	95.29
212	NYSE	NPK	Mon, Feb 27, 2012	98.38	98.38	95.75	96.55
211	NYSE	NPK	Fri, Feb 24, 2012	100.52	100.52	98.09	98.38
210	NYSE	NPK	Thu, Feb 23, 2012	100.02	100.52	99.35	99.69
209	NYSE	NPK	Wed, Feb 22, 2012	101.90	101.90	99.36	99.90
208	NYSE	NPK	Tue, Feb 21, 2012	100.31	101.78	99.90	101.48
207	NYSE	NPK	Fri, Feb 17, 2012	99.70	100.51	99.04	100.31
206	NYSE	NPK	Thu, Feb 16, 2012	99.25	99.84	98.62	99.23
205	NYSE	NPK	Wed, Feb 15, 2012	100.77	100.87	97.88	99.08
204	NYSE	NPK	Tue, Feb 14, 2012	100.43	101.22	99.25	100.19
203	NYSE	NPK	Mon, Feb 13, 2012	101.31	101.98	100.25	101.12
202	NYSE	NPK	Fri, Feb 10, 2012	99.44	101.35	99.34	100.35
201	NYSE	NPK	Thu, Feb 9, 2012	101.65	102.80	100.39	100.39
200	NYSE	NPK	Wed, Feb 8, 2012	100.48	101.69	100.45	101.65
199	NYSE	NPK	Tue, Feb 7, 2012	101.17	101.40	99.08	100.10
198	NYSE	NPK	Mon, Feb 6, 2012	102.06	102.24	100.28	101.17
197	NYSE	NPK	Fri, Feb 3, 2012	100.09	103.06	99.44	102.06
196	NYSE	NPK	Thu, Feb 2, 2012	99.00	100.05	98.78	99.40
195	NYSE	NPK	Wed, Feb 1, 2012	97.87	99.99	97.72	99.32
194	NYSE	NPK	Tue, Jan 31, 2012	98.83	99.49	97.69	97.72
193	NYSE	NPK	Mon, Jan 30, 2012	99.30	99.91	97.53	98.40
192	NYSE	NPK	Fri, Jan 27, 2012	99.60	100.46	96.81	99.61
191	NYSE	NPK	Thu, Jan 26, 2012	101.00	103.37	98.52	99.60
190	NYSE	NPK	Wed, Jan 25, 2012	101.60	102.05	100.03	100.32
189	NYSE	NPK	Tue, Jan 24, 2012	103.35	104.00	101.67	102.13
188	NYSE	NPK	Mon, Jan 23, 2012	103.96	104.87	102.60	103.50
187	NYSE	NPK	Fri, Jan 20, 2012	103.88	105.32	101.52	103.63
186	NYSE	NPK	Thu, Jan 19, 2012	100.47	105.67	100.47	103.56
185	NYSE	NPK	Wed, Jan 18, 2012	100.22	100.74	99.49	100.48
184	NYSE	NPK	Tue, Jan 17, 2012	99.37	100.48	98.71	100.04
183	NYSE	NPK	Fri, Jan 13, 2012	98.96	99.02	97.86	98.72
182	NYSE	NPK	Thu, Jan 12, 2012	96.54	101.12	96.07	99.32
181	NYSE	NPK	Wed, Jan 11, 2012	95.18	96.84	95.18	96.27
180	NYSE	NPK	Tue, Jan 10, 2012	95.70	96.75	94.82	95.05
179	NYSE	NPK	Mon, Jan 9, 2012	94.96	95.27	94.00	94.30
178	NYSE	NPK	Fri, Jan 6, 2012	94.78	94.78	93.50	94.34
177	NYSE	NPK	Thu, Jan 5, 2012	94.38	94.97	93.30	94.49
176	NYSE	NPK	Wed, Jan 4, 2012	94.45	95.48	94.14	94.41
175	NYSE	NPK	Tue, Jan 3, 2012	94.98	95.73	94.13	94.76
174	NYSE	NPK	Fri, Dec 30, 2011	96.65	96.65	93.45	93.60
173	NYSE	NPK	Thu, Dec 29, 2011	96.33	97.32	95.99	96.96
172	NYSE	NPK	Wed, Dec 28, 2011	97.11	97.42	95.86	96.46
171	NYSE	NPK	Tue, Dec 27, 2011	97.15	97.39	96.30	97.07
170	NYSE	NPK	Fri, Dec 23, 2011	98.10	98.10	96.84	97.42
169	NYSE	NPK	Thu, Dec 22, 2011	97.09	98.15	95.51	97.42
168	NYSE	NPK	Wed, Dec 21, 2011	95.09	97.00	94.06	96.80
167	NYSE	NPK	Tue, Dec 20, 2011	93.68	95.52	93.68	95.38
166	NYSE	NPK	Mon, Dec 19, 2011	94.91	94.91	91.43	92.17
165	NYSE	NPK	Fri, Dec 16, 2011	93.11	94.50	92.00	93.89
164	NYSE	NPK	Thu, Dec 15, 2011	91.72	93.02	91.34	92.22
163	NYSE	NPK	Wed, Dec 14, 2011	91.11	91.76	90.10	90.75
162	NYSE	NPK	Tue, Dec 13, 2011	92.94	94.66	91.15	91.50
161	NYSE	NPK	Mon, Dec 12, 2011	91.68	92.76	91.41	92.34
160	NYSE	NPK	Fri, Dec 9, 2011	91.03	93.24	90.60	93.24
159	NYSE	NPK	Thu, Dec 8, 2011	92.99	93.71	90.75	90.75
158	NYSE	NPK	Wed, Dec 7, 2011	93.19	95.02	92.43	94.21
157	NYSE	NPK	Tue, Dec 6, 2011	92.47	94.87	91.77	94.07
156	NYSE	NPK	Mon, Dec 5, 2011	93.00	93.00	91.75	92.68
155	NYSE	NPK	Fri, Dec 2, 2011	95.37	95.55	92.36	93.29
154	NYSE	NPK	Thu, Dec 1, 2011	93.81	96.37	92.47	94.38
153	NYSE	NPK	Wed, Nov 30, 2011	95.00	95.00	91.87	94.47
152	NYSE	NPK	Tue, Nov 29, 2011	92.12	92.82	90.54	92.12
151	NYSE	NPK	Mon, Nov 28, 2011	89.06	93.09	89.06	91.98
150	NYSE	NPK	Fri, Nov 25, 2011	88.10	89.86	87.10	87.69
149	NYSE	NPK	Wed, Nov 23, 2011	89.97	90.13	87.83	88.52
148	NYSE	NPK	Tue, Nov 22, 2011	90.74	91.50	89.99	90.06
147	NYSE	NPK	Mon, Nov 21, 2011	92.52	92.88	90.81	90.81
146	NYSE	NPK	Fri, Nov 18, 2011	92.90	94.27	92.08	93.79
145	NYSE	NPK	Thu, Nov 17, 2011	94.27	94.59	92.40	92.73
144	NYSE	NPK	Wed, Nov 16, 2011	93.57	95.96	93.34	93.88
143	NYSE	NPK	Tue, Nov 15, 2011	92.68	95.03	92.29	94.77
142	NYSE	NPK	Mon, Nov 14, 2011	95.84	96.25	92.95	93.36
141	NYSE	NPK	Fri, Nov 11, 2011	95.00	95.68	93.94	95.68
140	NYSE	NPK	Thu, Nov 10, 2011	93.24	94.31	91.80	93.42
139	NYSE	NPK	Wed, Nov 9, 2011	93.04	94.90	91.51	91.66
138	NYSE	NPK	Tue, Nov 8, 2011	95.34	96.13	92.86	95.28
137	NYSE	NPK	Mon, Nov 7, 2011	94.75	95.30	92.84	95.20
136	NYSE	NPK	Fri, Nov 4, 2011	94.50	95.49	93.74	95.12
135	NYSE	NPK	Thu, Nov 3, 2011	94.29	96.18	92.37	95.86
134	NYSE	NPK	Wed, Nov 2, 2011	93.19	94.94	91.35	93.39
133	NYSE	NPK	Tue, Nov 1, 2011	92.76	94.62	90.71	91.21
132	NYSE	NPK	Mon, Oct 31, 2011	98.00	98.13	95.35	95.50
131	NYSE	NPK	Fri, Oct 28, 2011	98.33	99.29	98.00	98.16
130	NYSE	NPK	Thu, Oct 27, 2011	96.67	100.00	96.67	99.94
129	NYSE	NPK	Wed, Oct 26, 2011	95.87	96.23	93.72	94.88
128	NYSE	NPK	Tue, Oct 25, 2011	97.28	97.28	94.37	94.51
127	NYSE	NPK	Mon, Oct 24, 2011	96.79	97.92	96.09	97.23
126	NYSE	NPK	Fri, Oct 21, 2011	94.90	96.33	94.27	96.20
125	NYSE	NPK	Thu, Oct 20, 2011	93.00	93.95	91.00	93.18
124	NYSE	NPK	Wed, Oct 19, 2011	95.98	97.89	92.00	92.89
123	NYSE	NPK	Tue, Oct 18, 2011	92.92	96.57	92.09	96.11
122	NYSE	NPK	Mon, Oct 17, 2011	94.87	94.87	92.35	92.90
121	NYSE	NPK	Fri, Oct 14, 2011	94.94	96.00	93.52	95.96
120	NYSE	NPK	Thu, Oct 13, 2011	93.04	93.92	90.02	93.90
119	NYSE	NPK	Wed, Oct 12, 2011	94.28	94.77	93.52	93.93
118	NYSE	NPK	Tue, Oct 11, 2011	91.78	94.88	91.69	93.97
117	NYSE	NPK	Mon, Oct 10, 2011	92.10	92.95	90.67	92.91
116	NYSE	NPK	Fri, Oct 7, 2011	91.80	95.60	89.13	90.61
115	NYSE	NPK	Thu, Oct 6, 2011	90.84	92.19	90.13	92.11
114	NYSE	NPK	Wed, Oct 5, 2011	90.33	91.83	90.02	91.36
113	NYSE	NPK	Tue, Oct 4, 2011	82.76	90.59	82.76	90.00
112	NYSE	NPK	Mon, Oct 3, 2011	85.52	86.80	83.00	83.01
111	NYSE	NPK	Fri, Sep 30, 2011	87.63	89.45	86.41	86.91
110	NYSE	NPK	Thu, Sep 29, 2011	88.50	89.77	86.48	88.71
109	NYSE	NPK	Wed, Sep 28, 2011	92.52	92.68	86.05	86.31
108	NYSE	NPK	Tue, Sep 27, 2011	91.00	94.31	90.01	92.18
107	NYSE	NPK	Mon, Sep 26, 2011	88.95	89.57	87.26	89.57
106	NYSE	NPK	Fri, Sep 23, 2011	86.25	88.57	86.25	88.17
105	NYSE	NPK	Thu, Sep 22, 2011	86.48	87.51	85.55	86.18
104	NYSE	NPK	Wed, Sep 21, 2011	89.24	91.02	86.30	86.45
103	NYSE	NPK	Tue, Sep 20, 2011	91.95	92.10	88.94	89.98
102	NYSE	NPK	Mon, Sep 19, 2011	91.86	92.99	91.04	91.89
101	NYSE	NPK	Fri, Sep 16, 2011	92.59	92.80	92.05	92.75
100	NYSE	NPK	Thu, Sep 15, 2011	94.28	95.03	91.58	92.58
99	NYSE	NPK	Wed, Sep 14, 2011	95.93	96.38	91.90	93.77
98	NYSE	NPK	Tue, Sep 13, 2011	90.42	95.90	90.42	95.46
97	NYSE	NPK	Mon, Sep 12, 2011	87.71	90.07	87.64	89.94
96	NYSE	NPK	Fri, Sep 9, 2011	87.51	89.69	87.30	87.71
95	NYSE	NPK	Thu, Sep 8, 2011	92.39	93.05	90.03	90.03
94	NYSE	NPK	Wed, Sep 7, 2011	91.63	93.84	90.06	92.83
93	NYSE	NPK	Tue, Sep 6, 2011	89.30	91.12	88.62	90.33
92	NYSE	NPK	Fri, Sep 2, 2011	92.74	94.48	90.00	91.82
91	NYSE	NPK	Thu, Sep 1, 2011	96.74	97.63	94.00	94.73
90	NYSE	NPK	Wed, Aug 31, 2011	97.67	98.07	95.97	97.00
89	NYSE	NPK	Tue, Aug 30, 2011	95.55	97.26	94.00	96.88
88	NYSE	NPK	Mon, Aug 29, 2011	93.00	95.75	93.00	95.66
87	NYSE	NPK	Fri, Aug 26, 2011	88.67	92.17	87.65	92.10
86	NYSE	NPK	Thu, Aug 25, 2011	93.00	93.38	88.68	88.92
85	NYSE	NPK	Wed, Aug 24, 2011	90.45	92.33	88.86	92.33
84	NYSE	NPK	Tue, Aug 23, 2011	87.24	90.67	86.30	90.49
83	NYSE	NPK	Mon, Aug 22, 2011	90.22	90.56	86.32	86.96
82	NYSE	NPK	Fri, Aug 19, 2011	88.11	91.43	88.11	88.77
81	NYSE	NPK	Thu, Aug 18, 2011	90.84	91.67	88.98	89.08
80	NYSE	NPK	Wed, Aug 17, 2011	94.37	94.38	92.47	93.40
79	NYSE	NPK	Tue, Aug 16, 2011	93.80	94.30	92.67	93.52
78	NYSE	NPK	Mon, Aug 15, 2011	93.81	95.00	93.34	95.00
77	NYSE	NPK	Fri, Aug 12, 2011	94.05	94.43	92.04	92.29
76	NYSE	NPK	Thu, Aug 11, 2011	88.02	95.00	88.01	93.88
75	NYSE	NPK	Wed, Aug 10, 2011	93.05	95.04	89.50	89.77
74	NYSE	NPK	Tue, Aug 9, 2011	87.90	94.17	87.02	94.05
73	NYSE	NPK	Mon, Aug 8, 2011	89.88	91.56	87.01	87.01
72	NYSE	NPK	Fri, Aug 5, 2011	92.00	92.97	89.20	91.01
71	NYSE	NPK	Thu, Aug 4, 2011	93.02	93.76	90.00	90.48
70	NYSE	NPK	Wed, Aug 3, 2011	94.45	94.48	91.21	93.50
69	NYSE	NPK	Tue, Aug 2, 2011	97.98	100.08	94.49	94.49
68	NYSE	NPK	Mon, Aug 1, 2011	102.53	102.53	96.71	98.16
67	NYSE	NPK	Fri, Jul 29, 2011	100.00	101.97	99.35	101.74
66	NYSE	NPK	Thu, Jul 28, 2011	101.19	103.04	100.18	100.18
65	NYSE	NPK	Wed, Jul 27, 2011	101.92	102.77	101.15	101.16
64	NYSE	NPK	Tue, Jul 26, 2011	103.01	103.49	102.00	102.39
63	NYSE	NPK	Mon, Jul 25, 2011	102.01	103.82	102.01	102.83
62	NYSE	NPK	Fri, Jul 22, 2011	104.85	104.98	103.18	103.18
61	NYSE	NPK	Thu, Jul 21, 2011	104.00	105.44	104.00	105.40
60	NYSE	NPK	Wed, Jul 20, 2011	104.32	105.25	102.22	103.18
59	NYSE	NPK	Tue, Jul 19, 2011	102.90	103.86	102.38	103.79
58	NYSE	NPK	Mon, Jul 18, 2011	102.50	103.35	101.08	101.75
57	NYSE	NPK	Fri, Jul 15, 2011	100.73	102.36	100.57	102.15
56	NYSE	NPK	Thu, Jul 14, 2011	102.50	102.99	100.65	100.65
55	NYSE	NPK	Wed, Jul 13, 2011	102.69	102.95	101.05	102.23
54	NYSE	NPK	Tue, Jul 12, 2011	101.01	102.38	101.01	101.78
53	NYSE	NPK	Mon, Jul 11, 2011	101.33	101.65	100.76	101.18
52	NYSE	NPK	Fri, Jul 8, 2011	101.52	103.14	101.18	102.92
51	NYSE	NPK	Thu, Jul 7, 2011	103.54	104.32	102.22	102.97
50	NYSE	NPK	Wed, Jul 6, 2011	102.00	102.65	101.52	102.44
49	NYSE	NPK	Tue, Jul 5, 2011	102.19	102.19	101.17	101.77
48	NYSE	NPK	Fri, Jul 1, 2011	102.07	102.65	101.43	102.15
47	NYSE	NPK	Thu, Jun 30, 2011	101.60	102.38	100.91	101.49
46	NYSE	NPK	Wed, Jun 29, 2011	101.57	101.57	100.08	100.94
45	NYSE	NPK	Tue, Jun 28, 2011	101.10	101.70	100.03	101.10
44	NYSE	NPK	Mon, Jun 27, 2011	99.82	101.03	99.82	100.65
43	NYSE	NPK	Fri, Jun 24, 2011	100.01	100.01	98.90	99.74
42	NYSE	NPK	Thu, Jun 23, 2011	98.24	99.62	98.04	99.62
41	NYSE	NPK	Wed, Jun 22, 2011	99.52	101.13	98.74	99.52
40	NYSE	NPK	Tue, Jun 21, 2011	99.44	99.95	98.93	99.87
39	NYSE	NPK	Mon, Jun 20, 2011	97.95	98.94	97.72	98.75
38	NYSE	NPK	Fri, Jun 17, 2011	99.39	100.04	98.00	98.00
37	NYSE	NPK	Thu, Jun 16, 2011	98.07	99.81	98.00	98.50
36	NYSE	NPK	Wed, Jun 15, 2011	98.97	100.45	96.50	98.19
35	NYSE	NPK	Tue, Jun 14, 2011	98.87	100.08	98.04	99.68
34	NYSE	NPK	Mon, Jun 13, 2011	97.33	98.49	96.92	96.92
33	NYSE	NPK	Fri, Jun 10, 2011	96.67	99.10	95.57	96.60
32	NYSE	NPK	Thu, Jun 9, 2011	96.91	99.34	96.87	96.87
31	NYSE	NPK	Wed, Jun 8, 2011	96.51	98.00	96.50	96.68
30	NYSE	NPK	Tue, Jun 7, 2011	96.79	97.83	96.50	96.64
29	NYSE	NPK	Mon, Jun 6, 2011	97.75	98.00	96.13	96.18
28	NYSE	NPK	Fri, Jun 3, 2011	99.51	99.90	97.95	97.96
27	NYSE	NPK	Thu, Jun 2, 2011	100.21	101.65	99.61	99.89
26	NYSE	NPK	Wed, Jun 1, 2011	104.85	105.62	99.69	99.88
25	NYSE	NPK	Tue, May 31, 2011	104.61	105.27	103.82	104.85
24	NYSE	NPK	Fri, May 27, 2011	103.07	104.07	102.96	103.46
23	NYSE	NPK	Thu, May 26, 2011	102.42	102.95	101.40	102.84
22	NYSE	NPK	Wed, May 25, 2011	101.95	102.72	101.71	102.51
21	NYSE	NPK	Tue, May 24, 2011	104.01	104.01	101.63	102.20
20	NYSE	NPK	Mon, May 23, 2011	104.02	104.21	102.09	103.00
19	NYSE	NPK	Fri, May 20, 2011	106.43	108.02	104.90	105.13
18	NYSE	NPK	Thu, May 19, 2011	107.41	109.00	106.20	106.87
17	NYSE	NPK	Wed, May 18, 2011	107.09	108.50	106.07	106.51
16	NYSE	NPK	Tue, May 17, 2011	106.00	106.91	105.80	106.40
15	NYSE	NPK	Mon, May 16, 2011	109.27	109.29	106.29	106.31
14	NYSE	NPK	Fri, May 13, 2011	111.74	112.95	108.68	109.27
13	NYSE	NPK	Thu, May 12, 2011	109.84	111.66	108.46	111.51
12	NYSE	NPK	Wed, May 11, 2011	112.36	112.36	108.33	109.23
11	NYSE	NPK	Tue, May 10, 2011	111.48	112.64	110.61	112.54
10	NYSE	NPK	Mon, May 9, 2011	111.69	112.19	110.00	110.55
9	NYSE	NPK	Fri, May 6, 2011	111.50	112.42	110.38	110.65
8	NYSE	NPK	Thu, May 5, 2011	116.82	111.45	108.41	109.54
7	NYSE	NPK	Wed, May 4, 2011	108.84	108.89	107.31	107.31
6	NYSE	NPK	Tue, May 3, 2011	110.91	111.70	107.97	108.89
5	NYSE	NPK	Mon, May 2, 2011	111.10	112.63	110.60	110.91
4	NYSE	NPK	Fri, Apr 29, 2011	106.11	111.23	106.11	111.03
3	NYSE	NPK	Thu, Apr 28, 2011	110.25	110.25	108.76	110.00
2	NYSE	NPK	Wed, Apr 27, 2011	109.82	110.24	108.58	110.24
1	NYSE	NPK	Tue, Apr 26, 2011	108.80	110.49	108.44	109.82
#	Exchange	Symbol	Date	Open	High	Low	Close

National Presto Industries Inc NYSE:NPK Historical Prices

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