Date	Open	High	Low	Close	Volume	Change (%)
Apr 30, 2013	84.01	84.08	83.93	83.97	2,461,452	-0.02(-0.02%)
Apr 29, 2013	83.93	83.99	83.92	83.99	1,154,744	+0.05(+0.06%)
Apr 26, 2013	83.84	83.96	83.76	83.93	901,168	+0.17(+0.21%)
Apr 25, 2013	83.77	83.79	83.72	83.76	1,127,275	-0.04(-0.04%)
Apr 24, 2013	83.77	83.85	83.76	83.80	988,099	-0.02(-0.02%)
Apr 23, 2013	83.90	83.95	83.78	83.81	993,432	-0.04(-0.04%)
Apr 22, 2013	83.77	83.85	83.75	83.85	1,479,445	+0.11(+0.13%)
Apr 19, 2013	83.75	83.77	83.71	83.74	496,157	+0.01(+0.01%)
Apr 18, 2013	83.78	83.83	83.72	83.74	1,532,570	-0.02(-0.02%)
Apr 17, 2013	83.71	83.90	83.71	83.75	1,432,469	+0.00(+0.00%)
Apr 16, 2013	83.73	83.77	83.68	83.75	787,626	+0.00(+0.00%)
Apr 15, 2013	83.68	83.78	83.66	83.75	2,021,203	+0.04(+0.04%)
Apr 12, 2013	83.58	83.72	83.54	83.71	1,160,439	+0.27(+0.32%)
Apr 11, 2013	83.44	83.50	83.43	83.44	1,377,895	+0.02(+0.02%)
Apr 10, 2013	83.49	83.50	83.39	83.43	1,702,325	-0.17(-0.21%)
Apr 09, 2013	83.64	83.66	83.53	83.60	1,708,902	+0.03(+0.04%)
Apr 08, 2013	83.70	83.74	83.57	83.57	1,364,137	-0.14(-0.17%)
Apr 05, 2013	83.69	83.76	83.65	83.71	1,346,618	+0.24(+0.29%)
Apr 04, 2013	83.35	83.47	83.35	83.47	1,678,710	+0.23(+0.28%)
Apr 03, 2013	83.22	83.33	83.18	83.24	1,674,020	+0.09(+0.11%)
Apr 02, 2013	83.20	83.20	83.12	83.15	1,162,577	-0.09(-0.11%)
Apr 01, 2013	83.14	83.25	83.10	83.24	2,099,794	+0.08(+0.09%)
Mar 28, 2013	83.13	83.20	83.11	83.17	3,119,953	+0.00(+0.00%)
Mar 27, 2013	83.08	83.18	83.05	83.17	1,369,700	+0.17(+0.21%)
Mar 26, 2013	82.85	83.01	82.85	82.99	1,284,377	+0.10(+0.12%)
Mar 25, 2013	82.92	83.01	82.89	82.89	1,306,221	-0.03(-0.04%)
Mar 22, 2013	83.01	83.01	82.88	82.92	1,033,117	+0.03(+0.04%)
Mar 21, 2013	82.94	82.96	82.88	82.89	1,206,783	+0.02(+0.02%)
Mar 20, 2013	82.91	82.98	82.86	82.88	1,697,702	-0.09(-0.11%)
Mar 19, 2013	82.93	83.08	82.91	82.97	1,470,864	+0.12(+0.15%)
Mar 18, 2013	82.89	82.90	82.83	82.85	1,640,211	+0.08(+0.09%)
Mar 15, 2013	82.67	82.80	82.67	82.77	880,715	+0.08(+0.09%)
Mar 14, 2013	82.54	82.73	82.54	82.70	1,452,100	+0.09(+0.11%)
Mar 13, 2013	82.56	82.68	82.56	82.61	1,513,787	-0.07(-0.08%)
Mar 12, 2013	82.57	82.68	82.56	82.68	2,205,140	+0.15(+0.18%)
Mar 11, 2013	82.50	82.56	82.48	82.53	1,549,012	+0.05(+0.05%)
Mar 08, 2013	82.51	82.59	82.45	82.48	2,671,891	-0.24(-0.29%)
Mar 07, 2013	82.81	82.81	82.59	82.72	1,393,905	-0.17(-0.21%)
Mar 06, 2013	82.92	82.95	82.86	82.89	1,297,104	-0.09(-0.11%)
Mar 05, 2013	83.02	83.03	82.98	82.98	1,070,915	-0.07(-0.08%)
Mar 04, 2013	83.11	83.11	83.04	83.05	1,041,213	-0.06(-0.07%)
Mar 01, 2013	83.10	83.16	83.04	83.11	1,433,699	+0.03(+0.04%)
Feb 28, 2013	83.01	83.08	82.98	83.08	1,616,542	+0.07(+0.09%)
Feb 27, 2013	83.08	83.09	82.93	83.01	694,010	+0.02(+0.03%)
Feb 26, 2013	82.94	83.09	82.94	82.99	1,068,810	-0.02(-0.03%)
Feb 25, 2013	82.68	83.05	82.61	83.01	1,576,007	+0.31(+0.38%)
Feb 22, 2013	82.69	82.72	82.68	82.69	1,274,743	+0.05(+0.05%)
Feb 21, 2013	82.66	82.74	82.64	82.65	1,106,529	+0.04(+0.05%)
Feb 20, 2013	82.53	82.65	82.48	82.60	2,706,433	+0.05(+0.06%)
Feb 19, 2013	82.66	82.68	82.51	82.55	1,855,867	-0.10(-0.12%)
Feb 15, 2013	82.60	82.65	82.51	82.65	2,487,387	+0.01(+0.01%)
Feb 14, 2013	82.47	82.64	82.47	82.64	976,319	+0.15(+0.18%)
Feb 13, 2013	82.42	82.53	82.42	82.49	1,203,463	-0.08(-0.10%)
Feb 12, 2013	82.54	82.60	82.52	82.57	889,393	-0.02(-0.02%)
Feb 11, 2013	82.65	82.65	82.56	82.59	1,846,293	-0.08(-0.10%)
Feb 08, 2013	82.59	82.67	82.50	82.67	908,918	+0.02(+0.03%)
Feb 07, 2013	82.60	82.72	82.58	82.65	1,531,182	+0.03(+0.04%)
Feb 06, 2013	82.55	82.66	82.54	82.62	1,640,149	-0.03(-0.04%)
Feb 04, 2013	82.53	82.67	82.53	82.65	1,074,248	+0.23(+0.28%)

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