Date	Open	High	Low	Close	Volume	Change (%)
Apr 29, 2011	55.40	56.12	55.35	55.98	1,130,012	+0.66(+1.19%)
Apr 28, 2011	54.96	55.53	54.84	55.32	880,501	+0.24(+0.43%)
Apr 27, 2011	55.19	55.54	54.87	55.08	977,450	-0.16(-0.29%)
Apr 26, 2011	55.01	55.64	54.83	55.24	1,093,250	+0.35(+0.63%)
Apr 25, 2011	55.37	55.37	54.48	54.89	925,453	-0.93(-1.67%)
Apr 21, 2011	56.61	57.21	54.78	55.82	1,705,201	-0.75(-1.33%)
Apr 20, 2011	56.14	56.93	56.14	56.58	1,137,738	+0.95(+1.71%)
Apr 19, 2011	55.31	55.87	55.30	55.63	881,304	+0.35(+0.64%)
Apr 18, 2011	55.36	55.46	54.74	55.27	1,113,206	-0.81(-1.44%)
Apr 15, 2011	55.42	56.13	55.05	56.08	1,526,025	+0.96(+1.74%)
Apr 14, 2011	55.47	55.51	54.46	55.12	1,732,309	-0.69(-1.24%)
Apr 13, 2011	56.54	56.67	55.46	55.82	1,410,760	-0.51(-0.90%)
Apr 12, 2011	56.47	56.88	56.29	56.32	1,140,773	-0.56(-0.98%)
Apr 11, 2011	56.46	57.12	56.46	56.88	1,030,645	+0.43(+0.77%)
Apr 08, 2011	57.47	57.75	56.23	56.45	1,335,899	-0.77(-1.35%)
Apr 07, 2011	56.96	57.61	56.89	57.22	833,128	+0.11(+0.19%)
Apr 06, 2011	57.37	57.43	56.74	57.11	529,792	-0.02(-0.03%)
Apr 05, 2011	57.16	57.23	56.78	57.13	1,004,160	-0.12(-0.22%)
Apr 04, 2011	57.83	57.84	57.06	57.25	968,212	-0.55(-0.95%)
Apr 01, 2011	57.76	58.06	57.63	57.80	988,577	+0.29(+0.51%)
Mar 31, 2011	56.52	57.57	56.37	57.51	1,267,635	+0.76(+1.34%)
Mar 30, 2011	56.57	56.84	56.38	56.75	574,331	+0.42(+0.74%)
Mar 29, 2011	56.13	56.41	55.89	56.33	1,132,988	+0.05(+0.09%)
Mar 28, 2011	56.39	56.63	56.28	56.28	966,832	-0.04(-0.08%)
Mar 25, 2011	56.51	56.70	56.09	56.32	1,002,931	-0.02(-0.03%)
Mar 24, 2011	56.43	56.58	56.13	56.34	792,405	+0.12(+0.21%)
Mar 23, 2011	56.10	56.39	55.69	56.22	830,412	-0.12(-0.20%)
Mar 22, 2011	56.46	56.69	56.33	56.34	885,748	-0.24(-0.42%)
Mar 21, 2011	56.95	56.98	56.46	56.58	952,739	+0.89(+1.59%)
Mar 18, 2011	55.59	55.88	55.22	55.69	1,502,090	+0.85(+1.55%)
Mar 17, 2011	54.95	55.11	54.45	54.84	1,318,629	+0.70(+1.29%)
Mar 16, 2011	55.04	55.43	53.71	54.14	1,356,409	-1.19(-2.15%)
Mar 15, 2011	54.98	55.71	54.76	55.33	1,140,507	-0.62(-1.11%)
Mar 14, 2011	55.99	56.73	55.62	55.95	880,088	-0.56(-0.99%)
Mar 11, 2011	55.89	56.77	55.48	56.51	940,455	+0.50(+0.89%)
Mar 10, 2011	56.69	57.13	55.72	56.01	1,119,280	-1.31(-2.29%)
Mar 09, 2011	57.07	57.66	56.84	57.32	982,579	+0.06(+0.11%)
Mar 08, 2011	56.55	57.52	56.32	57.26	926,419	+0.93(+1.65%)
Mar 07, 2011	57.27	57.63	56.08	56.33	581,968	-0.77(-1.35%)
Mar 04, 2011	57.36	57.64	56.53	57.10	1,187,019	-0.24(-0.42%)
Mar 03, 2011	56.70	57.66	56.62	57.34	677,860	+1.30(+2.33%)
Mar 02, 2011	55.95	56.22	55.51	56.04	930,388	+0.04(+0.06%)
Mar 01, 2011	57.39	57.46	55.85	56.00	822,180	-1.16(-2.03%)
Feb 28, 2011	57.62	57.69	57.00	57.16	1,163,509	-0.28(-0.49%)
Feb 25, 2011	57.44	57.87	57.24	57.45	863,157	+0.45(+0.79%)
Feb 24, 2011	56.23	57.19	56.23	57.00	1,279,892	+0.62(+1.10%)
Feb 23, 2011	57.37	57.72	55.99	56.37	942,247	-0.91(-1.59%)
Feb 22, 2011	58.78	58.78	57.12	57.29	1,108,919	-2.03(-3.42%)
Feb 18, 2011	58.31	59.70	58.29	59.32	1,998,094	+1.14(+1.95%)
Feb 17, 2011	58.51	58.65	57.74	58.18	1,166,419	-0.45(-0.77%)
Feb 16, 2011	58.85	58.97	57.99	58.64	747,313	-0.01(-0.02%)
Feb 15, 2011	58.90	58.90	58.15	58.65	1,958,903	-0.38(-0.65%)
Feb 14, 2011	59.28	59.43	58.79	59.03	1,063,984	-0.31(-0.52%)
Feb 11, 2011	59.25	59.48	59.13	59.34	970,101	-0.27(-0.46%)
Feb 10, 2011	59.24	59.61	58.75	59.61	1,317,467	+0.39(+0.66%)
Feb 09, 2011	59.19	59.28	58.84	59.22	1,037,332	+0.04(+0.06%)
Feb 08, 2011	58.87	59.20	58.74	59.19	1,489,987	+0.42(+0.71%)
Feb 07, 2011	58.56	58.91	58.40	58.77	1,486,850	+0.39(+0.67%)
Feb 04, 2011	58.26	58.67	58.00	58.38	1,407,061	+0.06(+0.11%)
Feb 03, 2011	57.75	58.47	57.60	58.32	2,601,732	+0.46(+0.79%)
Feb 02, 2011	57.39	58.13	57.27	57.86	1,377,367	+0.26(+0.44%)

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