Date	Open	High	Low	Close	Volume	Change (%)
May 24, 2011	53.98	54.39	53.98	54.13	869,049	+0.32(+0.60%)
May 23, 2011	54.06	54.23	53.61	53.81	537,822	-0.63(-1.16%)
May 20, 2011	53.98	54.83	53.69	54.44	1,007,090	+0.41(+0.75%)
May 19, 2011	53.53	54.06	53.27	54.04	1,146,564	+0.64(+1.19%)
May 18, 2011	53.64	53.77	53.32	53.40	1,026,536	-0.27(-0.51%)
May 17, 2011	52.63	53.95	52.48	53.67	777,702	+1.04(+1.98%)
May 16, 2011	52.79	52.83	52.49	52.63	375,121	-0.15(-0.29%)
May 13, 2011	53.12	53.21	52.71	52.78	379,402	-0.30(-0.57%)
May 12, 2011	52.29	53.18	52.22	53.09	660,097	+0.80(+1.53%)
May 11, 2011	52.50	52.62	52.11	52.29	342,009	-0.15(-0.29%)
May 10, 2011	52.09	52.53	52.05	52.44	394,480	+0.51(+0.98%)
May 09, 2011	51.56	51.97	51.36	51.93	517,640	+0.43(+0.84%)
May 06, 2011	51.93	52.34	51.42	51.50	609,760	+0.10(+0.20%)
May 05, 2011	51.96	52.04	51.31	51.40	740,203	-0.79(-1.51%)
May 04, 2011	52.32	52.73	52.07	52.18	501,315	-0.06(-0.12%)
May 03, 2011	52.23	52.27	51.95	52.25	490,166	-0.08(-0.16%)
May 02, 2011	52.30	52.37	52.27	52.33	413,186	+0.11(+0.21%)
Apr 29, 2011	52.11	52.49	51.86	52.22	727,143	+0.06(+0.12%)
Apr 28, 2011	51.98	52.21	51.75	52.16	580,647	+0.00(+0.00%)
Apr 27, 2011	51.79	52.17	51.67	52.16	674,243	+0.45(+0.87%)
Apr 26, 2011	50.85	51.80	50.85	51.70	794,999	+0.95(+1.86%)
Apr 25, 2011	51.04	51.16	50.67	50.76	968,684	-0.43(-0.84%)
Apr 21, 2011	51.70	51.82	50.98	51.19	702,609	-0.43(-0.84%)
Apr 20, 2011	51.33	51.68	51.33	51.62	806,853	+0.67(+1.31%)
Apr 19, 2011	51.26	51.32	50.71	50.95	1,093,158	-0.31(-0.61%)
Apr 18, 2011	51.48	51.52	51.05	51.27	836,695	-0.52(-1.01%)
Apr 15, 2011	51.86	51.98	51.63	51.79	918,418	+0.02(+0.04%)
Apr 14, 2011	51.57	51.80	51.34	51.77	907,188	+0.06(+0.12%)
Apr 13, 2011	51.40	51.79	51.29	51.70	756,777	+0.35(+0.68%)
Apr 12, 2011	50.67	51.50	50.64	51.36	728,914	+0.56(+1.10%)
Apr 11, 2011	50.83	51.35	50.64	50.80	591,520	-0.03(-0.05%)
Apr 08, 2011	51.09	51.09	50.72	50.83	672,827	-0.01(-0.01%)
Apr 07, 2011	50.98	51.18	50.74	50.83	556,149	-0.23(-0.45%)
Apr 06, 2011	50.95	51.15	50.78	51.06	660,752	+0.22(+0.42%)
Apr 05, 2011	50.74	51.20	50.74	50.85	835,272	-0.02(-0.04%)
Apr 04, 2011	50.41	50.87	50.31	50.87	921,972	+0.48(+0.95%)
Apr 01, 2011	49.83	50.57	49.79	50.39	803,025	+0.73(+1.47%)
Mar 31, 2011	49.60	49.97	49.54	49.66	1,579,505	+0.09(+0.18%)
Mar 30, 2011	50.21	50.37	49.40	49.57	2,092,905	-0.38(-0.77%)
Mar 29, 2011	50.33	50.49	49.85	49.95	1,694,982	-0.42(-0.83%)
Mar 28, 2011	50.47	50.87	50.36	50.37	919,340	-0.03(-0.06%)
Mar 25, 2011	50.10	50.62	50.10	50.40	884,094	+0.45(+0.89%)
Mar 24, 2011	50.16	50.36	49.89	49.95	1,762,877	-0.08(-0.17%)
Mar 23, 2011	49.81	50.15	49.62	50.03	824,248	+0.15(+0.29%)
Mar 22, 2011	50.28	50.40	49.67	49.89	794,282	-0.34(-0.68%)
Mar 21, 2011	50.11	50.38	50.03	50.23	1,376,302	+1.24(+2.53%)
Mar 18, 2011	48.69	49.12	48.54	48.99	1,004,391	+0.90(+1.87%)
Mar 17, 2011	48.71	48.83	47.92	48.09	771,659	-0.12(-0.25%)
Mar 16, 2011	48.39	48.72	47.92	48.21	681,764	-0.19(-0.40%)
Mar 15, 2011	48.33	48.64	48.23	48.41	758,444	-0.42(-0.87%)
Mar 14, 2011	49.32	49.46	48.75	48.83	905,477	-0.83(-1.68%)
Mar 11, 2011	48.98	50.14	48.85	49.67	1,151,969	+0.82(+1.68%)
Mar 10, 2011	48.97	49.10	48.77	48.85	899,883	-0.40(-0.82%)
Mar 09, 2011	48.80	49.35	48.80	49.25	768,799	+0.29(+0.60%)
Mar 08, 2011	47.75	49.13	47.75	48.96	832,855	+0.61(+1.25%)
Mar 07, 2011	48.56	48.69	48.02	48.35	633,879	-0.21(-0.43%)
Mar 04, 2011	48.43	48.66	48.26	48.56	846,675	+0.08(+0.16%)
Mar 03, 2011	47.75	48.76	47.75	48.48	1,523,545	+1.04(+2.20%)
Mar 02, 2011	47.22	47.57	46.98	47.44	528,735	+0.26(+0.56%)

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