Date	Open	High	Low	Close	Volume	Change (%)
Feb 28, 2011	58.02	58.19	57.94	58.19	2,000,459	+0.23(+0.39%)
Feb 25, 2011	57.86	57.99	57.79	57.96	3,309,905	+0.25(+0.43%)
Feb 24, 2011	57.78	57.85	57.68	57.72	1,726,561	-0.00(-0.00%)
Feb 23, 2011	57.76	57.88	57.56	57.72	2,091,587	+0.06(+0.10%)
Feb 22, 2011	57.98	58.02	57.65	57.66	2,270,317	-0.44(-0.76%)
Feb 18, 2011	58.02	58.11	57.99	58.11	894,429	+0.20(+0.35%)
Feb 17, 2011	57.89	57.99	57.89	57.91	1,396,277	+0.01(+0.01%)
Feb 16, 2011	57.89	57.98	57.85	57.90	1,392,518	+0.09(+0.16%)
Feb 15, 2011	57.76	57.89	57.76	57.81	1,039,177	-0.06(-0.10%)
Feb 14, 2011	57.81	57.89	57.78	57.86	1,042,748	+0.10(+0.17%)
Feb 11, 2011	57.65	57.76	57.56	57.76	1,654,074	+0.13(+0.22%)
Feb 10, 2011	57.55	57.76	57.53	57.64	1,453,443	+0.07(+0.12%)
Feb 09, 2011	57.92	57.94	57.55	57.56	3,014,859	-0.36(-0.62%)
Feb 08, 2011	57.98	58.04	57.84	57.92	4,436,687	-0.11(-0.20%)
Feb 07, 2011	57.88	58.04	57.79	58.04	3,528,060	+0.19(+0.32%)
Feb 04, 2011	57.65	57.86	57.59	57.85	2,656,418	+0.21(+0.37%)
Feb 03, 2011	57.52	57.64	57.45	57.64	2,381,759	+0.10(+0.17%)
Feb 02, 2011	57.61	57.64	57.54	57.54	1,466,035	-0.01(-0.02%)
Feb 01, 2011	57.49	57.59	57.45	57.55	1,438,042	+0.13(+0.23%)
Jan 31, 2011	57.21	57.43	57.18	57.42	2,369,427	+0.37(+0.65%)
Jan 28, 2011	57.41	57.42	57.05	57.05	2,819,420	-0.31(-0.54%)
Jan 27, 2011	57.42	57.42	57.26	57.36	1,305,156	+0.03(+0.05%)
Jan 26, 2011	57.26	57.38	57.22	57.33	2,279,691	+0.17(+0.30%)
Jan 25, 2011	57.16	57.26	57.07	57.16	2,033,547	+0.00(+0.00%)
Jan 24, 2011	57.08	57.21	57.08	57.16	1,111,129	+0.13(+0.22%)
Jan 21, 2011	56.99	57.11	56.95	57.04	1,948,789	+0.10(+0.17%)
Jan 20, 2011	56.94	56.95	56.72	56.94	1,782,217	+0.01(+0.02%)
Jan 19, 2011	56.98	57.02	56.84	56.92	2,435,472	-0.09(-0.15%)
Jan 18, 2011	57.01	57.07	56.91	57.01	1,196,063	+0.03(+0.05%)
Jan 14, 2011	56.87	56.98	56.80	56.98	1,232,732	+0.18(+0.32%)
Jan 13, 2011	56.84	56.91	56.80	56.80	1,220,495	-0.06(-0.10%)
Jan 12, 2011	56.94	56.94	56.78	56.85	1,796,065	+0.01(+0.02%)
Jan 11, 2011	56.80	56.85	56.72	56.84	1,582,390	+0.17(+0.30%)
Jan 10, 2011	56.68	56.72	56.57	56.67	1,548,893	-0.06(-0.10%)
Jan 07, 2011	56.92	56.98	56.65	56.72	1,573,136	-0.28(-0.50%)
Jan 06, 2011	57.01	57.01	56.78	57.01	2,489,675	+0.03(+0.05%)
Jan 05, 2011	56.65	56.98	56.63	56.98	3,952,736	+0.27(+0.48%)
Jan 04, 2011	56.67	56.75	56.51	56.71	2,540,122	+0.17(+0.30%)
Jan 03, 2011	56.54	56.65	56.30	56.54	2,864,233	+0.23(+0.40%)
Dec 31, 2010	56.27	56.37	56.16	56.31	695,675	+0.10(+0.18%)
Dec 30, 2010	56.13	56.23	56.11	56.21	1,049,500	+0.01(+0.03%)
Dec 29, 2010	56.14	56.23	56.04	56.20	2,132,099	-0.43(-0.76%)
Dec 28, 2010	56.87	56.89	56.63	56.63	1,422,779	-0.20(-0.35%)
Dec 27, 2010	56.67	56.87	56.66	56.82	1,330,900	+0.10(+0.17%)
Dec 23, 2010	56.57	56.77	56.52	56.73	993,982	+0.25(+0.45%)
Dec 22, 2010	56.56	56.59	56.47	56.47	1,602,373	-0.08(-0.15%)
Dec 21, 2010	56.57	56.63	56.49	56.56	1,785,847	+0.07(+0.12%)
Dec 20, 2010	56.40	56.54	56.32	56.49	1,671,684	+0.10(+0.17%)
Dec 17, 2010	56.16	56.39	56.09	56.39	1,618,001	+0.29(+0.53%)
Dec 16, 2010	55.87	56.14	55.86	56.09	984,862	+0.20(+0.35%)
Dec 15, 2010	56.15	56.18	55.87	55.90	1,284,371	-0.28(-0.50%)
Dec 14, 2010	56.05	56.18	55.94	56.18	1,751,674	+0.28(+0.50%)
Dec 13, 2010	56.16	56.22	55.90	55.90	2,363,464	-0.20(-0.35%)
Dec 10, 2010	56.28	56.30	56.09	56.09	1,855,604	-0.08(-0.15%)
Dec 09, 2010	56.38	56.38	56.18	56.18	1,903,442	-0.24(-0.42%)
Dec 08, 2010	56.40	56.42	56.19	56.42	2,969,742	+0.11(+0.20%)
Dec 07, 2010	56.43	56.43	56.25	56.31	1,759,855	+0.19(+0.33%)
Dec 06, 2010	56.15	56.19	56.02	56.12	2,360,291	-0.10(-0.18%)
Dec 03, 2010	55.81	56.22	55.81	56.22	3,284,774	+0.28(+0.50%)
Dec 02, 2010	55.98	56.04	55.83	55.94	1,887,300	+0.00(+0.00%)

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