Date	Open	High	Low	Close	Volume	Change (%)
Apr 30, 2012	57.72	57.75	57.45	57.56	1,936,576	-0.25(-0.44%)
Apr 27, 2012	57.79	58.02	57.55	57.81	1,617,644	+0.21(+0.36%)
Apr 26, 2012	57.16	57.67	57.13	57.60	2,877,396	+0.38(+0.67%)
Apr 25, 2012	56.87	57.25	56.85	57.22	1,628,483	+1.03(+1.83%)
Apr 24, 2012	56.24	56.44	55.97	56.19	1,847,119	+0.00(+0.00%)
Apr 23, 2012	56.17	56.26	55.80	56.19	2,147,571	-0.55(-0.97%)
Apr 20, 2012	56.99	57.16	56.71	56.74	1,661,313	+0.04(+0.08%)
Apr 19, 2012	57.09	57.40	56.41	56.70	2,017,653	-0.44(-0.76%)
Apr 18, 2012	57.11	57.35	57.01	57.13	3,231,687	-0.10(-0.17%)
Apr 17, 2012	56.61	57.36	56.57	57.23	1,375,799	+0.94(+1.67%)
Apr 16, 2012	56.85	56.86	56.15	56.29	2,221,741	-0.24(-0.43%)
Apr 13, 2012	57.03	57.05	56.51	56.53	3,950,801	-0.65(-1.13%)
Apr 12, 2012	56.46	57.20	56.44	57.18	2,802,470	+0.81(+1.44%)
Apr 11, 2012	56.48	56.64	56.30	56.37	2,520,300	+0.40(+0.72%)
Apr 10, 2012	56.86	57.01	55.88	55.96	9,284,240	-0.99(-1.73%)
Apr 09, 2012	56.84	57.19	56.76	56.95	1,760,121	-0.62(-1.08%)
Apr 05, 2012	57.26	57.64	57.26	57.57	2,472,103	+0.13(+0.23%)
Apr 04, 2012	57.61	57.65	57.18	57.44	2,449,452	-0.61(-1.05%)
Apr 03, 2012	58.11	58.28	57.74	58.05	2,024,572	-0.09(-0.15%)
Apr 02, 2012	57.60	58.29	57.51	58.14	2,926,865	+0.51(+0.88%)
Mar 30, 2012	57.80	57.80	57.38	57.63	2,400,197	+0.12(+0.21%)
Mar 29, 2012	57.27	57.57	57.04	57.51	1,760,910	-0.03(-0.05%)
Mar 28, 2012	57.92	57.99	57.20	57.53	1,601,023	-0.34(-0.59%)
Mar 27, 2012	58.03	58.09	57.85	57.87	2,168,538	-0.08(-0.14%)
Mar 26, 2012	57.53	57.96	57.49	57.95	1,873,795	+0.81(+1.42%)
Mar 23, 2012	57.10	57.21	56.70	57.14	2,988,995	+0.13(+0.23%)
Mar 22, 2012	57.00	57.12	56.78	57.01	2,514,544	-0.37(-0.64%)
Mar 21, 2012	57.41	57.55	57.25	57.37	4,612,225	+0.02(+0.03%)
Mar 20, 2012	57.31	57.43	57.06	57.36	1,997,848	-0.24(-0.42%)
Mar 19, 2012	57.37	57.71	57.26	57.60	2,259,653	+0.27(+0.47%)
Mar 16, 2012	57.36	57.39	57.18	57.33	1,047,138	+0.05(+0.09%)
Mar 15, 2012	57.10	57.30	56.94	57.28	2,342,397	+0.28(+0.49%)
Mar 14, 2012	56.99	57.16	56.79	57.00	1,968,312	+0.02(+0.03%)
Mar 13, 2012	56.39	57.00	56.26	56.98	1,891,021	+0.96(+1.71%)
Mar 12, 2012	56.09	56.19	55.90	56.03	1,996,436	-0.02(-0.03%)
Mar 09, 2012	55.99	56.20	55.91	56.04	1,383,649	+0.17(+0.31%)
Mar 08, 2012	55.61	55.97	55.48	55.87	2,924,071	+0.58(+1.05%)
Mar 07, 2012	55.02	55.35	54.99	55.29	2,644,029	+0.43(+0.79%)
Mar 06, 2012	55.15	55.15	54.71	54.85	4,907,636	-0.82(-1.47%)
Mar 05, 2012	55.94	55.97	55.47	55.67	2,098,161	-0.36(-0.64%)
Mar 02, 2012	56.12	56.22	55.84	56.03	2,609,339	-0.10(-0.19%)
Mar 01, 2012	56.03	56.27	55.90	56.13	2,481,178	+0.33(+0.59%)
Feb 29, 2012	56.12	56.32	55.72	55.80	2,554,528	-0.25(-0.45%)
Feb 28, 2012	55.90	56.11	55.81	56.05	2,163,587	+0.21(+0.37%)
Feb 27, 2012	55.49	56.04	55.34	55.84	3,464,879	-0.02(-0.03%)
Feb 24, 2012	55.76	55.97	55.73	55.86	1,810,940	+0.19(+0.34%)
Feb 23, 2012	55.40	55.69	55.19	55.67	2,437,265	+0.27(+0.49%)
Feb 22, 2012	55.42	55.57	55.29	55.40	2,456,665	-0.06(-0.11%)
Feb 21, 2012	55.58	55.69	55.25	55.46	1,390,673	+0.05(+0.09%)
Feb 17, 2012	55.57	55.57	55.25	55.41	2,782,501	-0.01(-0.02%)
Feb 16, 2012	54.82	55.46	54.76	55.42	2,201,264	+0.63(+1.16%)
Feb 15, 2012	55.28	55.43	54.70	54.78	1,811,795	-0.30(-0.55%)
Feb 14, 2012	54.93	55.11	54.73	55.09	2,615,260	+0.01(+0.02%)
Feb 13, 2012	55.00	55.12	54.77	55.08	2,942,224	+0.40(+0.73%)
Feb 10, 2012	54.57	54.70	54.44	54.68	1,858,638	-0.35(-0.63%)
Feb 09, 2012	54.94	55.12	54.65	55.03	2,414,750	+0.23(+0.41%)
Feb 08, 2012	54.76	54.88	54.47	54.80	2,244,604	+0.10(+0.17%)
Feb 07, 2012	54.50	54.80	54.29	54.70	2,550,508	+0.11(+0.21%)
Feb 06, 2012	54.42	54.63	54.32	54.59	3,121,113	-0.03(-0.05%)
Feb 03, 2012	54.43	54.64	54.30	54.62	3,038,001	+0.74(+1.37%)
Feb 02, 2012	53.87	54.02	53.68	53.88	3,111,456	+0.10(+0.19%)

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