Date	Open	High	Low	Close	Volume	Change (%)
May 24, 2011	50.80	50.81	50.10	50.11	556,884	-0.44(-0.87%)
May 23, 2011	50.98	50.98	50.51	50.55	103,806	-1.06(-2.05%)
May 20, 2011	51.72	51.87	51.32	51.61	122,148	-0.11(-0.20%)
May 19, 2011	52.04	52.04	51.26	51.71	228,191	-0.44(-0.84%)
May 18, 2011	51.24	52.27	51.24	52.15	57,193	+0.93(+1.82%)
May 17, 2011	51.58	51.62	50.72	51.22	427,582	-0.64(-1.24%)
May 16, 2011	52.40	52.94	51.76	51.86	278,619	-0.74(-1.41%)
May 13, 2011	53.18	53.34	52.57	52.60	49,469	-0.65(-1.22%)
May 12, 2011	52.34	53.46	52.28	53.25	129,336	+0.69(+1.31%)
May 11, 2011	53.09	53.21	52.26	52.57	75,858	-0.39(-0.73%)
May 10, 2011	52.81	53.12	52.72	52.95	55,578	+0.26(+0.48%)
May 09, 2011	52.97	52.97	52.38	52.70	195,701	-0.22(-0.42%)
May 06, 2011	53.15	53.47	52.70	52.92	107,018	+0.41(+0.79%)
May 05, 2011	52.10	53.01	52.02	52.50	97,774	+0.14(+0.27%)
May 04, 2011	52.58	52.80	51.74	52.36	300,765	-0.02(-0.03%)
May 03, 2011	52.79	52.91	52.02	52.38	131,378	-0.65(-1.23%)
May 02, 2011	53.12	53.69	52.92	53.03	86,566	-0.48(-0.90%)
Apr 29, 2011	53.24	53.59	53.24	53.52	48,443	+0.18(+0.35%)
Apr 28, 2011	53.46	53.63	52.98	53.33	51,597	-0.27(-0.51%)
Apr 27, 2011	53.27	53.69	53.01	53.60	87,381	-0.04(-0.07%)
Apr 26, 2011	52.83	53.73	52.83	53.64	106,983	+0.86(+1.63%)
Apr 25, 2011	52.98	52.98	52.58	52.78	199,643	+0.04(+0.07%)
Apr 21, 2011	53.11	53.11	52.49	52.74	77,530	+0.05(+0.10%)
Apr 20, 2011	51.99	52.74	51.96	52.69	317,532	+2.14(+4.23%)
Apr 19, 2011	50.28	50.60	50.16	50.55	91,752	+0.21(+0.42%)
Apr 18, 2011	50.63	50.64	49.97	50.34	133,538	-0.92(-1.79%)
Apr 15, 2011	50.85	51.42	50.58	51.25	211,458	+0.26(+0.52%)
Apr 14, 2011	50.50	51.00	50.22	50.99	127,716	+0.08(+0.16%)
Apr 13, 2011	51.10	51.25	50.61	50.91	482,761	+0.12(+0.24%)
Apr 12, 2011	51.53	51.53	50.51	50.79	262,224	-1.10(-2.12%)
Apr 11, 2011	52.33	52.40	51.70	51.89	140,523	-0.44(-0.84%)
Apr 08, 2011	53.02	53.15	52.05	52.33	109,502	-0.44(-0.83%)
Apr 07, 2011	52.98	52.98	52.21	52.77	895,345	-0.18(-0.33%)
Apr 06, 2011	52.67	53.02	52.47	52.94	101,795	+0.80(+1.54%)
Apr 05, 2011	51.87	52.57	51.81	52.14	307,753	+1.14(+2.24%)
Apr 04, 2011	51.65	51.65	50.71	51.00	254,158	-0.46(-0.89%)
Apr 01, 2011	52.33	52.33	51.29	51.46	210,169	-0.57(-1.10%)
Mar 31, 2011	52.43	52.58	51.88	52.03	69,440	-0.49(-0.94%)
Mar 30, 2011	52.98	52.98	52.10	52.52	90,273	+0.06(+0.12%)
Mar 29, 2011	51.92	52.46	51.46	52.46	239,977	+0.52(+1.00%)
Mar 28, 2011	52.26	52.40	51.91	51.94	482,961	+0.01(+0.02%)
Mar 25, 2011	52.21	52.46	51.87	51.93	412,750	-0.18(-0.35%)
Mar 24, 2011	51.35	52.23	51.24	52.12	342,610	+1.24(+2.44%)
Mar 23, 2011	50.21	50.96	49.89	50.88	627,657	+0.48(+0.96%)
Mar 22, 2011	50.85	50.85	50.31	50.39	261,070	-0.48(-0.95%)
Mar 21, 2011	51.04	51.16	50.56	50.88	285,531	+0.90(+1.80%)
Mar 18, 2011	50.54	50.58	49.77	49.98	480,916	+0.21(+0.42%)
Mar 17, 2011	50.10	50.36	49.59	49.77	1,715,224	+0.59(+1.20%)
Mar 16, 2011	49.96	50.80	48.81	49.18	2,549,469	-1.06(-2.10%)
Mar 15, 2011	49.29	50.58	48.71	50.23	593,272	-0.67(-1.31%)
Mar 14, 2011	50.78	51.53	50.56	50.90	1,525,223	-0.11(-0.22%)
Mar 11, 2011	50.11	51.08	50.11	51.02	237,206	+0.57(+1.13%)
Mar 10, 2011	51.00	51.21	50.40	50.44	668,154	-1.31(-2.53%)
Mar 09, 2011	53.14	53.14	51.69	51.76	694,808	-1.66(-3.10%)
Mar 08, 2011	53.30	53.87	52.81	53.41	696,424	+0.05(+0.10%)
Mar 07, 2011	55.06	55.06	52.75	53.36	328,298	-1.51(-2.74%)
Mar 04, 2011	55.25	55.27	54.45	54.86	1,831,667	-0.46(-0.83%)
Mar 03, 2011	54.83	55.56	54.83	55.32	224,163	+1.05(+1.93%)
Mar 02, 2011	53.55	54.98	53.55	54.27	1,485,238	+0.68(+1.27%)

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