Date	Open	High	Low	Close	Volume	Change (%)
May 24, 2011	59.17	59.27	58.78	58.80	396,859	+0.01(+0.01%)
May 23, 2011	58.84	59.07	58.63	58.80	459,387	-1.11(-1.85%)
May 20, 2011	59.88	60.18	59.51	59.91	394,703	-0.39(-0.64%)
May 19, 2011	60.17	60.40	59.75	60.30	525,350	+0.56(+0.94%)
May 18, 2011	59.27	59.87	59.18	59.73	612,433	-0.01(-0.01%)
May 17, 2011	59.54	60.12	59.37	59.74	735,323	-0.60(-1.00%)
May 16, 2011	60.78	60.89	60.27	60.35	541,908	-0.11(-0.18%)
May 13, 2011	60.56	60.66	60.08	60.45	524,257	+0.02(+0.04%)
May 12, 2011	59.87	60.55	59.63	60.43	660,148	+0.08(+0.13%)
May 11, 2011	60.87	61.00	60.02	60.35	769,944	+0.14(+0.24%)
May 10, 2011	59.91	60.25	59.76	60.21	642,861	+0.53(+0.89%)
May 09, 2011	59.49	59.73	59.19	59.68	591,308	+0.55(+0.93%)
May 06, 2011	59.31	59.81	58.84	59.13	978,456	+0.98(+1.68%)
May 05, 2011	58.34	58.73	58.13	58.15	1,209,962	+0.22(+0.39%)
May 04, 2011	58.19	58.20	57.59	57.93	745,835	-0.30(-0.51%)
May 03, 2011	58.16	58.49	57.93	58.22	701,161	-0.64(-1.09%)
May 02, 2011	58.85	58.89	58.81	58.86	556,937	+0.29(+0.49%)
Apr 29, 2011	58.46	58.68	58.42	58.57	376,655	+0.12(+0.21%)
Apr 28, 2011	57.96	58.56	57.96	58.45	475,600	+0.03(+0.05%)
Apr 27, 2011	57.75	58.54	57.65	58.42	863,210	+1.36(+2.38%)
Apr 26, 2011	57.00	57.29	56.80	57.06	554,420	+0.06(+0.11%)
Apr 25, 2011	56.98	57.11	56.88	57.00	215,990	-0.17(-0.29%)
Apr 21, 2011	57.39	57.48	57.06	57.16	377,843	+0.29(+0.51%)
Apr 20, 2011	57.29	57.40	56.85	56.88	418,782	+0.34(+0.60%)
Apr 19, 2011	56.31	56.66	56.26	56.54	382,423	+0.99(+1.79%)
Apr 18, 2011	55.52	55.72	55.06	55.54	768,681	-1.20(-2.12%)
Apr 15, 2011	56.44	56.95	56.34	56.75	421,589	+0.40(+0.72%)
Apr 14, 2011	56.24	56.49	56.03	56.34	585,179	+0.32(+0.58%)
Apr 13, 2011	56.26	56.44	55.90	56.02	468,556	+0.53(+0.95%)
Apr 12, 2011	56.00	56.03	55.40	55.49	1,001,710	-0.63(-1.13%)
Apr 11, 2011	56.36	56.47	55.98	56.13	350,153	-0.38(-0.68%)
Apr 08, 2011	56.70	56.70	56.34	56.51	384,182	+0.08(+0.14%)
Apr 07, 2011	56.31	56.84	56.17	56.43	452,461	-0.04(-0.06%)
Apr 06, 2011	56.44	56.75	56.23	56.47	550,354	+0.19(+0.35%)
Apr 05, 2011	55.88	56.36	55.76	56.27	620,322	+1.02(+1.85%)
Apr 04, 2011	55.58	55.62	55.18	55.25	438,640	-0.10(-0.18%)
Apr 01, 2011	55.19	55.64	55.03	55.35	526,508	+0.48(+0.88%)
Mar 31, 2011	55.04	55.28	54.78	54.87	531,502	+0.37(+0.69%)
Mar 30, 2011	54.28	54.62	54.00	54.49	734,282	+0.73(+1.35%)
Mar 29, 2011	53.28	53.85	53.21	53.77	636,838	+0.06(+0.12%)
Mar 28, 2011	53.79	53.94	53.64	53.70	1,000,602	-0.29(-0.53%)
Mar 25, 2011	53.73	54.23	53.67	53.99	529,001	+0.22(+0.40%)
Mar 24, 2011	53.56	54.06	53.47	53.77	554,256	+0.12(+0.23%)
Mar 23, 2011	53.27	53.89	53.20	53.65	1,028,034	-0.12(-0.23%)
Mar 22, 2011	53.76	53.94	53.61	53.77	1,045,479	-0.24(-0.45%)
Mar 21, 2011	53.88	54.15	53.82	54.02	784,184	+0.84(+1.57%)
Mar 18, 2011	53.46	53.49	53.01	53.18	705,538	+0.47(+0.89%)
Mar 17, 2011	52.69	53.14	52.50	52.72	762,848	+0.98(+1.89%)
Mar 16, 2011	52.86	52.97	51.29	51.74	2,181,650	-1.41(-2.65%)
Mar 15, 2011	52.82	53.27	52.82	53.15	1,520,975	-1.66(-3.02%)
Mar 14, 2011	54.33	54.84	54.31	54.80	921,831	+0.03(+0.05%)
Mar 11, 2011	54.25	54.99	54.25	54.77	653,176	-0.21(-0.38%)
Mar 10, 2011	54.83	55.22	54.73	54.98	981,343	-1.07(-1.90%)
Mar 09, 2011	55.86	56.08	55.67	56.05	520,672	-0.04(-0.08%)
Mar 08, 2011	55.35	56.23	55.16	56.09	792,569	+0.28(+0.50%)
Mar 07, 2011	55.98	56.20	55.63	55.81	1,086,804	-0.45(-0.79%)
Mar 04, 2011	56.11	56.31	55.67	56.26	805,479	+0.12(+0.22%)
Mar 03, 2011	55.94	56.21	55.59	56.13	796,631	+0.60(+1.08%)
Mar 02, 2011	55.83	56.11	55.43	55.54	552,702	-0.24(-0.43%)

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