Date	Open	High	Low	Close	Volume	Change (%)
Mar 31, 2011	78.17	78.18	77.78	77.96	1,199,647	+0.03(+0.04%)
Mar 30, 2011	77.63	77.94	77.63	77.93	993,886	+0.27(+0.35%)
Mar 29, 2011	77.76	77.85	77.53	77.66	915,340	-0.16(-0.20%)
Mar 28, 2011	77.76	77.91	77.68	77.81	1,016,335	+0.04(+0.06%)
Mar 25, 2011	78.17	78.28	77.71	77.77	1,070,621	-0.36(-0.47%)
Mar 24, 2011	77.94	78.14	77.83	78.13	1,383,769	+0.07(+0.09%)
Mar 23, 2011	78.41	78.41	77.95	78.06	906,929	-0.13(-0.16%)
Mar 22, 2011	78.31	78.31	78.13	78.19	763,273	-0.19(-0.25%)
Mar 21, 2011	78.42	78.56	78.38	78.38	1,775,666	-0.34(-0.43%)
Mar 18, 2011	78.56	78.81	78.55	78.72	883,388	-0.06(-0.07%)
Mar 17, 2011	78.61	78.85	78.50	78.78	1,329,763	+0.16(+0.20%)
Mar 16, 2011	78.41	78.91	78.39	78.62	1,995,943	+0.56(+0.71%)
Mar 15, 2011	78.15	78.28	78.03	78.06	1,191,761	-0.02(-0.03%)
Mar 14, 2011	77.93	78.18	77.93	78.08	1,237,954	+0.11(+0.15%)
Mar 11, 2011	78.05	78.09	77.84	77.97	1,761,426	-0.13(-0.16%)
Mar 10, 2011	77.77	78.16	77.71	78.10	962,346	+0.44(+0.57%)
Mar 09, 2011	77.59	77.80	77.47	77.66	1,056,186	+0.11(+0.14%)
Mar 08, 2011	77.54	77.63	77.43	77.55	1,213,091	+0.05(+0.06%)
Mar 07, 2011	77.38	77.72	77.21	77.50	1,024,339	-0.06(-0.08%)
Mar 04, 2011	77.20	77.62	77.15	77.56	1,062,299	+0.51(+0.67%)
Mar 03, 2011	77.11	77.18	76.96	77.05	932,709	-0.21(-0.27%)
Mar 02, 2011	77.27	77.60	77.26	77.26	1,233,741	-0.23(-0.29%)
Mar 01, 2011	76.98	77.49	76.91	77.48	1,470,882	+0.45(+0.58%)
Feb 28, 2011	77.25	77.25	77.04	77.04	1,153,073	-0.21(-0.27%)
Feb 25, 2011	77.06	77.25	76.91	77.25	951,242	+0.26(+0.33%)
Feb 24, 2011	76.93	77.18	76.87	76.99	1,145,754	+0.28(+0.36%)
Feb 23, 2011	76.45	76.81	76.43	76.71	982,793	+0.28(+0.36%)
Feb 22, 2011	76.16	76.49	76.13	76.43	1,167,861	+0.60(+0.79%)
Feb 18, 2011	75.37	75.84	75.37	75.84	1,219,954	+0.39(+0.52%)
Feb 17, 2011	75.29	75.45	75.10	75.44	1,283,357	+0.28(+0.38%)
Feb 16, 2011	75.29	75.32	75.02	75.16	994,803	-0.11(-0.14%)
Feb 15, 2011	75.15	75.31	75.08	75.27	1,261,176	+0.09(+0.12%)
Feb 14, 2011	75.07	75.21	75.02	75.17	788,030	+0.06(+0.08%)
Feb 11, 2011	75.04	75.17	74.89	75.12	965,793	+0.38(+0.51%)
Feb 10, 2011	75.07	75.11	74.72	74.73	1,204,539	-0.46(-0.62%)
Feb 09, 2011	75.05	75.29	74.87	75.19	1,300,152	+0.21(+0.29%)
Feb 08, 2011	75.39	75.44	74.92	74.98	1,664,850	-0.39(-0.52%)
Feb 07, 2011	75.30	75.40	75.16	75.37	1,426,593	-0.01(-0.02%)
Feb 04, 2011	75.73	75.77	75.32	75.39	1,714,682	-0.43(-0.56%)
Feb 03, 2011	76.03	76.08	75.81	75.81	1,159,876	-0.40(-0.52%)
Feb 02, 2011	76.50	76.63	76.10	76.21	988,972	-0.21(-0.27%)
Feb 01, 2011	76.35	76.53	76.21	76.42	1,311,818	-0.07(-0.09%)
Jan 31, 2011	76.39	76.61	76.30	76.49	1,122,101	+0.02(+0.03%)
Jan 28, 2011	76.05	76.53	75.97	76.47	913,210	+0.29(+0.38%)
Jan 27, 2011	76.15	76.29	76.00	76.17	902,104	-0.05(-0.07%)
Jan 26, 2011	76.33	76.34	76.08	76.22	917,068	-0.13(-0.17%)
Jan 25, 2011	76.06	76.55	76.05	76.35	828,852	+0.30(+0.39%)
Jan 24, 2011	76.15	76.33	76.01	76.05	1,120,953	-0.05(-0.07%)
Jan 21, 2011	76.02	76.16	75.93	76.10	755,434	+0.14(+0.19%)
Jan 20, 2011	76.50	76.53	75.96	75.96	1,114,973	-0.73(-0.95%)
Jan 19, 2011	76.76	76.92	76.66	76.69	800,530	+0.03(+0.04%)
Jan 18, 2011	76.53	76.79	76.40	76.66	1,582,426	+0.01(+0.02%)
Jan 14, 2011	77.04	77.06	76.64	76.64	1,003,140	-0.33(-0.43%)
Jan 13, 2011	76.68	76.99	76.59	76.98	1,206,510	+0.23(+0.31%)
Jan 12, 2011	76.47	76.83	76.47	76.74	751,079	-0.02(-0.03%)
Jan 11, 2011	76.79	76.89	76.54	76.77	798,061	+0.03(+0.04%)
Jan 10, 2011	76.62	76.76	76.54	76.74	899,164	+0.22(+0.29%)
Jan 07, 2011	76.40	76.79	76.30	76.52	1,376,823	+0.24(+0.32%)
Jan 06, 2011	76.11	76.35	76.03	76.27	1,163,891	+0.22(+0.29%)
Jan 05, 2011	76.32	76.40	75.89	76.05	1,222,242	-0.29(-0.38%)
Jan 04, 2011	76.23	76.57	76.20	76.35	1,476,025	+0.19(+0.25%)

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