Date	Open	High	Low	Close	Volume	Change (%)
May 24, 2011	76.16	76.26	76.13	76.22	814,156	+0.03(+0.04%)
May 23, 2011	76.27	76.30	76.19	76.20	1,129,915	+0.06(+0.08%)
May 20, 2011	76.10	76.17	76.08	76.13	1,318,867	+0.07(+0.09%)
May 19, 2011	75.91	76.10	75.88	76.06	889,254	-0.06(-0.07%)
May 18, 2011	76.21	76.25	76.07	76.12	869,303	-0.12(-0.16%)
May 17, 2011	76.22	76.29	76.18	76.24	960,453	+0.09(+0.11%)
May 16, 2011	76.00	76.19	75.98	76.15	952,825	+0.16(+0.22%)
May 13, 2011	75.95	76.13	75.93	75.99	439,625	+0.12(+0.16%)
May 12, 2011	75.94	76.00	75.80	75.87	1,077,981	-0.11(-0.15%)
May 11, 2011	75.78	76.00	75.78	75.98	757,318	+0.14(+0.18%)
May 10, 2011	75.89	75.95	75.81	75.85	753,334	-0.14(-0.18%)
May 09, 2011	75.92	76.01	75.92	75.98	705,733	+0.09(+0.11%)
May 06, 2011	75.83	76.02	75.73	75.90	1,434,873	-0.01(-0.01%)
May 05, 2011	75.76	75.93	75.76	75.90	1,125,139	+0.17(+0.23%)
May 04, 2011	75.58	75.74	75.58	75.73	926,332	+0.14(+0.19%)
May 03, 2011	75.61	75.67	75.53	75.59	683,260	+0.02(+0.03%)
May 02, 2011	75.58	75.60	75.56	75.57	862,158	+0.04(+0.05%)
Apr 29, 2011	75.37	75.55	75.37	75.53	703,557	+0.06(+0.08%)
Apr 28, 2011	75.40	75.48	75.32	75.47	807,777	+0.18(+0.24%)
Apr 27, 2011	75.22	75.31	75.11	75.29	667,049	-0.06(-0.08%)
Apr 26, 2011	75.14	75.35	75.14	75.35	802,989	+0.28(+0.37%)
Apr 25, 2011	75.01	75.15	74.99	75.08	763,390	+0.04(+0.06%)
Apr 21, 2011	74.99	75.08	74.97	75.03	631,061	+0.05(+0.07%)
Apr 20, 2011	75.03	75.08	74.95	74.98	547,979	-0.11(-0.14%)
Apr 19, 2011	75.07	75.12	75.03	75.09	663,529	+0.15(+0.20%)
Apr 18, 2011	74.84	75.03	74.80	74.94	1,015,363	+0.13(+0.17%)
Apr 15, 2011	74.71	74.86	74.71	74.81	551,183	+0.27(+0.36%)
Apr 14, 2011	74.63	74.68	74.54	74.54	921,890	-0.07(-0.10%)
Apr 13, 2011	74.42	74.66	74.42	74.61	749,087	+0.08(+0.10%)
Apr 12, 2011	74.37	74.58	74.37	74.54	793,476	+0.28(+0.38%)
Apr 11, 2011	74.21	74.32	74.18	74.25	545,390	+0.07(+0.10%)
Apr 08, 2011	74.22	74.27	74.16	74.18	553,723	-0.14(-0.19%)
Apr 07, 2011	74.27	74.44	74.25	74.32	960,817	+0.11(+0.15%)
Apr 06, 2011	74.42	74.43	74.21	74.21	1,381,841	-0.22(-0.30%)
Apr 05, 2011	74.56	74.57	74.39	74.43	1,130,247	-0.16(-0.21%)
Apr 04, 2011	74.52	74.67	74.51	74.59	729,294	+0.12(+0.16%)
Apr 01, 2011	74.29	74.52	74.27	74.47	1,386,508	+0.10(+0.14%)
Mar 31, 2011	74.53	74.56	74.36	74.36	1,434,016	-0.08(-0.11%)
Mar 30, 2011	74.45	74.45	74.45	74.45	1,118,929	+0.13(+0.17%)
Mar 29, 2011	74.36	74.49	74.29	74.32	760,685	-0.09(-0.12%)
Mar 28, 2011	74.36	74.46	74.33	74.41	2,040,721	-0.04(-0.05%)
Mar 25, 2011	74.65	74.65	74.40	74.45	1,146,795	-0.06(-0.09%)
Mar 24, 2011	74.60	74.65	74.47	74.51	2,219,448	-0.21(-0.27%)
Mar 23, 2011	74.86	74.87	74.68	74.72	667,572	-0.04(-0.05%)
Mar 22, 2011	74.67	74.79	74.65	74.75	854,947	+0.01(+0.01%)
Mar 21, 2011	74.74	74.83	74.72	74.75	651,476	-0.18(-0.24%)
Mar 18, 2011	74.85	74.95	74.79	74.92	541,201	-0.03(-0.04%)
Mar 17, 2011	74.89	75.04	74.80	74.95	826,669	-0.18(-0.24%)
Mar 16, 2011	74.95	75.36	74.88	75.13	1,430,886	+0.34(+0.45%)
Mar 15, 2011	74.93	74.95	74.77	74.79	950,747	+0.03(+0.04%)
Mar 14, 2011	74.85	74.97	74.76	74.76	587,945	+0.04(+0.06%)
Mar 11, 2011	74.73	74.80	74.63	74.72	669,749	+0.01(+0.02%)
Mar 10, 2011	74.56	74.74	74.47	74.70	661,458	+0.26(+0.35%)
Mar 09, 2011	74.31	74.53	74.24	74.44	834,919	+0.18(+0.24%)
Mar 08, 2011	74.32	74.32	74.20	74.27	745,301	-0.06(-0.08%)
Mar 07, 2011	74.23	74.43	74.14	74.32	878,064	+0.04(+0.05%)
Mar 04, 2011	74.19	74.35	74.17	74.29	1,076,713	+0.20(+0.27%)
Mar 03, 2011	74.21	74.22	74.05	74.09	874,629	-0.26(-0.35%)
Mar 02, 2011	74.49	74.55	74.34	74.35	715,614	-0.12(-0.16%)

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