Date	Open	High	Low	Close	Volume	Change (%)
Apr 30, 2012	82.17	82.17	82.07	82.07	1,188,412	-0.03(-0.04%)
Apr 27, 2012	82.08	82.13	82.04	82.10	833,767	-0.01(-0.01%)
Apr 26, 2012	82.10	82.14	82.03	82.11	1,376,725	+0.13(+0.15%)
Apr 25, 2012	81.93	82.00	81.81	81.98	1,323,713	+0.04(+0.05%)
Apr 24, 2012	82.02	82.06	81.93	81.95	845,566	-0.12(-0.14%)
Apr 23, 2012	82.18	82.18	82.02	82.07	1,060,603	+0.08(+0.10%)
Apr 20, 2012	81.98	82.01	81.90	81.98	2,062,049	+0.01(+0.02%)
Apr 19, 2012	82.00	82.06	81.97	81.97	833,712	-0.06(-0.07%)
Apr 18, 2012	81.95	82.03	81.89	82.03	1,191,581	+0.10(+0.13%)
Apr 17, 2012	81.85	81.93	81.81	81.93	993,881	+0.01(+0.02%)
Apr 16, 2012	81.81	81.99	81.81	81.91	1,510,869	+0.01(+0.02%)
Apr 13, 2012	81.85	81.91	81.78	81.90	1,488,506	+0.25(+0.31%)
Apr 12, 2012	81.70	81.73	81.63	81.64	681,704	-0.08(-0.10%)
Apr 11, 2012	81.67	81.72	81.55	81.72	1,621,224	+0.01(+0.01%)
Apr 10, 2012	81.77	81.88	81.68	81.72	2,552,043	+0.01(+0.01%)
Apr 09, 2012	81.76	81.77	81.66	81.71	775,627	+0.36(+0.44%)
Apr 05, 2012	81.33	81.35	81.19	81.35	1,009,339	+0.19(+0.23%)
Apr 04, 2012	81.15	81.19	81.04	81.17	1,532,366	+0.17(+0.21%)
Apr 03, 2012	81.41	81.47	80.94	81.00	1,033,595	-0.35(-0.43%)
Apr 02, 2012	81.54	81.54	81.23	81.35	3,231,949	+0.01(+0.01%)
Mar 30, 2012	81.53	81.53	81.22	81.34	1,514,279	-0.13(-0.15%)
Mar 29, 2012	81.41	81.49	81.33	81.46	1,631,490	+0.22(+0.27%)
Mar 28, 2012	81.25	81.36	81.21	81.24	1,097,547	-0.01(-0.02%)
Mar 27, 2012	81.22	81.30	81.16	81.26	3,442,776	+0.09(+0.11%)
Mar 26, 2012	81.19	81.21	81.03	81.17	1,171,983	-0.06(-0.07%)
Mar 23, 2012	81.06	81.23	81.03	81.23	1,024,210	+0.19(+0.23%)
Mar 22, 2012	80.97	81.06	80.97	81.04	900,497	+0.07(+0.09%)
Mar 21, 2012	80.88	81.00	80.80	80.97	797,763	+0.19(+0.24%)
Mar 20, 2012	80.65	80.77	80.59	80.77	1,296,967	+0.12(+0.15%)
Mar 19, 2012	80.93	80.93	80.63	80.66	1,548,781	-0.26(-0.32%)
Mar 16, 2012	80.82	80.94	80.75	80.91	1,261,254	+0.01(+0.01%)
Mar 15, 2012	80.90	81.05	80.89	80.91	1,081,024	-0.04(-0.05%)
Mar 14, 2012	81.27	81.33	80.89	80.94	1,512,252	-0.44(-0.55%)
Mar 13, 2012	81.61	81.62	81.37	81.39	1,951,105	-0.27(-0.34%)
Mar 12, 2012	81.74	81.78	81.63	81.66	1,481,013	+0.07(+0.09%)
Mar 09, 2012	81.62	81.62	81.54	81.59	960,094	-0.01(-0.02%)
Mar 08, 2012	81.78	81.80	81.58	81.60	1,311,760	-0.19(-0.23%)
Mar 07, 2012	81.85	81.86	81.76	81.79	1,129,089	-0.07(-0.09%)
Mar 06, 2012	81.85	81.91	81.78	81.86	1,426,763	+0.16(+0.20%)
Mar 05, 2012	81.80	81.83	81.68	81.70	1,483,050	-0.12(-0.14%)
Mar 02, 2012	81.68	81.82	81.67	81.82	1,166,631	+0.18(+0.22%)
Mar 01, 2012	81.62	81.68	81.51	81.64	1,678,309	-0.17(-0.20%)
Feb 29, 2012	81.94	81.94	81.69	81.81	2,699,169	-0.08(-0.10%)
Feb 28, 2012	82.00	82.02	81.84	81.89	1,076,693	-0.06(-0.07%)
Feb 27, 2012	81.86	81.95	81.81	81.95	963,964	+0.26(+0.32%)
Feb 24, 2012	81.72	81.83	81.67	81.69	1,847,060	+0.02(+0.03%)
Feb 23, 2012	81.55	81.69	81.52	81.67	1,067,347	+0.07(+0.08%)
Feb 22, 2012	81.50	81.60	81.45	81.60	1,320,246	+0.23(+0.28%)
Feb 21, 2012	81.44	81.48	81.36	81.37	1,413,245	-0.13(-0.15%)
Feb 17, 2012	81.48	81.52	81.39	81.50	1,155,823	-0.10(-0.13%)
Feb 16, 2012	81.61	81.67	81.52	81.60	1,243,870	-0.01(-0.02%)
Feb 15, 2012	81.72	81.74	81.61	81.61	1,185,364	-0.03(-0.04%)
Feb 14, 2012	81.66	81.78	81.63	81.64	1,186,307	+0.07(+0.08%)
Feb 13, 2012	81.60	81.65	81.53	81.58	1,238,578	+0.03(+0.04%)
Feb 10, 2012	81.50	81.64	81.50	81.55	967,931	+0.11(+0.14%)
Feb 09, 2012	81.52	81.55	81.38	81.44	1,446,496	-0.13(-0.16%)
Feb 08, 2012	81.59	81.65	81.49	81.57	2,003,293	-0.07(-0.08%)
Feb 07, 2012	81.58	81.67	81.50	81.64	1,308,621	-0.08(-0.10%)
Feb 06, 2012	81.63	81.72	81.54	81.72	2,510,669	+0.06(+0.07%)
Feb 03, 2012	81.47	81.69	81.41	81.66	1,546,734	-0.04(-0.05%)
Feb 02, 2012	81.65	81.75	81.59	81.69	1,600,531	+0.02(+0.03%)

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