Date	Open	High	Low	Close	Volume	Change (%)
Apr 30, 2012	57.49	57.63	57.43	57.60	4,400,182	+0.17(+0.30%)
Apr 27, 2012	57.56	57.56	57.34	57.43	2,333,406	-0.09(-0.15%)
Apr 26, 2012	57.41	57.59	57.40	57.52	2,406,782	+0.06(+0.10%)
Apr 25, 2012	57.25	57.46	57.17	57.46	1,867,145	+0.43(+0.76%)
Apr 24, 2012	56.99	57.07	56.93	57.02	1,875,361	+0.10(+0.18%)
Apr 23, 2012	56.81	57.02	56.72	56.92	2,496,376	-0.04(-0.08%)
Apr 20, 2012	57.04	57.08	56.89	56.96	3,210,301	+0.12(+0.20%)
Apr 19, 2012	57.02	57.07	56.83	56.85	1,924,903	-0.16(-0.28%)
Apr 18, 2012	56.94	57.10	56.94	57.01	3,754,491	-0.01(-0.01%)
Apr 17, 2012	56.86	57.10	56.78	57.02	2,620,735	+0.28(+0.50%)
Apr 16, 2012	56.76	56.86	56.50	56.73	2,953,707	+0.09(+0.15%)
Apr 13, 2012	56.82	56.86	56.59	56.65	2,913,332	-0.19(-0.33%)
Apr 12, 2012	56.53	56.86	56.49	56.83	2,745,863	+0.41(+0.72%)
Apr 11, 2012	56.37	56.53	56.20	56.43	4,075,411	+0.33(+0.59%)
Apr 10, 2012	56.30	56.47	56.02	56.09	5,513,174	-0.20(-0.36%)
Apr 09, 2012	56.44	56.47	56.25	56.30	6,899,085	-0.20(-0.36%)
Apr 05, 2012	56.75	56.78	56.50	56.50	3,377,168	-0.28(-0.49%)
Apr 04, 2012	56.78	56.88	56.66	56.78	3,527,768	-0.07(-0.13%)
Apr 03, 2012	56.92	57.05	56.82	56.85	3,314,650	-0.01(-0.03%)
Apr 02, 2012	56.94	57.08	56.85	56.86	6,580,146	+0.13(+0.23%)
Mar 30, 2012	57.05	57.06	56.73	56.73	4,852,707	-0.19(-0.33%)
Mar 29, 2012	56.80	57.09	56.80	56.92	2,556,625	+0.00(+0.00%)
Mar 28, 2012	57.23	57.23	56.89	56.92	2,497,362	-0.33(-0.58%)
Mar 27, 2012	57.19	57.36	57.16	57.25	3,993,390	+0.06(+0.10%)
Mar 26, 2012	56.95	57.19	56.95	57.19	2,852,392	+0.40(+0.71%)
Mar 23, 2012	56.99	57.00	56.79	56.79	4,668,402	-0.19(-0.33%)
Mar 22, 2012	56.92	57.09	56.90	56.98	2,981,360	-0.03(-0.05%)
Mar 21, 2012	57.15	57.15	56.90	57.00	2,087,074	-0.09(-0.15%)
Mar 20, 2012	57.03	57.18	56.99	57.09	3,371,469	-0.09(-0.15%)
Mar 19, 2012	56.99	57.22	56.92	57.18	2,284,550	+0.16(+0.28%)
Mar 16, 2012	57.09	57.16	56.80	57.02	3,105,686	-0.07(-0.13%)
Mar 15, 2012	57.23	57.25	57.00	57.09	2,102,452	-0.17(-0.30%)
Mar 14, 2012	57.42	57.39	57.03	57.26	3,853,128	-0.16(-0.28%)
Mar 13, 2012	57.15	57.44	57.05	57.42	3,382,367	+0.46(+0.81%)
Mar 12, 2012	57.08	57.08	56.90	56.96	2,787,979	-0.09(-0.15%)
Mar 09, 2012	57.13	57.18	57.00	57.05	2,864,558	+0.00(+0.00%)
Mar 08, 2012	56.83	57.06	56.74	57.05	3,406,589	+0.46(+0.81%)
Mar 07, 2012	56.60	56.73	56.51	56.59	6,872,696	+0.10(+0.18%)
Mar 06, 2012	56.92	56.93	56.47	56.49	6,005,012	-0.66(-1.16%)
Mar 05, 2012	57.32	57.39	56.99	57.15	2,545,208	-0.14(-0.25%)
Mar 02, 2012	57.48	57.52	57.29	57.29	1,811,971	-0.17(-0.30%)
Mar 01, 2012	57.44	57.57	57.44	57.47	2,436,927	+0.04(+0.06%)
Feb 29, 2012	57.43	57.53	57.30	57.43	4,160,980	+0.01(+0.02%)
Feb 28, 2012	57.30	57.47	57.30	57.41	1,736,057	+0.20(+0.35%)
Feb 27, 2012	57.23	57.36	57.17	57.21	2,091,133	-0.03(-0.05%)
Feb 24, 2012	57.20	57.34	55.92	57.24	2,032,081	+0.06(+0.10%)
Feb 23, 2012	56.96	57.28	56.87	57.18	3,443,847	+0.34(+0.60%)
Feb 22, 2012	56.74	56.93	56.73	56.84	2,780,202	+0.14(+0.25%)
Feb 21, 2012	56.65	56.83	56.51	56.70	2,814,814	+0.19(+0.33%)
Feb 17, 2012	56.64	56.64	56.38	56.51	2,453,721	+0.06(+0.10%)
Feb 16, 2012	56.34	56.53	56.14	56.45	3,908,057	+0.21(+0.38%)
Feb 15, 2012	56.50	56.60	56.22	56.24	2,755,859	-0.24(-0.43%)
Feb 14, 2012	56.58	56.60	56.48	56.48	4,205,923	-0.06(-0.10%)
Feb 13, 2012	56.73	56.74	56.51	56.54	3,439,898	+0.00(+0.00%)
Feb 10, 2012	56.55	56.65	56.50	56.54	4,589,424	-0.30(-0.53%)
Feb 09, 2012	56.78	56.88	56.65	56.84	11,254,362	+0.11(+0.20%)
Feb 08, 2012	56.78	56.85	56.63	56.73	3,587,843	+0.04(+0.08%)
Feb 07, 2012	56.65	56.81	56.51	56.68	5,243,373	+0.10(+0.18%)
Feb 06, 2012	56.57	56.58	56.41	56.58	2,451,663	+0.01(+0.03%)
Feb 03, 2012	56.68	56.71	56.47	56.57	2,854,007	+0.14(+0.25%)
Feb 02, 2012	56.48	56.48	56.31	56.43	3,160,199	-0.01(-0.03%)

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