Date	Open	High	Low	Close	Volume	Change (%)
Feb 29, 2012	56.12	56.32	55.72	55.80	2,554,528	-0.25(-0.45%)
Feb 28, 2012	55.90	56.11	55.81	56.05	2,163,587	+0.21(+0.37%)
Feb 27, 2012	55.49	56.04	55.34	55.84	3,464,879	-0.02(-0.03%)
Feb 24, 2012	55.76	55.97	55.73	55.86	1,810,940	+0.19(+0.34%)
Feb 23, 2012	55.40	55.69	55.19	55.67	2,437,265	+0.27(+0.49%)
Feb 22, 2012	55.42	55.57	55.29	55.40	2,456,665	-0.06(-0.11%)
Feb 21, 2012	55.58	55.69	55.25	55.46	1,390,673	+0.05(+0.09%)
Feb 17, 2012	55.57	55.57	55.25	55.41	2,782,501	-0.01(-0.02%)
Feb 16, 2012	54.82	55.46	54.76	55.42	2,201,264	+0.63(+1.16%)
Feb 15, 2012	55.28	55.43	54.70	54.78	1,811,795	-0.30(-0.55%)
Feb 14, 2012	54.93	55.11	54.73	55.09	2,615,260	+0.01(+0.02%)
Feb 13, 2012	55.00	55.12	54.77	55.08	2,942,224	+0.40(+0.73%)
Feb 10, 2012	54.57	54.70	54.44	54.68	1,858,638	-0.35(-0.63%)
Feb 09, 2012	54.94	55.12	54.65	55.03	2,414,750	+0.23(+0.41%)
Feb 08, 2012	54.76	54.88	54.47	54.80	2,244,604	+0.10(+0.17%)
Feb 07, 2012	54.50	54.80	54.29	54.70	2,550,508	+0.11(+0.21%)
Feb 06, 2012	54.42	54.63	54.32	54.59	3,121,113	-0.03(-0.05%)
Feb 03, 2012	54.43	54.64	54.30	54.62	3,038,001	+0.74(+1.37%)
Feb 02, 2012	53.87	54.02	53.68	53.88	3,111,456	+0.10(+0.19%)
Feb 01, 2012	53.65	53.99	53.54	53.77	7,024,162	+0.49(+0.91%)
Jan 31, 2012	53.58	53.64	53.01	53.29	4,269,378	-0.04(-0.08%)
Jan 30, 2012	52.97	53.35	52.76	53.33	2,891,362	-0.07(-0.13%)
Jan 27, 2012	53.09	53.51	53.09	53.40	2,998,628	+0.03(+0.07%)
Jan 26, 2012	53.77	53.98	53.18	53.37	2,778,501	-0.20(-0.37%)
Jan 25, 2012	52.89	53.70	52.82	53.57	2,844,394	+0.67(+1.27%)
Jan 24, 2012	52.56	52.93	52.50	52.90	2,763,068	+0.05(+0.10%)
Jan 23, 2012	52.77	53.09	52.57	52.84	2,226,341	+0.11(+0.21%)
Jan 20, 2012	52.79	52.82	52.60	52.73	1,719,971	-0.12(-0.23%)
Jan 19, 2012	52.65	52.91	52.57	52.85	3,386,130	+0.37(+0.70%)
Jan 18, 2012	51.87	52.49	51.81	52.49	3,097,977	+0.64(+1.24%)
Jan 17, 2012	52.05	52.16	51.77	51.84	2,232,426	+0.24(+0.47%)
Jan 13, 2012	51.49	51.61	51.13	51.60	3,013,899	-0.19(-0.37%)
Jan 12, 2012	51.77	51.83	51.33	51.79	2,699,620	+0.17(+0.34%)
Jan 11, 2012	51.48	51.69	51.37	51.62	1,770,032	-0.03(-0.05%)
Jan 10, 2012	51.72	51.84	51.53	51.64	3,193,376	+0.48(+0.93%)
Jan 09, 2012	51.24	51.29	50.97	51.17	2,700,551	+0.03(+0.05%)
Jan 06, 2012	51.24	51.29	50.94	51.14	6,680,923	-0.06(-0.12%)
Jan 05, 2012	50.86	51.26	50.61	51.20	3,001,532	+0.14(+0.27%)
Jan 04, 2012	50.80	51.10	50.67	51.06	2,130,977	+0.81(+1.61%)
Dec 30, 2011	50.44	50.56	50.25	50.25	2,372,897	-0.21(-0.41%)
Dec 29, 2011	50.18	50.51	50.10	50.46	4,968,137	+0.43(+0.85%)
Dec 28, 2011	50.66	50.68	49.93	50.04	3,392,120	-0.61(-1.20%)
Dec 27, 2011	50.52	50.77	50.44	50.64	1,963,312	+0.06(+0.12%)
Dec 23, 2011	50.31	50.58	50.16	50.58	2,920,567	+0.83(+1.66%)
Dec 21, 2011	49.90	49.91	49.22	49.76	3,637,092	-0.18(-0.36%)
Dec 20, 2011	49.19	50.02	49.19	49.94	3,492,147	+1.45(+3.00%)
Dec 19, 2011	49.16	49.30	48.39	48.48	4,354,929	-0.48(-0.97%)
Dec 16, 2011	49.21	49.51	48.80	48.96	3,118,950	+0.13(+0.27%)
Dec 15, 2011	49.15	49.24	48.77	48.83	3,869,809	+0.10(+0.20%)
Dec 14, 2011	49.25	49.30	48.57	48.73	2,445,103	-0.69(-1.40%)
Dec 13, 2011	50.27	50.50	49.20	49.43	2,892,834	-0.53(-1.06%)
Dec 12, 2011	50.15	50.26	49.57	49.96	3,427,389	-0.72(-1.42%)
Dec 09, 2011	50.09	50.79	49.98	50.67	2,813,079	+0.82(+1.65%)
Dec 08, 2011	50.48	50.71	49.72	49.85	3,168,214	-0.93(-1.82%)
Dec 07, 2011	50.60	51.00	50.17	50.78	2,794,944	-0.03(-0.07%)
Dec 06, 2011	50.94	51.12	50.61	50.81	3,171,853	-0.07(-0.14%)
Dec 05, 2011	51.17	51.25	50.60	50.88	3,097,940	+0.49(+0.98%)
Dec 02, 2011	50.95	51.07	50.32	50.39	2,323,435	-0.10(-0.21%)

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