Date	Open	High	Low	Close	Volume	Change (%)
Feb 28, 2011	67.78	68.96	66.54	67.87	1,016,743	+0.37(+0.56%)
Feb 25, 2011	65.47	67.56	64.51	67.49	1,375,737	+4.11(+6.49%)
Feb 24, 2011	62.50	63.41	62.20	63.38	1,233,526	+0.78(+1.24%)
Feb 23, 2011	60.76	62.94	60.34	62.61	755,529	+1.96(+3.23%)
Feb 22, 2011	62.21	63.83	60.37	60.65	661,374	-1.53(-2.46%)
Feb 18, 2011	61.97	63.13	61.38	62.18	617,819	+0.17(+0.27%)
Feb 17, 2011	61.74	62.40	61.09	62.01	781,615	-0.03(-0.05%)
Feb 16, 2011	60.61	62.34	60.28	62.03	1,109,039	+1.71(+2.84%)
Feb 15, 2011	59.63	60.83	59.51	60.32	929,682	+0.39(+0.66%)
Feb 14, 2011	59.20	60.02	58.81	59.93	539,254	+0.80(+1.35%)
Feb 11, 2011	58.87	59.82	58.87	59.13	472,630	+0.08(+0.14%)
Feb 10, 2011	57.55	59.14	56.82	59.05	785,660	+1.03(+1.78%)
Feb 09, 2011	58.91	59.40	57.75	58.02	764,508	-1.19(-2.01%)
Feb 08, 2011	59.62	59.68	57.92	59.21	740,471	-0.61(-1.02%)
Feb 07, 2011	59.32	61.29	59.32	59.82	1,196,118	+0.67(+1.14%)
Feb 04, 2011	58.67	59.46	58.35	59.14	613,091	+0.31(+0.53%)
Feb 03, 2011	58.48	59.06	57.77	58.83	603,891	+0.22(+0.38%)
Feb 02, 2011	58.03	59.11	57.44	58.61	661,536	+0.56(+0.97%)
Feb 01, 2011	58.53	59.79	57.94	58.05	1,068,994	-0.17(-0.29%)
Jan 31, 2011	54.61	58.36	54.61	58.21	1,410,020	+3.14(+5.70%)
Jan 28, 2011	54.96	55.62	54.62	55.08	642,200	-0.08(-0.15%)
Jan 27, 2011	55.19	55.49	53.76	55.16	861,170	-0.11(-0.20%)
Jan 26, 2011	52.79	55.30	52.53	55.27	1,333,137	+2.79(+5.32%)
Jan 25, 2011	52.54	53.14	51.12	52.48	828,523	-0.26(-0.50%)
Jan 24, 2011	52.57	53.18	52.13	52.74	620,226	+0.25(+0.48%)
Jan 21, 2011	53.60	53.88	52.25	52.49	796,699	-0.71(-1.34%)
Jan 20, 2011	54.33	54.33	52.44	53.20	1,100,349	-1.36(-2.49%)
Jan 19, 2011	55.38	55.76	54.33	54.56	767,899	-0.87(-1.57%)
Jan 18, 2011	54.77	55.46	54.34	55.43	1,026,728	+0.65(+1.18%)
Jan 14, 2011	54.98	55.16	54.26	54.79	935,118	-0.20(-0.36%)
Jan 13, 2011	56.27	56.66	54.74	54.98	912,026	-1.10(-1.95%)
Jan 12, 2011	56.83	57.25	55.77	56.08	771,829	-0.13(-0.23%)
Jan 11, 2011	55.97	56.90	55.88	56.21	1,167,553	+0.44(+0.79%)
Jan 10, 2011	55.57	55.98	53.54	55.77	953,732	-0.37(-0.65%)
Jan 07, 2011	55.48	56.16	55.20	56.13	793,744	+0.90(+1.63%)
Jan 06, 2011	55.41	55.90	54.71	55.24	762,514	-0.18(-0.32%)
Jan 05, 2011	54.77	55.54	54.43	55.41	712,583	+0.53(+0.97%)
Jan 04, 2011	56.66	56.83	54.05	54.88	908,282	-2.48(-4.33%)
Jan 03, 2011	56.01	57.95	56.00	57.36	1,448,254	+2.17(+3.94%)
Dec 31, 2010	54.92	56.02	54.82	55.19	435,160	+0.30(+0.55%)
Dec 30, 2010	55.23	55.87	54.57	54.89	330,309	-0.27(-0.49%)
Dec 29, 2010	55.07	55.83	54.49	55.16	516,287	+0.32(+0.58%)
Dec 28, 2010	54.70	55.14	54.34	54.84	578,420	+0.59(+1.09%)
Dec 27, 2010	54.24	54.51	53.82	54.25	336,371	-0.15(-0.28%)
Dec 23, 2010	53.85	54.70	53.68	54.40	611,713	+0.59(+1.10%)
Dec 22, 2010	53.93	54.05	53.09	53.81	613,955	+0.85(+1.61%)
Dec 21, 2010	52.77	53.31	52.14	52.96	975,389	+0.60(+1.14%)
Dec 20, 2010	52.01	52.44	51.26	52.36	706,575	+0.38(+0.74%)
Dec 17, 2010	51.20	52.65	51.16	51.98	7,674,144	+0.81(+1.59%)
Dec 16, 2010	50.57	51.27	49.85	51.16	642,449	+0.59(+1.17%)
Dec 15, 2010	50.42	52.06	50.15	50.57	1,138,037	-0.06(-0.11%)
Dec 14, 2010	52.08	52.08	50.46	50.63	769,940	-1.35(-2.59%)
Dec 13, 2010	51.08	52.77	51.08	51.98	1,134,544	+1.16(+2.29%)
Dec 10, 2010	50.52	50.94	50.22	50.82	673,956	+0.62(+1.23%)
Dec 09, 2010	49.39	50.22	48.95	50.20	419,303	+0.99(+2.02%)
Dec 08, 2010	50.01	50.30	48.98	49.20	339,698	-0.87(-1.74%)
Dec 07, 2010	50.89	51.34	49.55	50.08	534,741	-0.20(-0.39%)
Dec 06, 2010	49.17	50.47	49.08	50.27	482,656	+0.96(+1.96%)
Dec 03, 2010	49.23	49.63	49.02	49.31	389,370	-0.19(-0.38%)
Dec 02, 2010	48.32	49.58	48.23	49.49	675,865	+1.10(+2.26%)

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