Date	Open	High	Low	Close	Volume	Change (%)
Feb 28, 2011	22.01	22.19	22.00	22.08	2,261,568	+0.12(+0.57%)
Feb 25, 2011	21.88	21.99	21.75	21.96	3,812,008	+0.21(+0.98%)
Feb 24, 2011	21.55	21.89	21.49	21.75	6,419,319	+0.15(+0.70%)
Feb 23, 2011	22.00	22.07	21.32	21.60	8,536,219	-0.45(-2.04%)
Feb 22, 2011	22.51	22.62	22.01	22.05	5,625,346	-0.90(-3.90%)
Feb 18, 2011	23.00	23.06	22.83	22.94	3,533,422	-0.02(-0.07%)
Feb 17, 2011	22.87	22.97	22.76	22.96	721,785	+0.07(+0.29%)
Feb 16, 2011	22.80	22.97	22.67	22.89	6,830,147	+0.24(+1.07%)
Feb 15, 2011	22.53	22.66	22.48	22.65	3,604,713	+0.08(+0.35%)
Feb 14, 2011	22.70	22.72	22.55	22.57	1,939,641	-0.10(-0.45%)
Feb 11, 2011	22.30	22.72	22.27	22.67	2,219,091	+0.30(+1.33%)
Feb 10, 2011	21.94	22.42	21.93	22.38	5,103,122	+0.34(+1.54%)
Feb 09, 2011	21.89	22.08	21.89	22.04	2,607,018	+0.05(+0.25%)
Feb 08, 2011	21.93	22.02	21.84	21.98	1,353,622	+0.05(+0.21%)
Feb 07, 2011	21.90	22.07	21.86	21.94	2,763,773	+0.07(+0.31%)
Feb 04, 2011	21.90	21.90	21.69	21.87	1,139,536	+0.05(+0.22%)
Feb 03, 2011	21.69	22.00	21.69	21.82	2,604,976	+0.11(+0.49%)
Feb 02, 2011	22.10	22.10	21.71	21.72	4,878,350	-0.45(-2.01%)
Feb 01, 2011	21.84	22.23	21.84	22.16	4,126,244	+0.43(+2.00%)
Jan 31, 2011	21.61	21.80	21.61	21.73	2,595,539	+0.13(+0.59%)
Jan 28, 2011	22.27	22.27	21.57	21.60	4,807,252	-0.63(-2.82%)
Jan 27, 2011	22.07	22.26	22.05	22.23	1,112,828	+0.16(+0.73%)
Jan 26, 2011	21.92	22.14	21.84	22.07	1,890,211	+0.26(+1.19%)
Jan 25, 2011	21.85	21.95	21.66	21.81	5,014,944	-0.15(-0.67%)
Jan 24, 2011	21.79	21.95	21.74	21.95	1,327,205	+0.16(+0.74%)
Jan 21, 2011	22.09	22.13	21.76	21.79	1,852,891	-0.15(-0.70%)
Jan 20, 2011	22.05	22.06	21.80	21.95	4,585,775	-0.19(-0.85%)
Jan 19, 2011	22.55	22.55	22.04	22.14	3,361,651	-0.41(-1.81%)
Jan 18, 2011	22.59	22.72	22.46	22.54	1,607,152	-0.04(-0.18%)
Jan 14, 2011	22.59	22.68	22.55	22.58	3,135,327	-0.04(-0.16%)
Jan 13, 2011	22.57	22.68	22.43	22.62	2,631,502	+0.09(+0.39%)
Jan 12, 2011	22.51	22.53	22.40	22.53	734,789	+0.18(+0.80%)
Jan 11, 2011	22.63	22.67	22.24	22.35	4,340,433	-0.15(-0.68%)
Jan 10, 2011	22.34	22.56	22.21	22.51	1,799,519	+0.11(+0.48%)
Jan 07, 2011	22.25	22.53	22.17	22.40	3,368,370	+0.17(+0.78%)
Jan 06, 2011	22.29	22.32	22.17	22.23	1,340,175	-0.09(-0.40%)
Jan 05, 2011	22.14	22.33	22.06	22.31	2,670,529	+0.10(+0.45%)
Jan 04, 2011	22.46	22.48	22.04	22.21	1,435,156	-0.17(-0.74%)
Jan 03, 2011	22.34	22.57	22.29	22.38	2,439,874	+0.27(+1.22%)
Dec 31, 2010	22.07	22.16	22.05	22.11	875,103	+0.02(+0.10%)
Dec 30, 2010	22.10	22.16	22.04	22.09	587,918	+0.01(+0.05%)
Dec 29, 2010	22.08	22.13	22.00	22.07	637,131	+0.06(+0.25%)
Dec 28, 2010	22.13	22.13	21.91	22.02	452,398	-0.01(-0.04%)
Dec 27, 2010	21.96	22.08	21.87	22.03	811,049	+0.07(+0.32%)
Dec 23, 2010	22.02	22.10	21.92	21.96	888,223	-0.08(-0.38%)
Dec 22, 2010	22.06	22.08	21.89	22.04	1,658,883	-0.03(-0.12%)
Dec 21, 2010	21.93	22.11	21.91	22.07	2,873,908	+0.24(+1.09%)
Dec 20, 2010	21.93	21.98	21.73	21.83	2,250,233	-0.04(-0.19%)
Dec 17, 2010	22.05	22.05	21.83	21.87	2,245,119	-0.16(-0.72%)
Dec 16, 2010	21.75	22.05	21.70	22.03	1,679,372	+0.29(+1.32%)
Dec 15, 2010	21.77	22.00	21.73	21.75	2,454,299	-0.08(-0.35%)
Dec 14, 2010	21.96	22.00	21.73	21.82	2,257,629	-0.09(-0.39%)
Dec 13, 2010	22.18	22.19	21.89	21.91	2,821,780	-0.18(-0.80%)
Dec 10, 2010	22.04	22.10	21.89	22.09	1,825,986	+0.07(+0.30%)
Dec 09, 2010	21.97	22.04	21.86	22.02	1,180,240	+0.19(+0.85%)
Dec 08, 2010	21.95	21.97	21.78	21.83	932,617	-0.10(-0.46%)
Dec 07, 2010	22.06	22.13	21.90	21.93	2,212,572	+0.06(+0.28%)
Dec 06, 2010	21.94	21.94	21.81	21.87	1,521,714	-0.09(-0.41%)
Dec 03, 2010	21.76	21.99	21.70	21.96	1,074,689	+0.14(+0.66%)
Dec 02, 2010	21.58	21.88	21.56	21.82	2,462,016	+0.29(+1.35%)

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