Date	Open	High	Low	Close	Volume	Change (%)
May 24, 2011	22.91	22.92	22.86	22.90	13,207	+0.01(+0.06%)
May 23, 2011	22.89	22.95	22.85	22.89	41,017	-0.08(-0.34%)
May 20, 2011	22.94	22.97	22.93	22.97	3,339	+0.00(+0.00%)
May 19, 2011	22.98	22.98	22.95	22.97	6,248	-0.02(-0.10%)
May 18, 2011	22.92	22.99	22.92	22.99	4,262	+0.08(+0.34%)
May 17, 2011	22.89	22.93	22.89	22.91	8,700	-0.05(-0.20%)
May 16, 2011	22.97	22.98	22.92	22.96	23,257	+0.00(+0.00%)
May 13, 2011	22.99	22.99	22.94	22.96	6,403	-0.03(-0.15%)
May 12, 2011	22.98	23.00	22.96	22.99	22,008	+0.01(+0.05%)
May 11, 2011	23.05	23.05	22.97	22.98	4,947	-0.07(-0.31%)
May 10, 2011	23.00	23.06	23.00	23.05	29,293	+0.02(+0.07%)
May 09, 2011	22.96	23.04	22.96	23.03	14,124	+0.06(+0.27%)
May 06, 2011	23.02	23.03	22.97	22.97	11,675	+0.00(+0.00%)
May 05, 2011	22.97	23.00	22.93	22.97	48,189	-0.02(-0.07%)
May 04, 2011	23.05	23.05	22.97	22.99	17,005	-0.05(-0.20%)
May 03, 2011	23.06	23.06	23.00	23.04	24,358	-0.08(-0.34%)
May 02, 2011	23.11	23.11	23.11	23.11	27,267	+0.03(+0.14%)
Apr 29, 2011	23.08	23.41	23.07	23.08	19,625	+0.03(+0.13%)
Apr 28, 2011	23.05	23.07	23.02	23.05	4,440	+0.06(+0.26%)
Apr 27, 2011	22.97	23.01	22.97	22.99	26,617	+0.00(+0.01%)
Apr 26, 2011	22.96	23.02	22.96	22.99	46,065	+0.05(+0.20%)
Apr 25, 2011	22.93	22.94	22.89	22.94	30,082	+0.04(+0.16%)
Apr 21, 2011	22.89	22.93	22.89	22.91	58,086	+0.04(+0.19%)
Apr 20, 2011	22.85	22.91	22.85	22.86	20,082	+0.03(+0.14%)
Apr 19, 2011	22.79	22.83	22.77	22.83	7,627	+0.05(+0.24%)
Apr 18, 2011	22.79	22.79	22.72	22.78	12,750	-0.05(-0.22%)
Apr 15, 2011	22.81	22.84	22.81	22.83	17,160	+0.06(+0.28%)
Apr 14, 2011	22.72	22.78	22.72	22.77	5,079	-0.00(-0.02%)
Apr 13, 2011	22.78	22.78	22.75	22.77	2,931	+0.01(+0.03%)
Apr 12, 2011	22.72	22.76	22.72	22.76	9,037	+0.03(+0.14%)
Apr 11, 2011	22.80	22.80	22.73	22.73	12,092	-0.05(-0.24%)
Apr 08, 2011	22.78	22.80	22.77	22.79	103,105	+0.00(+0.02%)
Apr 07, 2011	22.79	22.82	22.78	22.78	27,299	-0.01(-0.04%)
Apr 06, 2011	22.79	22.83	22.79	22.79	7,991	-0.02(-0.08%)
Apr 05, 2011	22.77	22.84	22.77	22.81	10,923	+0.01(+0.03%)
Apr 04, 2011	22.82	22.83	22.79	22.80	14,498	-0.05(-0.23%)
Apr 01, 2011	22.81	22.86	22.81	22.85	4,759	+0.07(+0.30%)
Mar 31, 2011	22.82	22.82	22.78	22.79	9,505	-0.01(-0.03%)
Mar 30, 2011	22.78	22.81	22.74	22.79	38,178	+0.09(+0.38%)
Mar 29, 2011	22.68	22.74	22.68	22.71	19,181	-0.00(-0.00%)
Mar 28, 2011	22.74	22.75	22.71	22.71	26,893	-0.03(-0.12%)
Mar 25, 2011	22.79	22.79	22.72	22.73	28,952	-0.00(-0.02%)
Mar 24, 2011	22.73	22.74	22.70	22.74	5,003	+0.05(+0.23%)
Mar 23, 2011	22.72	22.72	22.66	22.69	11,811	+0.01(+0.05%)
Mar 22, 2011	22.73	22.73	22.68	22.68	6,105	-0.07(-0.31%)
Mar 21, 2011	22.71	22.75	22.71	22.75	12,437	+0.08(+0.34%)
Mar 18, 2011	22.69	22.69	22.65	22.67	11,115	+0.05(+0.24%)
Mar 17, 2011	22.65	22.65	22.61	22.61	14,286	+0.06(+0.28%)
Mar 16, 2011	22.62	22.65	22.55	22.55	14,225	-0.09(-0.38%)
Mar 15, 2011	22.60	22.64	22.60	22.64	18,244	-0.03(-0.12%)
Mar 14, 2011	22.68	22.68	22.63	22.66	17,444	-0.04(-0.19%)
Mar 11, 2011	22.62	22.71	22.62	22.71	15,115	+0.01(+0.03%)
Mar 10, 2011	22.71	22.71	22.65	22.70	15,150	-0.04(-0.19%)
Mar 09, 2011	22.75	22.76	22.69	22.74	10,978	-0.00(-0.01%)
Mar 08, 2011	22.62	22.75	22.62	22.75	30,192	+0.04(+0.17%)
Mar 07, 2011	22.94	22.94	22.66	22.71	42,942	-0.01(-0.03%)
Mar 04, 2011	22.76	22.76	22.70	22.72	20,389	-0.02(-0.08%)
Mar 03, 2011	22.66	22.74	22.66	22.73	35,147	+0.06(+0.25%)
Mar 02, 2011	22.65	22.72	22.65	22.68	40,476	-0.03(-0.14%)

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