Date	Open	High	Low	Close	Volume	Change (%)
May 24, 2011	21.50	21.55	21.49	21.51	63,143	-0.01(-0.04%)
May 23, 2011	21.51	21.57	21.50	21.52	121,585	+0.00(+0.00%)
May 20, 2011	21.49	21.52	21.49	21.52	70,954	+0.00(+0.02%)
May 19, 2011	21.43	21.51	21.43	21.51	78,572	+0.01(+0.05%)
May 18, 2011	21.52	21.53	21.50	21.50	81,351	-0.03(-0.13%)
May 17, 2011	21.50	21.55	21.49	21.53	72,147	+0.03(+0.15%)
May 16, 2011	21.49	21.52	21.48	21.50	162,243	+0.01(+0.05%)
May 13, 2011	21.42	21.51	21.42	21.49	65,505	+0.02(+0.09%)
May 12, 2011	21.43	21.49	21.43	21.47	62,055	+0.00(+0.00%)
May 11, 2011	21.41	21.49	21.41	21.47	74,330	+0.05(+0.23%)
May 10, 2011	21.46	21.49	21.42	21.42	85,533	-0.05(-0.25%)
May 09, 2011	21.46	21.50	21.46	21.47	98,805	+0.00(+0.02%)
May 06, 2011	21.40	21.50	21.40	21.47	28,371	+0.03(+0.14%)
May 05, 2011	21.41	21.46	21.41	21.44	25,263	+0.04(+0.18%)
May 04, 2011	21.34	21.42	21.34	21.40	64,516	+0.03(+0.14%)
May 03, 2011	21.37	21.40	21.36	21.37	97,266	+0.00(+0.00%)
May 02, 2011	21.37	21.37	21.37	21.37	51,951	-0.02(-0.10%)
Apr 29, 2011	21.30	21.39	21.30	21.39	57,281	+0.06(+0.27%)
Apr 28, 2011	21.28	21.34	21.28	21.33	24,890	+0.03(+0.16%)
Apr 27, 2011	21.26	21.30	21.25	21.30	148,880	-0.03(-0.12%)
Apr 26, 2011	21.24	21.33	21.24	21.32	73,575	+0.09(+0.43%)
Apr 25, 2011	21.22	21.25	21.20	21.23	64,729	+0.06(+0.27%)
Apr 21, 2011	21.18	21.23	21.18	21.18	40,473	-0.03(-0.14%)
Apr 20, 2011	21.22	21.24	21.19	21.21	56,143	-0.00(-0.02%)
Apr 19, 2011	21.23	21.27	21.21	21.21	449,139	+0.02(+0.07%)
Apr 18, 2011	21.17	21.21	21.14	21.19	75,341	+0.04(+0.20%)
Apr 15, 2011	21.09	21.16	21.09	21.15	46,578	+0.11(+0.52%)
Apr 14, 2011	21.07	21.08	21.03	21.04	63,481	-0.03(-0.13%)
Apr 13, 2011	21.05	21.07	21.02	21.07	46,886	+0.03(+0.14%)
Apr 12, 2011	21.01	21.07	21.01	21.04	99,876	+0.06(+0.31%)
Apr 11, 2011	20.95	21.02	20.95	20.97	52,378	+0.00(+0.02%)
Apr 08, 2011	20.98	20.99	20.95	20.97	44,749	-0.04(-0.18%)
Apr 07, 2011	20.97	21.02	20.97	21.01	72,759	+0.02(+0.09%)
Apr 06, 2011	21.03	21.03	20.99	20.99	38,233	-0.04(-0.18%)
Apr 05, 2011	21.02	21.08	21.00	21.03	142,169	-0.02(-0.11%)
Apr 04, 2011	21.08	21.11	21.05	21.05	46,744	-0.02(-0.07%)
Apr 01, 2011	21.01	21.07	21.00	21.07	28,960	+0.04(+0.19%)
Mar 31, 2011	21.09	21.09	21.02	21.03	100,897	-0.01(-0.04%)
Mar 30, 2011	21.04	21.06	21.01	21.03	51,610	+0.02(+0.07%)
Mar 29, 2011	21.05	21.05	20.98	21.02	101,817	-0.03(-0.13%)
Mar 28, 2011	21.06	21.06	21.03	21.05	19,618	-0.01(-0.05%)
Mar 25, 2011	21.10	21.12	21.04	21.06	60,289	-0.01(-0.07%)
Mar 24, 2011	21.11	21.12	21.07	21.07	37,943	-0.06(-0.31%)
Mar 23, 2011	21.12	21.18	21.06	21.14	652,714	+0.04(+0.18%)
Mar 22, 2011	21.12	21.15	21.08	21.10	70,108	-0.02(-0.07%)
Mar 21, 2011	21.12	21.15	21.11	21.11	16,829	-0.04(-0.21%)
Mar 18, 2011	21.17	21.18	21.15	21.16	15,946	-0.01(-0.05%)
Mar 17, 2011	21.21	21.21	21.15	21.17	27,294	-0.03(-0.13%)
Mar 16, 2011	21.17	21.25	21.14	21.20	29,616	+0.09(+0.45%)
Mar 15, 2011	21.16	21.17	21.10	21.10	71,144	-0.04(-0.20%)
Mar 14, 2011	21.15	21.16	21.12	21.14	54,166	+0.05(+0.23%)
Mar 11, 2011	21.12	21.17	21.05	21.09	85,760	+0.02(+0.09%)
Mar 10, 2011	21.07	21.10	21.01	21.07	64,090	+0.05(+0.25%)
Mar 09, 2011	21.02	21.04	20.97	21.02	24,927	+0.08(+0.36%)
Mar 08, 2011	20.96	20.99	20.94	20.95	62,699	-0.04(-0.20%)
Mar 07, 2011	20.92	21.02	20.92	20.99	61,104	+0.02(+0.11%)
Mar 04, 2011	20.95	20.99	20.94	20.96	49,706	+0.04(+0.18%)
Mar 03, 2011	20.97	20.97	20.91	20.93	59,264	-0.08(-0.38%)
Mar 02, 2011	21.05	21.06	21.00	21.01	32,336	-0.04(-0.18%)

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