Date	Open	High	Low	Close	Volume	Change (%)
May 24, 2011	20.95	20.96	20.86	20.89	109,370	-0.02(-0.09%)
May 23, 2011	20.92	20.95	20.84	20.90	91,347	-0.17(-0.83%)
May 20, 2011	21.19	21.19	21.03	21.08	133,467	-0.11(-0.51%)
May 19, 2011	21.14	21.20	21.07	21.19	1,042,398	+0.11(+0.51%)
May 18, 2011	20.96	21.09	20.91	21.08	1,042,617	+0.15(+0.72%)
May 17, 2011	20.88	20.96	20.83	20.93	178,461	+0.00(+0.00%)
May 16, 2011	20.93	21.02	20.91	20.93	431,707	-0.06(-0.29%)
May 13, 2011	21.08	21.12	20.96	20.99	185,626	-0.05(-0.24%)
May 12, 2011	20.76	21.06	20.76	21.04	1,051,793	+0.22(+1.07%)
May 11, 2011	20.87	20.93	20.75	20.82	63,308	-0.08(-0.36%)
May 10, 2011	20.79	20.92	20.79	20.89	1,008,803	+0.13(+0.64%)
May 09, 2011	20.74	20.79	20.69	20.76	43,708	+0.05(+0.22%)
May 06, 2011	20.76	20.89	20.66	20.71	83,883	+0.06(+0.31%)
May 05, 2011	20.67	20.81	20.60	20.65	129,592	-0.14(-0.68%)
May 04, 2011	20.85	20.86	20.75	20.79	27,503	-0.01(-0.06%)
May 03, 2011	20.80	20.83	20.75	20.80	305,179	-0.01(-0.06%)
May 02, 2011	20.80	20.82	20.80	20.82	45,904	+0.00(+0.00%)
Apr 29, 2011	20.83	20.85	20.79	20.82	37,503	+0.05(+0.22%)
Apr 28, 2011	20.58	20.78	20.58	20.77	82,743	+0.15(+0.74%)
Apr 27, 2011	20.61	20.63	20.53	20.62	45,459	+0.13(+0.62%)
Apr 26, 2011	20.41	20.52	20.38	20.49	266,818	+0.11(+0.56%)
Apr 25, 2011	20.36	20.38	20.27	20.38	58,609	-0.05(-0.27%)
Apr 21, 2011	20.49	20.49	20.40	20.43	191,013	+0.05(+0.25%)
Apr 20, 2011	20.43	20.44	20.37	20.38	165,523	+0.20(+1.00%)
Apr 19, 2011	20.18	20.18	20.07	20.18	238,473	+0.07(+0.33%)
Apr 18, 2011	20.17	20.17	20.01	20.11	101,370	-0.17(-0.85%)
Apr 15, 2011	20.20	20.32	20.16	20.28	51,222	+0.07(+0.36%)
Apr 14, 2011	20.06	20.23	20.04	20.21	196,646	+0.10(+0.49%)
Apr 13, 2011	20.12	20.14	20.06	20.11	78,788	+0.03(+0.16%)
Apr 12, 2011	20.06	20.10	19.97	20.08	193,914	+0.04(+0.18%)
Apr 11, 2011	20.09	20.13	20.04	20.04	353,503	+0.05(+0.27%)
Apr 08, 2011	20.18	20.18	19.92	19.99	2,060,284	-0.10(-0.51%)
Apr 07, 2011	20.17	20.17	20.00	20.09	44,106	-0.05(-0.24%)
Apr 06, 2011	20.23	20.23	20.11	20.14	53,854	-0.00(-0.01%)
Apr 05, 2011	20.09	20.18	20.08	20.14	53,192	+0.03(+0.15%)
Apr 04, 2011	20.09	20.12	20.06	20.11	32,329	+0.05(+0.22%)
Apr 01, 2011	20.05	20.13	19.99	20.07	47,337	+0.14(+0.69%)
Mar 31, 2011	19.95	20.00	19.92	19.93	229,710	-0.03(-0.15%)
Mar 30, 2011	19.90	19.98	19.89	19.96	349,459	+0.14(+0.73%)
Mar 29, 2011	19.69	19.82	19.69	19.81	28,490	+0.09(+0.47%)
Mar 28, 2011	19.82	19.85	19.72	19.72	88,885	-0.04(-0.18%)
Mar 25, 2011	19.71	19.83	19.71	19.76	62,926	+0.00(+0.00%)
Mar 24, 2011	19.64	19.78	19.63	19.76	53,209	+0.19(+0.95%)
Mar 23, 2011	19.44	19.60	19.39	19.57	33,495	+0.08(+0.43%)
Mar 22, 2011	19.54	19.56	19.48	19.49	43,921	-0.04(-0.22%)
Mar 21, 2011	19.56	19.57	19.52	19.53	41,488	+0.27(+1.42%)
Mar 18, 2011	19.31	19.31	19.21	19.26	131,991	+0.08(+0.42%)
Mar 17, 2011	19.35	19.52	19.15	19.18	58,681	+0.11(+0.58%)
Mar 16, 2011	19.28	19.39	18.97	19.07	94,431	-0.30(-1.55%)
Mar 15, 2011	19.28	19.41	19.27	19.37	78,945	-0.17(-0.86%)
Mar 14, 2011	19.55	19.59	19.42	19.53	88,928	-0.14(-0.73%)
Mar 11, 2011	19.54	19.72	19.53	19.68	87,953	+0.03(+0.15%)
Mar 10, 2011	19.73	19.76	19.64	19.65	262,504	-0.17(-0.83%)
Mar 09, 2011	19.70	19.83	19.69	19.81	19,797	+0.04(+0.19%)
Mar 08, 2011	19.53	19.80	19.53	19.78	98,971	+0.21(+1.07%)
Mar 07, 2011	19.72	19.73	19.50	19.57	55,436	-0.11(-0.55%)
Mar 04, 2011	19.75	19.79	19.56	19.68	61,664	-0.09(-0.44%)
Mar 03, 2011	19.67	19.80	19.66	19.76	95,829	+0.24(+1.25%)
Mar 02, 2011	19.46	19.59	19.46	19.52	36,018	+0.02(+0.12%)

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