Date	Open	High	Low	Close	Volume	Change (%)
May 24, 2011	51.22	51.43	50.85	51.18	1,493,254	+0.17(+0.34%)
May 23, 2011	50.51	51.26	50.45	51.00	1,363,024	-0.30(-0.59%)
May 20, 2011	51.59	51.61	50.90	51.31	1,256,103	-0.44(-0.85%)
May 19, 2011	51.93	52.07	51.32	51.75	1,045,259	-0.02(-0.03%)
May 18, 2011	50.67	51.85	50.19	51.76	2,542,865	+1.30(+2.58%)
May 17, 2011	50.58	50.67	49.89	50.46	980,175	-0.32(-0.64%)
May 16, 2011	50.38	51.03	50.21	50.79	1,096,798	+0.28(+0.56%)
May 13, 2011	50.73	50.81	50.08	50.51	916,310	-0.04(-0.08%)
May 12, 2011	50.34	50.75	49.92	50.55	1,837,248	+0.00(+0.00%)
May 11, 2011	51.16	51.16	50.38	50.55	1,169,088	-0.70(-1.37%)
May 10, 2011	50.07	51.34	50.07	51.25	1,297,743	+1.22(+2.44%)
May 09, 2011	49.33	50.10	49.30	50.03	715,040	+0.59(+1.19%)
May 06, 2011	50.47	50.61	49.37	49.44	1,080,177	-0.47(-0.94%)
May 05, 2011	49.25	50.37	49.09	49.91	1,057,472	+0.32(+0.64%)
May 04, 2011	49.81	49.92	48.92	49.59	1,327,027	-0.20(-0.41%)
May 03, 2011	49.87	50.40	49.25	49.80	1,491,335	-0.06(-0.12%)

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