Date	Open	High	Low	Close	Volume	Change (%)
May 24, 2011	19.82	20.14	19.63	19.89	225,783	+0.13(+0.66%)
May 23, 2011	19.45	19.95	19.32	19.76	149,475	-0.37(-1.84%)
May 20, 2011	19.95	20.27	19.89	20.13	174,956	+0.02(+0.10%)
May 19, 2011	20.03	20.20	19.59	20.11	159,903	+0.02(+0.10%)
May 18, 2011	20.25	20.30	19.86	20.09	180,333	+0.03(+0.15%)
May 17, 2011	19.50	20.13	19.10	20.06	350,698	+0.42(+2.14%)
May 16, 2011	20.43	20.62	19.11	19.64	407,375	-1.09(-5.26%)
May 13, 2011	20.80	21.27	20.50	20.73	278,622	-0.06(-0.29%)
May 12, 2011	20.50	20.99	20.31	20.79	334,889	+0.22(+1.07%)
May 11, 2011	20.25	20.74	20.08	20.57	399,926	+0.13(+0.64%)
May 10, 2011	20.40	20.48	20.02	20.44	338,994	+0.18(+0.89%)
May 09, 2011	19.80	20.28	18.99	20.26	896,452	-0.58(-2.78%)
May 06, 2011	21.19	21.19	20.61	20.84	142,263	+0.12(+0.58%)
May 05, 2011	21.06	21.45	20.42	20.72	259,504	-0.51(-2.40%)
May 04, 2011	20.59	21.37	19.74	21.23	197,620	+0.44(+2.12%)
May 03, 2011	21.55	21.88	20.51	20.79	169,651	-0.88(-4.06%)

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