Date	Open	High	Low	Close	Volume	Change (%)
May 24, 2011	81.97	82.02	81.92	82.02	17,626	+0.14(+0.18%)
May 23, 2011	81.97	81.97	81.86	81.88	93,368	-0.07(-0.09%)
May 20, 2011	81.97	81.97	81.91	81.95	66,824	+0.06(+0.08%)
May 19, 2011	81.89	81.96	81.87	81.89	41,378	-0.05(-0.06%)
May 18, 2011	81.98	81.98	81.90	81.94	24,751	+0.04(+0.05%)
May 17, 2011	81.82	81.90	81.78	81.90	197,449	-0.00(-0.00%)
May 16, 2011	82.01	82.01	81.88	81.90	54,995	-0.02(-0.02%)
May 13, 2011	81.89	81.94	81.86	81.91	32,832	+0.02(+0.02%)
May 12, 2011	81.99	82.00	81.85	81.90	25,776	-0.12(-0.15%)
May 11, 2011	82.17	82.19	82.02	82.02	48,978	-0.18(-0.22%)
May 10, 2011	82.19	82.24	82.19	82.20	45,618	-0.03(-0.04%)
May 09, 2011	82.17	82.23	82.16	82.23	13,623	+0.10(+0.12%)
May 06, 2011	82.03	82.21	82.03	82.13	11,826	+0.01(+0.01%)
May 05, 2011	82.24	82.25	82.13	82.13	10,341	-0.17(-0.20%)
May 04, 2011	82.30	82.36	82.29	82.29	14,025	-0.03(-0.03%)
May 03, 2011	82.36	82.37	82.32	82.32	32,837	-0.03(-0.03%)

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