Date	Open	High	Low	Close	Volume	Change (%)
May 24, 2011	74.05	74.28	74.02	74.22	825,989	+0.08(+0.10%)
May 23, 2011	74.34	74.36	74.11	74.15	1,199,274	+0.10(+0.14%)
May 20, 2011	73.87	74.07	73.86	74.05	865,232	+0.18(+0.24%)
May 19, 2011	73.51	73.90	73.48	73.87	927,932	+0.08(+0.10%)
May 18, 2011	74.14	74.16	73.79	73.79	1,021,714	-0.43(-0.57%)
May 17, 2011	74.16	74.27	74.07	74.22	1,274,506	+0.22(+0.29%)
May 16, 2011	73.84	74.02	73.72	74.00	763,353	+0.18(+0.24%)
May 13, 2011	73.73	74.07	73.70	73.82	638,824	+0.29(+0.39%)
May 12, 2011	73.72	73.79	73.43	73.54	842,861	-0.16(-0.22%)
May 11, 2011	73.40	73.73	73.33	73.70	789,545	+0.26(+0.36%)
May 10, 2011	73.63	73.67	73.41	73.43	854,838	-0.36(-0.48%)
May 09, 2011	73.70	73.82	73.68	73.79	722,974	+0.11(+0.15%)
May 06, 2011	73.34	73.82	73.30	73.68	1,337,904	+0.04(+0.05%)
May 05, 2011	73.44	73.67	73.40	73.64	1,160,800	+0.36(+0.50%)
May 04, 2011	73.10	73.35	73.10	73.28	1,511,185	+0.19(+0.25%)
May 03, 2011	73.06	73.13	72.96	73.09	2,145,874	+0.19(+0.27%)

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