Date	Open	High	Low	Close	Volume	Change (%)
Apr 30, 2013	73.45	73.45	73.43	73.43	583,061	-0.01(-0.01%)
Apr 29, 2013	73.43	73.44	73.43	73.44	571,531	+0.02(+0.02%)
Apr 26, 2013	73.41	73.43	73.41	73.43	789,236	+0.02(+0.02%)
Apr 25, 2013	73.40	73.43	73.40	73.41	791,869	-0.01(-0.01%)
Apr 24, 2013	73.41	73.42	73.40	73.42	665,456	+0.01(+0.01%)
Apr 23, 2013	73.42	73.42	73.41	73.41	603,982	-0.01(-0.01%)
Apr 22, 2013	73.41	73.42	73.39	73.42	917,659	+0.01(+0.01%)
Apr 19, 2013	73.40	73.41	73.39	73.41	681,029	+0.00(+0.00%)
Apr 18, 2013	73.40	73.42	73.40	73.41	1,375,267	+0.00(+0.00%)
Apr 17, 2013	73.40	73.42	73.40	73.41	445,220	+0.00(+0.00%)
Apr 16, 2013	73.40	73.41	73.40	73.41	613,911	+0.00(+0.00%)
Apr 15, 2013	73.40	73.42	73.40	73.41	695,018	+0.01(+0.01%)
Apr 12, 2013	73.39	73.41	73.39	73.40	560,054	+0.01(+0.01%)
Apr 11, 2013	73.39	73.40	73.38	73.39	4,706,027	+0.00(+0.00%)
Apr 10, 2013	73.38	73.40	73.38	73.39	1,895,554	+0.00(+0.00%)
Apr 09, 2013	73.39	73.41	73.39	73.39	1,204,629	+0.00(+0.00%)
Apr 08, 2013	73.39	73.41	73.39	73.39	686,364	-0.02(-0.02%)
Apr 05, 2013	73.40	73.41	73.40	73.41	706,640	+0.00(+0.00%)
Apr 04, 2013	73.39	73.41	73.39	73.41	526,015	+0.03(+0.04%)
Apr 03, 2013	73.36	73.39	73.36	73.38	832,495	-0.01(-0.01%)
Apr 02, 2013	73.37	73.40	73.37	73.39	5,822,988	+0.00(+0.00%)
Apr 01, 2013	73.33	73.39	73.33	73.39	1,168,769	+0.01(+0.01%)
Mar 28, 2013	73.36	73.38	73.36	73.38	795,556	+0.01(+0.01%)
Mar 27, 2013	73.38	73.38	73.36	73.38	1,454,675	+0.02(+0.02%)
Mar 26, 2013	73.36	73.36	73.34	73.36	580,428	+0.01(+0.01%)
Mar 25, 2013	73.35	73.36	73.35	73.35	702,630	+0.00(+0.00%)
Mar 22, 2013	73.38	73.38	73.35	73.35	683,359	-0.02(-0.02%)
Mar 21, 2013	73.35	73.37	73.35	73.37	795,587	+0.01(+0.01%)
Mar 20, 2013	73.35	73.36	73.35	73.36	681,389	-0.01(-0.01%)
Mar 19, 2013	73.38	73.38	73.36	73.37	608,564	-0.01(-0.01%)
Mar 18, 2013	73.35	73.38	73.35	73.38	479,832	+0.02(+0.02%)
Mar 15, 2013	73.34	73.36	73.33	73.36	689,883	+0.03(+0.04%)
Mar 14, 2013	73.32	73.34	73.32	73.33	553,524	+0.00(+0.00%)
Mar 13, 2013	73.33	73.34	73.33	73.33	988,526	-0.02(-0.02%)
Mar 12, 2013	73.34	73.35	73.33	73.35	1,329,173	+0.02(+0.02%)
Mar 11, 2013	73.34	73.34	73.33	73.33	1,461,516	-0.01(-0.01%)
Mar 08, 2013	73.32	73.34	73.31	73.34	837,268	+0.01(+0.01%)
Mar 07, 2013	73.34	73.35	73.33	73.33	598,309	-0.02(-0.02%)
Mar 06, 2013	73.35	73.35	73.34	73.35	521,119	-0.01(-0.01%)
Mar 05, 2013	73.36	73.37	73.36	73.36	671,207	-0.01(-0.01%)
Mar 04, 2013	73.37	73.38	73.37	73.37	559,161	-0.01(-0.01%)
Mar 01, 2013	73.37	73.38	73.37	73.38	1,799,125	+0.02(+0.02%)
Feb 28, 2013	73.36	73.38	73.36	73.36	764,149	-0.01(-0.01%)
Feb 27, 2013	73.36	73.37	73.36	73.37	1,334,045	+0.00(+0.00%)
Feb 26, 2013	73.35	73.37	73.35	73.37	1,577,973	+0.02(+0.02%)
Feb 25, 2013	73.33	73.36	73.33	73.35	499,027	+0.02(+0.02%)
Feb 22, 2013	73.33	73.34	73.33	73.33	798,063	+0.00(+0.00%)
Feb 21, 2013	73.33	73.34	73.33	73.33	703,006	+0.03(+0.04%)
Feb 20, 2013	73.31	73.32	73.31	73.31	552,967	+0.00(+0.00%)
Feb 19, 2013	73.32	73.33	73.31	73.31	912,912	-0.01(-0.01%)
Feb 15, 2013	73.31	73.32	73.31	73.32	1,282,020	+0.01(+0.01%)
Feb 14, 2013	73.31	73.32	73.31	73.31	668,210	+0.01(+0.01%)
Feb 13, 2013	73.33	73.33	73.30	73.30	582,268	-0.01(-0.01%)
Feb 12, 2013	73.33	73.33	73.31	73.31	609,727	-0.02(-0.03%)
Feb 11, 2013	73.33	73.34	73.33	73.33	869,348	-0.02(-0.03%)
Feb 08, 2013	73.33	73.35	73.33	73.35	679,784	+0.01(+0.01%)
Feb 07, 2013	73.35	73.35	73.33	73.34	774,590	+0.00(+0.00%)
Feb 06, 2013	73.33	73.34	73.33	73.34	1,947,505	+0.02(+0.02%)
Feb 04, 2013	73.33	73.34	73.32	73.33	863,090	+0.02(+0.02%)

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