Date	Open	High	Low	Close	Volume	Change (%)
May 31, 2012	73.20	73.20	73.16	73.20	4,313,756	+0.03(+0.04%)
May 30, 2012	73.14	73.18	73.14	73.17	1,430,693	+0.03(+0.05%)
May 29, 2012	73.13	73.15	73.13	73.13	1,495,810	-0.02(-0.02%)
May 25, 2012	73.14	73.15	73.12	73.15	918,216	+0.03(+0.05%)
May 24, 2012	73.12	73.12	73.11	73.12	744,302	-0.03(-0.04%)
May 23, 2012	73.13	73.14	73.12	73.14	1,071,374	+0.03(+0.05%)
May 22, 2012	73.13	73.13	73.11	73.11	1,376,993	-0.03(-0.04%)
May 21, 2012	73.13	73.13	73.11	73.13	1,101,655	+0.01(+0.01%)
May 18, 2012	73.12	73.13	73.10	73.12	3,134,778	+0.01(+0.01%)
May 17, 2012	73.14	73.14	73.12	73.12	2,186,025	-0.03(-0.05%)
May 16, 2012	73.14	73.15	73.13	73.15	1,369,148	-0.01(-0.01%)
May 15, 2012	73.17	73.19	73.15	73.16	3,774,131	-0.01(-0.01%)
May 14, 2012	73.17	73.18	73.17	73.17	922,852	-0.01(-0.01%)
May 11, 2012	73.18	73.18	73.16	73.18	498,677	+0.01(+0.01%)
May 10, 2012	73.16	73.18	73.15	73.17	1,236,446	-0.01(-0.01%)
May 09, 2012	73.18	73.19	73.17	73.18	1,455,060	-0.01(-0.01%)
May 08, 2012	73.18	73.19	73.16	73.19	1,173,284	+0.01(+0.01%)
May 07, 2012	73.18	73.19	73.17	73.18	1,517,922	+0.00(+0.00%)
May 04, 2012	73.18	73.18	73.17	73.18	921,792	+0.03(+0.04%)
May 03, 2012	73.15	73.17	73.14	73.15	1,011,847	-0.01(-0.01%)
May 02, 2012	73.15	73.16	73.14	73.16	2,431,798	+0.01(+0.01%)
May 01, 2012	73.15	73.17	73.13	73.15	9,461,093	-0.00(-0.00%)
Apr 30, 2012	73.16	73.16	73.15	73.15	744,284	+0.02(+0.02%)
Apr 27, 2012	73.16	73.16	73.14	73.14	821,526	-0.02(-0.02%)
Apr 26, 2012	73.15	73.16	73.14	73.15	821,542	+0.01(+0.01%)
Apr 25, 2012	73.12	73.15	73.12	73.15	1,055,333	+0.02(+0.02%)
Apr 24, 2012	73.15	73.16	73.13	73.13	1,327,211	-0.03(-0.04%)
Apr 23, 2012	73.15	73.15	73.14	73.15	855,483	+0.02(+0.02%)
Apr 20, 2012	73.13	73.14	73.11	73.14	580,881	+0.00(+0.00%)
Apr 19, 2012	73.12	73.14	73.12	73.14	645,079	+0.01(+0.01%)
Apr 18, 2012	73.14	73.14	73.12	73.13	541,690	+0.02(+0.02%)
Apr 17, 2012	73.12	73.13	73.10	73.11	892,405	+0.00(+0.00%)
Apr 16, 2012	73.12	73.13	73.11	73.11	657,968	+0.00(+0.00%)
Apr 13, 2012	73.12	73.12	73.10	73.11	3,301,753	+0.01(+0.01%)
Apr 12, 2012	73.11	73.11	73.09	73.10	976,356	+0.01(+0.01%)
Apr 11, 2012	73.08	73.10	73.08	73.09	2,654,394	-0.01(-0.01%)
Apr 10, 2012	73.07	73.10	73.06	73.10	1,183,281	+0.03(+0.05%)
Apr 09, 2012	73.04	73.07	73.04	73.07	1,037,384	+0.05(+0.07%)
Apr 05, 2012	73.01	73.02	73.00	73.02	876,174	+0.03(+0.04%)
Apr 04, 2012	73.02	73.02	72.98	72.99	1,611,622	+0.02(+0.02%)
Apr 03, 2012	73.02	73.02	72.96	72.97	1,883,719	-0.05(-0.07%)
Apr 02, 2012	73.04	73.04	73.01	73.02	803,196	+0.02(+0.02%)
Mar 30, 2012	73.01	73.02	73.00	73.01	1,096,351	-0.01(-0.01%)
Mar 29, 2012	73.02	73.02	73.00	73.02	853,714	+0.03(+0.04%)
Mar 28, 2012	73.01	73.02	72.99	72.99	850,730	-0.02(-0.02%)
Mar 27, 2012	73.00	73.02	72.98	73.01	1,260,123	+0.03(+0.04%)
Mar 26, 2012	72.97	72.98	72.96	72.98	1,196,028	+0.02(+0.02%)
Mar 23, 2012	72.97	72.98	72.96	72.96	806,605	+0.01(+0.01%)
Mar 22, 2012	72.96	72.96	72.95	72.95	970,067	+0.01(+0.01%)
Mar 21, 2012	72.93	72.95	72.91	72.95	660,864	+0.04(+0.06%)
Mar 20, 2012	72.92	72.94	72.89	72.90	916,755	-0.02(-0.02%)
Mar 19, 2012	72.94	72.95	72.90	72.92	2,611,087	-0.05(-0.07%)
Mar 16, 2012	72.96	72.98	72.94	72.97	3,223,125	+0.04(+0.06%)
Mar 15, 2012	72.92	72.95	72.91	72.93	4,308,032	+0.04(+0.06%)
Mar 14, 2012	72.95	72.96	72.89	72.89	1,560,898	-0.10(-0.14%)
Mar 13, 2012	73.01	73.02	72.98	72.99	1,483,697	-0.04(-0.06%)
Mar 12, 2012	73.04	73.05	73.02	73.03	879,633	+0.01(+0.01%)
Mar 09, 2012	73.04	73.05	73.02	73.02	762,732	+0.00(+0.00%)
Mar 08, 2012	73.05	73.05	73.02	73.02	1,108,826	-0.03(-0.04%)
Mar 07, 2012	73.07	73.08	73.05	73.05	678,997	-0.02(-0.02%)
Mar 06, 2012	73.08	73.08	73.07	73.07	2,636,349	+0.00(+0.00%)
Mar 05, 2012	73.06	73.07	73.05	73.07	1,346,889	+0.00(+0.00%)
Mar 02, 2012	73.06	73.08	73.06	73.07	1,056,123	+0.02(+0.02%)

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