Date	Open	High	Low	Close	Volume	Change (%)
Dec 30, 2011	73.30	73.33	73.29	73.33	2,700,599	+0.04(+0.06%)
Dec 29, 2011	73.27	73.30	73.27	73.29	1,740,895	+0.01(+0.01%)
Dec 28, 2011	73.25	73.29	73.25	73.28	2,872,826	+0.02(+0.02%)
Dec 27, 2011	73.25	73.26	73.25	73.26	770,842	-0.03(-0.04%)
Dec 23, 2011	73.26	73.29	73.25	73.29	1,186,189	+0.01(+0.01%)
Dec 21, 2011	73.29	73.30	73.26	73.28	1,389,475	-0.03(-0.04%)
Dec 20, 2011	73.32	73.32	73.29	73.31	1,785,855	-0.02(-0.02%)
Dec 19, 2011	73.33	73.33	73.31	73.33	1,779,935	-0.01(-0.01%)
Dec 16, 2011	73.33	73.33	73.31	73.33	2,686,760	+0.03(+0.05%)
Dec 15, 2011	73.32	73.32	73.29	73.30	3,310,820	-0.01(-0.01%)
Dec 14, 2011	73.29	73.32	73.29	73.31	2,531,697	-0.02(-0.02%)
Dec 13, 2011	73.32	73.33	73.31	73.33	963,788	+0.00(+0.00%)
Dec 12, 2011	73.32	73.33	73.32	73.33	2,018,335	+0.00(+0.00%)
Dec 09, 2011	73.33	73.33	73.32	73.33	1,990,400	+0.00(+0.00%)
Dec 08, 2011	73.33	73.33	73.31	73.33	2,417,510	+0.01(+0.01%)
Dec 07, 2011	73.29	73.32	73.29	73.32	1,533,197	+0.03(+0.04%)
Dec 06, 2011	73.28	73.30	73.27	73.29	942,189	+0.00(+0.00%)
Dec 05, 2011	73.28	73.30	73.27	73.29	1,563,851	+0.01(+0.01%)
Dec 02, 2011	73.29	73.29	73.26	73.28	2,052,242	-0.02(-0.02%)
Dec 01, 2011	73.30	73.30	73.26	73.30	7,703,505	+0.00(+0.01%)
Nov 30, 2011	73.27	73.29	73.26	73.29	1,714,210	+0.00(+0.00%)
Nov 29, 2011	73.28	73.29	73.27	73.29	1,952,970	+0.01(+0.01%)
Nov 28, 2011	73.24	73.29	73.24	73.29	1,395,777	+0.01(+0.01%)
Nov 25, 2011	73.28	73.28	73.26	73.28	639,767	+0.00(+0.00%)
Nov 23, 2011	73.25	73.29	73.25	73.28	1,695,692	+0.01(+0.01%)
Nov 22, 2011	73.28	73.28	73.25	73.27	3,312,490	+0.01(+0.01%)
Nov 21, 2011	73.26	73.26	73.24	73.26	1,559,508	+0.01(+0.01%)
Nov 18, 2011	73.26	73.27	73.24	73.25	1,734,739	-0.03(-0.04%)
Nov 17, 2011	73.26	73.28	73.25	73.28	2,019,831	+0.01(+0.01%)
Nov 16, 2011	73.29	73.29	73.27	73.27	1,128,371	-0.02(-0.02%)
Nov 15, 2011	73.29	73.30	73.28	73.29	909,110	-0.01(-0.01%)
Nov 14, 2011	73.27	73.32	73.27	73.29	3,041,660	+0.03(+0.05%)
Nov 11, 2011	73.28	73.29	73.26	73.26	1,166,931	-0.03(-0.05%)
Nov 10, 2011	73.29	73.30	73.28	73.29	4,242,074	+0.01(+0.01%)
Nov 09, 2011	73.28	73.30	73.28	73.29	1,331,999	+0.02(+0.02%)
Nov 08, 2011	73.27	73.29	73.27	73.27	820,383	-0.01(-0.01%)
Nov 07, 2011	73.29	73.31	73.28	73.28	1,248,475	-0.02(-0.02%)
Nov 04, 2011	73.28	73.30	73.28	73.29	713,533	+0.00(+0.00%)
Nov 03, 2011	73.29	73.29	73.28	73.29	1,799,005	+0.01(+0.01%)
Nov 02, 2011	73.28	73.30	73.28	73.29	2,149,450	+0.02(+0.02%)
Nov 01, 2011	73.29	73.29	73.26	73.27	6,548,603	+0.01(+0.01%)
Oct 31, 2011	73.23	73.26	73.23	73.26	1,587,991	+0.07(+0.09%)
Oct 28, 2011	73.18	73.20	73.15	73.19	2,326,584	+0.03(+0.05%)
Oct 27, 2011	73.20	73.20	73.15	73.16	1,757,194	-0.05(-0.07%)
Oct 26, 2011	73.22	73.23	73.20	73.21	1,235,234	-0.04(-0.06%)
Oct 25, 2011	73.21	73.25	73.19	73.25	4,156,701	+0.04(+0.06%)
Oct 24, 2011	73.21	73.21	73.19	73.21	2,010,677	+0.00(+0.00%)
Oct 21, 2011	73.23	73.23	73.20	73.21	1,646,334	-0.03(-0.04%)
Oct 20, 2011	73.21	73.24	73.20	73.24	2,545,894	+0.01(+0.01%)
Oct 19, 2011	73.19	73.23	73.19	73.23	2,293,510	+0.03(+0.04%)
Oct 18, 2011	73.20	73.22	73.19	73.20	1,604,077	+0.00(+0.00%)
Oct 17, 2011	73.19	73.21	73.18	73.20	963,347	+0.01(+0.01%)
Oct 14, 2011	73.16	73.20	73.16	73.19	1,265,497	+0.03(+0.05%)
Oct 13, 2011	73.18	73.19	73.16	73.16	3,142,324	+0.02(+0.02%)
Oct 12, 2011	73.11	73.14	73.11	73.14	3,623,949	+0.00(+0.00%)
Oct 11, 2011	73.13	73.15	73.12	73.14	1,093,979	+0.03(+0.05%)
Oct 10, 2011	73.19	73.19	73.09	73.11	1,768,308	-0.06(-0.08%)
Oct 07, 2011	73.18	73.19	73.13	73.17	2,602,764	-0.03(-0.04%)
Oct 06, 2011	73.19	73.21	73.19	73.19	1,409,632	-0.02(-0.02%)
Oct 05, 2011	73.22	73.22	73.19	73.21	2,001,803	+0.00(+0.00%)
Oct 04, 2011	73.24	73.25	73.21	73.21	4,659,187	-0.04(-0.06%)

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