Date	Open	High	Low	Close	Volume	Change (%)
Sep 30, 2011	81.59	81.70	81.59	81.70	340,417	+0.03(+0.04%)
Sep 29, 2011	81.59	81.69	81.59	81.67	127,215	+0.10(+0.12%)
Sep 28, 2011	81.69	81.69	81.57	81.57	199,063	-0.12(-0.15%)
Sep 27, 2011	81.61	81.70	81.61	81.70	121,848	+0.01(+0.01%)
Sep 26, 2011	81.65	81.70	81.61	81.69	171,051	+0.05(+0.06%)
Sep 23, 2011	81.70	81.72	81.62	81.64	210,363	-0.07(-0.08%)
Sep 22, 2011	81.87	81.87	81.70	81.70	294,351	-0.22(-0.27%)
Sep 21, 2011	81.93	81.94	81.87	81.92	246,364	-0.02(-0.03%)
Sep 20, 2011	81.93	81.95	81.91	81.95	157,760	+0.02(+0.02%)
Sep 19, 2011	81.96	81.96	81.90	81.93	367,804	-0.02(-0.03%)
Sep 16, 2011	81.92	81.96	81.92	81.96	115,824	-0.01(-0.01%)
Sep 15, 2011	81.94	81.97	81.93	81.96	225,159	-0.01(-0.01%)
Sep 14, 2011	81.95	81.98	81.95	81.97	202,286	+0.01(+0.01%)
Sep 13, 2011	81.92	81.96	81.92	81.96	382,140	+0.01(+0.01%)
Sep 12, 2011	81.92	81.97	81.92	81.96	236,385	+0.00(+0.01%)
Sep 09, 2011	81.97	82.00	81.92	81.95	305,382	-0.02(-0.02%)
Sep 08, 2011	82.00	82.01	81.97	81.97	151,355	-0.02(-0.02%)
Sep 07, 2011	81.96	82.00	81.93	81.99	177,584	+0.06(+0.07%)
Sep 06, 2011	81.99	81.99	81.91	81.93	135,938	-0.04(-0.05%)
Sep 02, 2011	82.00	82.01	81.97	81.97	294,015	-0.03(-0.04%)
Sep 01, 2011	81.95	82.01	81.95	82.00	99,850	+0.07(+0.08%)
Aug 31, 2011	81.93	81.94	81.89	81.94	243,183	-0.01(-0.01%)
Aug 30, 2011	81.95	81.97	81.93	81.95	127,107	-0.02(-0.02%)
Aug 29, 2011	81.97	81.99	81.93	81.96	153,580	-0.01(-0.01%)
Aug 26, 2011	81.96	81.97	81.93	81.97	137,083	-0.01(-0.01%)
Aug 25, 2011	81.98	82.00	81.95	81.98	192,443	+0.02(+0.03%)
Aug 24, 2011	81.93	81.98	81.92	81.96	493,741	+0.02(+0.02%)
Aug 23, 2011	82.00	82.06	81.93	81.94	336,148	-0.11(-0.14%)
Aug 22, 2011	82.04	82.05	81.99	82.05	678,495	-0.02(-0.03%)
Aug 19, 2011	82.02	82.08	82.01	82.08	126,657	+0.00(+0.00%)
Aug 18, 2011	82.08	82.10	82.05	82.08	180,151	-0.04(-0.05%)
Aug 17, 2011	82.09	82.13	82.05	82.12	81,363	+0.01(+0.02%)
Aug 16, 2011	82.13	82.13	82.09	82.11	125,725	-0.02(-0.03%)
Aug 15, 2011	82.12	82.13	82.09	82.13	256,498	-0.06(-0.07%)
Aug 12, 2011	82.13	82.18	82.09	82.18	168,796	-0.02(-0.03%)
Aug 11, 2011	82.13	82.22	82.05	82.21	335,241	+0.10(+0.12%)
Aug 10, 2011	82.22	82.27	82.09	82.11	363,518	-0.13(-0.16%)
Aug 09, 2011	82.19	82.28	82.13	82.24	130,005	+0.06(+0.08%)
Aug 08, 2011	82.19	82.25	82.17	82.18	251,199	-0.06(-0.07%)
Aug 05, 2011	82.28	82.31	82.22	82.23	209,338	-0.08(-0.10%)
Aug 04, 2011	82.30	82.33	82.27	82.31	432,891	+0.00(+0.00%)
Aug 03, 2011	82.24	82.32	82.24	82.31	538,337	+0.07(+0.09%)
Aug 02, 2011	82.24	82.28	82.23	82.24	206,278	-0.01(-0.01%)
Aug 01, 2011	82.22	82.26	82.22	82.25	164,639	+0.05(+0.06%)
Jul 29, 2011	82.23	82.25	82.13	82.20	195,062	-0.02(-0.03%)
Jul 28, 2011	82.24	82.25	82.22	82.22	143,058	+0.01(+0.01%)
Jul 27, 2011	82.27	82.28	82.22	82.22	175,750	-0.08(-0.10%)
Jul 26, 2011	82.27	82.30	82.24	82.30	270,322	+0.02(+0.03%)
Jul 25, 2011	82.24	82.27	82.23	82.27	138,999	+0.01(+0.01%)
Jul 22, 2011	82.26	82.27	82.25	82.27	91,375	+0.01(+0.01%)
Jul 21, 2011	82.26	82.27	82.22	82.26	117,055	-0.01(-0.01%)
Jul 20, 2011	82.23	82.28	82.23	82.27	108,264	-0.02(-0.02%)
Jul 19, 2011	82.26	82.28	82.22	82.28	190,873	-0.01(-0.01%)
Jul 18, 2011	82.29	82.30	82.25	82.29	172,800	+0.06(+0.07%)
Jul 15, 2011	82.27	82.28	82.23	82.23	151,714	-0.02(-0.02%)
Jul 14, 2011	82.29	82.30	82.24	82.25	118,186	-0.04(-0.05%)
Jul 13, 2011	82.26	82.30	82.26	82.29	404,910	-0.02(-0.02%)
Jul 12, 2011	82.29	82.31	82.27	82.31	169,997	+0.02(+0.02%)
Jul 11, 2011	82.27	82.31	82.27	82.29	134,746	+0.01(+0.01%)
Jul 08, 2011	82.30	82.31	82.27	82.28	151,127	+0.02(+0.03%)
Jul 07, 2011	82.27	82.27	82.24	82.26	85,538	-0.04(-0.05%)
Jul 06, 2011	82.29	82.30	82.26	82.30	217,960	+0.01(+0.01%)
Jul 05, 2011	82.24	82.29	82.24	82.29	162,904	+0.03(+0.04%)

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