Date	Open	High	Low	Close	Volume	Change (%)
May 24, 2011	82.49	82.53	82.43	82.53	17,517	+0.14(+0.18%)
May 23, 2011	82.48	82.48	82.37	82.39	92,789	-0.07(-0.09%)
May 20, 2011	82.49	82.49	82.42	82.46	66,410	+0.06(+0.08%)
May 19, 2011	82.40	82.47	82.38	82.40	41,122	-0.05(-0.06%)
May 18, 2011	82.49	82.49	82.41	82.45	24,598	+0.04(+0.05%)
May 17, 2011	82.33	82.41	82.29	82.41	196,225	-0.00(-0.00%)
May 16, 2011	82.53	82.53	82.39	82.41	54,654	-0.02(-0.02%)
May 13, 2011	82.40	82.45	82.37	82.42	32,628	+0.02(+0.02%)
May 12, 2011	82.50	82.51	82.36	82.41	25,617	-0.12(-0.15%)
May 11, 2011	82.69	82.70	82.53	82.53	48,675	-0.18(-0.22%)
May 10, 2011	82.70	82.75	82.70	82.71	45,335	-0.03(-0.03%)
May 09, 2011	82.68	82.74	82.67	82.74	13,538	+0.10(+0.12%)
May 06, 2011	82.54	82.73	82.54	82.65	11,753	+0.01(+0.01%)
May 05, 2011	82.75	82.77	82.64	82.64	10,277	-0.17(-0.20%)
May 04, 2011	82.82	82.87	82.81	82.81	13,938	-0.03(-0.03%)
May 03, 2011	82.87	82.89	82.83	82.83	32,633	-0.03(-0.03%)
May 02, 2011	82.86	82.86	82.86	82.86	40,748	-0.28(-0.34%)
Apr 29, 2011	83.08	83.14	83.01	83.14	13,400	+0.11(+0.13%)
Apr 28, 2011	83.02	83.09	83.00	83.04	19,239	+0.15(+0.18%)
Apr 27, 2011	82.76	82.89	82.69	82.89	10,293	+0.10(+0.12%)
Apr 26, 2011	82.69	82.79	82.68	82.79	8,743	+0.11(+0.14%)
Apr 25, 2011	82.63	82.68	82.61	82.68	42,717	+0.09(+0.11%)
Apr 21, 2011	82.60	82.61	82.52	82.59	8,331	-0.01(-0.01%)
Apr 20, 2011	82.61	82.63	82.56	82.60	10,120	-0.04(-0.05%)
Apr 19, 2011	82.53	82.64	82.52	82.64	29,733	+0.14(+0.18%)
Apr 18, 2011	82.42	82.55	82.42	82.49	15,562	+0.06(+0.08%)
Apr 15, 2011	82.36	82.45	82.36	82.43	49,696	+0.22(+0.27%)
Apr 14, 2011	82.36	82.37	82.20	82.20	9,044	-0.12(-0.15%)
Apr 13, 2011	82.25	82.35	82.24	82.33	9,859	+0.04(+0.04%)
Apr 12, 2011	82.25	82.30	82.20	82.29	9,495	+0.09(+0.11%)
Apr 11, 2011	82.23	82.25	82.20	82.20	18,959	+0.02(+0.02%)
Apr 08, 2011	82.13	82.25	82.12	82.18	15,848	+0.05(+0.06%)
Apr 07, 2011	82.07	82.13	82.03	82.13	8,939	+0.12(+0.15%)
Apr 06, 2011	82.06	82.06	82.00	82.01	9,701	-0.08(-0.10%)
Apr 05, 2011	82.12	82.12	82.04	82.09	16,826	-0.03(-0.03%)
Apr 04, 2011	82.11	82.16	82.06	82.12	6,303	+0.14(+0.18%)
Apr 01, 2011	81.81	81.97	81.79	81.97	7,113	-0.16(-0.19%)
Mar 31, 2011	82.23	82.23	82.13	82.13	6,645	-0.02(-0.02%)
Mar 30, 2011	82.09	82.15	82.08	82.15	2,567	+0.10(+0.13%)
Mar 29, 2011	82.12	82.12	82.02	82.04	5,163	-0.04(-0.05%)
Mar 28, 2011	82.06	82.11	82.02	82.08	16,203	-0.02(-0.03%)
Mar 25, 2011	82.29	82.29	82.06	82.11	6,615	-0.16(-0.20%)
Mar 24, 2011	82.33	82.34	82.25	82.27	21,801	-0.06(-0.07%)
Mar 23, 2011	82.41	82.41	82.30	82.33	16,069	-0.01(-0.01%)
Mar 22, 2011	82.33	82.33	82.33	82.33	748	-0.10(-0.13%)
Mar 21, 2011	82.46	82.49	82.43	82.44	3,314	-0.07(-0.09%)
Mar 18, 2011	82.54	82.61	82.47	82.51	6,600	-0.07(-0.09%)
Mar 17, 2011	82.49	82.58	82.49	82.58	11,363	+0.14(+0.18%)
Mar 16, 2011	82.32	82.45	82.32	82.44	6,621	+0.26(+0.31%)
Mar 15, 2011	82.21	82.24	82.18	82.18	9,662	-0.06(-0.07%)
Mar 14, 2011	82.26	82.31	82.23	82.24	26,516	+0.08(+0.10%)
Mar 11, 2011	82.16	82.16	82.09	82.16	63,042	-0.04(-0.05%)
Mar 10, 2011	82.08	82.20	82.02	82.20	9,176	+0.17(+0.21%)
Mar 09, 2011	82.05	82.05	81.97	82.03	15,632	+0.08(+0.10%)
Mar 08, 2011	81.94	82.00	81.91	81.95	19,859	+0.02(+0.03%)
Mar 07, 2011	81.82	81.96	81.82	81.92	18,670	+0.06(+0.07%)
Mar 04, 2011	81.74	81.87	81.74	81.87	20,312	+0.27(+0.32%)
Mar 03, 2011	81.63	81.65	81.59	81.60	6,687	-0.18(-0.22%)
Mar 02, 2011	81.76	81.86	81.76	81.78	17,029	+0.05(+0.06%)

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