Date	Open	High	Low	Close	Volume	Change (%)
May 24, 2011	79.66	79.76	79.62	79.73	778,407	+0.03(+0.04%)
May 23, 2011	79.78	79.81	79.69	79.70	1,080,301	+0.07(+0.08%)
May 20, 2011	79.59	79.67	79.57	79.63	1,260,956	+0.07(+0.09%)
May 19, 2011	79.40	79.60	79.37	79.55	850,207	-0.06(-0.07%)
May 18, 2011	79.71	79.75	79.56	79.61	831,132	-0.13(-0.16%)
May 17, 2011	79.72	79.79	79.68	79.74	918,280	+0.09(+0.11%)
May 16, 2011	79.49	79.69	79.47	79.65	910,987	+0.17(+0.22%)
May 13, 2011	79.44	79.63	79.41	79.48	420,321	+0.13(+0.16%)
May 12, 2011	79.43	79.49	79.29	79.35	1,030,647	-0.12(-0.15%)
May 11, 2011	79.26	79.49	79.26	79.47	724,065	+0.14(+0.18%)
May 10, 2011	79.38	79.44	79.29	79.33	720,256	-0.14(-0.18%)
May 09, 2011	79.41	79.50	79.41	79.47	674,745	+0.09(+0.11%)
May 06, 2011	79.31	79.51	79.21	79.38	1,371,868	-0.01(-0.01%)
May 05, 2011	79.24	79.42	79.24	79.39	1,075,735	+0.18(+0.23%)
May 04, 2011	79.06	79.22	79.06	79.21	885,657	+0.15(+0.19%)
May 03, 2011	79.09	79.14	79.00	79.06	653,258	+0.02(+0.03%)
May 02, 2011	79.05	79.07	79.03	79.04	824,301	+0.04(+0.05%)
Apr 29, 2011	78.84	79.02	78.84	79.00	672,664	+0.07(+0.08%)
Apr 28, 2011	78.87	78.95	78.78	78.93	772,308	+0.19(+0.24%)
Apr 27, 2011	78.67	78.77	78.56	78.75	637,760	-0.07(-0.08%)
Apr 26, 2011	78.59	78.81	78.59	78.81	767,730	+0.29(+0.37%)
Apr 25, 2011	78.46	78.60	78.44	78.52	729,870	+0.04(+0.06%)
Apr 21, 2011	78.44	78.53	78.41	78.48	603,351	+0.05(+0.07%)
Apr 20, 2011	78.47	78.53	78.39	78.43	523,917	-0.11(-0.14%)
Apr 19, 2011	78.52	78.57	78.47	78.54	634,393	+0.16(+0.20%)
Apr 18, 2011	78.28	78.48	78.23	78.38	970,779	+0.13(+0.17%)
Apr 15, 2011	78.15	78.29	78.15	78.25	526,981	+0.28(+0.36%)
Apr 14, 2011	78.06	78.11	77.96	77.97	881,411	-0.07(-0.10%)
Apr 13, 2011	77.83	78.09	77.83	78.04	716,195	+0.08(+0.10%)
Apr 12, 2011	77.79	78.00	77.79	77.96	758,635	+0.30(+0.38%)
Apr 11, 2011	77.62	77.73	77.58	77.66	521,442	+0.07(+0.10%)
Apr 08, 2011	77.63	77.69	77.57	77.59	529,409	-0.15(-0.19%)
Apr 07, 2011	77.69	77.86	77.66	77.74	918,628	+0.12(+0.15%)
Apr 06, 2011	77.84	77.85	77.62	77.62	1,321,165	-0.23(-0.30%)
Apr 05, 2011	77.98	78.00	77.80	77.85	1,080,619	-0.16(-0.21%)
Apr 04, 2011	77.94	78.10	77.93	78.01	697,272	+0.13(+0.16%)
Apr 01, 2011	77.70	77.94	77.68	77.89	1,325,627	+0.11(+0.14%)
Mar 31, 2011	77.96	77.98	77.78	77.78	1,371,054	-0.09(-0.11%)
Mar 30, 2011	77.87	77.87	77.87	77.87	1,069,802	+0.13(+0.17%)
Mar 29, 2011	77.77	77.91	77.71	77.74	727,286	-0.10(-0.12%)
Mar 28, 2011	77.78	77.88	77.74	77.83	1,951,122	-0.04(-0.05%)
Mar 25, 2011	78.08	78.08	77.82	77.87	1,096,444	-0.07(-0.09%)
Mar 24, 2011	78.02	78.08	77.89	77.93	2,122,002	-0.21(-0.27%)
Mar 23, 2011	78.30	78.31	78.11	78.15	638,262	-0.04(-0.05%)
Mar 22, 2011	78.10	78.22	78.08	78.19	817,410	+0.01(+0.01%)
Mar 21, 2011	78.17	78.26	78.15	78.18	622,872	-0.19(-0.24%)
Mar 18, 2011	78.28	78.39	78.22	78.36	517,439	-0.03(-0.04%)
Mar 17, 2011	78.33	78.48	78.23	78.39	790,373	-0.18(-0.24%)
Mar 16, 2011	78.39	78.82	78.32	78.58	1,368,062	+0.36(+0.45%)
Mar 15, 2011	78.37	78.39	78.21	78.22	909,004	+0.03(+0.04%)
Mar 14, 2011	78.29	78.41	78.19	78.19	562,131	+0.04(+0.06%)
Mar 11, 2011	78.16	78.23	78.06	78.15	640,344	+0.01(+0.02%)
Mar 10, 2011	77.99	78.17	77.89	78.13	632,416	+0.27(+0.35%)
Mar 09, 2011	77.72	77.96	77.65	77.86	798,261	+0.19(+0.24%)
Mar 08, 2011	77.74	77.74	77.61	77.68	712,578	-0.06(-0.08%)
Mar 07, 2011	77.64	77.85	77.54	77.74	839,512	+0.04(+0.05%)
Mar 04, 2011	77.60	77.76	77.57	77.70	1,029,439	+0.21(+0.27%)
Mar 03, 2011	77.62	77.62	77.45	77.49	836,227	-0.27(-0.35%)
Mar 02, 2011	77.91	77.97	77.75	77.76	684,195	-0.13(-0.16%)

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