Date	Open	High	Low	Close	Volume	Change (%)
May 24, 2011	80.70	80.81	80.66	80.77	768,344	+0.03(+0.04%)
May 23, 2011	80.82	80.85	80.73	80.74	1,066,335	+0.07(+0.08%)
May 20, 2011	80.63	80.71	80.61	80.67	1,244,655	+0.08(+0.09%)
May 19, 2011	80.44	80.64	80.41	80.60	839,216	-0.06(-0.07%)
May 18, 2011	80.75	80.79	80.60	80.66	820,387	-0.13(-0.16%)
May 17, 2011	80.76	80.84	80.73	80.78	906,409	+0.09(+0.11%)
May 16, 2011	80.53	80.73	80.51	80.69	899,210	+0.17(+0.22%)
May 13, 2011	80.48	80.67	80.45	80.52	414,888	+0.13(+0.16%)
May 12, 2011	80.47	80.54	80.32	80.39	1,017,324	-0.12(-0.15%)
May 11, 2011	80.30	80.54	80.30	80.51	714,704	+0.14(+0.18%)
May 10, 2011	80.42	80.48	80.33	80.37	710,945	-0.14(-0.18%)
May 09, 2011	80.45	80.54	80.45	80.51	666,022	+0.09(+0.11%)
May 06, 2011	80.35	80.55	80.25	80.42	1,354,133	-0.01(-0.01%)
May 05, 2011	80.28	80.46	80.28	80.43	1,061,828	+0.18(+0.23%)
May 04, 2011	80.09	80.26	80.09	80.25	874,208	+0.15(+0.19%)
May 03, 2011	80.12	80.18	80.04	80.10	644,813	+0.02(+0.03%)
May 02, 2011	80.08	80.11	80.06	80.08	813,645	+0.04(+0.05%)
Apr 29, 2011	79.87	80.06	79.87	80.03	663,968	+0.07(+0.08%)
Apr 28, 2011	79.90	79.98	79.81	79.97	762,324	+0.19(+0.24%)
Apr 27, 2011	79.70	79.80	79.59	79.78	629,515	-0.07(-0.08%)
Apr 26, 2011	79.62	79.85	79.62	79.85	757,805	+0.29(+0.37%)
Apr 25, 2011	79.48	79.63	79.46	79.55	720,435	+0.05(+0.06%)
Apr 21, 2011	79.46	79.56	79.44	79.51	595,551	+0.05(+0.07%)
Apr 20, 2011	79.50	79.56	79.42	79.45	517,145	-0.11(-0.14%)
Apr 19, 2011	79.55	79.60	79.50	79.57	626,192	+0.16(+0.20%)
Apr 18, 2011	79.30	79.50	79.26	79.41	958,229	+0.14(+0.17%)
Apr 15, 2011	79.17	79.32	79.17	79.27	520,168	+0.29(+0.36%)
Apr 14, 2011	79.08	79.13	78.98	78.99	870,016	-0.08(-0.10%)
Apr 13, 2011	78.85	79.11	78.85	79.06	706,936	+0.08(+0.10%)
Apr 12, 2011	78.81	79.02	78.81	78.98	748,828	+0.30(+0.38%)
Apr 11, 2011	78.64	78.75	78.60	78.68	514,701	+0.08(+0.10%)
Apr 08, 2011	78.65	78.70	78.58	78.61	522,565	-0.15(-0.19%)
Apr 07, 2011	78.70	78.88	78.68	78.76	906,752	+0.12(+0.15%)
Apr 06, 2011	78.86	78.87	78.64	78.64	1,304,086	-0.23(-0.30%)
Apr 05, 2011	79.00	79.02	78.82	78.87	1,066,649	-0.17(-0.21%)
Apr 04, 2011	78.96	79.12	78.95	79.03	688,258	+0.13(+0.16%)
Apr 01, 2011	78.72	78.96	78.70	78.91	1,308,490	+0.11(+0.14%)
Mar 31, 2011	78.98	79.00	78.80	78.80	1,353,329	-0.09(-0.11%)
Mar 30, 2011	78.89	78.89	78.89	78.89	1,055,971	+0.13(+0.17%)
Mar 29, 2011	78.79	78.93	78.72	78.75	717,884	-0.10(-0.12%)
Mar 28, 2011	78.80	78.90	78.76	78.85	1,925,897	-0.04(-0.05%)
Mar 25, 2011	79.10	79.10	78.84	78.89	1,082,269	-0.07(-0.09%)
Mar 24, 2011	79.05	79.10	78.91	78.96	2,094,568	-0.22(-0.27%)
Mar 23, 2011	79.32	79.34	79.13	79.17	630,010	-0.04(-0.05%)
Mar 22, 2011	79.12	79.25	79.11	79.21	806,842	+0.01(+0.01%)
Mar 21, 2011	79.20	79.29	79.17	79.20	614,820	-0.19(-0.24%)
Mar 18, 2011	79.31	79.42	79.25	79.39	510,749	-0.03(-0.04%)
Mar 17, 2011	79.35	79.51	79.26	79.42	780,155	-0.19(-0.24%)
Mar 16, 2011	79.42	79.86	79.35	79.61	1,350,375	+0.36(+0.45%)
Mar 15, 2011	79.40	79.42	79.23	79.25	897,252	+0.03(+0.04%)
Mar 14, 2011	79.32	79.44	79.22	79.22	554,863	+0.05(+0.06%)
Mar 11, 2011	79.18	79.26	79.08	79.17	632,065	+0.02(+0.02%)
Mar 10, 2011	79.01	79.20	78.91	79.16	624,240	+0.28(+0.35%)
Mar 09, 2011	78.74	78.98	78.67	78.88	787,941	+0.19(+0.24%)
Mar 08, 2011	78.75	78.75	78.63	78.69	703,366	-0.06(-0.08%)
Mar 07, 2011	78.66	78.87	78.56	78.75	828,658	+0.04(+0.05%)
Mar 04, 2011	78.62	78.78	78.59	78.72	1,016,130	+0.21(+0.27%)
Mar 03, 2011	78.63	78.64	78.46	78.51	825,416	-0.28(-0.35%)
Mar 02, 2011	78.93	78.99	78.77	78.78	675,349	-0.13(-0.16%)

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