Date	Open	High	Low	Close	Volume	Change (%)
Apr 29, 2011	78.22	78.33	78.13	78.32	187,820	+0.12(+0.15%)
Apr 28, 2011	78.11	78.25	78.11	78.20	154,780	+0.09(+0.11%)
Apr 27, 2011	78.01	78.11	77.96	78.11	96,808	-0.01(-0.02%)
Apr 26, 2011	78.06	78.13	77.97	78.13	155,724	+0.13(+0.16%)
Apr 25, 2011	77.92	78.02	77.92	78.00	150,036	+0.24(+0.30%)
Apr 21, 2011	77.80	77.93	77.77	77.77	107,669	-0.10(-0.12%)
Apr 20, 2011	77.88	77.96	77.78	77.86	142,189	-0.08(-0.10%)
Apr 19, 2011	77.91	77.96	77.91	77.94	95,856	+0.14(+0.18%)
Apr 18, 2011	77.75	77.93	77.68	77.80	122,143	+0.13(+0.17%)
Apr 15, 2011	77.56	77.70	77.56	77.67	132,903	+0.20(+0.26%)
Apr 14, 2011	77.60	77.60	77.43	77.47	159,294	-0.01(-0.02%)
Apr 13, 2011	77.35	77.49	77.30	77.49	137,838	+0.08(+0.10%)
Apr 12, 2011	77.31	77.41	77.27	77.41	116,344	+0.24(+0.32%)
Apr 11, 2011	77.19	77.25	77.11	77.16	126,771	+0.04(+0.05%)
Apr 08, 2011	77.10	77.19	77.04	77.13	153,581	+0.05(+0.07%)
Apr 07, 2011	77.25	77.25	77.05	77.07	204,042	-0.10(-0.12%)
Apr 06, 2011	77.19	77.28	77.12	77.17	622,615	-0.06(-0.08%)
Apr 05, 2011	77.30	77.38	77.18	77.23	114,465	-0.15(-0.20%)
Apr 04, 2011	77.47	77.58	77.38	77.38	630,545	-0.04(-0.06%)
Apr 01, 2011	77.26	77.46	77.21	77.43	1,088,118	+0.04(+0.05%)
Mar 31, 2011	77.52	77.54	77.36	77.39	173,095	-0.07(-0.09%)
Mar 30, 2011	77.33	77.48	77.26	77.46	198,140	+0.18(+0.24%)
Mar 29, 2011	77.31	77.43	77.23	77.27	127,133	-0.08(-0.10%)
Mar 28, 2011	77.29	77.42	77.27	77.36	701,310	+0.01(+0.01%)
Mar 25, 2011	77.44	77.52	77.27	77.35	137,632	-0.04(-0.06%)
Mar 24, 2011	77.44	77.48	77.36	77.39	124,803	-0.14(-0.18%)
Mar 23, 2011	77.52	77.65	77.44	77.53	105,690	+0.06(+0.08%)
Mar 22, 2011	77.37	77.53	77.27	77.47	108,180	-0.04(-0.06%)
Mar 21, 2011	77.52	77.60	77.47	77.52	163,441	-0.24(-0.30%)
Mar 18, 2011	77.68	77.77	77.61	77.75	97,354	+0.06(+0.08%)
Mar 17, 2011	77.78	77.88	77.68	77.69	398,939	-0.29(-0.38%)
Mar 16, 2011	77.75	78.10	77.71	77.99	584,989	+0.29(+0.38%)
Mar 15, 2011	77.80	77.80	77.66	77.69	149,064	+0.00(+0.00%)
Mar 14, 2011	77.61	77.75	77.61	77.69	172,296	+0.17(+0.22%)
Mar 11, 2011	77.62	77.62	77.46	77.52	197,947	+0.04(+0.05%)
Mar 10, 2011	77.31	77.52	77.31	77.49	133,837	+0.21(+0.27%)
Mar 09, 2011	77.19	77.32	77.11	77.28	173,571	+0.12(+0.16%)
Mar 08, 2011	77.24	77.26	77.12	77.16	172,808	-0.05(-0.07%)
Mar 07, 2011	77.05	77.31	77.02	77.21	303,199	+0.04(+0.05%)
Mar 04, 2011	76.98	77.18	76.93	77.17	166,119	+0.21(+0.28%)
Mar 03, 2011	77.08	77.09	76.92	76.95	125,402	-0.28(-0.36%)
Mar 02, 2011	77.31	77.33	77.19	77.23	158,045	-0.01(-0.01%)
Mar 01, 2011	77.07	77.30	77.07	77.24	99,958	+0.06(+0.07%)
Feb 28, 2011	77.20	77.29	77.18	77.18	282,051	-0.01(-0.01%)
Feb 25, 2011	77.23	77.27	77.14	77.19	209,227	+0.05(+0.07%)
Feb 24, 2011	76.98	77.20	76.98	77.14	119,981	+0.21(+0.27%)
Feb 23, 2011	77.07	77.11	76.88	76.93	169,117	-0.10(-0.12%)
Feb 22, 2011	76.85	77.05	76.78	77.03	438,891	+0.26(+0.34%)
Feb 18, 2011	76.68	76.77	76.52	76.77	156,930	+0.06(+0.08%)
Feb 17, 2011	76.79	76.83	76.66	76.71	137,685	+0.10(+0.13%)
Feb 16, 2011	76.74	76.74	76.55	76.60	176,233	-0.05(-0.07%)
Feb 15, 2011	76.49	76.66	76.38	76.66	163,128	+0.23(+0.31%)
Feb 14, 2011	76.37	76.53	76.34	76.42	289,998	+0.15(+0.19%)
Feb 11, 2011	76.22	76.27	76.05	76.27	268,597	+0.35(+0.46%)
Feb 10, 2011	75.90	76.16	75.90	75.92	150,627	-0.07(-0.09%)
Feb 09, 2011	76.22	76.22	75.95	75.99	192,985	+0.04(+0.06%)
Feb 08, 2011	76.37	76.37	75.94	75.94	211,938	-0.29(-0.38%)
Feb 07, 2011	76.30	76.30	76.17	76.24	338,138	-0.15(-0.20%)
Feb 04, 2011	76.60	76.70	76.25	76.39	276,452	-0.14(-0.18%)
Feb 03, 2011	76.78	76.80	76.53	76.53	257,793	-0.28(-0.36%)
Feb 02, 2011	77.07	77.07	76.77	76.81	150,303	-0.03(-0.04%)

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