Date	Open	High	Low	Close	Volume	Change (%)
Apr 29, 2011	78.71	79.34	78.53	79.30	602,159	+0.54(+0.69%)
Apr 28, 2011	80.44	80.89	78.56	78.76	371,306	-1.65(-2.05%)
Apr 27, 2011	80.09	80.53	79.91	80.41	257,720	+0.31(+0.39%)
Apr 26, 2011	79.58	80.18	79.54	80.10	306,091	+0.80(+1.01%)
Apr 25, 2011	79.90	80.07	79.22	79.30	213,036	-0.82(-1.02%)
Apr 21, 2011	79.94	80.13	79.73	80.12	183,228	+0.47(+0.59%)
Apr 20, 2011	79.20	79.77	79.20	79.65	398,722	+1.25(+1.60%)
Apr 19, 2011	78.09	78.60	77.90	78.40	324,800	+0.32(+0.41%)
Apr 18, 2011	77.92	78.19	76.69	78.08	243,103	-0.53(-0.68%)
Apr 15, 2011	78.57	78.68	78.19	78.61	272,052	+0.24(+0.31%)
Apr 14, 2011	77.96	78.67	77.75	78.37	342,820	+0.04(+0.05%)
Apr 13, 2011	78.57	78.74	78.05	78.33	273,074	+0.04(+0.05%)
Apr 12, 2011	77.50	78.44	77.45	78.29	592,126	+0.08(+0.10%)
Apr 11, 2011	77.97	78.52	77.83	78.21	292,424	+0.31(+0.40%)
Apr 08, 2011	78.42	78.76	77.50	77.90	146,185	-0.32(-0.41%)
Apr 07, 2011	78.85	78.88	78.06	78.22	131,993	-0.84(-1.06%)
Apr 06, 2011	79.05	79.07	78.65	79.06	451,437	+0.47(+0.60%)
Apr 05, 2011	78.51	78.75	78.24	78.59	228,938	-0.23(-0.29%)
Apr 04, 2011	78.08	78.82	77.97	78.82	236,490	+0.74(+0.95%)
Apr 01, 2011	77.91	78.20	77.38	78.08	188,982	+0.65(+0.84%)
Mar 31, 2011	77.02	77.56	77.02	77.43	241,907	+0.41(+0.53%)
Mar 30, 2011	76.77	77.07	76.48	77.03	127,540	+0.53(+0.69%)
Mar 29, 2011	76.04	76.49	75.86	76.49	180,477	+0.37(+0.48%)
Mar 28, 2011	76.73	76.99	76.13	76.13	93,577	-0.38(-0.49%)
Mar 25, 2011	76.17	76.79	75.93	76.50	203,067	+0.32(+0.42%)
Mar 24, 2011	76.66	76.73	75.81	76.19	175,484	-0.20(-0.27%)
Mar 23, 2011	76.53	76.65	75.97	76.39	188,075	-0.33(-0.43%)
Mar 22, 2011	76.31	76.78	76.17	76.72	335,434	+0.33(+0.43%)
Mar 21, 2011	76.48	76.61	76.35	76.39	204,356	+1.27(+1.70%)
Mar 18, 2011	74.79	75.18	74.55	75.11	465,548	+0.74(+1.00%)
Mar 17, 2011	75.09	75.48	74.26	74.37	315,409	+0.09(+0.12%)
Mar 16, 2011	75.12	75.49	74.22	74.28	376,884	-1.08(-1.43%)
Mar 15, 2011	75.11	75.68	75.06	75.37	346,370	-0.87(-1.14%)
Mar 14, 2011	76.26	76.71	76.04	76.23	542,167	-0.55(-0.72%)
Mar 11, 2011	75.51	76.93	75.50	76.78	245,933	+0.79(+1.04%)
Mar 10, 2011	76.61	76.88	75.89	75.99	240,214	-1.52(-1.95%)
Mar 09, 2011	77.05	77.67	76.83	77.51	386,565	+0.12(+0.15%)
Mar 08, 2011	76.76	77.85	76.68	77.39	327,198	+0.66(+0.86%)
Mar 07, 2011	77.21	77.83	76.19	76.74	304,533	-0.34(-0.44%)
Mar 04, 2011	77.40	77.80	76.81	77.07	339,213	-0.45(-0.58%)
Mar 03, 2011	77.31	77.58	76.79	77.53	502,985	+0.97(+1.27%)
Mar 02, 2011	76.99	76.99	76.24	76.55	381,204	-0.45(-0.59%)
Mar 01, 2011	78.26	78.26	77.01	77.01	391,219	-0.97(-1.24%)
Feb 28, 2011	78.38	78.38	77.70	77.97	472,764	+0.00(+0.00%)
Feb 25, 2011	78.19	78.50	77.88	77.97	406,506	-0.05(-0.06%)
Feb 24, 2011	77.99	78.93	77.51	78.02	306,987	-0.31(-0.39%)
Feb 23, 2011	80.29	80.39	77.92	78.33	366,523	-1.91(-2.38%)
Feb 22, 2011	81.44	81.44	79.83	80.24	297,597	-1.81(-2.21%)
Feb 18, 2011	81.62	82.21	81.34	82.05	236,102	+0.29(+0.35%)
Feb 17, 2011	81.96	81.96	81.40	81.76	186,434	-0.27(-0.33%)
Feb 16, 2011	82.27	82.58	81.32	82.03	226,244	-0.08(-0.09%)
Feb 15, 2011	82.44	82.44	81.62	82.11	260,026	-0.58(-0.70%)
Feb 14, 2011	82.66	82.88	82.40	82.69	221,148	+0.12(+0.14%)
Feb 11, 2011	81.86	82.62	81.76	82.57	156,080	+0.39(+0.47%)
Feb 10, 2011	81.90	82.19	81.33	82.19	167,349	+0.05(+0.06%)
Feb 09, 2011	81.26	82.30	81.17	82.14	348,127	+0.61(+0.75%)
Feb 08, 2011	82.63	82.82	81.24	81.53	366,508	-1.05(-1.27%)
Feb 07, 2011	82.40	82.84	82.27	82.58	196,837	+0.21(+0.26%)
Feb 04, 2011	82.63	82.75	81.93	82.37	255,023	-0.16(-0.20%)
Feb 03, 2011	82.19	83.16	81.59	82.54	445,140	+0.06(+0.07%)
Feb 02, 2011	82.63	83.47	82.40	82.48	293,938	-0.48(-0.58%)

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