Date	Open	High	Low	Close	Volume	Change (%)
Dec 30, 2011	81.08	81.19	80.97	80.98	1,495,310	-0.10(-0.13%)
Dec 29, 2011	80.97	81.12	80.85	81.08	1,341,602	+0.19(+0.24%)
Dec 28, 2011	80.78	80.96	80.73	80.89	1,189,590	+0.14(+0.17%)
Dec 27, 2011	80.57	80.75	80.55	80.75	1,484,743	+0.15(+0.18%)
Dec 23, 2011	80.56	80.65	80.38	80.60	925,597	+0.03(+0.04%)
Dec 21, 2011	80.76	80.80	80.54	80.57	1,266,486	-0.21(-0.25%)
Dec 20, 2011	80.82	80.92	80.75	80.78	3,785,247	-0.11(-0.14%)
Dec 19, 2011	80.81	80.94	80.74	80.89	1,530,228	+0.08(+0.10%)
Dec 16, 2011	80.68	80.86	80.65	80.81	1,609,606	+0.27(+0.34%)
Dec 15, 2011	80.67	80.75	80.47	80.54	5,133,148	-0.17(-0.21%)
Dec 14, 2011	80.51	80.80	80.57	80.71	1,264,424	+0.20(+0.25%)
Dec 13, 2011	80.35	80.61	80.32	80.51	1,999,199	+0.16(+0.20%)
Dec 12, 2011	80.38	80.50	80.34	80.35	1,662,657	+0.02(+0.03%)
Dec 09, 2011	80.35	80.46	80.23	80.32	1,273,155	-0.04(-0.05%)
Dec 08, 2011	80.26	80.46	80.23	80.37	1,673,466	+0.08(+0.10%)
Dec 07, 2011	80.20	80.35	80.08	80.29	940,993	+0.15(+0.18%)
Dec 06, 2011	80.12	80.19	79.93	80.14	1,505,212	-0.07(-0.09%)
Dec 05, 2011	80.03	80.21	79.96	80.21	1,448,613	+0.09(+0.11%)
Dec 02, 2011	79.90	80.19	79.86	80.13	1,249,436	+0.21(+0.26%)

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