Date	Open	High	Low	Close	Volume	Change (%)
Dec 30, 2011	80.21	80.31	80.10	80.10	1,511,591	-0.10(-0.13%)
Dec 29, 2011	80.10	80.24	79.98	80.21	1,356,210	+0.19(+0.24%)
Dec 28, 2011	79.91	80.09	79.86	80.02	1,202,543	+0.14(+0.17%)
Dec 27, 2011	79.70	79.88	79.68	79.88	1,500,909	+0.14(+0.18%)
Dec 23, 2011	79.69	79.78	79.51	79.73	935,677	+0.03(+0.04%)
Dec 21, 2011	79.89	79.93	79.68	79.71	1,280,278	-0.20(-0.25%)
Dec 20, 2011	79.95	80.05	79.88	79.91	3,826,469	-0.11(-0.14%)
Dec 19, 2011	79.94	80.07	79.87	80.02	1,546,893	+0.08(+0.10%)
Dec 16, 2011	79.81	79.99	79.79	79.94	1,627,135	+0.27(+0.34%)
Dec 15, 2011	79.80	79.88	79.60	79.67	5,189,049	-0.17(-0.21%)
Dec 14, 2011	79.64	79.93	79.70	79.84	1,278,194	+0.20(+0.25%)
Dec 13, 2011	79.49	79.74	79.45	79.64	2,020,971	+0.16(+0.20%)
Dec 12, 2011	79.52	79.63	79.47	79.48	1,680,764	+0.02(+0.03%)
Dec 09, 2011	79.49	79.60	79.37	79.46	1,287,020	-0.04(-0.05%)
Dec 08, 2011	79.39	79.60	79.37	79.50	1,691,691	+0.08(+0.10%)
Dec 07, 2011	79.34	79.49	79.22	79.42	951,241	+0.15(+0.18%)
Dec 06, 2011	79.26	79.33	79.07	79.28	1,521,604	-0.07(-0.09%)
Dec 05, 2011	79.17	79.35	79.10	79.35	1,464,389	+0.09(+0.11%)
Dec 02, 2011	79.04	79.33	79.00	79.26	1,263,042	+0.20(+0.26%)

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