Date	Open	High	Low	Close	Volume	Change (%)
May 24, 2011	20.49	20.50	20.11	20.48	599,355	-0.12(-0.58%)
May 20, 2011	20.75	20.79	20.52	20.60	553,091	-0.17(-0.82%)
May 19, 2011	20.26	20.78	20.26	20.77	733,141	+0.36(+1.76%)
May 18, 2011	20.05	20.41	20.05	20.41	791,641	+0.31(+1.54%)
May 17, 2011	20.01	20.16	20.01	20.10	374,001	+0.10(+0.50%)
May 16, 2011	19.95	20.08	19.86	20.00	742,131	+0.00(+0.00%)
May 13, 2011	20.10	20.15	20.00	20.00	292,074	-0.09(-0.45%)
May 12, 2011	19.85	20.09	19.80	20.09	345,401	+0.19(+0.95%)
May 11, 2011	20.00	20.09	19.87	19.90	525,576	-0.14(-0.70%)
May 10, 2011	20.18	20.18	20.00	20.04	429,756	-0.06(-0.30%)
May 09, 2011	20.10	20.19	20.02	20.10	265,718	-0.01(-0.05%)
May 06, 2011	20.09	20.17	19.90	20.11	568,090	+0.06(+0.30%)
May 05, 2011	19.95	20.22	19.90	20.05	870,698	+0.04(+0.20%)
May 04, 2011	20.06	20.06	19.91	20.01	458,542	+0.01(+0.05%)
May 03, 2011	20.20	20.20	19.92	20.00	748,155	-0.18(-0.89%)
May 02, 2011	20.00	20.18	20.13	20.18	472,759	+0.20(+1.00%)
Apr 29, 2011	20.10	20.18	19.81	19.98	599,971	-0.05(-0.25%)
Apr 28, 2011	19.72	20.04	19.67	20.03	2,239,405	+0.24(+1.21%)
Apr 27, 2011	19.87	19.87	19.47	19.79	836,610	+0.01(+0.05%)
Apr 26, 2011	19.74	19.84	19.67	19.78	1,268,264	+0.07(+0.36%)
Apr 25, 2011	19.65	19.71	19.57	19.71	384,459	+0.11(+0.56%)
Apr 21, 2011	19.70	19.75	19.57	19.60	810,528	-0.05(-0.25%)
Apr 20, 2011	19.75	19.91	19.62	19.65	1,244,952	+0.01(+0.05%)
Apr 19, 2011	19.60	19.72	19.52	19.64	846,305	+0.02(+0.10%)
Apr 18, 2011	19.15	19.69	19.10	19.62	1,643,466	+0.46(+2.40%)
Apr 15, 2011	19.26	19.36	19.16	19.16	1,179,151	-0.16(-0.83%)
Apr 14, 2011	19.61	19.78	19.20	19.32	2,202,702	-0.48(-2.42%)
Apr 13, 2011	20.50	20.50	19.72	19.80	2,108,948	-0.77(-3.74%)
Apr 12, 2011	20.65	20.80	20.51	20.57	570,362	-0.26(-1.25%)
Apr 11, 2011	20.65	20.90	20.62	20.83	491,769	+0.18(+0.87%)
Apr 08, 2011	20.50	20.85	20.50	20.65	839,561	+0.13(+0.63%)
Apr 07, 2011	20.50	20.72	20.44	20.52	524,495	-0.04(-0.19%)
Apr 06, 2011	20.59	20.72	20.43	20.56	840,469	+0.01(+0.05%)
Apr 05, 2011	20.40	20.61	20.35	20.55	905,694	+0.16(+0.78%)
Apr 04, 2011	20.41	20.49	20.27	20.39	600,180	+0.03(+0.15%)
Apr 01, 2011	20.50	20.55	20.31	20.36	926,086	-0.08(-0.39%)
Mar 31, 2011	20.70	20.76	20.39	20.44	746,734	-0.22(-1.06%)
Mar 30, 2011	20.34	20.70	20.30	20.66	768,257	+0.40(+1.97%)
Mar 29, 2011	20.00	20.26	19.97	20.26	846,430	+0.25(+1.25%)
Mar 28, 2011	20.11	20.22	19.98	20.01	533,859	-0.11(-0.55%)
Mar 25, 2011	20.35	20.46	20.12	20.12	560,369	-0.24(-1.18%)
Mar 24, 2011	20.50	20.61	20.32	20.36	902,910	-0.28(-1.36%)
Mar 23, 2011	20.79	20.86	20.58	20.64	936,749	-0.14(-0.67%)
Mar 22, 2011	20.62	20.80	20.53	20.78	434,006	+0.20(+0.97%)
Mar 21, 2011	20.47	20.72	20.49	20.58	696,671	+0.09(+0.44%)
Mar 18, 2011	20.25	20.50	20.18	20.49	1,981,163	+0.34(+1.69%)
Mar 17, 2011	20.10	20.24	20.03	20.15	560,783	+0.07(+0.35%)
Mar 16, 2011	20.08	20.15	19.95	20.08	580,694	+0.00(+0.00%)
Mar 15, 2011	19.95	20.30	19.81	20.08	787,073	-0.22(-1.08%)
Mar 14, 2011	20.17	20.35	20.05	20.30	443,436	+0.04(+0.20%)
Mar 11, 2011	20.29	20.35	20.10	20.26	775,139	-0.07(-0.34%)
Mar 10, 2011	20.40	20.57	20.21	20.33	529,092	-0.08(-0.39%)
Mar 09, 2011	20.44	20.54	20.28	20.41	868,924	+0.04(+0.20%)
Mar 08, 2011	20.34	20.48	20.20	20.37	788,652	+0.17(+0.84%)
Mar 07, 2011	20.45	20.45	20.11	20.20	2,711,865	-0.31(-1.51%)
Mar 04, 2011	20.56	20.67	20.43	20.51	1,013,250	-0.05(-0.24%)
Mar 03, 2011	20.62	20.69	20.55	20.56	632,597	-0.06(-0.29%)
Mar 02, 2011	20.65	20.69	20.50	20.62	588,690	-0.07(-0.34%)

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