Date	Open	High	Low	Close	Volume	Change (%)
May 24, 2011	21.62	21.63	21.41	21.58	378,388	-0.04(-0.19%)
May 20, 2011	21.47	21.64	21.39	21.62	333,021	+0.02(+0.09%)
May 19, 2011	21.47	21.69	21.45	21.60	584,506	+0.14(+0.65%)
May 18, 2011	21.33	21.48	21.31	21.46	315,726	+0.17(+0.80%)
May 17, 2011	21.29	21.40	21.21	21.29	432,583	+0.02(+0.09%)
May 16, 2011	21.07	21.32	21.03	21.27	381,396	+0.20(+0.95%)
May 13, 2011	21.22	21.30	21.05	21.07	270,281	-0.06(-0.28%)
May 12, 2011	21.22	21.40	20.99	21.13	428,594	-0.11(-0.52%)
May 11, 2011	21.23	21.34	21.17	21.24	435,985	+0.04(+0.19%)
May 10, 2011	21.37	21.37	21.17	21.20	494,442	-0.11(-0.52%)
May 09, 2011	21.15	21.40	21.09	21.31	422,213	+0.16(+0.76%)
May 06, 2011	21.07	21.15	20.88	21.15	496,756	+0.07(+0.33%)
May 05, 2011	21.24	21.24	20.91	21.08	594,218	-0.17(-0.80%)
May 04, 2011	21.11	21.25	21.03	21.25	324,829	+0.18(+0.85%)
May 03, 2011	21.31	21.33	21.07	21.07	474,548	-0.25(-1.17%)
May 02, 2011	21.08	21.33	21.26	21.32	600,028	+0.24(+1.14%)
Apr 29, 2011	20.74	21.08	20.72	21.08	604,639	+0.33(+1.59%)
Apr 28, 2011	20.74	20.82	20.68	20.75	315,064	+0.02(+0.10%)
Apr 27, 2011	20.79	20.79	20.60	20.73	472,290	-0.02(-0.10%)
Apr 26, 2011	20.64	20.79	20.63	20.75	651,959	+0.20(+0.97%)
Apr 25, 2011	20.48	20.60	20.51	20.55	180,637	+0.03(+0.15%)
Apr 21, 2011	20.54	20.60	20.49	20.52	232,446	+0.01(+0.05%)
Apr 20, 2011	20.57	20.63	20.37	20.51	280,072	-0.04(-0.19%)
Apr 19, 2011	20.30	20.65	20.21	20.55	436,126	+0.31(+1.53%)
Apr 18, 2011	20.15	20.24	20.02	20.24	425,379	+0.05(+0.25%)
Apr 15, 2011	20.19	20.35	20.16	20.19	460,521	+0.04(+0.20%)
Apr 14, 2011	20.22	20.24	20.15	20.15	470,520	-0.11(-0.54%)
Apr 13, 2011	20.36	20.48	20.25	20.26	300,895	-0.06(-0.30%)
Apr 12, 2011	20.41	20.54	20.29	20.32	329,047	-0.12(-0.59%)
Apr 11, 2011	20.46	20.59	20.44	20.44	406,005	-0.12(-0.58%)
Apr 08, 2011	20.54	20.59	20.44	20.56	196,315	+0.05(+0.24%)
Apr 07, 2011	20.60	20.69	20.50	20.51	456,714	-0.15(-0.73%)
Apr 06, 2011	20.66	20.68	20.55	20.66	271,859	-0.01(-0.05%)
Apr 05, 2011	20.58	20.67	20.51	20.67	334,029	+0.09(+0.44%)
Apr 04, 2011	20.49	20.63	20.47	20.58	245,146	+0.13(+0.64%)
Apr 01, 2011	20.42	20.62	20.42	20.45	386,246	+0.01(+0.05%)
Mar 31, 2011	20.20	20.54	20.17	20.44	671,608	+0.17(+0.84%)
Mar 30, 2011	20.22	20.27	20.27	20.27	463,902	-0.01(-0.05%)
Mar 29, 2011	20.30	20.47	20.23	20.28	485,098	+0.04(+0.20%)
Mar 28, 2011	20.49	20.50	20.22	20.24	710,358	-0.16(-0.78%)
Mar 25, 2011	20.63	20.69	20.40	20.40	2,867,645	-0.19(-0.92%)
Mar 24, 2011	20.59	20.65	20.56	20.59	318,930	+0.00(+0.00%)
Mar 23, 2011	20.55	20.60	20.51	20.59	192,196	+0.02(+0.10%)
Mar 22, 2011	20.60	20.63	20.49	20.57	266,854	-0.03(-0.15%)
Mar 21, 2011	20.57	20.64	20.53	20.60	522,644	+0.16(+0.78%)
Mar 18, 2011	20.38	20.59	20.38	20.44	1,062,409	+0.17(+0.84%)
Mar 17, 2011	20.00	20.42	19.98	20.27	456,934	+0.21(+1.05%)
Mar 16, 2011	19.89	20.10	19.68	20.06	436,595	+0.15(+0.75%)
Mar 15, 2011	19.82	19.95	19.50	19.91	511,168	-0.05(-0.25%)
Mar 14, 2011	20.06	20.10	19.86	19.96	296,719	-0.09(-0.45%)
Mar 11, 2011	20.00	20.20	20.00	20.05	653,376	-0.05(-0.25%)
Mar 10, 2011	20.10	20.23	20.00	20.10	583,302	-0.05(-0.25%)
Mar 09, 2011	20.25	20.37	20.01	20.15	637,714	-0.09(-0.44%)
Mar 08, 2011	20.20	20.46	20.20	20.24	490,311	+0.11(+0.55%)
Mar 07, 2011	20.46	20.46	20.05	20.13	612,357	-0.24(-1.18%)
Mar 04, 2011	20.55	20.56	20.37	20.37	479,729	-0.13(-0.63%)
Mar 03, 2011	20.40	20.54	20.40	20.50	890,583	+0.08(+0.39%)
Mar 02, 2011	20.47	20.55	20.39	20.42	359,882	-0.01(-0.05%)

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