Date	Open	High	Low	Close	Volume	Change (%)
May 24, 2011	20.79	20.87	20.52	20.59	378,832	-0.04(-0.21%)
May 23, 2011	20.67	20.73	20.48	20.64	365,303	-0.71(-3.34%)
May 20, 2011	21.49	21.57	21.21	21.35	269,663	-0.22(-1.03%)
May 19, 2011	21.46	21.64	21.36	21.57	192,533	+0.29(+1.34%)
May 18, 2011	21.14	21.34	21.10	21.29	162,548	+0.11(+0.50%)
May 17, 2011	21.03	21.20	20.89	21.18	846,535	-0.01(-0.03%)
May 16, 2011	21.03	21.43	21.03	21.19	315,564	+0.24(+1.15%)
May 13, 2011	21.34	21.36	20.82	20.95	466,025	-0.46(-2.17%)
May 12, 2011	21.22	21.52	21.12	21.41	527,765	+0.19(+0.91%)
May 11, 2011	21.57	21.61	21.14	21.22	445,858	-0.49(-2.25%)
May 10, 2011	21.51	21.74	21.45	21.71	503,895	+0.36(+1.68%)
May 09, 2011	21.23	21.40	21.13	21.35	298,394	+0.35(+1.65%)
May 06, 2011	21.50	21.55	20.82	21.00	555,701	-0.18(-0.85%)
May 05, 2011	21.47	21.56	21.10	21.18	363,129	-0.53(-2.43%)
May 04, 2011	21.99	21.99	21.61	21.71	942,194	-0.20(-0.93%)
May 03, 2011	21.87	22.09	21.80	21.91	717,698	-0.25(-1.15%)
May 02, 2011	22.20	22.20	22.16	22.17	910,185	+0.04(+0.20%)
Apr 29, 2011	22.20	22.24	22.12	22.12	425,393	+0.01(+0.03%)
Apr 28, 2011	21.88	22.14	21.87	22.12	769,821	+0.10(+0.45%)
Apr 27, 2011	21.68	22.04	21.63	22.02	406,702	+0.46(+2.13%)
Apr 26, 2011	21.50	21.61	21.44	21.56	446,314	+0.20(+0.96%)
Apr 25, 2011	21.39	21.39	21.25	21.36	144,497	+0.04(+0.20%)
Apr 21, 2011	21.26	21.37	21.21	21.31	339,744	+0.10(+0.47%)
Apr 20, 2011	21.05	21.26	21.02	21.21	320,598	+0.74(+3.63%)
Apr 19, 2011	20.45	20.51	20.30	20.47	249,953	+0.48(+2.42%)
Apr 18, 2011	20.18	20.19	19.78	19.99	280,401	-0.64(-3.12%)
Apr 15, 2011	20.58	20.70	20.49	20.63	404,875	-0.05(-0.26%)
Apr 14, 2011	20.42	20.72	20.39	20.69	208,076	+0.17(+0.81%)
Apr 13, 2011	20.64	20.72	20.42	20.52	330,198	+0.22(+1.07%)
Apr 12, 2011	20.50	20.53	20.22	20.30	1,129,178	-0.42(-2.00%)
Apr 11, 2011	20.84	20.86	20.68	20.72	206,604	-0.20(-0.95%)
Apr 08, 2011	20.93	21.02	20.84	20.92	229,925	+0.37(+1.78%)
Apr 07, 2011	20.69	20.73	20.45	20.55	326,993	-0.20(-0.98%)
Apr 06, 2011	20.63	20.77	20.58	20.75	214,240	+0.28(+1.35%)
Apr 05, 2011	20.35	20.56	20.32	20.48	245,369	-0.06(-0.30%)
Apr 04, 2011	20.58	20.59	20.46	20.54	288,013	+0.04(+0.21%)
Apr 01, 2011	20.32	20.57	20.17	20.50	362,724	+0.18(+0.88%)
Mar 31, 2011	20.29	20.40	20.19	20.32	274,549	+0.01(+0.03%)
Mar 30, 2011	20.25	20.37	20.17	20.31	209,120	+0.14(+0.71%)
Mar 29, 2011	19.82	20.17	19.80	20.17	1,550,798	+0.33(+1.66%)
Mar 28, 2011	19.81	20.00	19.81	19.84	229,617	+0.04(+0.19%)
Mar 25, 2011	19.84	19.98	19.77	19.80	466,401	-0.20(-0.99%)
Mar 24, 2011	19.79	20.01	19.71	20.00	500,073	+0.41(+2.09%)
Mar 23, 2011	19.52	19.67	19.43	19.59	627,974	+0.09(+0.47%)
Mar 22, 2011	19.54	19.58	19.37	19.50	595,217	-0.19(-0.98%)
Mar 21, 2011	19.57	19.73	19.57	19.69	675,488	+0.45(+2.35%)
Mar 18, 2011	19.27	19.35	19.16	19.24	1,685,447	+0.68(+3.64%)
Mar 17, 2011	18.59	18.69	18.51	18.56	4,008,820	+0.58(+3.24%)
Mar 16, 2011	18.59	18.67	17.75	17.98	1,146,151	-0.58(-3.14%)
Mar 15, 2011	18.43	18.63	18.43	18.56	646,121	-0.67(-3.48%)
Mar 14, 2011	19.29	19.34	19.11	19.23	239,407	-0.17(-0.86%)
Mar 11, 2011	19.23	19.47	19.23	19.40	917,800	-0.02(-0.08%)
Mar 10, 2011	19.67	19.67	19.37	19.41	385,410	-0.49(-2.47%)
Mar 09, 2011	19.95	19.98	19.81	19.91	1,096,890	+0.20(+1.04%)
Mar 08, 2011	19.69	19.75	19.63	19.70	334,001	+0.12(+0.60%)
Mar 07, 2011	19.80	19.90	19.49	19.58	439,820	+0.02(+0.13%)
Mar 04, 2011	19.80	19.84	19.41	19.56	436,746	-0.20(-1.03%)
Mar 03, 2011	19.63	19.80	19.52	19.76	553,256	+0.22(+1.14%)
Mar 02, 2011	19.47	19.60	19.38	19.54	1,463,283	+0.02(+0.13%)

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