Date	Open	High	Low	Close	Volume	Change (%)
Apr 30, 2012	20.79	20.79	20.65	20.75	1,042,428	-0.08(-0.37%)
Apr 27, 2012	20.81	20.86	20.71	20.83	601,113	+0.08(+0.40%)
Apr 26, 2012	20.59	20.76	20.56	20.75	567,235	+0.08(+0.38%)
Apr 25, 2012	20.67	20.69	20.56	20.67	291,801	+0.22(+1.09%)
Apr 24, 2012	20.40	20.52	20.40	20.45	732,725	+0.24(+1.21%)
Apr 23, 2012	20.15	20.21	20.04	20.20	614,693	-0.29(-1.43%)
Apr 20, 2012	20.46	20.54	20.44	20.50	435,580	+0.19(+0.93%)
Apr 19, 2012	20.37	20.46	20.19	20.31	534,963	-0.09(-0.43%)
Apr 18, 2012	20.28	20.44	20.26	20.40	306,125	+0.05(+0.25%)
Apr 17, 2012	20.28	20.39	20.18	20.35	424,851	+0.25(+1.24%)
Apr 16, 2012	20.14	20.20	19.99	20.10	1,479,552	+0.07(+0.33%)
Apr 13, 2012	20.21	20.21	20.00	20.03	534,759	-0.16(-0.77%)
Apr 12, 2012	19.98	20.23	19.94	20.19	2,284,739	+0.28(+1.39%)
Apr 11, 2012	20.03	20.03	19.89	19.91	502,103	+0.23(+1.18%)
Apr 10, 2012	19.95	20.01	19.63	19.68	904,233	-0.22(-1.09%)
Apr 09, 2012	19.85	20.01	19.78	19.89	499,104	-0.10(-0.50%)
Apr 05, 2012	20.03	20.10	19.97	19.99	452,227	-0.07(-0.36%)
Apr 04, 2012	20.04	20.11	19.95	20.06	1,794,854	-0.31(-1.53%)
Apr 03, 2012	20.54	20.56	20.26	20.38	683,343	-0.27(-1.29%)
Apr 02, 2012	20.35	20.70	20.35	20.64	943,880	+0.21(+1.03%)
Mar 30, 2012	20.38	20.44	20.29	20.43	576,198	+0.20(+0.97%)
Mar 29, 2012	20.21	20.28	20.05	20.23	849,471	-0.04(-0.21%)
Mar 28, 2012	20.39	20.39	20.16	20.28	652,530	-0.14(-0.68%)
Mar 27, 2012	20.50	20.57	20.41	20.41	638,583	-0.04(-0.19%)
Mar 26, 2012	20.39	20.47	20.34	20.45	489,443	+0.26(+1.29%)
Mar 23, 2012	20.11	20.21	19.99	20.19	716,586	+0.06(+0.30%)
Mar 22, 2012	20.05	20.15	20.01	20.13	762,857	-0.22(-1.09%)
Mar 21, 2012	20.40	20.43	20.26	20.35	435,766	-0.07(-0.35%)
Mar 20, 2012	20.42	20.47	20.34	20.42	1,115,789	-0.21(-1.00%)
Mar 19, 2012	20.59	20.71	20.53	20.63	1,313,164	-0.03(-0.13%)
Mar 16, 2012	20.60	20.68	20.60	20.66	509,482	+0.13(+0.64%)
Mar 15, 2012	20.43	20.54	20.36	20.53	652,733	+0.19(+0.92%)
Mar 14, 2012	20.46	20.51	20.27	20.34	1,256,942	-0.19(-0.94%)
Mar 13, 2012	20.30	20.54	20.28	20.53	625,422	+0.36(+1.78%)
Mar 12, 2012	20.20	20.20	20.06	20.17	581,229	+0.01(+0.05%)
Mar 09, 2012	20.25	20.31	20.15	20.16	419,819	-0.10(-0.52%)
Mar 08, 2012	20.17	20.31	20.11	20.27	544,015	+0.43(+2.17%)
Mar 07, 2012	19.76	19.87	19.68	19.84	762,892	+0.24(+1.24%)
Mar 06, 2012	19.71	19.73	19.51	19.60	1,085,711	-0.53(-2.63%)
Mar 05, 2012	20.24	20.24	20.10	20.12	1,856,929	-0.09(-0.44%)
Mar 02, 2012	20.22	20.27	20.17	20.21	693,300	-0.10(-0.49%)
Mar 01, 2012	20.24	20.33	20.19	20.31	1,597,735	+0.20(+0.99%)
Feb 29, 2012	20.34	20.37	20.09	20.11	1,598,232	-0.12(-0.57%)
Feb 28, 2012	20.18	20.27	20.12	20.23	993,546	+0.19(+0.96%)
Feb 27, 2012	19.91	20.11	19.84	20.04	602,147	-0.10(-0.49%)
Feb 24, 2012	20.04	20.19	20.04	20.14	776,468	+0.24(+1.19%)
Feb 23, 2012	19.78	19.91	19.72	19.90	575,209	+0.16(+0.81%)
Feb 22, 2012	19.80	19.80	19.68	19.74	654,550	-0.14(-0.69%)
Feb 21, 2012	19.94	19.97	19.82	19.88	769,202	-0.14(-0.69%)
Feb 17, 2012	20.00	20.07	19.93	20.01	1,529,166	+0.14(+0.72%)
Feb 16, 2012	19.63	19.89	19.57	19.87	380,175	+0.18(+0.90%)
Feb 15, 2012	19.78	19.84	19.65	19.69	810,760	+0.17(+0.85%)
Feb 14, 2012	19.56	19.62	19.40	19.53	562,141	-0.11(-0.56%)
Feb 13, 2012	19.66	19.73	19.59	19.64	588,892	+0.14(+0.71%)
Feb 10, 2012	19.45	19.55	19.43	19.50	1,664,615	-0.30(-1.53%)
Feb 09, 2012	19.85	19.97	19.73	19.80	1,804,112	+0.03(+0.14%)
Feb 08, 2012	19.74	19.79	19.64	19.78	726,565	+0.10(+0.53%)
Feb 07, 2012	19.61	19.72	19.50	19.67	801,064	+0.07(+0.34%)
Feb 06, 2012	19.53	19.63	19.52	19.61	1,042,481	-0.12(-0.61%)
Feb 03, 2012	19.54	19.73	19.54	19.73	4,601,846	+0.28(+1.45%)
Feb 02, 2012	19.44	19.57	19.42	19.45	1,293,525	-0.03(-0.14%)

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