Date	Open	High	Low	Close	Volume	Change (%)
May 24, 2011	54.63	54.98	53.68	54.32	159,280	+0.04(+0.07%)
May 23, 2011	54.88	55.45	54.00	54.28	178,379	-1.68(-3.00%)
May 20, 2011	54.29	56.42	54.29	55.96	134,636	+1.20(+2.19%)
May 19, 2011	56.00	56.05	54.21	54.76	131,757	-0.95(-1.71%)
May 18, 2011	53.05	56.54	53.01	55.71	151,871	+3.06(+5.81%)
May 17, 2011	52.80	52.83	52.00	52.65	97,477	-0.35(-0.66%)
May 16, 2011	54.01	54.44	52.88	53.00	103,604	-1.36(-2.50%)
May 13, 2011	55.81	55.88	54.19	54.36	68,386	-1.56(-2.79%)
May 12, 2011	55.45	56.06	53.58	55.92	118,896	+0.87(+1.58%)
May 11, 2011	57.49	57.49	54.93	55.05	116,333	-2.45(-4.26%)
May 10, 2011	56.62	57.50	56.51	57.50	105,081	+1.10(+1.95%)
May 09, 2011	55.27	56.55	54.73	56.40	117,639	+1.21(+2.19%)
May 06, 2011	55.83	56.30	55.05	55.19	66,321	+0.39(+0.71%)
May 05, 2011	54.78	56.48	54.53	54.80	103,436	-0.37(-0.67%)
May 04, 2011	56.20	56.84	54.30	55.17	128,986	-1.13(-2.01%)
May 03, 2011	57.01	57.38	55.35	56.30	186,974	-1.02(-1.78%)
May 02, 2011	57.59	57.89	57.16	57.32	130,048	-0.53(-0.92%)
Apr 29, 2011	58.35	58.43	57.56	57.85	175,838	-0.26(-0.45%)
Apr 28, 2011	59.00	59.09	57.73	58.11	224,552	-1.03(-1.74%)
Apr 27, 2011	59.04	59.30	57.76	59.14	251,214	-0.03(-0.05%)
Apr 26, 2011	51.14	59.92	50.67	59.17	1,395,869	+11.10(+23.09%)
Apr 25, 2011	47.77	48.17	47.42	48.07	142,675	+0.30(+0.63%)
Apr 21, 2011	47.51	47.79	46.89	47.77	89,464	+0.80(+1.71%)
Apr 20, 2011	46.54	47.09	46.34	46.97	117,992	+1.22(+2.66%)
Apr 19, 2011	45.37	45.93	45.06	45.75	114,234	+0.61(+1.35%)
Apr 18, 2011	44.92	45.31	44.59	45.14	103,286	-0.47(-1.03%)
Apr 15, 2011	45.24	45.81	44.73	45.61	107,800	+0.08(+0.18%)
Apr 14, 2011	44.69	45.59	44.30	45.53	124,849	+0.57(+1.27%)
Apr 13, 2011	45.01	45.94	44.52	44.96	109,167	+0.56(+1.26%)
Apr 12, 2011	46.56	46.72	44.36	44.40	216,592	-2.54(-5.41%)
Apr 11, 2011	47.50	47.84	46.50	46.94	167,020	-0.37(-0.78%)
Apr 08, 2011	48.50	48.50	47.25	47.31	104,452	-0.72(-1.50%)
Apr 07, 2011	49.18	49.59	48.01	48.03	116,381	-1.13(-2.30%)
Apr 06, 2011	49.73	49.97	49.11	49.16	107,463	-0.27(-0.55%)
Apr 05, 2011	49.40	50.00	49.23	49.43	108,264	+0.04(+0.08%)
Apr 04, 2011	49.81	49.90	49.11	49.39	102,537	+0.09(+0.18%)
Apr 01, 2011	50.06	50.06	49.08	49.30	113,146	-0.45(-0.90%)
Mar 31, 2011	49.78	50.05	49.44	49.75	124,122	+0.03(+0.06%)
Mar 30, 2011	50.13	50.14	49.06	49.72	140,458	+0.22(+0.44%)
Mar 29, 2011	49.99	50.06	49.24	49.50	192,351	-0.22(-0.44%)
Mar 28, 2011	49.90	50.30	49.38	49.72	193,840	+0.48(+0.97%)
Mar 25, 2011	48.96	49.87	48.28	49.24	144,563	+0.75(+1.55%)
Mar 24, 2011	47.86	49.37	47.64	48.49	321,541	+1.15(+2.43%)
Mar 23, 2011	47.85	48.07	47.08	47.34	191,530	-0.41(-0.86%)
Mar 22, 2011	48.20	48.20	47.66	47.75	275,741	-0.04(-0.08%)
Mar 21, 2011	47.51	48.00	47.14	47.79	205,279	+1.48(+3.20%)
Mar 18, 2011	43.94	47.00	43.90	46.31	459,755	+2.91(+6.71%)
Mar 17, 2011	43.60	44.09	43.26	43.40	110,357	+0.33(+0.77%)
Mar 16, 2011	43.40	43.82	42.83	43.07	219,921	-0.34(-0.78%)
Mar 15, 2011	42.88	43.93	42.58	43.41	127,405	-1.20(-2.69%)
Mar 14, 2011	44.60	45.09	44.01	44.61	86,076	-0.52(-1.15%)
Mar 11, 2011	44.02	45.50	43.89	45.13	166,710	+1.05(+2.38%)
Mar 10, 2011	46.98	47.60	43.75	44.08	358,038	-3.80(-7.94%)
Mar 09, 2011	49.94	49.94	47.78	47.88	155,685	-2.12(-4.24%)
Mar 08, 2011	49.33	50.49	48.76	50.00	88,493	+0.58(+1.17%)
Mar 07, 2011	51.11	51.18	48.50	49.42	100,913	-1.36(-2.68%)
Mar 04, 2011	51.26	51.31	50.16	50.78	61,390	-0.45(-0.88%)
Mar 03, 2011	49.76	51.32	49.30	51.23	120,982	+2.08(+4.23%)
Mar 02, 2011	49.10	49.80	48.53	49.15	128,820	+0.03(+0.06%)

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