Date	Open	High	Low	Close	Volume	Change (%)
May 31, 2012	56.74	56.90	56.25	56.55	36,945	-0.17(-0.31%)
May 30, 2012	57.03	57.03	56.69	56.72	10,280	-0.58(-1.01%)
May 29, 2012	57.00	57.34	56.97	57.30	25,294	+0.48(+0.84%)
May 25, 2012	56.92	57.02	56.72	56.82	26,927	-0.01(-0.02%)
May 24, 2012	56.49	56.88	56.49	56.83	74,323	+0.42(+0.74%)
May 23, 2012	56.10	56.47	55.88	56.41	17,143	+0.00(+0.00%)
May 22, 2012	56.47	56.73	56.34	56.41	38,339	+0.05(+0.08%)
May 21, 2012	55.98	56.36	55.76	56.36	17,711	+0.50(+0.89%)
May 18, 2012	56.43	56.43	55.80	55.86	93,009	-0.37(-0.66%)
May 17, 2012	57.23	57.23	56.23	56.24	15,360	-0.94(-1.65%)
May 16, 2012	57.14	57.37	57.13	57.18	19,961	+0.19(+0.33%)
May 15, 2012	57.05	57.33	56.87	56.99	29,160	-0.14(-0.25%)
May 14, 2012	57.12	57.39	56.88	57.13	54,802	-0.36(-0.63%)
May 11, 2012	57.37	57.84	57.37	57.50	11,796	-0.06(-0.10%)
May 10, 2012	57.65	57.84	57.52	57.55	26,549	+0.26(+0.46%)
May 09, 2012	57.33	57.62	57.02	57.29	68,349	-0.39(-0.67%)
May 08, 2012	57.78	57.78	57.19	57.68	84,806	-0.32(-0.56%)
May 07, 2012	57.85	58.17	57.85	58.00	69,511	-0.06(-0.11%)
May 04, 2012	58.49	58.49	57.99	58.07	112,659	-0.61(-1.04%)
May 03, 2012	58.98	58.98	58.53	58.68	16,844	-0.30(-0.51%)
May 02, 2012	58.61	59.03	58.61	58.98	29,203	+0.22(+0.38%)
May 01, 2012	58.62	59.07	58.45	58.76	41,975	+0.17(+0.28%)
Apr 30, 2012	58.76	58.76	58.47	58.59	24,536	-0.28(-0.47%)
Apr 27, 2012	59.01	59.06	58.81	58.87	22,361	-0.11(-0.19%)
Apr 26, 2012	58.41	59.03	58.41	58.98	15,963	+0.47(+0.80%)
Apr 25, 2012	58.11	58.51	58.11	58.51	29,734	+0.71(+1.22%)
Apr 24, 2012	57.79	58.06	57.73	57.80	20,429	+0.03(+0.05%)
Apr 23, 2012	57.96	57.96	57.59	57.77	38,227	-0.65(-1.11%)
Apr 20, 2012	58.20	58.65	58.20	58.42	14,871	+0.40(+0.68%)
Apr 19, 2012	58.05	58.38	57.88	58.03	2,940	-0.39(-0.67%)
Apr 18, 2012	58.30	58.52	58.19	58.42	29,964	-0.12(-0.21%)
Apr 17, 2012	58.21	58.57	58.16	58.54	20,804	+0.67(+1.15%)
Apr 16, 2012	58.04	58.10	57.69	57.88	13,153	+0.09(+0.16%)
Apr 13, 2012	57.84	58.11	57.73	57.78	12,959	-0.09(-0.15%)
Apr 12, 2012	57.63	57.91	57.56	57.87	43,167	+0.26(+0.45%)
Apr 11, 2012	57.66	57.72	57.48	57.61	18,976	+0.41(+0.72%)
Apr 10, 2012	57.95	57.96	57.13	57.20	42,571	-0.87(-1.50%)
Apr 09, 2012	58.08	58.23	58.00	58.07	62,295	-0.63(-1.08%)
Apr 05, 2012	58.58	58.77	58.52	58.70	87,041	-0.08(-0.13%)
Apr 04, 2012	58.82	58.87	58.68	58.78	24,098	-0.23(-0.38%)
Apr 03, 2012	59.17	59.24	58.89	59.01	18,529	-0.22(-0.37%)
Apr 02, 2012	58.75	59.32	58.75	59.22	83,890	+0.51(+0.86%)
Mar 30, 2012	58.61	58.88	58.60	58.72	16,649	+0.24(+0.41%)
Mar 29, 2012	58.12	58.48	57.94	58.48	41,634	+0.16(+0.27%)
Mar 28, 2012	58.35	58.41	58.12	58.32	12,454	-0.22(-0.38%)
Mar 27, 2012	58.75	58.79	58.51	58.54	43,234	-0.08(-0.14%)
Mar 26, 2012	58.43	58.62	58.38	58.62	17,996	+0.53(+0.92%)
Mar 23, 2012	57.94	58.09	57.72	58.09	16,722	+0.01(+0.01%)
Mar 22, 2012	57.79	58.13	57.79	58.08	27,019	-0.05(-0.08%)
Mar 21, 2012	58.07	58.26	57.97	58.13	9,006	+0.10(+0.18%)
Mar 20, 2012	57.79	58.08	57.79	58.02	12,095	-0.02(-0.04%)
Mar 19, 2012	57.88	58.12	57.86	58.05	49,591	+0.17(+0.29%)
Mar 16, 2012	58.11	58.17	57.88	57.88	15,042	-0.23(-0.39%)
Mar 15, 2012	57.90	58.11	57.81	58.11	20,676	+0.24(+0.41%)
Mar 14, 2012	58.06	58.14	57.79	57.87	17,339	-0.19(-0.33%)
Mar 13, 2012	57.68	58.08	57.61	58.06	13,573	+0.65(+1.14%)
Mar 12, 2012	57.42	57.46	57.34	57.41	9,135	+0.11(+0.19%)
Mar 09, 2012	57.02	57.34	57.02	57.30	21,765	+0.21(+0.36%)
Mar 08, 2012	56.75	57.13	56.75	57.09	9,774	+0.58(+1.02%)
Mar 07, 2012	56.45	56.57	56.28	56.52	29,406	+0.15(+0.26%)
Mar 06, 2012	56.81	56.81	56.30	56.37	47,419	-0.79(-1.39%)
Mar 05, 2012	57.05	57.23	56.97	57.16	13,222	-0.01(-0.01%)
Mar 02, 2012	57.19	57.28	57.05	57.17	299,316	-0.02(-0.03%)

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