Date	Open	High	Low	Close	Volume	Change (%)
Feb 28, 2011	81.86	81.87	81.72	81.85	21,944	+0.02(+0.03%)
Feb 25, 2011	81.52	81.83	81.48	81.83	11,771	+0.36(+0.44%)
Feb 24, 2011	81.53	81.76	81.44	81.47	10,300	+0.28(+0.34%)
Feb 23, 2011	81.31	81.60	81.18	81.20	20,403	-0.10(-0.13%)
Feb 22, 2011	80.68	81.30	80.66	81.30	23,366	+0.93(+1.15%)
Feb 18, 2011	80.15	80.37	80.02	80.37	9,945	-0.01(-0.02%)
Feb 17, 2011	80.42	80.53	80.34	80.39	11,696	+0.26(+0.33%)
Feb 16, 2011	80.12	80.31	79.99	80.12	13,646	-0.14(-0.17%)
Feb 15, 2011	79.95	80.28	79.95	80.26	174,461	+0.18(+0.23%)
Feb 14, 2011	79.76	80.20	79.76	80.08	14,418	+0.24(+0.30%)
Feb 11, 2011	79.72	79.99	79.57	79.84	4,451	+0.52(+0.65%)
Feb 10, 2011	79.48	79.60	79.29	79.32	11,911	-0.26(-0.33%)
Feb 09, 2011	79.21	79.85	78.96	79.59	52,094	+0.55(+0.69%)
Feb 08, 2011	79.56	79.70	78.99	79.04	99,073	-0.55(-0.69%)
Feb 07, 2011	79.32	79.63	79.27	79.59	382,339	+0.00(+0.00%)
Feb 04, 2011	79.94	80.02	79.45	79.59	43,940	-0.67(-0.84%)
Feb 03, 2011	80.37	80.57	80.19	80.26	10,232	-0.36(-0.44%)
Feb 02, 2011	80.96	81.06	80.44	80.61	16,936	-0.19(-0.23%)
Feb 01, 2011	80.84	81.03	80.63	80.80	24,287	-0.44(-0.54%)
Jan 31, 2011	81.55	81.67	81.08	81.24	21,792	-0.38(-0.46%)
Jan 28, 2011	80.82	81.75	80.82	81.62	52,188	+0.47(+0.58%)
Jan 27, 2011	80.92	81.24	80.66	81.15	11,794	+0.23(+0.28%)
Jan 26, 2011	81.51	81.51	80.86	80.92	19,360	-0.78(-0.96%)
Jan 25, 2011	81.22	81.79	80.94	81.71	18,607	+0.68(+0.83%)
Jan 24, 2011	81.18	81.23	80.95	81.03	6,811	+0.04(+0.04%)
Jan 21, 2011	80.51	81.00	80.47	81.00	12,006	+0.29(+0.36%)
Jan 20, 2011	81.09	81.10	80.46	80.70	23,220	-0.74(-0.91%)
Jan 19, 2011	81.05	81.45	81.05	81.45	400,485	+0.30(+0.37%)
Jan 18, 2011	81.05	81.21	80.77	81.15	27,248	-0.32(-0.39%)
Jan 14, 2011	81.89	82.02	81.47	81.47	15,081	-0.20(-0.24%)
Jan 13, 2011	81.09	81.79	81.03	81.66	19,781	+0.59(+0.73%)
Jan 12, 2011	80.92	81.32	80.84	81.07	98,408	-0.36(-0.44%)
Jan 11, 2011	81.63	81.63	81.07	81.43	10,439	-0.34(-0.42%)
Jan 10, 2011	81.58	81.84	81.39	81.77	85,174	+0.36(+0.45%)
Jan 07, 2011	80.84	81.57	80.72	81.41	46,784	+0.49(+0.60%)
Jan 06, 2011	80.66	80.99	80.52	80.92	14,124	+0.41(+0.51%)
Jan 05, 2011	80.97	81.09	80.31	80.52	72,550	-1.14(-1.40%)
Jan 04, 2011	81.60	81.95	81.47	81.66	34,293	+0.07(+0.09%)
Jan 03, 2011	81.16	81.82	81.05	81.58	26,509	-0.30(-0.37%)
Dec 31, 2010	81.43	81.97	81.43	81.88	7,183	+0.53(+0.65%)
Dec 30, 2010	81.12	81.45	80.96	81.36	13,254	-0.11(-0.13%)
Dec 29, 2010	80.44	81.52	80.34	81.47	9,258	+1.09(+1.35%)
Dec 28, 2010	81.34	81.34	80.30	80.38	39,240	-1.11(-1.37%)
Dec 27, 2010	81.00	81.50	80.79	81.50	17,217	+0.56(+0.70%)
Dec 23, 2010	81.16	81.21	80.86	80.93	52,738	-0.30(-0.37%)
Dec 22, 2010	81.61	81.61	81.10	81.24	28,759	-0.26(-0.32%)
Dec 21, 2010	81.39	81.50	81.02	81.50	209,626	+0.12(+0.15%)
Dec 20, 2010	81.68	81.94	81.12	81.37	135,637	+0.01(+0.01%)
Dec 17, 2010	80.73	81.49	80.73	81.37	210,184	+0.83(+1.03%)
Dec 16, 2010	80.08	80.53	79.75	80.53	37,721	+0.46(+0.57%)
Dec 15, 2010	80.58	80.73	79.79	80.08	62,235	-0.34(-0.42%)
Dec 14, 2010	81.02	81.02	80.19	80.42	73,547	-1.19(-1.46%)
Dec 13, 2010	81.14	81.84	80.97	81.61	31,048	+0.33(+0.41%)
Dec 10, 2010	81.60	81.71	81.28	81.28	30,265	-0.63(-0.77%)
Dec 09, 2010	81.92	82.12	81.49	81.91	113,609	+0.13(+0.16%)
Dec 08, 2010	81.98	82.00	81.10	81.78	87,571	-0.75(-0.90%)
Dec 07, 2010	83.19	83.20	82.16	82.52	1,199,339	-1.55(-1.84%)
Dec 06, 2010	83.73	84.07	83.66	84.07	32,720	+0.71(+0.85%)
Dec 03, 2010	84.03	84.04	83.27	83.36	53,792	-0.13(-0.16%)
Dec 02, 2010	83.75	83.98	83.49	83.49	37,605	-0.24(-0.29%)

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