Date	Open	High	Low	Close	Volume	Change (%)
Apr 30, 2013	19.67	19.76	19.40	19.58	1,805,759	-0.02(-0.08%)
Apr 29, 2013	19.54	19.60	19.32	19.60	538,821	+0.18(+0.93%)
Apr 26, 2013	19.59	19.60	19.29	19.42	775,896	-0.18(-0.92%)
Apr 25, 2013	19.84	19.84	19.45	19.60	880,206	-0.12(-0.61%)
Apr 24, 2013	19.59	19.82	19.37	19.72	788,337	+0.13(+0.66%)
Apr 23, 2013	19.48	19.77	19.43	19.59	973,081	+0.26(+1.33%)
Apr 22, 2013	19.30	19.48	18.94	19.33	1,315,258	+0.08(+0.39%)
Apr 19, 2013	19.32	19.48	18.09	19.26	2,359,416	-0.02(-0.12%)
Apr 18, 2013	19.76	20.22	19.13	19.28	1,895,612	-0.34(-1.73%)
Apr 17, 2013	19.83	19.83	19.35	19.62	1,641,459	-0.32(-1.59%)
Apr 16, 2013	19.74	20.09	19.54	19.94	1,961,331	+0.37(+1.89%)
Apr 15, 2013	20.21	20.30	19.56	19.57	1,675,093	-0.80(-3.93%)
Apr 12, 2013	20.31	20.41	20.15	20.37	718,863	-0.02(-0.11%)
Apr 11, 2013	20.18	20.41	20.18	20.39	1,194,137	+0.20(+0.97%)
Apr 10, 2013	19.87	20.24	19.84	20.19	1,088,262	+0.40(+2.02%)
Apr 09, 2013	19.95	20.06	19.71	19.79	1,144,691	-0.14(-0.72%)
Apr 08, 2013	19.18	20.09	19.13	19.94	1,653,320	+0.79(+4.10%)
Apr 05, 2013	18.91	19.20	18.68	19.15	1,633,976	-0.05(-0.28%)
Apr 04, 2013	18.79	19.23	18.67	19.20	1,176,861	+0.44(+2.33%)
Apr 03, 2013	18.90	18.95	18.71	18.77	912,368	-0.09(-0.48%)
Apr 02, 2013	18.98	19.07	18.79	18.86	1,148,401	-0.06(-0.32%)
Apr 01, 2013	19.14	19.24	18.77	18.92	860,710	-0.25(-1.30%)
Mar 28, 2013	19.25	19.37	19.14	19.17	603,515	-0.02(-0.08%)
Mar 27, 2013	18.71	19.19	18.71	19.18	1,247,706	+0.30(+1.60%)
Mar 26, 2013	18.83	18.92	18.65	18.88	1,840,704	+0.51(+2.80%)
Mar 25, 2013	18.70	18.81	18.31	18.37	1,139,274	-0.31(-1.68%)
Mar 22, 2013	18.87	18.87	18.61	18.68	579,173	-0.12(-0.64%)
Mar 21, 2013	18.87	19.02	18.76	18.80	756,996	-0.21(-1.10%)
Mar 20, 2013	19.21	19.22	18.91	19.01	934,382	-0.16(-0.82%)
Mar 19, 2013	19.51	19.54	19.01	19.17	1,436,377	-0.38(-1.95%)
Mar 18, 2013	19.58	19.71	19.47	19.55	1,418,804	-0.29(-1.47%)
Mar 15, 2013	19.84	19.98	19.70	19.84	2,728,446	+0.08(+0.42%)
Mar 14, 2013	19.40	19.77	19.40	19.76	930,134	+0.34(+1.74%)
Mar 13, 2013	19.24	19.46	19.20	19.42	982,496	+0.16(+0.82%)
Mar 12, 2013	19.22	19.59	19.13	19.26	1,107,430	-0.06(-0.31%)
Mar 11, 2013	19.38	19.38	19.13	19.32	931,858	-0.05(-0.27%)
Mar 08, 2013	19.17	19.44	18.90	19.38	2,294,625	+0.35(+1.85%)
Mar 07, 2013	18.51	19.06	18.38	19.03	1,930,478	+0.52(+2.83%)
Mar 06, 2013	18.54	18.54	18.31	18.50	1,115,085	+0.07(+0.37%)
Mar 05, 2013	18.83	18.94	18.42	18.43	1,626,944	-0.24(-1.28%)
Mar 04, 2013	18.65	18.92	18.60	18.67	1,596,640	-0.50(-2.62%)
Mar 01, 2013	18.88	19.21	18.76	19.17	1,018,435	+0.16(+0.83%)
Feb 28, 2013	18.75	19.19	18.70	19.02	1,840,284	+0.22(+1.20%)
Feb 27, 2013	18.69	19.03	18.69	18.79	876,412	+0.14(+0.76%)
Feb 26, 2013	18.88	19.06	18.55	18.65	910,908	-0.12(-0.64%)
Feb 25, 2013	19.17	19.29	18.73	18.77	1,332,902	-0.31(-1.65%)
Feb 22, 2013	18.88	19.15	18.58	19.09	1,660,512	+0.31(+1.68%)
Feb 21, 2013	19.49	19.73	18.57	18.77	2,492,274	-1.35(-6.70%)
Feb 20, 2013	20.76	20.80	20.08	20.12	1,143,931	-0.70(-3.38%)
Feb 19, 2013	20.63	20.82	20.63	20.82	801,473	+0.22(+1.05%)
Feb 15, 2013	20.53	20.65	20.48	20.61	749,168	+0.04(+0.22%)
Feb 14, 2013	20.42	20.64	20.34	20.56	800,554	+0.04(+0.18%)
Feb 13, 2013	20.40	20.56	20.37	20.52	683,976	+0.13(+0.62%)
Feb 12, 2013	20.41	20.45	20.34	20.40	877,284	+0.00(+0.00%)
Feb 11, 2013	20.30	20.49	20.21	20.40	647,306	+0.10(+0.48%)
Feb 08, 2013	20.24	20.32	20.10	20.30	912,168	+0.15(+0.74%)
Feb 07, 2013	20.30	20.32	20.12	20.15	1,466,089	-0.10(-0.52%)
Feb 06, 2013	20.30	20.39	20.16	20.25	1,476,584	-0.11(-0.55%)
Feb 04, 2013	20.52	20.66	20.31	20.37	677,798	-0.28(-1.38%)
Feb 01, 2013	20.61	20.73	20.34	20.65	1,260,708	+0.20(+0.99%)
Jan 31, 2013	20.36	20.50	20.18	20.45	2,220,707	+0.07(+0.37%)
Jan 30, 2013	20.62	20.65	20.25	20.37	1,054,836	-0.31(-1.52%)
Jan 29, 2013	20.64	20.83	20.57	20.69	949,361	-0.10(-0.50%)
Jan 28, 2013	20.79	20.83	20.55	20.79	880,983	+0.07(+0.33%)
Jan 25, 2013	20.18	20.73	20.17	20.73	1,335,895	+0.64(+3.21%)
Jan 24, 2013	20.19	20.26	20.06	20.08	986,798	-0.01(-0.04%)
Jan 23, 2013	20.12	20.16	20.01	20.09	551,788	-0.10(-0.52%)
Jan 22, 2013	19.95	20.19	19.88	20.19	777,895	+0.24(+1.20%)
Jan 18, 2013	19.68	19.98	19.65	19.95	857,340	+0.27(+1.37%)
Jan 17, 2013	19.79	19.86	19.58	19.68	911,212	-0.03(-0.15%)
Jan 16, 2013	19.61	19.74	19.50	19.71	1,005,506	-0.08(-0.42%)
Jan 15, 2013	19.55	19.80	19.51	19.80	1,599,050	+0.05(+0.27%)
Jan 14, 2013	19.72	19.89	19.68	19.74	1,034,041	-0.02(-0.11%)
Jan 11, 2013	19.95	19.97	19.60	19.77	829,422	-0.16(-0.79%)
Jan 10, 2013	19.86	19.95	19.75	19.92	863,937	+0.15(+0.76%)
Jan 09, 2013	20.07	20.07	19.69	19.77	1,668,258	-0.20(-1.01%)
Jan 08, 2013	19.87	19.98	19.76	19.98	1,374,639	+0.05(+0.26%)
Jan 07, 2013	19.68	19.95	19.62	19.92	668,965	+0.12(+0.60%)
Jan 04, 2013	19.88	19.96	19.68	19.80	1,276,008	+0.04(+0.23%)
Jan 03, 2013	19.71	19.89	19.65	19.76	558,739	+0.07(+0.34%)
Jan 02, 2013	19.59	19.70	19.02	19.69	1,155,889	+0.67(+3.54%)
Dec 31, 2012	18.67	19.03	18.57	19.02	1,114,974	+0.34(+1.80%)
Dec 28, 2012	18.85	19.00	18.68	18.68	564,333	-0.29(-1.54%)
Dec 27, 2012	19.12	19.23	18.64	18.97	588,365	-0.09(-0.47%)
Dec 26, 2012	19.22	19.28	18.88	19.06	571,072	-0.15(-0.77%)
Dec 24, 2012	19.13	19.32	19.07	19.21	496,173	+0.00(+0.00%)
Dec 21, 2012	18.88	19.21	18.88	19.21	2,549,679	+0.12(+0.62%)
Dec 20, 2012	18.85	19.23	18.72	19.09	1,548,458	+0.51(+2.72%)
Dec 19, 2012	18.41	18.71	18.33	18.59	1,281,404	+0.13(+0.73%)
Dec 18, 2012	18.04	18.45	17.93	18.45	1,570,193	+0.42(+2.35%)
Dec 17, 2012	18.11	18.11	17.75	18.03	1,913,233	+0.05(+0.29%)
Dec 14, 2012	17.79	18.03	17.64	17.98	6,973,561	-0.26(-1.43%)
Dec 13, 2012	18.21	18.40	18.10	18.24	757,344	+0.01(+0.04%)
Dec 12, 2012	18.51	18.56	18.16	18.23	801,409	-0.26(-1.41%)
Dec 11, 2012	18.32	18.49	18.23	18.49	748,666	+0.30(+1.68%)
Dec 10, 2012	18.26	18.35	18.16	18.19	580,294	-0.07(-0.37%)
Dec 07, 2012	18.04	18.27	17.94	18.25	661,382	+0.28(+1.57%)
Dec 06, 2012	17.92	18.17	17.91	17.97	608,430	+0.04(+0.21%)
Dec 05, 2012	18.20	18.25	17.88	17.93	800,018	-0.24(-1.31%)
Dec 04, 2012	18.04	18.25	17.93	18.17	1,376,649	+0.25(+1.41%)
Nov 30, 2012	17.91	18.13	17.61	17.92	1,208,112	-0.01(-0.04%)
Nov 29, 2012	17.74	18.01	17.55	17.93	1,171,878	+0.33(+1.90%)
Nov 28, 2012	17.38	17.65	17.08	17.59	691,200	+0.17(+0.98%)
Nov 27, 2012	17.75	17.78	17.41	17.42	668,491	-0.40(-2.25%)
Nov 26, 2012	17.67	17.98	17.55	17.82	819,811	+0.07(+0.38%)
Nov 23, 2012	17.54	17.80	17.48	17.75	254,770	+0.32(+1.83%)
Nov 21, 2012	17.50	17.59	17.32	17.43	882,873	-0.07(-0.38%)
Nov 20, 2012	17.32	17.64	17.16	17.50	892,337	+0.14(+0.81%)
Nov 19, 2012	16.94	17.49	16.90	17.36	1,038,355	+0.59(+3.50%)
Nov 16, 2012	16.78	16.83	16.60	16.77	1,084,928	-0.01(-0.04%)
Nov 15, 2012	16.80	16.97	16.62	16.78	763,029	-0.05(-0.31%)
Nov 14, 2012	17.43	17.44	16.79	16.83	817,264	-0.56(-3.25%)
Nov 13, 2012	17.31	17.53	17.18	17.40	961,263	-0.01(-0.04%)
Nov 12, 2012	17.56	17.76	17.39	17.41	497,001	-0.09(-0.51%)
Nov 09, 2012	17.33	17.59	17.33	17.49	1,441,998	+0.00(+0.00%)
Nov 08, 2012	17.72	17.83	17.49	17.49	1,148,426	-0.27(-1.51%)
Nov 07, 2012	17.93	18.00	17.72	17.76	1,424,492	-0.35(-1.93%)
Nov 06, 2012	18.02	18.13	17.87	18.11	973,103	+0.14(+0.79%)
Nov 05, 2012	18.05	18.14	17.75	17.97	1,094,655	-0.11(-0.62%)
Nov 02, 2012	17.94	18.23	17.88	18.08	1,106,087	+0.28(+1.59%)
Nov 01, 2012	17.82	17.96	17.72	17.80	1,839,315	+0.01(+0.04%)
Oct 31, 2012	17.92	18.04	17.56	17.79	1,875,753	-0.15(-0.83%)
Oct 26, 2012	18.21	17.94	17.94	17.94	1,109,692	-0.30(-1.63%)
Oct 25, 2012	18.38	18.53	18.09	18.24	1,859,317	-0.01(-0.04%)
Oct 24, 2012	18.30	18.38	18.08	18.25	1,194,454	+0.04(+0.20%)
Oct 23, 2012	17.98	18.28	17.87	18.21	1,156,061	+0.16(+0.86%)
Oct 19, 2012	18.01	18.21	17.98	18.05	1,461,701	-0.08(-0.45%)
Oct 18, 2012	18.56	18.70	17.84	18.13	3,724,788	-0.79(-4.16%)
Oct 17, 2012	19.06	19.14	18.77	18.92	1,319,578	-0.15(-0.78%)
Oct 16, 2012	19.11	19.20	18.97	19.07	1,080,334	+0.05(+0.27%)
Oct 15, 2012	18.86	19.02	18.63	19.02	853,557	+0.25(+1.31%)
Oct 12, 2012	19.13	19.17	18.71	18.77	1,035,658	-0.40(-2.09%)
Oct 11, 2012	19.38	19.38	19.07	19.17	929,638	-0.08(-0.42%)
Oct 10, 2012	19.33	19.52	19.19	19.26	3,205,720	-0.15(-0.77%)
Oct 09, 2012	19.69	19.78	19.39	19.40	833,221	-0.30(-1.55%)
Oct 08, 2012	19.72	19.85	19.59	19.71	532,444	-0.07(-0.34%)
Oct 05, 2012	19.88	20.01	19.70	19.78	992,093	-0.02(-0.11%)
Oct 04, 2012	19.86	19.95	19.62	19.80	1,024,896	+0.07(+0.38%)
Oct 03, 2012	19.56	19.78	19.48	19.72	726,012	+0.16(+0.80%)
Oct 02, 2012	19.61	19.71	19.45	19.57	1,076,991	+0.02(+0.11%)
Oct 01, 2012	19.91	19.95	19.30	19.55	1,647,359	-0.29(-1.46%)
Sep 28, 2012	19.73	19.86	19.58	19.84	2,641,372	-0.04(-0.19%)
Sep 27, 2012	19.56	19.93	19.40	19.87	2,475,987	+0.42(+2.14%)
Sep 26, 2012	19.49	19.57	19.20	19.46	2,407,991	+0.01(+0.04%)
Sep 25, 2012	19.89	19.91	19.29	19.45	3,140,970	-0.32(-1.64%)
Sep 24, 2012	19.85	19.99	19.71	19.77	1,218,292	-0.23(-1.14%)
Sep 21, 2012	20.10	20.21	19.84	20.00	2,219,024	+0.02(+0.11%)
Sep 20, 2012	20.51	20.51	19.72	19.98	2,081,731	-0.66(-3.18%)
Sep 19, 2012	20.87	20.92	20.64	20.64	1,136,205	-0.21(-0.99%)
Sep 18, 2012	20.96	21.06	20.67	20.84	2,011,449	-0.20(-0.95%)
Sep 17, 2012	21.23	21.45	20.93	21.04	853,763	-0.25(-1.18%)
Sep 14, 2012	21.40	21.76	21.22	21.29	1,965,297	-0.03(-0.14%)
Sep 13, 2012	21.29	21.53	20.95	21.32	2,119,029	+0.01(+0.07%)
Sep 12, 2012	21.26	21.48	20.98	21.31	966,345	+0.25(+1.19%)
Sep 11, 2012	20.68	21.11	20.68	21.06	932,592	+0.29(+1.42%)
Sep 10, 2012	20.95	21.08	20.71	20.76	1,004,630	-0.18(-0.88%)
Sep 07, 2012	20.92	21.18	20.77	20.95	1,119,219	+0.13(+0.64%)
Sep 06, 2012	20.32	20.84	20.32	20.81	1,176,923	+0.66(+3.26%)
Sep 05, 2012	20.27	20.42	20.00	20.16	694,938	-0.01(-0.07%)
Sep 04, 2012	20.05	20.18	19.80	20.17	1,614,885	+0.07(+0.37%)
Aug 31, 2012	20.22	20.22	19.95	20.10	794,302	+0.02(+0.11%)
Aug 30, 2012	20.29	20.38	20.02	20.08	526,492	-0.35(-1.73%)
Aug 29, 2012	20.48	20.51	20.28	20.43	571,844	+0.11(+0.54%)
Aug 27, 2012	20.56	20.66	20.29	20.32	630,025	-0.13(-0.65%)
Aug 24, 2012	20.33	20.52	20.26	20.45	682,699	+0.02(+0.11%)
Aug 23, 2012	20.53	20.58	20.31	20.43	1,503,027	-0.13(-0.65%)
Aug 22, 2012	20.42	20.61	20.17	20.56	1,243,071	+0.04(+0.18%)
Aug 21, 2012	20.67	20.95	20.53	20.53	1,334,814	-0.13(-0.61%)
Aug 20, 2012	20.36	20.70	20.21	20.65	1,272,617	+0.20(+0.97%)
Aug 17, 2012	20.22	20.53	20.13	20.45	933,714	+0.20(+0.98%)
Aug 16, 2012	19.84	20.27	19.66	20.25	931,659	+0.42(+2.12%)
Aug 15, 2012	19.76	20.06	19.69	19.83	461,028	+0.08(+0.41%)
Aug 14, 2012	20.02	20.02	19.66	19.75	822,433	-0.10(-0.48%)
Aug 13, 2012	19.94	20.05	19.76	19.85	884,050	-0.16(-0.81%)
Aug 10, 2012	20.13	20.24	19.95	20.01	663,527	-0.22(-1.09%)
Aug 09, 2012	20.05	20.28	19.96	20.23	811,237	+0.20(+0.99%)
Aug 08, 2012	19.91	20.09	19.71	20.03	713,412	+0.09(+0.44%)
Aug 07, 2012	20.21	20.21	19.78	19.94	656,048	-0.18(-0.88%)
Aug 06, 2012	19.83	20.17	19.68	20.12	471,693	+0.37(+1.87%)
Aug 03, 2012	19.58	19.98	19.46	19.75	599,010	+0.50(+2.61%)
Aug 02, 2012	19.01	19.30	19.01	19.25	598,530	-0.01(-0.04%)
Aug 01, 2012	19.46	19.71	19.26	19.26	1,556,050	-0.11(-0.57%)
Jul 31, 2012	19.21	19.41	19.09	19.37	963,023	+0.15(+0.77%)
Jul 30, 2012	19.22	19.32	19.09	19.22	1,281,306	-0.04(-0.23%)
Jul 27, 2012	18.74	19.33	18.72	19.26	1,253,722	+0.60(+3.20%)
Jul 26, 2012	18.75	18.91	18.53	18.67	1,175,713	+0.32(+1.73%)
Jul 25, 2012	18.77	18.79	18.28	18.35	1,636,980	-0.26(-1.39%)
Jul 24, 2012	19.25	19.25	18.49	18.61	2,137,144	-0.63(-3.30%)
Jul 23, 2012	19.26	19.43	19.10	19.24	1,611,715	-0.54(-2.72%)
Jul 20, 2012	19.90	20.05	19.56	19.78	2,778,729	-0.46(-2.26%)
Jul 19, 2012	18.68	20.81	18.68	20.24	3,691,555	-0.91(-4.29%)
Jul 18, 2012	21.19	21.31	21.03	21.15	1,038,327	-0.04(-0.17%)
Jul 17, 2012	21.23	21.54	21.09	21.18	2,012,165	+0.04(+0.21%)
Jul 16, 2012	20.98	21.17	20.81	21.14	1,077,784	+0.18(+0.88%)
Jul 13, 2012	20.98	21.14	20.79	20.95	1,327,422	+0.18(+0.85%)
Jul 12, 2012	20.83	20.92	20.69	20.78	1,405,559	-0.31(-1.47%)
Jul 11, 2012	21.34	21.48	21.01	21.09	754,025	-0.21(-1.00%)
Jul 10, 2012	21.79	21.81	21.20	21.30	1,107,926	-0.31(-1.43%)
Jul 09, 2012	21.76	21.91	21.48	21.61	1,264,479	-0.18(-0.85%)
Jul 06, 2012	21.64	21.92	21.56	21.79	454,739	-0.16(-0.74%)
Jul 05, 2012	21.88	22.08	21.79	21.96	537,758	-0.02(-0.10%)
Jul 03, 2012	21.65	22.13	21.64	21.98	572,811	+0.33(+1.53%)
Jul 02, 2012	21.61	21.68	21.33	21.65	1,280,935	+0.15(+0.72%)
Jun 29, 2012	21.26	21.57	21.17	21.49	1,142,146	+0.75(+3.63%)
Jun 28, 2012	20.32	20.76	20.24	20.74	787,496	+0.21(+1.04%)
Jun 27, 2012	20.31	20.58	20.20	20.53	829,786	+0.24(+1.16%)
Jun 26, 2012	20.30	20.44	19.93	20.29	1,183,632	+0.04(+0.18%)
Jun 25, 2012	20.20	20.39	20.08	20.25	1,048,137	-0.29(-1.43%)
Jun 22, 2012	20.78	20.78	20.33	20.55	1,491,270	-0.06(-0.28%)
Jun 21, 2012	21.01	21.06	20.51	20.60	983,367	-0.37(-1.78%)
Jun 20, 2012	20.98	21.05	20.77	20.98	844,924	+0.04(+0.17%)
Jun 19, 2012	20.73	21.26	20.67	20.94	1,188,755	+0.23(+1.13%)
Jun 18, 2012	20.35	20.93	20.20	20.71	1,195,219	+0.24(+1.18%)
Jun 15, 2012	20.03	20.48	20.00	20.47	1,361,845	+0.43(+2.16%)
Jun 14, 2012	19.39	20.08	19.29	20.03	868,469	+0.72(+3.72%)
Jun 13, 2012	19.55	19.69	19.21	19.32	765,037	-0.31(-1.57%)
Jun 12, 2012	19.29	19.64	19.10	19.62	855,754	+0.48(+2.49%)
Jun 11, 2012	20.08	20.12	19.15	19.15	1,169,525	-0.72(-3.61%)
Jun 08, 2012	19.56	19.89	19.39	19.87	786,596	+0.21(+1.08%)
Jun 07, 2012	20.05	20.15	19.62	19.65	1,216,416	-0.12(-0.59%)
Jun 06, 2012	19.07	19.85	18.98	19.77	1,816,116	+0.91(+4.81%)
Jun 05, 2012	18.56	18.89	18.47	18.86	1,901,838	+0.21(+1.14%)
Jun 04, 2012	19.28	19.29	18.54	18.65	1,043,315	-0.59(-3.05%)
Jun 01, 2012	19.57	19.77	19.16	19.24	1,150,846	-0.96(-4.75%)
May 31, 2012	19.89	20.27	19.65	20.19	1,250,723	+0.36(+1.81%)
May 30, 2012	20.14	20.32	19.81	19.84	1,018,515	-0.58(-2.83%)
May 29, 2012	20.04	20.48	19.97	20.41	1,108,537	+0.57(+2.88%)
May 25, 2012	19.75	19.92	19.59	19.84	596,076	+0.04(+0.22%)
May 24, 2012	19.64	20.00	19.45	19.80	1,135,890	+0.03(+0.15%)
May 23, 2012	19.37	19.90	19.16	19.77	1,311,010	+0.15(+0.75%)
May 22, 2012	19.54	19.74	19.45	19.62	1,010,134	+0.10(+0.49%)
May 21, 2012	18.93	19.62	18.93	19.53	1,184,099	+0.42(+2.18%)
May 18, 2012	19.05	19.30	18.87	19.11	1,608,669	+0.09(+0.46%)
May 17, 2012	20.19	20.19	19.02	19.02	1,188,415	-1.09(-5.42%)
May 16, 2012	20.63	20.66	20.10	20.11	1,404,578	-0.38(-1.86%)
May 15, 2012	20.67	20.71	20.39	20.49	1,692,866	-0.13(-0.64%)
May 14, 2012	20.84	20.99	20.60	20.63	730,615	-0.51(-2.42%)
May 11, 2012	20.92	21.31	20.87	21.14	763,290	+0.01(+0.03%)
May 10, 2012	21.17	21.29	20.76	21.13	809,637	+0.21(+0.98%)
May 09, 2012	21.03	21.13	20.75	20.93	1,159,032	-0.42(-1.96%)
May 08, 2012	21.08	21.37	20.85	21.34	740,166	+0.09(+0.41%)
May 07, 2012	21.49	21.56	21.11	21.26	778,812	-0.28(-1.29%)
May 04, 2012	21.62	21.65	21.38	21.53	1,143,463	-0.26(-1.21%)
May 03, 2012	21.78	22.12	21.59	21.80	1,007,906	-0.04(-0.17%)
May 02, 2012	21.83	21.97	21.64	21.83	854,776	-0.22(-1.00%)

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