| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Feb 28, 2013 | 23.18 | 23.29 | 23.13 | 23.13 | 40,417 | -0.04(-0.16%) |
| Feb 27, 2013 | 22.80 | 23.25 | 22.80 | 23.17 | 36,057 | +0.31(+1.34%) |
| Feb 26, 2013 | 22.81 | 22.86 | 22.67 | 22.86 | 61,008 | -0.32(-1.38%) |
| Feb 22, 2013 | 23.05 | 23.21 | 23.03 | 23.18 | 54,247 | +0.26(+1.13%) |
| Feb 21, 2013 | 23.20 | 23.20 | 22.83 | 22.92 | 32,645 | -0.37(-1.59%) |
| Feb 20, 2013 | 23.74 | 23.75 | 23.28 | 23.29 | 72,276 | -0.42(-1.77%) |
| Feb 19, 2013 | 23.58 | 23.71 | 23.58 | 23.71 | 162,132 | +0.13(+0.55%) |
| Feb 15, 2013 | 23.70 | 23.70 | 23.52 | 23.58 | 28,343 | -0.11(-0.46%) |
| Feb 14, 2013 | 23.41 | 23.71 | 23.41 | 23.69 | 58,605 | +0.22(+0.94%) |
| Feb 13, 2013 | 23.57 | 23.57 | 23.38 | 23.47 | 43,630 | -0.07(-0.30%) |
| Feb 12, 2013 | 23.48 | 23.63 | 23.48 | 23.54 | 150,514 | +0.02(+0.09%) |
| Feb 11, 2013 | 23.47 | 23.54 | 23.44 | 23.52 | 270,251 | +0.06(+0.26%) |
| Feb 08, 2013 | 23.30 | 24.00 | 22.77 | 23.46 | 150,659 | +0.30(+1.31%) |
| Feb 07, 2013 | 23.23 | 23.23 | 22.99 | 23.16 | 64,595 | -0.14(-0.62%) |
| Feb 06, 2013 | 23.16 | 23.30 | 23.16 | 23.30 | 40,422 | +0.38(+1.66%) |
| Feb 04, 2013 | 23.11 | 23.20 | 22.90 | 22.92 | 40,100 | -0.27(-1.16%) |
| Feb 01, 2013 | 23.07 | 23.23 | 23.04 | 23.19 | 50,696 | +0.29(+1.27%) |
| Jan 31, 2013 | 22.95 | 22.98 | 22.83 | 22.90 | 79,623 | +0.03(+0.14%) |
| Jan 30, 2013 | 22.94 | 23.07 | 22.83 | 22.87 | 187,245 | -0.05(-0.22%) |
| Jan 29, 2013 | 23.07 | 23.07 | 22.85 | 22.92 | 312,256 | -0.26(-1.12%) |
| Jan 28, 2013 | 23.17 | 23.25 | 23.11 | 23.18 | 2,585,034 | +0.02(+0.09%) |
| Jan 25, 2013 | 23.01 | 23.18 | 23.01 | 23.16 | 98,770 | +0.26(+1.14%) |
| Jan 24, 2013 | 22.77 | 23.06 | 22.77 | 22.90 | 131,638 | +0.05(+0.22%) |
| Jan 23, 2013 | 22.87 | 22.89 | 22.76 | 22.85 | 32,109 | +0.07(+0.31%) |
| Jan 22, 2013 | 22.73 | 22.80 | 22.66 | 22.78 | 57,530 | +0.07(+0.31%) |
| Jan 18, 2013 | 22.73 | 22.73 | 22.63 | 22.71 | 16,953 | -0.10(-0.44%) |
| Jan 17, 2013 | 22.67 | 22.84 | 22.67 | 22.81 | 98,278 | +0.21(+0.93%) |
| Jan 16, 2013 | 22.55 | 22.67 | 22.53 | 22.60 | 37,372 | +0.02(+0.09%) |
| Jan 15, 2013 | 22.52 | 22.59 | 22.46 | 22.58 | 38,015 | +0.04(+0.17%) |
| Jan 14, 2013 | 22.42 | 22.56 | 22.37 | 22.54 | 61,227 | +0.08(+0.37%) |
| Jan 12, 2013 | 22.28 | 22.46 | 22.28 | 22.46 | 41,951 | +0.00(+0.00%) |
| Jan 11, 2013 | 22.28 | 22.46 | 22.28 | 22.46 | 41,951 | +0.17(+0.75%) |
| Jan 10, 2013 | 22.27 | 22.37 | 22.13 | 22.29 | 72,868 | +0.11(+0.50%) |
| Jan 09, 2013 | 22.07 | 22.19 | 22.07 | 22.18 | 224,599 | +0.17(+0.77%) |
| Jan 08, 2013 | 22.18 | 22.20 | 21.95 | 22.01 | 53,142 | -0.16(-0.72%) |
| Jan 07, 2013 | 22.23 | 22.26 | 22.14 | 22.17 | 167,311 | -0.12(-0.54%) |
| Jan 04, 2013 | 22.21 | 22.32 | 22.21 | 22.29 | 80,751 | +0.08(+0.36%) |
| Jan 03, 2013 | 22.38 | 22.46 | 22.20 | 22.21 | 28,985 | -0.20(-0.89%) |
| Jan 02, 2013 | 22.27 | 22.41 | 22.18 | 22.41 | 98,966 | +0.73(+3.36%) |
| Dec 31, 2012 | 21.29 | 21.76 | 21.28 | 21.68 | 23,419 | +0.38(+1.79%) |
| Dec 28, 2012 | 21.37 | 21.48 | 21.30 | 21.30 | 40,306 | -0.16(-0.75%) |
| Dec 27, 2012 | 21.53 | 21.55 | 21.22 | 21.46 | 31,488 | -0.06(-0.28%) |
| Dec 26, 2012 | 21.77 | 21.83 | 21.52 | 21.52 | 26,252 | -0.19(-0.88%) |
| Dec 24, 2012 | 21.75 | 21.75 | 21.65 | 21.71 | 21,901 | -0.06(-0.28%) |
| Dec 21, 2012 | 21.68 | 21.78 | 21.54 | 21.77 | 36,727 | -0.27(-1.23%) |
| Dec 20, 2012 | 22.02 | 22.09 | 21.84 | 22.04 | 57,097 | +0.09(+0.41%) |
| Dec 19, 2012 | 22.01 | 22.12 | 21.95 | 21.95 | 58,763 | +0.00(+0.00%) |
| Dec 18, 2012 | 21.60 | 21.97 | 21.60 | 21.95 | 114,001 | +0.41(+1.90%) |
| Dec 17, 2012 | 21.36 | 21.57 | 21.35 | 21.54 | 41,648 | +0.19(+0.89%) |
| Dec 14, 2012 | 21.35 | 21.45 | 21.29 | 21.35 | 34,438 | -0.07(-0.33%) |
| Dec 13, 2012 | 21.59 | 21.72 | 21.37 | 21.42 | 49,151 | -0.15(-0.70%) |
| Dec 12, 2012 | 21.73 | 21.74 | 21.55 | 21.57 | 40,518 | -0.05(-0.23%) |
| Dec 11, 2012 | 21.54 | 21.66 | 21.49 | 21.62 | 52,506 | +0.26(+1.22%) |
| Dec 10, 2012 | 21.23 | 21.40 | 21.23 | 21.36 | 38,604 | +0.15(+0.71%) |
| Dec 07, 2012 | 21.26 | 21.30 | 21.09 | 21.21 | 24,987 | +0.00(+0.00%) |
| Dec 06, 2012 | 21.02 | 21.22 | 21.01 | 21.21 | 27,706 | +0.21(+1.00%) |
| Dec 05, 2012 | 21.02 | 21.05 | 20.88 | 21.00 | 44,021 | +0.00(+0.00%) |
| Dec 04, 2012 | 20.95 | 21.06 | 20.85 | 21.00 | 183,620 | +0.02(+0.10%) |
| Nov 30, 2012 | 21.04 | 21.07 | 20.94 | 20.98 | 24,885 | -0.08(-0.38%) |
| Nov 29, 2012 | 21.02 | 21.12 | 20.96 | 21.06 | 18,022 | +0.13(+0.62%) |
| Nov 28, 2012 | 20.69 | 20.94 | 20.52 | 20.93 | 24,215 | +0.17(+0.82%) |
| Nov 27, 2012 | 20.80 | 20.90 | 20.75 | 20.76 | 50,319 | -0.03(-0.14%) |
| Nov 26, 2012 | 20.69 | 20.80 | 20.62 | 20.79 | 29,358 | +0.06(+0.29%) |
| Nov 24, 2012 | 20.49 | 20.73 | 20.49 | 20.73 | 43,800 | +0.00(+0.00%) |
| Nov 23, 2012 | 20.49 | 20.73 | 20.49 | 20.73 | 43,800 | +0.31(+1.52%) |
| Nov 21, 2012 | 20.29 | 20.45 | 20.29 | 20.42 | 42,140 | +0.15(+0.74%) |
| Nov 20, 2012 | 20.27 | 20.33 | 20.19 | 20.27 | 29,855 | -0.04(-0.20%) |
| Nov 19, 2012 | 19.99 | 20.32 | 19.99 | 20.31 | 49,363 | +0.42(+2.11%) |
| Nov 16, 2012 | 19.89 | 19.92 | 19.64 | 19.89 | 56,015 | +0.05(+0.25%) |
| Nov 15, 2012 | 19.93 | 20.02 | 19.75 | 19.84 | 152,598 | -0.11(-0.55%) |
| Nov 14, 2012 | 20.31 | 20.38 | 19.89 | 19.95 | 248,973 | -0.32(-1.58%) |
| Nov 13, 2012 | 20.24 | 20.41 | 20.17 | 20.27 | 118,120 | -0.07(-0.34%) |
| Nov 12, 2012 | 20.36 | 20.42 | 20.23 | 20.34 | 52,025 | +0.01(+0.05%) |
| Nov 09, 2012 | 20.26 | 20.53 | 20.25 | 20.33 | 54,700 | +0.02(+0.10%) |
| Nov 08, 2012 | 20.55 | 20.60 | 20.30 | 20.31 | 97,955 | -0.26(-1.25%) |
| Nov 07, 2012 | 20.95 | 20.95 | 20.51 | 20.57 | 376,766 | -0.59(-2.80%) |
| Nov 06, 2012 | 20.83 | 21.20 | 20.83 | 21.16 | 38,091 | +0.33(+1.58%) |
| Nov 05, 2012 | 20.61 | 20.88 | 20.60 | 20.83 | 121,068 | +0.18(+0.87%) |
| Nov 02, 2012 | 20.94 | 20.94 | 20.64 | 20.65 | 222,902 | -0.23(-1.10%) |
| Nov 01, 2012 | 20.30 | 20.88 | 20.27 | 20.88 | 126,260 | +0.61(+3.01%) |
| Oct 31, 2012 | 20.44 | 20.44 | 20.18 | 20.27 | 2,725,613 | -0.12(-0.59%) |
| Oct 26, 2012 | 20.39 | 20.39 | 20.39 | 0 | -0.06(-0.29%) | |
| Oct 25, 2012 | 20.57 | 20.61 | 20.30 | 20.45 | 162,341 | +0.05(+0.25%) |
| Oct 24, 2012 | 20.61 | 20.69 | 20.33 | 20.40 | 64,954 | -0.13(-0.63%) |
| Oct 23, 2012 | 20.35 | 20.60 | 20.27 | 20.53 | 75,558 | -0.03(-0.15%) |
| Oct 19, 2012 | 20.92 | 20.92 | 20.54 | 20.56 | 60,781 | -0.37(-1.77%) |
| Oct 18, 2012 | 21.14 | 21.18 | 20.90 | 20.93 | 140,609 | -0.26(-1.23%) |
| Oct 17, 2012 | 21.21 | 21.28 | 21.11 | 21.19 | 66,921 | -0.10(-0.47%) |
| Oct 16, 2012 | 20.97 | 21.29 | 20.97 | 21.29 | 74,343 | +0.37(+1.77%) |
| Oct 15, 2012 | 20.86 | 20.94 | 20.73 | 20.92 | 45,475 | +0.12(+0.58%) |
| Oct 12, 2012 | 20.85 | 20.90 | 20.72 | 20.80 | 39,276 | -0.05(-0.24%) |
| Oct 11, 2012 | 20.95 | 21.05 | 20.84 | 20.85 | 79,255 | +0.04(+0.19%) |
| Oct 10, 2012 | 20.99 | 21.00 | 20.78 | 20.81 | 174,030 | -0.25(-1.19%) |
| Oct 09, 2012 | 21.40 | 21.40 | 21.05 | 21.06 | 89,488 | -0.36(-1.68%) |
| Oct 08, 2012 | 21.45 | 21.54 | 21.37 | 21.42 | 24,857 | -0.14(-0.65%) |
| Oct 06, 2012 | 21.64 | 21.77 | 21.50 | 21.56 | 50,776 | +0.00(+0.00%) |
| Oct 05, 2012 | 21.64 | 21.77 | 21.50 | 21.56 | 50,776 | +0.00(+0.00%) |
| Oct 04, 2012 | 21.46 | 21.56 | 21.39 | 21.56 | 35,205 | +0.11(+0.51%) |
| Oct 03, 2012 | 21.53 | 21.59 | 21.41 | 21.45 | 88,680 | -0.04(-0.19%) |
| Oct 02, 2012 | 21.50 | 21.56 | 21.38 | 21.49 | 31,923 | +0.08(+0.37%) |
| Oct 01, 2012 | 21.64 | 21.70 | 21.35 | 21.41 | 699,004 | -0.14(-0.65%) |
| Sep 28, 2012 | 21.60 | 21.65 | 21.51 | 21.55 | 46,298 | -0.14(-0.65%) |
| Sep 27, 2012 | 21.42 | 21.73 | 21.37 | 21.69 | 241,728 | +0.33(+1.54%) |
| Sep 26, 2012 | 21.56 | 21.56 | 21.12 | 21.36 | 106,497 | -0.21(-0.97%) |
| Sep 25, 2012 | 22.05 | 22.06 | 21.55 | 21.57 | 95,827 | -0.36(-1.64%) |
| Sep 24, 2012 | 22.07 | 22.07 | 21.88 | 21.93 | 131,017 | -0.26(-1.17%) |
| Sep 21, 2012 | 22.34 | 22.40 | 22.18 | 22.19 | 127,099 | +0.01(+0.05%) |
| Sep 20, 2012 | 22.30 | 22.30 | 22.13 | 22.18 | 101,936 | -0.24(-1.07%) |
| Sep 19, 2012 | 22.45 | 22.49 | 22.40 | 22.42 | 94,047 | -0.02(-0.09%) |
| Sep 18, 2012 | 22.48 | 22.52 | 22.38 | 22.44 | 74,578 | -0.11(-0.49%) |
| Sep 17, 2012 | 22.76 | 22.76 | 22.49 | 22.55 | 335,063 | -0.23(-1.01%) |
| Sep 14, 2012 | 22.59 | 22.84 | 22.59 | 22.78 | 88,105 | +0.27(+1.20%) |
| Sep 13, 2012 | 22.36 | 22.63 | 22.23 | 22.51 | 115,305 | +0.20(+0.90%) |
| Sep 12, 2012 | 22.31 | 22.40 | 22.24 | 22.31 | 45,683 | +0.05(+0.22%) |
| Sep 11, 2012 | 22.21 | 22.34 | 22.15 | 22.26 | 79,149 | +0.09(+0.41%) |
| Sep 10, 2012 | 22.35 | 22.44 | 22.17 | 22.17 | 66,617 | -0.23(-1.03%) |
| Sep 07, 2012 | 22.43 | 22.51 | 22.30 | 22.40 | 124,354 | -0.08(-0.36%) |
| Sep 06, 2012 | 22.01 | 22.51 | 22.01 | 22.48 | 152,357 | +0.59(+2.70%) |
| Sep 05, 2012 | 21.86 | 21.95 | 21.77 | 21.89 | 694,042 | +0.00(+0.00%) |
| Sep 04, 2012 | 21.76 | 21.95 | 21.62 | 21.89 | 45,034 | +0.11(+0.51%) |
| Aug 31, 2012 | 21.80 | 21.86 | 21.55 | 21.78 | 32,843 | +0.17(+0.79%) |
| Aug 30, 2012 | 21.80 | 21.80 | 21.59 | 21.61 | 48,930 | -0.30(-1.37%) |
| Aug 29, 2012 | 21.89 | 21.98 | 21.75 | 21.91 | 45,957 | +0.11(+0.49%) |
| Aug 27, 2012 | 21.94 | 21.98 | 21.78 | 21.80 | 52,049 | -0.05(-0.21%) |
| Aug 24, 2012 | 21.80 | 21.92 | 21.69 | 21.85 | 35,904 | +0.03(+0.14%) |
| Aug 23, 2012 | 21.91 | 21.91 | 21.73 | 21.82 | 31,358 | -0.14(-0.64%) |
| Aug 22, 2012 | 22.08 | 22.08 | 21.85 | 21.96 | 122,303 | -0.12(-0.56%) |
| Aug 21, 2012 | 22.16 | 22.28 | 21.99 | 22.08 | 69,620 | -0.01(-0.03%) |
| Aug 20, 2012 | 22.12 | 22.12 | 21.96 | 22.09 | 41,901 | -0.09(-0.41%) |
| Aug 17, 2012 | 22.13 | 22.18 | 22.07 | 22.18 | 115,237 | +0.03(+0.14%) |
| Aug 16, 2012 | 21.88 | 22.18 | 21.88 | 22.15 | 104,102 | +0.34(+1.56%) |
| Aug 15, 2012 | 21.68 | 21.85 | 21.68 | 21.81 | 30,876 | +0.13(+0.60%) |
| Aug 14, 2012 | 21.95 | 21.95 | 21.61 | 21.68 | 78,815 | -0.21(-0.96%) |
| Aug 13, 2012 | 21.91 | 21.92 | 21.69 | 21.89 | 28,500 | -0.04(-0.18%) |
| Aug 11, 2012 | 21.81 | 21.94 | 21.76 | 21.93 | 44,142 | +0.00(+0.00%) |
| Aug 10, 2012 | 21.81 | 21.94 | 21.76 | 21.93 | 44,142 | +0.04(+0.18%) |
| Aug 09, 2012 | 21.72 | 21.91 | 21.72 | 21.89 | 49,974 | +0.16(+0.74%) |
| Aug 08, 2012 | 21.69 | 21.78 | 21.63 | 21.73 | 119,253 | +0.00(+0.00%) |
| Aug 07, 2012 | 21.55 | 21.85 | 21.55 | 21.73 | 166,775 | +0.31(+1.45%) |
| Aug 06, 2012 | 21.24 | 21.51 | 21.24 | 21.42 | 80,981 | +0.24(+1.13%) |
| Aug 03, 2012 | 20.92 | 21.25 | 20.92 | 21.18 | 105,710 | +0.53(+2.57%) |
| Aug 02, 2012 | 20.58 | 20.86 | 20.47 | 20.65 | 113,932 | -0.13(-0.63%) |
| Aug 01, 2012 | 21.06 | 21.06 | 20.76 | 20.78 | 121,830 | -0.18(-0.86%) |
| Jul 31, 2012 | 20.99 | 21.15 | 20.95 | 20.96 | 52,846 | -0.01(-0.05%) |
| Jul 30, 2012 | 21.18 | 21.24 | 20.88 | 20.97 | 149,613 | -0.22(-1.04%) |
| Jul 27, 2012 | 20.77 | 21.23 | 20.73 | 21.19 | 66,812 | +0.56(+2.71%) |
| Jul 26, 2012 | 20.39 | 20.70 | 20.39 | 20.63 | 101,065 | +0.61(+3.05%) |
| Jul 25, 2012 | 19.85 | 20.14 | 19.85 | 20.02 | 114,107 | +0.22(+1.11%) |
| Jul 24, 2012 | 20.05 | 20.05 | 19.64 | 19.80 | 259,014 | -0.21(-1.05%) |
| Jul 23, 2012 | 19.96 | 20.06 | 19.69 | 20.01 | 42,080 | -0.31(-1.51%) |
| Jul 20, 2012 | 20.57 | 20.57 | 20.30 | 20.32 | 65,996 | -0.29(-1.43%) |
| Jul 19, 2012 | 20.48 | 20.69 | 20.47 | 20.61 | 96,693 | +0.24(+1.18%) |
| Jul 18, 2012 | 19.85 | 20.45 | 19.85 | 20.37 | 57,841 | +0.50(+2.52%) |
| Jul 17, 2012 | 19.97 | 19.99 | 19.63 | 19.87 | 70,729 | +0.01(+0.05%) |
| Jul 16, 2012 | 19.92 | 19.95 | 19.77 | 19.86 | 164,715 | -0.12(-0.60%) |
| Jul 14, 2012 | 19.85 | 20.02 | 19.84 | 19.98 | 40,619 | +0.00(+0.00%) |
| Jul 13, 2012 | 19.85 | 20.02 | 19.84 | 19.98 | 40,619 | +0.20(+1.01%) |
| Jul 12, 2012 | 19.82 | 19.87 | 19.58 | 19.78 | 133,149 | -0.18(-0.90%) |
| Jul 11, 2012 | 20.06 | 20.15 | 19.84 | 19.96 | 138,595 | -0.10(-0.50%) |
| Jul 10, 2012 | 20.39 | 20.52 | 19.96 | 20.06 | 127,093 | -0.27(-1.33%) |
| Jul 09, 2012 | 20.54 | 20.55 | 20.23 | 20.33 | 951,697 | -0.23(-1.12%) |
| Jul 06, 2012 | 20.88 | 20.89 | 20.42 | 20.56 | 156,226 | -0.58(-2.74%) |
| Jul 05, 2012 | 21.11 | 21.23 | 20.93 | 21.14 | 116,574 | -0.03(-0.14%) |
| Jul 03, 2012 | 20.87 | 21.17 | 20.86 | 21.17 | 73,185 | +0.32(+1.53%) |
| Jul 02, 2012 | 20.90 | 20.96 | 20.70 | 20.85 | 567,019 | +0.03(+0.14%) |
| Jun 30, 2012 | 20.47 | 20.86 | 20.47 | 20.82 | 123,819 | -0.03(-0.14%) |
| Jun 29, 2012 | 20.47 | 20.86 | 20.47 | 20.85 | 127,780 | +0.81(+4.04%) |
| Jun 28, 2012 | 20.10 | 20.16 | 19.75 | 20.04 | 154,568 | -0.23(-1.13%) |
| Jun 27, 2012 | 20.16 | 20.33 | 20.09 | 20.27 | 119,007 | +0.21(+1.05%) |
| Jun 26, 2012 | 20.02 | 20.15 | 19.90 | 20.06 | 364,525 | +0.08(+0.40%) |
| Jun 25, 2012 | 20.33 | 20.33 | 19.92 | 19.98 | 81,590 | -0.57(-2.77%) |
| Jun 22, 2012 | 20.39 | 20.57 | 20.35 | 20.55 | 263,775 | +0.28(+1.38%) |
| Jun 21, 2012 | 20.97 | 20.97 | 20.25 | 20.27 | 57,008 | -0.73(-3.48%) |
| Jun 20, 2012 | 20.95 | 21.11 | 20.83 | 21.00 | 126,735 | +0.07(+0.33%) |
| Jun 19, 2012 | 20.90 | 21.00 | 20.88 | 20.93 | 144,100 | +0.17(+0.82%) |
| Jun 18, 2012 | 20.44 | 20.83 | 20.44 | 20.76 | 73,089 | +0.22(+1.07%) |
| Jun 15, 2012 | 20.18 | 20.55 | 20.18 | 20.54 | 151,746 | +0.40(+1.99%) |
| Jun 14, 2012 | 20.22 | 20.24 | 19.98 | 20.14 | 264,691 | -0.06(-0.30%) |
| Jun 13, 2012 | 20.40 | 20.51 | 20.14 | 20.20 | 80,234 | -0.21(-1.04%) |
| Jun 12, 2012 | 20.19 | 20.45 | 20.10 | 20.41 | 138,624 | +0.28(+1.41%) |
| Jun 11, 2012 | 20.82 | 20.82 | 20.11 | 20.13 | 460,522 | -0.47(-2.28%) |
| Jun 08, 2012 | 20.40 | 20.67 | 20.27 | 20.60 | 74,097 | +0.20(+0.98%) |
| Jun 07, 2012 | 20.85 | 20.85 | 20.38 | 20.40 | 262,078 | -0.18(-0.87%) |
| Jun 06, 2012 | 20.16 | 20.66 | 20.16 | 20.58 | 564,183 | +0.52(+2.59%) |
| Jun 05, 2012 | 19.64 | 20.07 | 19.64 | 20.06 | 125,479 | +0.39(+1.98%) |
| Jun 04, 2012 | 19.71 | 19.84 | 19.41 | 19.67 | 318,032 | +0.00(+0.00%) |
| Jun 02, 2012 | 19.99 | 20.01 | 19.64 | 19.67 | 246,570 | +0.00(+0.00%) |
| Jun 01, 2012 | 19.99 | 20.01 | 19.64 | 19.67 | 246,570 | -0.74(-3.63%) |
| May 31, 2012 | 20.54 | 20.54 | 20.14 | 20.41 | 280,284 | -0.14(-0.68%) |
| May 30, 2012 | 20.70 | 20.70 | 20.45 | 20.55 | 103,117 | -0.31(-1.49%) |
| May 29, 2012 | 20.75 | 20.93 | 20.68 | 20.86 | 46,411 | +0.27(+1.31%) |
| May 25, 2012 | 20.52 | 20.68 | 20.52 | 20.59 | 120,563 | +0.06(+0.29%) |
| May 24, 2012 | 20.88 | 20.88 | 20.39 | 20.53 | 59,009 | -0.33(-1.58%) |
| May 23, 2012 | 20.50 | 20.88 | 20.39 | 20.86 | 152,198 | +0.05(+0.24%) |
| May 22, 2012 | 20.82 | 20.96 | 20.68 | 20.81 | 122,791 | -0.02(-0.10%) |
| May 21, 2012 | 20.28 | 20.84 | 20.21 | 20.83 | 84,084 | +0.64(+3.15%) |
| May 18, 2012 | 20.82 | 20.82 | 20.19 | 20.19 | 103,276 | -0.47(-2.29%) |
| May 17, 2012 | 21.10 | 21.10 | 20.66 | 20.67 | 267,377 | -0.44(-2.09%) |
| May 16, 2012 | 21.51 | 21.59 | 21.09 | 21.11 | 79,805 | -0.35(-1.63%) |
| May 15, 2012 | 21.52 | 21.77 | 21.39 | 21.46 | 157,228 | -0.04(-0.19%) |
| May 14, 2012 | 21.48 | 21.64 | 21.38 | 21.50 | 571,789 | -0.19(-0.88%) |
| May 11, 2012 | 21.73 | 21.94 | 21.67 | 21.69 | 83,646 | +0.06(+0.28%) |
| May 10, 2012 | 22.00 | 22.00 | 21.55 | 21.63 | 191,449 | -0.22(-1.01%) |
| May 09, 2012 | 21.61 | 21.95 | 21.42 | 21.85 | 154,728 | -0.02(-0.09%) |
| May 08, 2012 | 21.91 | 21.91 | 21.44 | 21.87 | 182,812 | -0.16(-0.73%) |
| May 07, 2012 | 22.09 | 22.19 | 22.01 | 22.03 | 647,282 | -0.22(-0.99%) |
| May 04, 2012 | 22.62 | 22.62 | 22.16 | 22.25 | 889,897 | -0.51(-2.24%) |
| May 03, 2012 | 23.16 | 23.25 | 22.74 | 22.76 | 92,673 | -0.44(-1.90%) |
| May 02, 2012 | 23.04 | 23.24 | 22.94 | 23.20 | 203,439 | +0.08(+0.35%) |
| May 01, 2012 | 23.07 | 23.37 | 22.93 | 23.12 | 152,314 | +0.09(+0.39%) |
| Apr 30, 2012 | 23.19 | 23.19 | 22.98 | 23.03 | 1,148,054 | -0.18(-0.78%) |
| Apr 27, 2012 | 23.22 | 23.26 | 23.00 | 23.21 | 132,806 | -0.01(-0.04%) |
| Apr 26, 2012 | 22.90 | 23.26 | 22.90 | 23.22 | 277,128 | +0.36(+1.57%) |
| Apr 25, 2012 | 22.57 | 22.86 | 22.57 | 22.86 | 54,603 | +0.56(+2.51%) |
| Apr 24, 2012 | 22.40 | 22.51 | 22.19 | 22.30 | 165,314 | -0.17(-0.76%) |
| Apr 23, 2012 | 22.55 | 22.55 | 22.25 | 22.47 | 57,742 | -0.31(-1.36%) |
| Apr 20, 2012 | 23.02 | 23.06 | 22.76 | 22.78 | 1,205,398 | -0.25(-1.09%) |
| Apr 19, 2012 | 23.18 | 23.50 | 22.87 | 23.03 | 53,960 | -0.14(-0.60%) |
| Apr 18, 2012 | 23.15 | 23.21 | 23.04 | 23.17 | 60,574 | -0.06(-0.24%) |
| Apr 17, 2012 | 22.94 | 23.31 | 22.94 | 23.23 | 115,129 | +0.42(+1.82%) |
| Apr 16, 2012 | 23.05 | 23.06 | 22.67 | 22.81 | 1,115,896 | -0.09(-0.39%) |
| Apr 13, 2012 | 23.10 | 23.16 | 22.88 | 22.90 | 40,619 | -0.29(-1.25%) |
| Apr 12, 2012 | 22.73 | 23.22 | 22.73 | 23.19 | 64,095 | +0.46(+2.02%) |
| Apr 11, 2012 | 22.67 | 22.85 | 22.60 | 22.73 | 118,549 | +0.25(+1.12%) |
| Apr 10, 2012 | 22.91 | 23.00 | 22.46 | 22.48 | 150,696 | -0.46(-1.98%) |
| Apr 09, 2012 | 22.90 | 23.00 | 22.80 | 22.93 | 76,425 | -0.20(-0.85%) |
| Apr 05, 2012 | 23.11 | 23.15 | 23.01 | 23.13 | 79,832 | -0.02(-0.09%) |
| Apr 04, 2012 | 23.36 | 23.36 | 23.01 | 23.15 | 75,937 | -0.42(-1.78%) |
| Apr 03, 2012 | 23.69 | 23.75 | 23.44 | 23.57 | 137,107 | -0.16(-0.67%) |
| Apr 02, 2012 | 23.60 | 23.81 | 23.45 | 23.73 | 668,891 | +0.05(+0.21%) |
| Mar 30, 2012 | 23.77 | 23.77 | 23.49 | 23.68 | 77,012 | +0.02(+0.08%) |
| Mar 29, 2012 | 23.55 | 23.70 | 23.40 | 23.66 | 69,384 | +0.01(+0.04%) |
| Mar 28, 2012 | 23.82 | 23.84 | 23.47 | 23.65 | 128,401 | -0.19(-0.80%) |
| Mar 27, 2012 | 23.90 | 23.99 | 23.84 | 23.84 | 72,960 | -0.03(-0.13%) |
| Mar 26, 2012 | 23.66 | 23.89 | 23.63 | 23.87 | 216,744 | +0.40(+1.70%) |
| Mar 23, 2012 | 23.42 | 23.50 | 23.20 | 23.47 | 74,382 | +0.07(+0.30%) |
| Mar 22, 2012 | 23.38 | 23.46 | 23.24 | 23.40 | 71,818 | -0.14(-0.59%) |
| Mar 21, 2012 | 23.51 | 23.63 | 23.45 | 23.54 | 51,220 | +0.07(+0.30%) |
| Mar 20, 2012 | 23.43 | 23.53 | 23.28 | 23.47 | 52,190 | -0.15(-0.64%) |
| Mar 19, 2012 | 23.48 | 23.73 | 23.48 | 23.62 | 54,698 | +0.14(+0.60%) |
| Mar 16, 2012 | 23.58 | 23.58 | 23.41 | 23.48 | 46,672 | -0.03(-0.13%) |
| Mar 15, 2012 | 23.30 | 23.52 | 23.24 | 23.51 | 79,955 | +0.25(+1.07%) |
| Mar 14, 2012 | 23.33 | 23.45 | 23.16 | 23.26 | 90,208 | -0.06(-0.26%) |
| Mar 13, 2012 | 22.98 | 23.32 | 22.98 | 23.32 | 71,797 | +0.45(+1.97%) |
| Mar 12, 2012 | 22.92 | 22.98 | 22.76 | 22.87 | 55,085 | -0.10(-0.44%) |
| Mar 09, 2012 | 22.83 | 23.01 | 22.83 | 22.97 | 123,202 | +0.18(+0.79%) |
| Mar 08, 2012 | 22.66 | 22.85 | 22.61 | 22.79 | 73,295 | +0.30(+1.33%) |
| Mar 07, 2012 | 22.32 | 22.53 | 22.31 | 22.49 | 113,139 | +0.28(+1.26%) |
| Mar 06, 2012 | 22.33 | 22.33 | 22.09 | 22.21 | 113,988 | -0.35(-1.55%) |
| Mar 05, 2012 | 22.88 | 22.88 | 22.46 | 22.56 | 134,128 | -0.38(-1.66%) |
| Mar 02, 2012 | 23.14 | 23.22 | 22.89 | 22.94 | 80,321 | -0.18(-0.78%) |