| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Feb 29, 2012 | 66.57 | 66.97 | 66.08 | 66.17 | 1,451,794 | -0.77(-1.15%) |
| Feb 28, 2012 | 66.99 | 67.32 | 66.46 | 66.94 | 1,093,614 | +0.01(+0.01%) |
| Feb 27, 2012 | 66.86 | 67.47 | 66.53 | 66.93 | 1,309,374 | -0.28(-0.42%) |
| Feb 24, 2012 | 67.80 | 67.98 | 67.05 | 67.21 | 1,106,465 | -0.29(-0.43%) |
| Feb 23, 2012 | 66.16 | 67.79 | 66.14 | 67.50 | 1,138,332 | +1.26(+1.90%) |
| Feb 22, 2012 | 66.20 | 66.66 | 65.95 | 66.24 | 1,227,556 | +0.12(+0.18%) |
| Feb 21, 2012 | 66.38 | 66.38 | 65.57 | 66.12 | 1,048,547 | +0.01(+0.02%) |
| Feb 17, 2012 | 66.05 | 66.31 | 65.48 | 66.11 | 1,289,812 | -0.09(-0.14%) |
| Feb 16, 2012 | 63.84 | 66.26 | 63.80 | 66.20 | 1,610,820 | +2.61(+4.10%) |
| Feb 15, 2012 | 65.55 | 65.60 | 63.56 | 63.59 | 1,847,894 | -1.89(-2.89%) |
| Feb 14, 2012 | 64.45 | 65.48 | 64.12 | 65.48 | 1,728,096 | +0.73(+1.13%) |
| Feb 13, 2012 | 63.77 | 64.76 | 63.68 | 64.75 | 1,033,324 | +1.25(+1.97%) |
| Feb 10, 2012 | 63.26 | 63.60 | 62.84 | 63.50 | 1,179,736 | -0.15(-0.23%) |
| Feb 09, 2012 | 63.84 | 63.84 | 63.48 | 63.65 | 1,351,126 | +0.05(+0.07%) |
| Feb 08, 2012 | 63.99 | 64.20 | 63.43 | 63.60 | 1,148,451 | -0.49(-0.76%) |
| Feb 07, 2012 | 63.98 | 64.29 | 63.48 | 64.09 | 944,267 | +0.05(+0.09%) |
| Feb 06, 2012 | 64.07 | 64.28 | 63.88 | 64.04 | 1,242,822 | -0.38(-0.59%) |
| Feb 03, 2012 | 64.78 | 65.00 | 64.29 | 64.42 | 1,369,421 | +0.42(+0.65%) |
| Feb 02, 2012 | 64.87 | 65.49 | 63.99 | 64.00 | 2,778,632 | -0.01(-0.02%) |
| Feb 01, 2012 | 64.90 | 65.20 | 63.37 | 64.01 | 6,750,482 | -4.83(-7.02%) |
| Jan 31, 2012 | 68.24 | 68.94 | 67.40 | 68.84 | 1,783,177 | +0.91(+1.34%) |
| Jan 30, 2012 | 68.27 | 68.30 | 67.75 | 67.93 | 1,187,238 | -0.59(-0.86%) |
| Jan 27, 2012 | 69.33 | 69.36 | 68.21 | 68.52 | 1,455,943 | -0.95(-1.37%) |
| Jan 26, 2012 | 68.53 | 69.89 | 68.30 | 69.47 | 1,599,299 | +1.36(+2.00%) |
| Jan 25, 2012 | 67.43 | 68.16 | 67.00 | 68.11 | 1,293,902 | +0.48(+0.71%) |
| Jan 24, 2012 | 67.81 | 67.98 | 67.24 | 67.63 | 1,338,351 | -0.42(-0.62%) |
| Jan 23, 2012 | 67.56 | 68.23 | 66.79 | 68.05 | 1,278,193 | +0.39(+0.58%) |
| Jan 20, 2012 | 68.87 | 68.87 | 67.36 | 67.66 | 1,405,396 | -1.21(-1.76%) |
| Jan 19, 2012 | 67.30 | 68.91 | 67.28 | 68.87 | 1,257,465 | +1.58(+2.35%) |
| Jan 18, 2012 | 66.49 | 67.33 | 66.27 | 67.29 | 933,272 | +0.82(+1.23%) |
| Jan 17, 2012 | 67.00 | 67.20 | 66.02 | 66.47 | 827,649 | -0.26(-0.39%) |
| Jan 13, 2012 | 66.37 | 66.86 | 65.28 | 66.73 | 1,027,200 | +0.39(+0.59%) |
| Jan 12, 2012 | 66.68 | 67.03 | 66.29 | 66.34 | 1,042,940 | -0.18(-0.27%) |
| Jan 11, 2012 | 67.25 | 67.67 | 65.92 | 66.52 | 1,774,703 | -0.85(-1.26%) |
| Jan 10, 2012 | 68.39 | 68.94 | 67.33 | 67.37 | 1,131,310 | -0.21(-0.31%) |
| Jan 09, 2012 | 68.04 | 68.15 | 67.26 | 67.58 | 782,464 | -0.40(-0.59%) |
| Jan 06, 2012 | 67.80 | 68.36 | 67.67 | 67.98 | 724,066 | +0.17(+0.25%) |
| Jan 05, 2012 | 67.71 | 67.97 | 66.50 | 67.81 | 1,698,781 | -0.91(-1.32%) |
| Jan 04, 2012 | 69.70 | 69.70 | 68.69 | 68.72 | 864,039 | -1.06(-1.52%) |
| Dec 30, 2011 | 70.08 | 70.50 | 69.75 | 69.78 | 407,131 | -0.30(-0.43%) |
| Dec 29, 2011 | 69.87 | 70.13 | 69.39 | 70.08 | 499,375 | +0.53(+0.76%) |
| Dec 28, 2011 | 70.82 | 70.92 | 69.42 | 69.55 | 614,101 | -1.18(-1.67%) |
| Dec 27, 2011 | 69.90 | 71.01 | 69.63 | 70.73 | 466,177 | +0.71(+1.01%) |
| Dec 23, 2011 | 69.69 | 70.11 | 69.52 | 70.02 | 492,113 | +1.53(+2.23%) |
| Dec 21, 2011 | 68.42 | 68.65 | 67.59 | 68.49 | 685,976 | +0.26(+0.38%) |
| Dec 20, 2011 | 66.42 | 68.32 | 66.29 | 68.23 | 909,442 | +2.79(+4.26%) |
| Dec 19, 2011 | 67.09 | 67.49 | 65.29 | 65.44 | 623,041 | -1.15(-1.73%) |
| Dec 16, 2011 | 66.92 | 68.26 | 66.39 | 66.59 | 1,260,558 | -0.10(-0.15%) |
| Dec 15, 2011 | 67.14 | 67.34 | 66.39 | 66.69 | 570,432 | +0.38(+0.57%) |
| Dec 14, 2011 | 66.57 | 67.02 | 66.22 | 66.31 | 732,305 | -0.39(-0.58%) |
| Dec 13, 2011 | 68.19 | 68.53 | 66.28 | 66.70 | 733,512 | -0.96(-1.42%) |
| Dec 12, 2011 | 67.93 | 68.08 | 66.92 | 67.66 | 632,542 | -0.78(-1.14%) |
| Dec 09, 2011 | 67.76 | 68.76 | 67.50 | 68.44 | 626,513 | +1.19(+1.77%) |
| Dec 08, 2011 | 68.51 | 68.51 | 67.07 | 67.25 | 776,326 | -1.56(-2.27%) |
| Dec 07, 2011 | 68.19 | 69.22 | 67.81 | 68.81 | 906,825 | +0.27(+0.39%) |
| Dec 06, 2011 | 70.22 | 70.22 | 68.40 | 68.54 | 1,352,110 | -0.96(-1.38%) |
| Dec 05, 2011 | 68.93 | 69.50 | 68.82 | 69.50 | 1,032,285 | +1.52(+2.24%) |
| Dec 02, 2011 | 67.96 | 68.89 | 67.82 | 67.98 | 685,854 | +0.33(+0.49%) |