| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Mar 30, 2012 | 65.01 | 65.99 | 64.78 | 65.49 | 1,356,950 | +0.73(+1.13%) |
| Mar 29, 2012 | 64.82 | 65.00 | 64.06 | 64.76 | 1,807,371 | -0.35(-0.54%) |
| Mar 28, 2012 | 65.52 | 65.61 | 64.63 | 65.11 | 719,386 | -0.24(-0.37%) |
| Mar 27, 2012 | 65.14 | 65.37 | 64.64 | 65.35 | 746,021 | +0.16(+0.25%) |
| Mar 26, 2012 | 65.11 | 65.29 | 64.69 | 65.19 | 839,066 | +0.77(+1.20%) |
| Mar 23, 2012 | 64.68 | 64.76 | 63.88 | 64.42 | 606,229 | -0.08(-0.12%) |
| Mar 22, 2012 | 64.36 | 64.64 | 63.62 | 64.50 | 960,430 | -0.50(-0.77%) |
| Mar 21, 2012 | 64.45 | 65.09 | 63.95 | 65.00 | 993,461 | +0.50(+0.78%) |
| Mar 20, 2012 | 65.38 | 65.46 | 64.39 | 64.50 | 1,226,856 | -1.12(-1.71%) |
| Mar 19, 2012 | 65.66 | 66.01 | 65.43 | 65.62 | 813,822 | -0.05(-0.08%) |
| Mar 16, 2012 | 65.14 | 65.86 | 64.97 | 65.67 | 1,740,669 | +0.32(+0.49%) |
| Mar 15, 2012 | 65.32 | 65.51 | 64.90 | 65.35 | 2,096,525 | +0.00(+0.00%) |
| Mar 14, 2012 | 66.39 | 66.39 | 65.21 | 65.35 | 1,093,817 | -1.05(-1.58%) |
| Mar 13, 2012 | 66.35 | 66.66 | 65.75 | 66.40 | 1,271,399 | +0.46(+0.70%) |
| Mar 12, 2012 | 66.62 | 66.66 | 65.43 | 65.94 | 722,925 | -0.41(-0.62%) |
| Mar 09, 2012 | 65.92 | 66.39 | 65.31 | 66.35 | 598,629 | +0.59(+0.90%) |
| Mar 08, 2012 | 65.43 | 65.93 | 65.05 | 65.76 | 765,221 | +0.70(+1.08%) |
| Mar 07, 2012 | 65.13 | 65.23 | 64.53 | 65.06 | 739,492 | +0.16(+0.25%) |
| Mar 06, 2012 | 65.25 | 65.30 | 64.68 | 64.90 | 1,030,328 | -0.82(-1.26%) |
| Mar 05, 2012 | 66.16 | 66.27 | 65.37 | 65.72 | 893,375 | -0.50(-0.75%) |
| Mar 02, 2012 | 66.72 | 66.93 | 66.14 | 66.22 | 857,102 | -0.63(-0.94%) |
| Mar 01, 2012 | 66.33 | 67.40 | 66.23 | 66.85 | 1,262,141 | +0.68(+1.03%) |
| 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%) |