| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Feb 29, 2012 | 61.40 | 61.61 | 59.99 | 61.30 | 2,063,562 | -0.07(-0.11%) |
| Feb 28, 2012 | 62.54 | 62.65 | 60.82 | 61.37 | 1,328,140 | -0.79(-1.27%) |
| Feb 27, 2012 | 62.16 | 62.52 | 61.36 | 62.16 | 1,048,463 | -0.56(-0.89%) |
| Feb 24, 2012 | 62.94 | 63.23 | 62.30 | 62.72 | 1,101,281 | +0.02(+0.03%) |
| Feb 23, 2012 | 63.15 | 63.57 | 61.91 | 62.70 | 1,181,240 | -0.40(-0.63%) |
| Feb 22, 2012 | 62.48 | 63.92 | 62.28 | 63.10 | 1,395,196 | +0.82(+1.32%) |
| Feb 21, 2012 | 63.73 | 64.20 | 61.93 | 62.28 | 1,550,121 | -1.00(-1.58%) |
| Feb 17, 2012 | 61.98 | 64.00 | 61.57 | 63.28 | 3,341,033 | +2.96(+4.91%) |
| Feb 16, 2012 | 58.94 | 60.42 | 58.63 | 60.32 | 1,681,232 | +1.49(+2.53%) |
| Feb 15, 2012 | 59.30 | 59.70 | 58.22 | 58.83 | 2,186,198 | -0.26(-0.44%) |
| Feb 14, 2012 | 59.12 | 59.65 | 58.44 | 59.09 | 968,351 | -0.22(-0.37%) |
| Feb 13, 2012 | 59.08 | 59.52 | 58.65 | 59.31 | 1,662,241 | +0.04(+0.07%) |
| Feb 10, 2012 | 58.96 | 59.56 | 58.65 | 59.27 | 1,250,489 | -0.67(-1.12%) |
| Feb 09, 2012 | 60.85 | 60.92 | 59.54 | 59.94 | 1,665,038 | -0.85(-1.40%) |
| Feb 08, 2012 | 60.98 | 61.72 | 60.50 | 60.79 | 1,632,167 | -0.19(-0.31%) |
| Feb 07, 2012 | 60.67 | 61.18 | 59.19 | 60.98 | 1,617,142 | +0.03(+0.05%) |
| Feb 06, 2012 | 61.02 | 61.50 | 60.46 | 60.95 | 1,721,019 | -0.67(-1.09%) |
| Feb 03, 2012 | 62.76 | 62.88 | 61.22 | 61.62 | 1,480,166 | -0.19(-0.31%) |
| Feb 02, 2012 | 61.53 | 62.45 | 60.83 | 61.81 | 2,084,556 | +0.31(+0.50%) |
| Feb 01, 2012 | 62.75 | 63.00 | 60.25 | 61.50 | 2,217,443 | -0.21(-0.34%) |
| Jan 31, 2012 | 63.88 | 64.36 | 59.50 | 61.71 | 3,442,911 | +1.38(+2.29%) |
| Jan 30, 2012 | 60.06 | 60.98 | 58.86 | 60.33 | 1,843,549 | -0.24(-0.40%) |
| Jan 27, 2012 | 60.57 | 61.26 | 60.11 | 60.57 | 1,639,671 | -0.19(-0.31%) |
| Jan 26, 2012 | 63.21 | 63.95 | 60.35 | 60.76 | 1,774,670 | -2.19(-3.48%) |
| Jan 25, 2012 | 61.08 | 63.18 | 59.82 | 62.95 | 1,696,819 | +1.42(+2.31%) |
| Jan 24, 2012 | 59.36 | 61.62 | 59.21 | 61.53 | 1,489,611 | +1.14(+1.89%) |
| Jan 23, 2012 | 59.50 | 61.17 | 58.32 | 60.39 | 2,647,261 | +0.85(+1.43%) |
| Jan 20, 2012 | 60.70 | 61.56 | 59.08 | 59.54 | 2,096,822 | -1.35(-2.22%) |
| Jan 19, 2012 | 61.01 | 61.77 | 60.51 | 60.89 | 2,225,877 | -0.11(-0.18%) |
| Jan 18, 2012 | 57.49 | 61.22 | 57.24 | 61.00 | 2,781,824 | +3.66(+6.38%) |
| Jan 17, 2012 | 58.46 | 59.34 | 56.17 | 57.34 | 3,123,922 | -1.17(-2.00%) |
| Jan 13, 2012 | 58.79 | 59.89 | 58.00 | 58.51 | 1,784,719 | -0.79(-1.33%) |
| Jan 12, 2012 | 62.27 | 62.70 | 59.13 | 59.30 | 3,279,278 | -2.89(-4.65%) |
| Jan 11, 2012 | 64.67 | 64.79 | 61.99 | 62.19 | 2,219,262 | -2.94(-4.51%) |
| Jan 10, 2012 | 66.04 | 68.60 | 64.89 | 65.13 | 3,237,608 | +0.83(+1.29%) |
| Jan 09, 2012 | 63.79 | 64.74 | 63.60 | 64.30 | 1,235,339 | +0.68(+1.07%) |
| Jan 06, 2012 | 63.24 | 63.98 | 62.86 | 63.62 | 1,279,071 | +0.58(+0.92%) |
| Jan 05, 2012 | 61.55 | 63.27 | 61.20 | 63.04 | 1,839,833 | +0.47(+0.75%) |
| Jan 04, 2012 | 61.42 | 62.65 | 60.99 | 62.57 | 1,434,304 | +4.21(+7.21%) |
| Dec 30, 2011 | 58.26 | 59.04 | 58.26 | 58.36 | 1,001,143 | +0.10(+0.17%) |
| Dec 29, 2011 | 57.50 | 58.70 | 57.36 | 58.26 | 703,641 | +0.68(+1.18%) |
| Dec 28, 2011 | 59.22 | 59.26 | 57.32 | 57.58 | 905,131 | -1.48(-2.51%) |
| Dec 27, 2011 | 58.88 | 59.57 | 58.41 | 59.06 | 709,613 | +0.06(+0.10%) |
| Dec 23, 2011 | 58.68 | 59.04 | 58.28 | 59.00 | 599,738 | +1.28(+2.22%) |
| Dec 21, 2011 | 58.33 | 58.82 | 56.30 | 57.72 | 1,388,541 | -0.35(-0.60%) |
| Dec 20, 2011 | 55.99 | 58.28 | 55.91 | 58.07 | 2,533,193 | +3.63(+6.67%) |
| Dec 19, 2011 | 56.18 | 56.42 | 54.29 | 54.44 | 1,220,534 | -1.34(-2.40%) |
| Dec 16, 2011 | 54.52 | 55.88 | 54.00 | 55.78 | 1,855,270 | +1.90(+3.53%) |
| Dec 15, 2011 | 54.80 | 55.03 | 53.61 | 53.88 | 1,367,873 | -0.25(-0.46%) |
| Dec 14, 2011 | 56.19 | 56.20 | 53.43 | 54.13 | 1,974,484 | -3.19(-5.57%) |
| Dec 13, 2011 | 58.50 | 60.04 | 56.67 | 57.32 | 1,557,466 | -0.73(-1.26%) |
| Dec 12, 2011 | 59.33 | 59.33 | 57.05 | 58.05 | 1,157,363 | -2.53(-4.18%) |
| Dec 09, 2011 | 58.62 | 60.88 | 58.50 | 60.58 | 1,264,768 | +1.81(+3.08%) |
| Dec 08, 2011 | 59.49 | 60.02 | 58.58 | 58.77 | 2,172,881 | -0.82(-1.38%) |
| Dec 07, 2011 | 59.36 | 59.83 | 58.38 | 59.59 | 2,097,760 | -0.17(-0.28%) |
| Dec 06, 2011 | 59.36 | 60.47 | 58.95 | 59.76 | 1,474,311 | +0.57(+0.96%) |
| Dec 05, 2011 | 59.33 | 60.56 | 58.50 | 59.19 | 1,716,575 | +0.88(+1.51%) |
| Dec 02, 2011 | 58.67 | 59.45 | 57.95 | 58.31 | 1,861,286 | +0.46(+0.80%) |