| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Feb 29, 2012 | 47.05 | 47.17 | 46.58 | 46.68 | 1,768,216 | -0.28(-0.60%) |
| Feb 28, 2012 | 46.68 | 46.96 | 46.50 | 46.96 | 1,064,302 | +0.44(+0.95%) |
| Feb 27, 2012 | 46.27 | 46.65 | 46.09 | 46.52 | 725,795 | -0.20(-0.43%) |
| Feb 24, 2012 | 46.60 | 46.78 | 46.58 | 46.72 | 744,331 | +0.23(+0.49%) |
| Feb 23, 2012 | 46.27 | 46.50 | 46.06 | 46.49 | 822,995 | +0.20(+0.43%) |
| Feb 22, 2012 | 46.31 | 46.39 | 46.19 | 46.29 | 417,809 | -0.10(-0.22%) |
| Feb 21, 2012 | 46.56 | 46.63 | 46.25 | 46.39 | 707,978 | +0.09(+0.19%) |
| Feb 17, 2012 | 46.28 | 46.42 | 46.16 | 46.30 | 644,460 | +0.13(+0.28%) |
| Feb 16, 2012 | 45.64 | 46.23 | 45.55 | 46.17 | 835,475 | +0.56(+1.23%) |
| Feb 15, 2012 | 46.00 | 46.02 | 45.55 | 45.61 | 1,029,658 | -0.11(-0.24%) |
| Feb 14, 2012 | 45.78 | 45.81 | 45.37 | 45.72 | 540,904 | -0.22(-0.48%) |
| Feb 13, 2012 | 45.91 | 45.98 | 45.72 | 45.94 | 425,593 | +0.50(+1.10%) |
| Feb 10, 2012 | 45.50 | 45.50 | 45.25 | 45.44 | 546,336 | -0.58(-1.26%) |
| Feb 09, 2012 | 46.07 | 46.16 | 45.82 | 46.02 | 920,506 | +0.01(+0.02%) |
| Feb 08, 2012 | 45.97 | 46.15 | 45.78 | 46.01 | 1,253,029 | +0.13(+0.28%) |
| Feb 07, 2012 | 45.51 | 45.95 | 45.48 | 45.88 | 1,040,463 | +0.17(+0.37%) |
| Feb 06, 2012 | 45.56 | 45.71 | 45.46 | 45.71 | 629,939 | -0.19(-0.41%) |
| Feb 03, 2012 | 45.65 | 45.90 | 45.52 | 45.90 | 775,088 | +0.64(+1.41%) |
| Feb 02, 2012 | 45.16 | 45.39 | 45.05 | 45.26 | 1,000,551 | +0.21(+0.47%) |
| Feb 01, 2012 | 44.97 | 45.30 | 44.95 | 45.05 | 1,871,479 | +0.57(+1.28%) |
| Jan 31, 2012 | 44.85 | 44.86 | 44.31 | 44.48 | 1,128,588 | +0.09(+0.20%) |
| Jan 30, 2012 | 44.20 | 44.50 | 44.01 | 44.39 | 996,289 | -0.36(-0.80%) |
| Jan 27, 2012 | 44.50 | 44.82 | 44.50 | 44.75 | 507,061 | +0.05(+0.11%) |
| Jan 26, 2012 | 44.99 | 45.16 | 44.52 | 44.70 | 463,314 | -0.05(-0.11%) |
| Jan 25, 2012 | 44.25 | 44.88 | 44.05 | 44.75 | 626,088 | +0.41(+0.92%) |
| Jan 24, 2012 | 44.00 | 44.38 | 43.99 | 44.34 | 985,695 | -0.13(-0.29%) |
| Jan 23, 2012 | 44.38 | 44.66 | 44.28 | 44.47 | 384,828 | +0.17(+0.38%) |
| Jan 20, 2012 | 44.12 | 44.34 | 44.10 | 44.30 | 296,157 | +0.08(+0.18%) |
| Jan 19, 2012 | 44.14 | 44.30 | 44.00 | 44.22 | 320,655 | +0.37(+0.84%) |
| Jan 18, 2012 | 43.27 | 43.89 | 43.26 | 43.85 | 408,032 | +0.67(+1.55%) |
| Jan 17, 2012 | 43.28 | 43.49 | 43.14 | 43.18 | 694,892 | +0.36(+0.84%) |
| Jan 13, 2012 | 42.79 | 42.87 | 42.44 | 42.82 | 382,065 | -0.35(-0.81%) |
| Jan 12, 2012 | 43.21 | 43.31 | 42.88 | 43.17 | 390,181 | +0.02(+0.05%) |
| Jan 11, 2012 | 42.94 | 43.21 | 42.78 | 43.15 | 431,563 | +0.15(+0.35%) |
| Jan 10, 2012 | 43.25 | 43.29 | 43.00 | 43.00 | 715,999 | +0.38(+0.89%) |
| Jan 09, 2012 | 42.58 | 42.64 | 42.37 | 42.62 | 858,801 | +0.15(+0.35%) |
| Jan 06, 2012 | 42.78 | 42.78 | 42.36 | 42.47 | 611,754 | -0.33(-0.77%) |
| Jan 05, 2012 | 42.54 | 42.89 | 42.33 | 42.80 | 267,141 | -0.17(-0.40%) |
| Jan 04, 2012 | 42.94 | 43.02 | 42.65 | 42.97 | 717,097 | +0.80(+1.90%) |
| Dec 30, 2011 | 42.15 | 42.35 | 42.09 | 42.17 | 1,673,274 | -0.02(-0.05%) |
| Dec 29, 2011 | 41.84 | 42.24 | 41.72 | 42.19 | 929,699 | +0.50(+1.20%) |
| Dec 28, 2011 | 42.15 | 42.26 | 41.63 | 41.69 | 1,077,729 | -0.60(-1.42%) |
| Dec 27, 2011 | 42.25 | 42.41 | 42.25 | 42.29 | 1,558,360 | -0.07(-0.17%) |
| Dec 23, 2011 | 41.99 | 42.39 | 41.99 | 42.36 | 1,144,997 | +0.67(+1.61%) |
| Dec 21, 2011 | 41.55 | 41.74 | 41.26 | 41.69 | 1,118,192 | -0.03(-0.07%) |
| Dec 20, 2011 | 41.21 | 41.79 | 41.17 | 41.72 | 962,668 | +0.88(+2.15%) |
| Dec 19, 2011 | 41.30 | 41.50 | 40.71 | 40.84 | 1,070,947 | -0.51(-1.23%) |
| Dec 16, 2011 | 41.58 | 41.74 | 41.14 | 41.35 | 827,688 | -0.05(-0.12%) |
| Dec 15, 2011 | 41.59 | 41.69 | 41.25 | 41.40 | 532,590 | +0.26(+0.63%) |
| Dec 14, 2011 | 41.37 | 41.56 | 40.98 | 41.14 | 518,882 | -0.45(-1.08%) |
| Dec 13, 2011 | 42.43 | 42.62 | 41.48 | 41.59 | 448,558 | -0.56(-1.33%) |
| Dec 12, 2011 | 42.40 | 42.40 | 41.82 | 42.15 | 812,465 | -0.96(-2.23%) |
| Dec 09, 2011 | 42.55 | 43.18 | 42.52 | 43.11 | 331,737 | +0.81(+1.91%) |
| Dec 08, 2011 | 43.00 | 43.06 | 42.20 | 42.30 | 494,843 | -1.17(-2.69%) |
| Dec 07, 2011 | 43.01 | 43.61 | 42.73 | 43.47 | 679,401 | +0.24(+0.56%) |
| Dec 06, 2011 | 43.27 | 43.44 | 42.95 | 43.23 | 1,197,147 | -0.08(-0.18%) |
| Dec 05, 2011 | 43.70 | 43.70 | 43.09 | 43.31 | 472,413 | +0.42(+0.98%) |
| Dec 02, 2011 | 43.42 | 43.45 | 42.84 | 42.89 | 401,644 | -0.02(-0.05%) |