| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Feb 29, 2012 | 41.13 | 41.61 | 40.34 | 40.39 | 955,999 | -0.75(-1.82%) |
| Feb 28, 2012 | 41.17 | 41.68 | 40.88 | 41.14 | 432,041 | -0.30(-0.72%) |
| Feb 27, 2012 | 41.25 | 41.77 | 40.61 | 41.44 | 447,923 | -0.16(-0.38%) |
| Feb 24, 2012 | 41.88 | 42.02 | 41.34 | 41.60 | 450,977 | -0.15(-0.36%) |
| Feb 23, 2012 | 40.00 | 41.87 | 39.90 | 41.75 | 722,149 | +1.18(+2.91%) |
| Feb 22, 2012 | 40.83 | 41.00 | 40.14 | 40.57 | 499,091 | -0.72(-1.74%) |
| Feb 21, 2012 | 41.99 | 42.58 | 41.13 | 41.29 | 652,326 | -0.45(-1.08%) |
| Feb 17, 2012 | 42.88 | 43.07 | 41.58 | 41.74 | 472,098 | -0.87(-2.04%) |
| Feb 16, 2012 | 42.43 | 43.34 | 41.83 | 42.61 | 742,842 | +0.26(+0.61%) |
| Feb 15, 2012 | 43.18 | 43.74 | 42.09 | 42.35 | 529,867 | -0.72(-1.67%) |
| Feb 14, 2012 | 43.68 | 43.69 | 42.61 | 43.07 | 524,001 | -0.77(-1.76%) |
| Feb 13, 2012 | 42.86 | 44.01 | 42.79 | 43.84 | 726,567 | +1.68(+3.98%) |
| Feb 10, 2012 | 42.13 | 42.38 | 40.52 | 42.16 | 665,064 | -0.23(-0.54%) |
| Feb 09, 2012 | 42.80 | 43.22 | 42.30 | 42.39 | 604,417 | -0.38(-0.89%) |
| Feb 08, 2012 | 43.55 | 43.91 | 42.28 | 42.77 | 661,436 | -0.45(-1.04%) |
| Feb 07, 2012 | 44.49 | 44.66 | 42.84 | 43.22 | 721,818 | -1.69(-3.76%) |
| Feb 06, 2012 | 43.13 | 45.00 | 43.13 | 44.91 | 680,557 | +1.40(+3.22%) |
| Feb 03, 2012 | 43.09 | 43.63 | 42.97 | 43.51 | 771,812 | +0.56(+1.30%) |
| Feb 02, 2012 | 43.44 | 43.84 | 42.70 | 42.95 | 796,683 | -0.26(-0.60%) |
| Feb 01, 2012 | 43.28 | 44.04 | 42.78 | 43.21 | 1,152,147 | -0.85(-1.93%) |
| Jan 31, 2012 | 42.93 | 44.83 | 42.68 | 44.06 | 1,484,272 | +1.40(+3.28%) |
| Jan 30, 2012 | 41.53 | 42.66 | 41.00 | 42.66 | 1,821,307 | -0.48(-1.11%) |
| Jan 27, 2012 | 40.80 | 43.47 | 40.30 | 43.14 | 5,660,013 | +8.79(+25.59%) |
| Jan 26, 2012 | 34.56 | 34.80 | 33.42 | 34.35 | 1,051,855 | -0.04(-0.12%) |
| Jan 25, 2012 | 37.10 | 37.39 | 33.86 | 34.39 | 1,360,284 | +1.61(+4.91%) |
| Jan 24, 2012 | 32.32 | 33.10 | 32.03 | 32.78 | 449,136 | +0.39(+1.20%) |
| Jan 23, 2012 | 32.53 | 32.92 | 31.86 | 32.39 | 877,831 | -0.17(-0.52%) |
| Jan 20, 2012 | 33.56 | 34.08 | 32.52 | 32.56 | 799,410 | -1.10(-3.27%) |
| Jan 19, 2012 | 35.21 | 35.69 | 33.51 | 33.66 | 869,725 | -1.39(-3.97%) |
| Jan 18, 2012 | 36.50 | 36.50 | 34.25 | 35.05 | 718,945 | -1.45(-3.97%) |
| Jan 17, 2012 | 36.00 | 36.70 | 35.75 | 36.50 | 382,147 | +0.77(+2.16%) |
| Jan 13, 2012 | 35.09 | 35.74 | 35.09 | 35.73 | 198,571 | +0.16(+0.45%) |
| Jan 12, 2012 | 35.79 | 35.93 | 35.31 | 35.57 | 241,564 | -0.21(-0.59%) |
| Jan 11, 2012 | 35.17 | 36.00 | 34.76 | 35.78 | 280,026 | +0.59(+1.68%) |
| Jan 10, 2012 | 35.43 | 35.65 | 34.93 | 35.19 | 248,631 | +0.11(+0.31%) |
| Jan 09, 2012 | 35.03 | 35.18 | 34.53 | 35.08 | 381,835 | +0.43(+1.24%) |
| Jan 06, 2012 | 34.93 | 35.24 | 34.03 | 34.65 | 736,343 | +0.37(+1.08%) |
| Jan 05, 2012 | 33.87 | 34.40 | 33.46 | 34.28 | 321,700 | +0.25(+0.73%) |
| Jan 04, 2012 | 33.72 | 34.48 | 33.72 | 34.03 | 366,582 | -0.38(-1.10%) |
| Dec 30, 2011 | 33.77 | 34.61 | 33.64 | 34.41 | 360,582 | +0.45(+1.33%) |
| Dec 29, 2011 | 33.80 | 34.33 | 33.47 | 33.96 | 292,908 | +0.20(+0.59%) |
| Dec 28, 2011 | 33.89 | 34.14 | 33.37 | 33.76 | 513,900 | -0.10(-0.30%) |
| Dec 27, 2011 | 32.93 | 33.92 | 32.80 | 33.86 | 278,793 | +0.75(+2.27%) |
| Dec 23, 2011 | 32.40 | 33.29 | 32.16 | 33.11 | 232,223 | +0.51(+1.56%) |
| Dec 21, 2011 | 33.00 | 33.12 | 32.02 | 32.60 | 441,683 | -0.43(-1.30%) |
| Dec 20, 2011 | 32.44 | 33.13 | 32.33 | 33.03 | 567,904 | +1.34(+4.23%) |
| Dec 19, 2011 | 31.72 | 31.89 | 31.22 | 31.69 | 698,336 | +0.29(+0.92%) |
| Dec 16, 2011 | 30.53 | 31.44 | 30.51 | 31.40 | 850,724 | +1.15(+3.80%) |
| Dec 15, 2011 | 30.66 | 30.87 | 30.06 | 30.25 | 527,467 | +0.17(+0.57%) |
| Dec 14, 2011 | 30.99 | 31.40 | 29.90 | 30.08 | 645,749 | -1.16(-3.71%) |
| Dec 13, 2011 | 32.26 | 33.31 | 31.10 | 31.24 | 576,300 | -1.25(-3.85%) |
| Dec 12, 2011 | 32.47 | 32.52 | 32.02 | 32.49 | 402,156 | -0.45(-1.37%) |
| Dec 09, 2011 | 32.35 | 33.20 | 32.35 | 32.94 | 414,024 | +0.70(+2.17%) |
| Dec 08, 2011 | 33.46 | 33.79 | 32.24 | 32.24 | 438,681 | -1.69(-4.98%) |
| Dec 07, 2011 | 34.13 | 34.32 | 33.12 | 33.93 | 357,159 | -0.40(-1.17%) |
| Dec 06, 2011 | 34.74 | 34.99 | 34.02 | 34.33 | 252,972 | -0.42(-1.21%) |
| Dec 05, 2011 | 35.12 | 35.33 | 34.50 | 34.75 | 430,576 | +0.20(+0.58%) |
| Dec 02, 2011 | 34.89 | 34.89 | 34.06 | 34.55 | 507,759 | +0.22(+0.64%) |