| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Feb 29, 2012 | 18.62 | 19.06 | 18.60 | 18.89 | 15,685,700 | +0.21(+1.12%) |
| Feb 28, 2012 | 18.47 | 18.75 | 18.38 | 18.68 | 8,269,867 | +0.10(+0.54%) |
| Feb 27, 2012 | 18.58 | 18.70 | 18.47 | 18.58 | 10,565,999 | -0.34(-1.80%) |
| Feb 24, 2012 | 19.00 | 19.09 | 18.88 | 18.92 | 4,988,436 | -0.24(-1.25%) |
| Feb 23, 2012 | 19.35 | 19.41 | 19.00 | 19.16 | 6,603,359 | +0.00(+0.00%) |
| Feb 22, 2012 | 19.44 | 19.46 | 19.16 | 19.16 | 6,198,228 | -0.46(-2.34%) |
| Feb 21, 2012 | 19.49 | 19.76 | 19.43 | 19.62 | 9,229,326 | +0.41(+2.13%) |
| Feb 17, 2012 | 19.46 | 19.48 | 19.21 | 19.21 | 6,149,847 | +0.02(+0.10%) |
| Feb 16, 2012 | 19.01 | 19.36 | 18.90 | 19.19 | 10,559,407 | +0.31(+1.64%) |
| Feb 15, 2012 | 18.88 | 18.93 | 18.69 | 18.88 | 5,132,370 | +0.03(+0.16%) |
| Feb 14, 2012 | 18.96 | 19.01 | 18.68 | 18.85 | 7,076,548 | -0.22(-1.15%) |
| Feb 13, 2012 | 19.24 | 19.28 | 18.98 | 19.07 | 6,784,169 | -0.04(-0.21%) |
| Feb 10, 2012 | 19.17 | 19.27 | 19.00 | 19.11 | 7,524,539 | -0.50(-2.55%) |
| Feb 09, 2012 | 19.49 | 19.90 | 19.43 | 19.61 | 11,708,942 | +0.30(+1.55%) |
| Feb 08, 2012 | 19.38 | 19.45 | 19.18 | 19.31 | 8,037,743 | -0.02(-0.10%) |
| Feb 07, 2012 | 19.22 | 19.50 | 19.16 | 19.33 | 6,919,871 | +0.43(+2.28%) |
| Feb 06, 2012 | 19.22 | 19.33 | 18.86 | 18.90 | 5,847,848 | -0.35(-1.82%) |
| Feb 03, 2012 | 19.31 | 19.45 | 19.20 | 19.25 | 12,737,713 | +0.78(+4.22%) |
| Feb 02, 2012 | 18.53 | 18.64 | 18.36 | 18.47 | 5,387,576 | +0.00(+0.00%) |
| Feb 01, 2012 | 18.30 | 18.58 | 18.27 | 18.47 | 7,220,909 | +0.40(+2.21%) |
| Jan 31, 2012 | 18.55 | 18.57 | 18.04 | 18.07 | 7,467,289 | -0.42(-2.27%) |
| Jan 30, 2012 | 18.37 | 18.52 | 18.20 | 18.49 | 7,738,515 | -0.45(-2.38%) |
| Jan 27, 2012 | 19.01 | 19.28 | 18.85 | 18.94 | 5,682,767 | -0.13(-0.68%) |
| Jan 26, 2012 | 19.41 | 19.43 | 19.05 | 19.07 | 7,771,385 | -0.51(-2.60%) |
| Jan 25, 2012 | 19.61 | 19.67 | 18.77 | 19.58 | 14,183,966 | +0.07(+0.36%) |
| Jan 24, 2012 | 19.42 | 19.71 | 19.39 | 19.51 | 5,001,321 | -0.04(-0.20%) |
| Jan 23, 2012 | 19.61 | 19.77 | 19.42 | 19.55 | 9,815,715 | +0.27(+1.40%) |
| Jan 20, 2012 | 19.07 | 19.31 | 19.00 | 19.28 | 10,328,643 | +0.41(+2.17%) |
| Jan 19, 2012 | 18.58 | 19.00 | 18.51 | 18.87 | 8,474,549 | +0.49(+2.67%) |
| Jan 18, 2012 | 17.92 | 18.40 | 17.90 | 18.38 | 7,350,485 | +0.42(+2.34%) |
| Jan 17, 2012 | 18.10 | 18.14 | 17.89 | 17.96 | 6,335,866 | -0.19(-1.05%) |
| Jan 13, 2012 | 18.06 | 18.15 | 17.89 | 18.15 | 8,973,975 | -0.33(-1.79%) |
| Jan 12, 2012 | 18.43 | 18.63 | 18.35 | 18.48 | 6,742,597 | +0.03(+0.16%) |
| Jan 11, 2012 | 18.70 | 18.73 | 18.36 | 18.45 | 11,739,144 | -0.49(-2.59%) |
| Jan 10, 2012 | 19.12 | 19.14 | 18.76 | 18.94 | 5,941,249 | +0.06(+0.32%) |
| Jan 09, 2012 | 18.91 | 18.95 | 18.55 | 18.88 | 5,240,234 | +0.06(+0.32%) |
| Jan 06, 2012 | 19.13 | 19.14 | 18.74 | 18.82 | 7,590,070 | -0.28(-1.47%) |
| Jan 05, 2012 | 19.01 | 19.19 | 18.69 | 19.10 | 6,652,473 | +0.08(+0.42%) |
| Jan 04, 2012 | 18.65 | 19.15 | 18.65 | 19.02 | 7,722,727 | +0.95(+5.26%) |
| Dec 30, 2011 | 18.07 | 18.16 | 17.95 | 18.07 | 7,766,794 | -0.10(-0.55%) |
| Dec 29, 2011 | 18.29 | 18.42 | 18.10 | 18.17 | 7,347,569 | -0.07(-0.38%) |
| Dec 28, 2011 | 18.87 | 18.87 | 18.13 | 18.24 | 8,714,646 | -0.73(-3.85%) |
| Dec 27, 2011 | 19.11 | 19.23 | 18.96 | 18.97 | 4,519,060 | -0.18(-0.94%) |
| Dec 23, 2011 | 19.07 | 19.31 | 19.01 | 19.15 | 8,224,148 | +0.27(+1.43%) |
| Dec 21, 2011 | 18.42 | 18.90 | 18.37 | 18.88 | 8,891,171 | +0.49(+2.66%) |
| Dec 20, 2011 | 17.86 | 18.44 | 17.86 | 18.39 | 11,730,549 | +0.88(+5.03%) |
| Dec 19, 2011 | 17.97 | 17.99 | 17.48 | 17.51 | 10,095,092 | -0.43(-2.40%) |
| Dec 16, 2011 | 18.25 | 18.28 | 17.89 | 17.94 | 13,266,214 | -0.45(-2.45%) |
| Dec 15, 2011 | 18.49 | 18.55 | 18.27 | 18.39 | 6,585,219 | +0.13(+0.71%) |
| Dec 14, 2011 | 18.77 | 18.85 | 18.26 | 18.26 | 12,377,977 | -0.72(-3.79%) |
| Dec 13, 2011 | 19.56 | 19.61 | 18.81 | 18.98 | 8,712,333 | -0.38(-1.96%) |
| Dec 12, 2011 | 19.38 | 19.47 | 19.18 | 19.36 | 4,728,507 | -0.41(-2.07%) |
| Dec 09, 2011 | 19.04 | 19.80 | 19.02 | 19.77 | 7,015,571 | +0.77(+4.05%) |
| Dec 08, 2011 | 19.50 | 19.57 | 18.95 | 19.00 | 7,123,741 | -0.47(-2.41%) |
| Dec 07, 2011 | 19.61 | 19.78 | 19.31 | 19.47 | 4,402,399 | -0.16(-0.82%) |
| Dec 06, 2011 | 19.45 | 19.80 | 19.30 | 19.63 | 7,922,018 | +0.39(+2.03%) |
| Dec 05, 2011 | 19.73 | 19.75 | 19.13 | 19.24 | 7,127,190 | +0.06(+0.31%) |
| Dec 02, 2011 | 19.89 | 19.90 | 19.17 | 19.18 | 10,159,420 | -0.57(-2.89%) |