Historical Prices
| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Feb 28, 2011 | 21.67 | 22.00 | 21.63 | 21.99 | 6,792,126 | +0.27(+1.24%) |
| Feb 25, 2011 | 21.09 | 21.79 | 21.06 | 21.72 | 5,078,057 | +0.72(+3.43%) |
| Feb 24, 2011 | 21.00 | 21.11 | 20.89 | 21.00 | 9,092,455 | +0.05(+0.24%) |
| Feb 23, 2011 | 21.09 | 21.21 | 20.78 | 20.95 | 6,919,129 | -0.16(-0.76%) |
| Feb 22, 2011 | 21.39 | 21.60 | 21.11 | 21.11 | 5,131,479 | -0.55(-2.54%) |
| Feb 18, 2011 | 21.53 | 21.70 | 21.42 | 21.66 | 4,388,809 | +0.16(+0.74%) |
| Feb 17, 2011 | 21.36 | 21.66 | 21.26 | 21.50 | 4,209,907 | +0.02(+0.09%) |
| Feb 16, 2011 | 21.34 | 21.50 | 21.23 | 21.48 | 2,980,155 | +0.17(+0.80%) |
| Feb 15, 2011 | 21.35 | 21.43 | 21.24 | 21.31 | 3,769,787 | -0.16(-0.75%) |
| Feb 14, 2011 | 21.41 | 21.52 | 21.36 | 21.47 | 2,950,863 | +0.07(+0.33%) |
| Feb 11, 2011 | 21.19 | 21.45 | 21.03 | 21.40 | 4,121,368 | +0.16(+0.75%) |
| Feb 10, 2011 | 20.94 | 21.33 | 20.87 | 21.24 | 5,669,520 | +0.23(+1.09%) |
| Feb 09, 2011 | 21.37 | 21.58 | 20.98 | 21.01 | 5,687,028 | -0.37(-1.73%) |
| Feb 08, 2011 | 21.12 | 21.40 | 21.10 | 21.38 | 6,982,791 | +0.21(+0.99%) |
| Feb 07, 2011 | 20.96 | 21.52 | 20.94 | 21.17 | 11,767,016 | +0.21(+1.00%) |
| Feb 04, 2011 | 20.69 | 21.00 | 20.68 | 20.96 | 5,072,353 | +0.28(+1.35%) |
| Feb 03, 2011 | 20.69 | 20.74 | 20.45 | 20.68 | 8,134,418 | -0.09(-0.43%) |
| Feb 02, 2011 | 20.29 | 20.81 | 20.18 | 20.77 | 10,971,640 | +0.48(+2.37%) |
| Feb 01, 2011 | 20.44 | 20.50 | 20.20 | 20.29 | 7,929,842 | +0.01(+0.05%) |
| Jan 31, 2011 | 19.77 | 20.29 | 19.43 | 20.28 | 10,924,747 | +0.53(+2.68%) |
| Jan 28, 2011 | 20.34 | 20.53 | 19.73 | 19.75 | 8,038,344 | -0.59(-2.90%) |
| Jan 27, 2011 | 20.10 | 20.35 | 20.00 | 20.34 | 5,987,263 | +0.20(+0.99%) |
| Jan 26, 2011 | 19.71 | 20.20 | 19.71 | 20.14 | 7,469,670 | +0.44(+2.23%) |
| Jan 25, 2011 | 19.66 | 19.72 | 19.49 | 19.70 | 4,534,603 | +0.00(+0.00%) |
| Jan 24, 2011 | 19.25 | 19.96 | 19.15 | 19.70 | 10,278,081 | +0.39(+2.02%) |
| Jan 21, 2011 | 19.31 | 19.42 | 19.18 | 19.31 | 3,459,117 | +0.13(+0.68%) |
| Jan 20, 2011 | 19.13 | 19.22 | 18.97 | 19.18 | 6,738,833 | +0.09(+0.47%) |
| Jan 19, 2011 | 19.26 | 19.35 | 19.06 | 19.09 | 3,922,733 | -0.20(-1.04%) |
| Jan 18, 2011 | 19.28 | 19.39 | 19.24 | 19.29 | 3,512,396 | +0.03(+0.16%) |
| Jan 14, 2011 | 19.12 | 19.26 | 19.03 | 19.26 | 4,307,466 | +0.15(+0.78%) |
| Jan 13, 2011 | 19.17 | 19.17 | 18.95 | 19.11 | 3,308,184 | -0.04(-0.21%) |
| Jan 12, 2011 | 19.34 | 19.36 | 19.10 | 19.15 | 5,701,622 | -0.09(-0.47%) |
| Jan 11, 2011 | 19.09 | 19.31 | 19.03 | 19.24 | 3,171,735 | +0.22(+1.16%) |
| Jan 10, 2011 | 19.08 | 19.20 | 18.83 | 19.02 | 4,707,158 | -0.17(-0.89%) |
| Jan 07, 2011 | 19.36 | 19.48 | 19.06 | 19.19 | 4,319,353 | +0.11(+0.57%) |
| Jan 06, 2011 | 18.85 | 19.41 | 18.82 | 19.08 | 6,778,160 | +0.14(+0.75%) |
| Jan 05, 2011 | 18.51 | 18.96 | 18.39 | 18.94 | 8,205,727 | +0.33(+1.77%) |
| Jan 04, 2011 | 18.75 | 18.91 | 18.59 | 18.61 | 4,417,909 | -0.13(-0.69%) |
| Jan 03, 2011 | 18.67 | 18.88 | 18.59 | 18.74 | 6,269,952 | +0.17(+0.92%) |
| Dec 31, 2010 | 18.53 | 18.71 | 18.47 | 18.57 | 2,496,732 | +0.02(+0.11%) |
| Dec 30, 2010 | 18.42 | 18.65 | 18.37 | 18.55 | 2,643,904 | +0.15(+0.82%) |
| Dec 29, 2010 | 18.33 | 18.50 | 18.28 | 18.40 | 3,001,471 | +0.12(+0.66%) |
| Dec 28, 2010 | 18.55 | 18.59 | 18.27 | 18.28 | 3,152,619 | -0.20(-1.08%) |
| Dec 27, 2010 | 18.20 | 18.50 | 18.20 | 18.48 | 1,627,433 | +0.22(+1.20%) |
| Dec 23, 2010 | 18.42 | 18.49 | 18.20 | 18.26 | 1,990,666 | -0.21(-1.14%) |
| Dec 22, 2010 | 18.40 | 18.47 | 18.24 | 18.47 | 4,301,580 | +0.08(+0.44%) |
| Dec 21, 2010 | 18.45 | 18.45 | 18.26 | 18.39 | 4,234,111 | +0.04(+0.22%) |
| Dec 20, 2010 | 18.36 | 18.42 | 18.17 | 18.35 | 3,712,507 | +0.07(+0.38%) |
| Dec 17, 2010 | 18.28 | 18.42 | 18.20 | 18.28 | 4,251,653 | -0.01(-0.05%) |
| Dec 16, 2010 | 18.66 | 18.66 | 18.27 | 18.29 | 7,573,832 | -0.26(-1.40%) |
| Dec 15, 2010 | 18.69 | 18.76 | 18.50 | 18.55 | 6,508,691 | -0.26(-1.38%) |
| Dec 14, 2010 | 18.80 | 18.96 | 18.75 | 18.81 | 3,681,804 | +0.05(+0.27%) |
| Dec 13, 2010 | 18.70 | 18.89 | 18.69 | 18.76 | 3,507,211 | +0.05(+0.27%) |
| Dec 10, 2010 | 18.67 | 18.80 | 18.63 | 18.71 | 2,813,358 | +0.11(+0.59%) |
| Dec 09, 2010 | 18.71 | 18.86 | 18.54 | 18.60 | 4,518,473 | -0.05(-0.27%) |
| Dec 08, 2010 | 18.39 | 18.66 | 18.25 | 18.65 | 8,358,542 | +0.31(+1.69%) |
| Dec 07, 2010 | 18.54 | 18.59 | 18.31 | 18.34 | 4,667,006 | +0.10(+0.58%) |
| Dec 06, 2010 | 18.24 | 18.41 | 18.17 | 18.24 | 4,549,596 | -0.01(-0.08%) |
| Dec 03, 2010 | 18.13 | 18.32 | 18.11 | 18.25 | 6,861,313 | +0.02(+0.11%) |
| Dec 02, 2010 | 18.03 | 18.23 | 18.00 | 18.23 | 4,564,476 | +0.20(+1.11%) |
