| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Feb 28, 2011 | 21.26 | 21.55 | 21.19 | 21.55 | 45,577 | +0.38(+1.77%) |
| Feb 25, 2011 | 21.10 | 21.22 | 21.10 | 21.17 | 17,568 | +0.14(+0.67%) |
| Feb 24, 2011 | 20.84 | 21.08 | 20.83 | 21.04 | 101,890 | +0.05(+0.21%) |
| Feb 23, 2011 | 21.01 | 21.25 | 20.99 | 20.99 | 69,741 | +0.00(+0.02%) |
| Feb 22, 2011 | 21.04 | 21.14 | 20.84 | 20.99 | 132,749 | -0.26(-1.25%) |
| Feb 21, 2011 | 21.34 | 21.34 | 21.14 | 21.25 | 418,330 | -0.06(-0.28%) |
| Feb 18, 2011 | 21.29 | 21.33 | 21.12 | 21.31 | 185,378 | +0.10(+0.47%) |
| Feb 17, 2011 | 21.64 | 21.67 | 21.21 | 21.21 | 112,235 | -0.26(-1.21%) |
| Feb 16, 2011 | 21.69 | 21.69 | 21.47 | 21.47 | 235,764 | -0.14(-0.62%) |
| Feb 15, 2011 | 21.52 | 21.70 | 21.52 | 21.61 | 80,906 | +0.03(+0.12%) |
| Feb 14, 2011 | 21.83 | 21.83 | 21.48 | 21.58 | 24,610 | -0.04(-0.19%) |
| Feb 11, 2011 | 21.49 | 21.72 | 21.49 | 21.62 | 56,656 | -0.02(-0.09%) |
| Feb 10, 2011 | 21.69 | 21.70 | 21.47 | 21.64 | 131,932 | -0.21(-0.96%) |
| Feb 09, 2011 | 21.92 | 21.99 | 21.85 | 21.85 | 626,711 | -0.21(-0.95%) |
| Feb 08, 2011 | 22.18 | 22.23 | 22.01 | 22.06 | 108,587 | -0.08(-0.34%) |
| Feb 07, 2011 | 22.22 | 22.36 | 22.14 | 22.14 | 22,339 | +0.02(+0.09%) |
| Feb 04, 2011 | 21.98 | 22.14 | 21.98 | 22.11 | 39,707 | +0.18(+0.84%) |
| Feb 03, 2011 | 21.92 | 21.98 | 21.83 | 21.93 | 28,341 | +0.01(+0.02%) |
| Feb 02, 2011 | 21.97 | 22.16 | 21.81 | 21.92 | 143,238 | +0.00(+0.00%) |
| Feb 01, 2011 | 21.74 | 21.96 | 21.67 | 21.92 | 14,087 | +0.48(+2.26%) |
| Jan 31, 2011 | 21.30 | 21.48 | 21.05 | 21.44 | 62,761 | +0.17(+0.80%) |
| Jan 28, 2011 | 21.68 | 21.81 | 21.27 | 21.27 | 428,687 | -0.52(-2.39%) |
| Jan 27, 2011 | 21.74 | 21.83 | 21.62 | 21.79 | 14,431 | -0.02(-0.09%) |
| Jan 26, 2011 | 21.71 | 21.94 | 21.71 | 21.81 | 71,791 | +0.13(+0.60%) |
| Jan 25, 2011 | 22.05 | 22.05 | 21.68 | 21.68 | 9,508 | -0.15(-0.69%) |
| Jan 24, 2011 | 22.12 | 22.12 | 21.78 | 21.83 | 75,500 | -0.22(-0.98%) |
| Jan 21, 2011 | 21.90 | 22.11 | 21.77 | 22.05 | 90,093 | +0.45(+2.08%) |
| Jan 20, 2011 | 22.06 | 22.14 | 21.59 | 21.59 | 17,394 | -0.55(-2.48%) |
| Jan 19, 2011 | 22.35 | 22.48 | 22.14 | 22.14 | 6,395 | -0.15(-0.70%) |
| Jan 18, 2011 | 21.89 | 22.30 | 21.89 | 22.30 | 158,865 | +0.66(+3.05%) |
| Jan 17, 2011 | 21.57 | 21.72 | 21.57 | 21.64 | 55,410 | +0.00(+0.00%) |
| Jan 14, 2011 | 21.67 | 21.70 | 21.54 | 21.64 | 5,195 | -0.04(-0.18%) |
| Jan 13, 2011 | 21.91 | 21.91 | 21.65 | 21.68 | 75,964 | -0.18(-0.82%) |
| Jan 12, 2011 | 21.39 | 21.89 | 21.39 | 21.86 | 18,384 | +0.56(+2.63%) |
| Jan 11, 2011 | 21.09 | 21.38 | 21.09 | 21.30 | 149,607 | +0.40(+1.91%) |
| Jan 10, 2011 | 21.19 | 21.25 | 20.90 | 20.90 | 140,267 | -0.52(-2.40%) |
| Jan 07, 2011 | 21.63 | 21.63 | 21.31 | 21.42 | 42,340 | -0.14(-0.67%) |
| Jan 06, 2011 | 21.67 | 21.89 | 21.55 | 21.56 | 252,727 | +0.07(+0.33%) |
| Jan 05, 2011 | 21.56 | 21.58 | 21.18 | 21.49 | 122,606 | -0.05(-0.23%) |
| Jan 04, 2011 | 21.63 | 21.72 | 21.52 | 21.54 | 198,440 | -0.02(-0.09%) |
| Jan 03, 2011 | 21.40 | 21.56 | 21.40 | 21.56 | 65,303 | +0.31(+1.48%) |
| Dec 30, 2010 | 21.25 | 21.25 | 21.25 | 0 | -0.09(-0.42%) | |
| Dec 29, 2010 | 21.08 | 21.36 | 21.08 | 21.33 | 28,456 | +0.29(+1.35%) |
| Dec 28, 2010 | 21.17 | 21.25 | 21.05 | 21.05 | 30,379 | -0.12(-0.59%) |
| Dec 27, 2010 | 21.30 | 21.33 | 21.17 | 21.17 | 158,110 | -0.15(-0.68%) |
| Dec 23, 2010 | 21.32 | 21.32 | 21.32 | 0 | +0.04(+0.16%) | |
| Dec 22, 2010 | 21.15 | 21.32 | 21.15 | 21.29 | 623,569 | +0.07(+0.33%) |
| Dec 21, 2010 | 21.00 | 21.31 | 21.00 | 21.21 | 250,464 | +0.25(+1.17%) |
| Dec 20, 2010 | 21.10 | 21.10 | 20.82 | 20.97 | 264,110 | -0.13(-0.62%) |
| Dec 17, 2010 | 21.26 | 21.26 | 21.04 | 21.10 | 74,957 | -0.05(-0.24%) |
| Dec 16, 2010 | 21.19 | 21.25 | 21.08 | 21.15 | 41,350 | -0.04(-0.19%) |
| Dec 15, 2010 | 21.20 | 21.32 | 21.13 | 21.19 | 58,136 | +0.04(+0.19%) |
| Dec 14, 2010 | 21.17 | 21.25 | 21.08 | 21.15 | 21,172 | -0.09(-0.42%) |
| Dec 13, 2010 | 21.17 | 21.25 | 21.17 | 21.24 | 1,694 | +0.27(+1.29%) |
| Dec 10, 2010 | 21.08 | 21.08 | 20.90 | 20.97 | 40,966 | +0.01(+0.05%) |
| Dec 09, 2010 | 21.01 | 21.10 | 20.91 | 20.96 | 53,888 | +0.10(+0.50%) |
| Dec 08, 2010 | 20.84 | 20.94 | 20.83 | 20.86 | 87,180 | -0.18(-0.83%) |
| Dec 07, 2010 | 20.92 | 21.15 | 20.90 | 21.03 | 101,523 | +0.24(+1.15%) |
| Dec 06, 2010 | 20.83 | 20.88 | 20.61 | 20.79 | 116,937 | -0.06(-0.29%) |
| Dec 03, 2010 | 20.72 | 20.90 | 20.68 | 20.85 | 130,070 | +0.00(+0.00%) |
| Dec 02, 2010 | 20.60 | 20.85 | 20.50 | 20.85 | 106,145 | +0.42(+2.06%) |