| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Feb 29, 2012 | 18.00 | 18.13 | 17.59 | 18.07 | 147,218 | +0.15(+0.84%) |
| Feb 28, 2012 | 18.93 | 18.93 | 17.58 | 17.92 | 177,708 | -1.20(-6.28%) |
| Feb 27, 2012 | 19.01 | 19.22 | 18.98 | 19.12 | 81,252 | -0.06(-0.31%) |
| Feb 24, 2012 | 18.99 | 19.40 | 18.99 | 19.18 | 60,795 | +0.15(+0.79%) |
| Feb 23, 2012 | 19.00 | 19.16 | 18.59 | 19.03 | 98,404 | -0.06(-0.31%) |
| Feb 22, 2012 | 18.77 | 19.14 | 18.13 | 19.09 | 217,025 | +0.23(+1.22%) |
| Feb 21, 2012 | 18.60 | 19.20 | 17.86 | 18.86 | 268,957 | +0.32(+1.73%) |
| Feb 17, 2012 | 18.65 | 19.34 | 18.15 | 18.54 | 141,610 | -0.16(-0.86%) |
| Feb 16, 2012 | 18.82 | 20.00 | 18.53 | 18.70 | 114,265 | -0.15(-0.80%) |
| Feb 15, 2012 | 18.80 | 19.04 | 18.65 | 18.85 | 183,182 | +0.06(+0.32%) |
| Feb 14, 2012 | 19.79 | 20.00 | 18.75 | 18.79 | 341,765 | -1.04(-5.24%) |
| Feb 13, 2012 | 20.55 | 21.00 | 19.76 | 19.83 | 314,925 | -0.80(-3.88%) |
| Feb 10, 2012 | 20.63 | 21.00 | 20.25 | 20.63 | 164,705 | -0.20(-0.96%) |
| Feb 09, 2012 | 20.40 | 20.87 | 20.40 | 20.83 | 106,494 | +0.38(+1.86%) |
| Feb 08, 2012 | 19.90 | 20.88 | 19.90 | 20.45 | 144,189 | +0.66(+3.34%) |
| Feb 07, 2012 | 20.89 | 20.97 | 19.74 | 19.79 | 407,443 | -1.08(-5.17%) |
| Feb 06, 2012 | 21.07 | 21.30 | 20.87 | 20.87 | 164,391 | -0.34(-1.60%) |
| Feb 03, 2012 | 21.52 | 21.98 | 21.07 | 21.21 | 233,832 | +0.01(+0.05%) |
| Feb 02, 2012 | 21.60 | 22.00 | 20.10 | 21.20 | 493,668 | -4.40(-17.19%) |
| Feb 01, 2012 | 25.77 | 25.82 | 25.51 | 25.60 | 174,499 | +0.07(+0.27%) |
| Jan 31, 2012 | 25.86 | 26.06 | 25.37 | 25.53 | 76,114 | -0.30(-1.16%) |
| Jan 30, 2012 | 25.73 | 26.05 | 25.51 | 25.83 | 86,314 | -0.08(-0.29%) |
| Jan 27, 2012 | 25.74 | 26.70 | 25.74 | 25.91 | 83,629 | +0.06(+0.21%) |
| Jan 26, 2012 | 25.95 | 26.00 | 25.43 | 25.85 | 81,888 | +0.09(+0.35%) |
| Jan 25, 2012 | 25.59 | 26.00 | 25.50 | 25.76 | 88,241 | +0.21(+0.82%) |
| Jan 24, 2012 | 25.68 | 26.21 | 25.45 | 25.55 | 140,141 | -0.12(-0.47%) |
| Jan 23, 2012 | 25.54 | 26.05 | 25.23 | 25.67 | 170,588 | +0.07(+0.27%) |
| Jan 20, 2012 | 25.52 | 26.19 | 25.15 | 25.60 | 161,973 | +0.12(+0.47%) |
| Jan 19, 2012 | 25.33 | 26.18 | 24.85 | 25.48 | 107,406 | +0.23(+0.91%) |
| Jan 18, 2012 | 25.51 | 25.77 | 25.08 | 25.25 | 147,287 | -0.28(-1.10%) |
| Jan 17, 2012 | 25.78 | 26.19 | 25.23 | 25.53 | 424,065 | -0.09(-0.35%) |
| Jan 13, 2012 | 25.13 | 25.93 | 25.13 | 25.62 | 138,188 | +0.32(+1.26%) |
| Jan 12, 2012 | 24.80 | 25.60 | 24.43 | 25.30 | 205,552 | +0.53(+2.14%) |
| Jan 11, 2012 | 23.68 | 24.94 | 23.68 | 24.77 | 912,598 | +0.73(+3.04%) |
| Jan 10, 2012 | 23.79 | 24.35 | 23.25 | 24.04 | 993,095 | +0.39(+1.65%) |
| Jan 09, 2012 | 22.95 | 23.84 | 22.32 | 23.65 | 738,793 | +0.41(+1.76%) |
| Jan 06, 2012 | 23.00 | 23.94 | 22.28 | 23.24 | 339,737 | +0.29(+1.26%) |
| Jan 05, 2012 | 24.43 | 24.43 | 22.35 | 22.95 | 1,020,372 | -1.14(-4.73%) |
| Jan 04, 2012 | 24.79 | 25.37 | 23.98 | 24.09 | 224,623 | -3.90(-13.93%) |
| Dec 30, 2011 | 28.64 | 29.90 | 27.81 | 27.99 | 194,482 | -0.65(-2.27%) |
| Dec 29, 2011 | 28.32 | 28.86 | 27.90 | 28.64 | 95,517 | +0.32(+1.13%) |
| Dec 28, 2011 | 28.92 | 29.00 | 27.51 | 28.32 | 176,349 | -0.34(-1.19%) |
| Dec 27, 2011 | 25.92 | 28.95 | 25.92 | 28.66 | 245,854 | +2.53(+9.68%) |
| Dec 23, 2011 | 25.50 | 26.39 | 25.39 | 26.13 | 144,374 | +1.26(+5.07%) |
| Dec 21, 2011 | 24.10 | 25.19 | 24.10 | 24.87 | 102,154 | +0.66(+2.73%) |
| Dec 20, 2011 | 22.93 | 24.49 | 22.77 | 24.21 | 168,580 | +1.55(+6.84%) |
| Dec 19, 2011 | 22.56 | 22.95 | 22.13 | 22.66 | 205,257 | +0.17(+0.76%) |
| Dec 16, 2011 | 23.43 | 23.43 | 22.38 | 22.49 | 329,011 | -0.10(-0.44%) |
| Dec 15, 2011 | 22.71 | 22.80 | 22.40 | 22.59 | 124,018 | +0.08(+0.36%) |
| Dec 14, 2011 | 22.86 | 23.16 | 21.66 | 22.51 | 470,769 | -0.51(-2.22%) |
| Dec 13, 2011 | 23.51 | 23.54 | 22.51 | 23.02 | 233,605 | -0.41(-1.75%) |
| Dec 12, 2011 | 23.01 | 23.76 | 21.75 | 23.43 | 738,515 | +0.20(+0.86%) |
| Dec 09, 2011 | 22.93 | 23.52 | 22.84 | 23.23 | 138,722 | +0.21(+0.91%) |
| Dec 08, 2011 | 21.21 | 23.16 | 21.21 | 23.02 | 105,829 | +0.08(+0.35%) |
| Dec 07, 2011 | 23.04 | 23.50 | 22.17 | 22.94 | 191,728 | -0.23(-0.99%) |
| Dec 06, 2011 | 22.91 | 23.54 | 22.45 | 23.17 | 253,164 | +0.20(+0.87%) |
| Dec 05, 2011 | 23.40 | 23.69 | 22.92 | 22.97 | 322,553 | -0.12(-0.52%) |
| Dec 02, 2011 | 22.66 | 23.95 | 22.66 | 23.09 | 624,958 | +0.57(+2.53%) |