Historical Prices
| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Apr 30, 2012 | 21.63 | 21.64 | 21.05 | 21.12 | 1,270,891 | -0.51(-2.36%) |
| Apr 27, 2012 | 20.92 | 21.70 | 20.92 | 21.63 | 1,836,234 | +0.70(+3.34%) |
| Apr 26, 2012 | 20.88 | 21.39 | 20.72 | 20.93 | 1,498,597 | -0.06(-0.29%) |
| Apr 25, 2012 | 20.57 | 21.00 | 20.33 | 20.99 | 2,075,814 | +0.79(+3.91%) |
| Apr 24, 2012 | 19.33 | 20.41 | 19.33 | 20.20 | 4,012,901 | +0.82(+4.23%) |
| Apr 23, 2012 | 19.71 | 19.71 | 19.20 | 19.38 | 2,592,005 | -0.68(-3.39%) |
| Apr 20, 2012 | 21.53 | 21.53 | 19.98 | 20.06 | 4,608,051 | -1.46(-6.78%) |
| Apr 19, 2012 | 21.00 | 22.38 | 20.99 | 21.52 | 3,266,068 | +0.49(+2.33%) |
| Apr 18, 2012 | 21.36 | 21.51 | 20.75 | 21.03 | 1,928,899 | -0.55(-2.55%) |
| Apr 17, 2012 | 21.14 | 21.91 | 21.06 | 21.58 | 1,585,167 | +0.69(+3.33%) |
| Apr 16, 2012 | 21.24 | 21.41 | 20.72 | 20.89 | 1,668,491 | -0.24(-1.16%) |
| Apr 13, 2012 | 21.21 | 21.42 | 21.05 | 21.13 | 1,682,132 | -0.30(-1.40%) |
| Apr 12, 2012 | 21.32 | 21.68 | 21.05 | 21.43 | 1,617,355 | +0.28(+1.32%) |
| Apr 11, 2012 | 21.28 | 21.38 | 20.92 | 21.15 | 2,477,891 | +0.39(+1.88%) |
| Apr 10, 2012 | 21.16 | 21.50 | 20.67 | 20.76 | 2,583,064 | -0.43(-2.03%) |
| Apr 09, 2012 | 20.80 | 21.32 | 20.68 | 21.19 | 1,967,812 | -0.35(-1.62%) |
| Apr 05, 2012 | 21.71 | 21.82 | 21.19 | 21.54 | 2,812,101 | -0.02(-0.09%) |
| Apr 04, 2012 | 22.50 | 22.51 | 21.20 | 21.56 | 3,920,121 | -1.22(-5.36%) |
| Apr 03, 2012 | 22.63 | 23.21 | 22.54 | 22.78 | 2,647,214 | +0.11(+0.49%) |
| Apr 02, 2012 | 22.08 | 22.73 | 21.95 | 22.67 | 2,597,189 | +0.39(+1.75%) |
| Mar 30, 2012 | 22.45 | 22.45 | 21.82 | 22.28 | 3,648,162 | +0.13(+0.59%) |
| Mar 29, 2012 | 22.29 | 22.43 | 21.67 | 22.15 | 4,440,323 | -0.32(-1.42%) |
| Mar 28, 2012 | 23.69 | 23.74 | 22.21 | 22.47 | 5,269,940 | -1.25(-5.27%) |
| Mar 27, 2012 | 24.16 | 24.57 | 23.55 | 23.72 | 2,561,756 | -0.39(-1.62%) |
| Mar 26, 2012 | 24.07 | 24.41 | 23.70 | 24.11 | 2,409,938 | +0.17(+0.71%) |
| Mar 23, 2012 | 23.69 | 23.95 | 23.25 | 23.94 | 1,370,014 | +0.24(+1.01%) |
| Mar 22, 2012 | 23.32 | 23.98 | 23.32 | 23.70 | 2,091,366 | -0.02(-0.08%) |
| Mar 21, 2012 | 24.10 | 24.35 | 23.66 | 23.72 | 2,301,726 | -0.14(-0.59%) |
| Mar 20, 2012 | 23.49 | 24.02 | 23.26 | 23.86 | 1,999,957 | +0.00(+0.00%) |
| Mar 19, 2012 | 23.55 | 24.03 | 23.41 | 23.86 | 2,682,513 | +0.24(+1.02%) |
| Mar 16, 2012 | 23.53 | 23.76 | 22.99 | 23.62 | 2,196,902 | +0.14(+0.60%) |
| Mar 15, 2012 | 23.49 | 24.00 | 23.33 | 23.48 | 2,591,218 | +0.04(+0.17%) |
| Mar 14, 2012 | 23.40 | 23.99 | 23.15 | 23.44 | 2,358,265 | +0.04(+0.17%) |
| Mar 13, 2012 | 22.90 | 23.69 | 22.65 | 23.40 | 2,801,520 | +0.80(+3.54%) |
| Mar 12, 2012 | 23.12 | 23.36 | 22.30 | 22.60 | 2,426,329 | -0.67(-2.88%) |
| Mar 09, 2012 | 22.55 | 23.54 | 21.99 | 23.27 | 3,793,590 | +0.99(+4.44%) |
| Mar 08, 2012 | 22.35 | 22.60 | 21.81 | 22.28 | 3,574,749 | +0.98(+4.60%) |
| Mar 07, 2012 | 21.11 | 21.44 | 21.00 | 21.30 | 1,643,362 | +0.30(+1.43%) |
| Mar 06, 2012 | 21.04 | 21.21 | 20.26 | 21.00 | 3,735,373 | -0.52(-2.42%) |
| Mar 05, 2012 | 21.70 | 21.89 | 21.34 | 21.52 | 1,863,245 | -0.29(-1.33%) |
| Mar 02, 2012 | 21.74 | 22.13 | 21.66 | 21.81 | 1,833,540 | -0.07(-0.32%) |
| Mar 01, 2012 | 21.79 | 22.08 | 21.14 | 21.88 | 2,080,000 | +0.28(+1.30%) |
| Feb 29, 2012 | 22.53 | 22.63 | 21.50 | 21.60 | 3,174,826 | -0.91(-4.04%) |
| Feb 28, 2012 | 22.63 | 22.71 | 22.34 | 22.51 | 1,983,086 | -0.11(-0.49%) |
| Feb 27, 2012 | 21.46 | 22.76 | 21.30 | 22.62 | 3,074,202 | +0.92(+4.24%) |
| Feb 24, 2012 | 21.99 | 22.28 | 21.65 | 21.70 | 1,692,398 | -0.17(-0.78%) |
| Feb 23, 2012 | 21.42 | 22.11 | 21.13 | 21.87 | 2,708,572 | +0.58(+2.72%) |
| Feb 22, 2012 | 21.52 | 21.57 | 20.78 | 21.29 | 3,870,332 | -0.32(-1.48%) |
| Feb 21, 2012 | 22.12 | 22.48 | 21.34 | 21.61 | 2,796,180 | -0.57(-2.57%) |
| Feb 17, 2012 | 23.75 | 23.89 | 21.88 | 22.18 | 10,090,430 | -2.47(-10.02%) |
| Feb 16, 2012 | 24.13 | 24.85 | 23.68 | 24.65 | 4,579,114 | +0.49(+2.03%) |
| Feb 15, 2012 | 24.39 | 25.00 | 23.77 | 24.16 | 3,655,855 | +0.00(+0.00%) |
| Feb 14, 2012 | 23.49 | 24.17 | 23.16 | 24.16 | 2,606,206 | +0.65(+2.76%) |
| Feb 13, 2012 | 23.93 | 23.93 | 23.14 | 23.51 | 1,226,521 | -0.06(-0.25%) |
| Feb 10, 2012 | 23.56 | 23.81 | 23.35 | 23.57 | 1,649,460 | -0.45(-1.87%) |
| Feb 09, 2012 | 23.77 | 24.25 | 23.20 | 24.02 | 1,858,211 | +0.47(+2.00%) |
| Feb 08, 2012 | 24.06 | 24.25 | 23.11 | 23.55 | 1,712,208 | -0.47(-1.96%) |
| Feb 07, 2012 | 23.64 | 24.18 | 23.32 | 24.02 | 1,259,502 | +0.22(+0.92%) |
| Feb 06, 2012 | 23.65 | 24.20 | 23.37 | 23.80 | 1,836,098 | -0.06(-0.25%) |
| Feb 03, 2012 | 23.06 | 24.45 | 23.04 | 23.86 | 3,063,259 | +0.99(+4.33%) |
| Feb 02, 2012 | 22.87 | 23.25 | 22.78 | 22.87 | 1,153,506 | +0.19(+0.84%) |
