| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Dec 30, 2011 | 19.95 | 20.18 | 19.90 | 19.98 | 140,714 | +0.22(+1.11%) |
| Dec 29, 2011 | 18.92 | 19.76 | 18.90 | 19.76 | 147,039 | +0.49(+2.54%) |
| Dec 28, 2011 | 19.90 | 19.90 | 19.15 | 19.27 | 192,330 | -1.19(-5.82%) |
| Dec 23, 2011 | 20.43 | 20.46 | 20.46 | 20.46 | 41,312 | -0.28(-1.35%) |
| Dec 21, 2011 | 20.89 | 20.89 | 20.66 | 20.74 | 119,560 | -0.13(-0.62%) |
| Dec 20, 2011 | 20.76 | 20.92 | 20.72 | 20.87 | 71,592 | +0.13(+0.63%) |
| Dec 19, 2011 | 21.06 | 21.06 | 20.64 | 20.74 | 205,425 | -0.46(-2.17%) |
| Dec 16, 2011 | 21.32 | 21.41 | 21.11 | 21.20 | 102,967 | +0.44(+2.12%) |
| Dec 15, 2011 | 20.66 | 20.76 | 20.34 | 20.76 | 171,023 | +0.14(+0.68%) |
| Dec 14, 2011 | 20.91 | 21.02 | 20.37 | 20.62 | 403,559 | -0.88(-4.09%) |
| Dec 13, 2011 | 21.97 | 22.04 | 21.34 | 21.50 | 147,985 | -0.41(-1.87%) |
| Dec 12, 2011 | 21.99 | 21.99 | 21.77 | 21.91 | 175,233 | -0.46(-2.06%) |
| Dec 09, 2011 | 22.41 | 22.58 | 22.32 | 22.37 | 60,523 | +0.10(+0.45%) |
| Dec 08, 2011 | 22.27 | 22.35 | 22.07 | 22.27 | 88,960 | -0.17(-0.76%) |
| Dec 07, 2011 | 22.51 | 22.63 | 22.32 | 22.44 | 81,995 | -0.06(-0.27%) |
| Dec 06, 2011 | 22.04 | 22.57 | 21.95 | 22.50 | 84,004 | +0.31(+1.40%) |
| Dec 05, 2011 | 22.70 | 22.70 | 22.16 | 22.19 | 97,306 | -0.50(-2.20%) |
| Dec 02, 2011 | 22.84 | 22.93 | 22.47 | 22.69 | 112,471 | +0.13(+0.58%) |
| Dec 01, 2011 | 22.78 | 22.86 | 22.40 | 22.56 | 78,871 | -0.16(-0.70%) |
| Nov 30, 2011 | 22.63 | 22.87 | 22.60 | 22.72 | 163,896 | +0.21(+0.93%) |
| Nov 29, 2011 | 22.72 | 22.74 | 22.48 | 22.51 | 164,958 | -0.30(-1.32%) |
| Nov 28, 2011 | 22.85 | 22.85 | 22.61 | 22.81 | 118,419 | +0.41(+1.83%) |
| Nov 25, 2011 | 22.45 | 22.78 | 22.28 | 22.40 | 60,788 | -0.05(-0.22%) |
| Nov 24, 2011 | 22.78 | 22.93 | 22.40 | 22.45 | 21,120 | -0.35(-1.54%) |
| Nov 23, 2011 | 22.61 | 22.90 | 22.47 | 22.80 | 100,421 | -0.08(-0.35%) |
| Nov 22, 2011 | 22.57 | 23.05 | 22.52 | 22.88 | 137,259 | +0.53(+2.37%) |
| Nov 21, 2011 | 22.55 | 22.68 | 21.95 | 22.35 | 226,413 | -0.53(-2.32%) |
| Nov 18, 2011 | 22.81 | 22.98 | 22.56 | 22.88 | 123,590 | +0.24(+1.06%) |
| Nov 17, 2011 | 23.20 | 23.20 | 22.38 | 22.64 | 189,692 | -0.75(-3.21%) |
| Nov 16, 2011 | 23.70 | 23.74 | 23.39 | 23.39 | 52,664 | -0.50(-2.09%) |
| Nov 15, 2011 | 23.92 | 24.08 | 23.63 | 23.89 | 91,244 | +0.16(+0.67%) |
| Nov 14, 2011 | 23.85 | 23.95 | 23.52 | 23.73 | 91,369 | -0.06(-0.25%) |
| Nov 11, 2011 | 23.84 | 23.88 | 23.67 | 23.79 | 41,519 | +0.15(+0.63%) |
| Nov 10, 2011 | 23.63 | 23.70 | 23.17 | 23.64 | 112,688 | -0.03(-0.13%) |
| Nov 09, 2011 | 24.13 | 24.17 | 23.52 | 23.67 | 102,333 | -0.07(-0.29%) |
| Nov 08, 2011 | 24.04 | 24.13 | 23.65 | 23.74 | 93,537 | -0.30(-1.25%) |
| Nov 07, 2011 | 23.74 | 24.09 | 23.64 | 24.04 | 87,790 | +0.71(+3.04%) |
| Nov 04, 2011 | 23.22 | 23.44 | 23.22 | 23.33 | 91,133 | +0.11(+0.47%) |
| Nov 03, 2011 | 23.47 | 23.55 | 23.17 | 23.22 | 222,064 | -0.04(-0.17%) |
| Nov 02, 2011 | 22.95 | 23.30 | 22.92 | 23.26 | 105,665 | +0.56(+2.47%) |
| Nov 01, 2011 | 22.23 | 22.77 | 22.04 | 22.70 | 134,817 | +0.15(+0.67%) |
| Oct 31, 2011 | 22.73 | 22.78 | 22.52 | 22.55 | 58,944 | -0.43(-1.87%) |
| Oct 28, 2011 | 23.20 | 23.20 | 22.88 | 22.98 | 103,811 | -0.09(-0.39%) |
| Oct 27, 2011 | 22.80 | 23.34 | 22.65 | 23.07 | 143,251 | +0.19(+0.83%) |
| Oct 26, 2011 | 22.88 | 23.15 | 22.79 | 22.88 | 148,442 | +0.01(+0.04%) |
| Oct 25, 2011 | 21.59 | 22.88 | 21.52 | 22.87 | 211,880 | +1.44(+6.72%) |
| Oct 24, 2011 | 21.34 | 21.55 | 21.32 | 21.43 | 118,819 | +0.22(+1.04%) |
| Oct 21, 2011 | 21.37 | 21.41 | 21.18 | 21.21 | 75,460 | +0.21(+1.00%) |
| Oct 20, 2011 | 21.00 | 21.22 | 20.64 | 21.00 | 138,104 | -0.30(-1.41%) |
| Oct 19, 2011 | 21.46 | 21.59 | 21.25 | 21.30 | 71,709 | -0.49(-2.25%) |
| Oct 18, 2011 | 21.55 | 21.80 | 21.20 | 21.79 | 100,688 | -0.09(-0.41%) |
| Oct 17, 2011 | 22.01 | 22.13 | 21.67 | 21.88 | 89,865 | +0.02(+0.09%) |
| Oct 14, 2011 | 21.84 | 21.95 | 21.61 | 21.86 | 73,127 | +0.15(+0.69%) |
| Oct 13, 2011 | 22.05 | 22.05 | 21.67 | 21.71 | 69,516 | -0.51(-2.30%) |
| Oct 12, 2011 | 22.37 | 22.37 | 22.16 | 22.22 | 138,399 | -0.16(-0.71%) |
| Oct 11, 2011 | 22.25 | 22.43 | 22.14 | 22.38 | 127,865 | +0.55(+2.52%) |
| Oct 07, 2011 | 22.26 | 22.43 | 21.78 | 21.83 | 115,450 | -0.41(-1.84%) |
| Oct 06, 2011 | 22.00 | 22.46 | 21.92 | 22.24 | 151,749 | +0.63(+2.92%) |
| Oct 05, 2011 | 21.55 | 21.73 | 21.07 | 21.61 | 193,246 | +0.08(+0.37%) |
| Oct 04, 2011 | 21.98 | 22.11 | 21.00 | 21.53 | 297,347 | -0.40(-1.82%) |