| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Feb 29, 2008 | 26.30 | 27.13 | 25.61 | 26.09 | 1,822,120 | +1.13(+4.53%) |
| Feb 28, 2008 | 22.51 | 25.28 | 22.33 | 24.96 | 1,699,943 | +1.79(+7.73%) |
| Feb 27, 2008 | 23.18 | 23.53 | 22.84 | 23.17 | 328,400 | -0.01(-0.04%) |
| Feb 26, 2008 | 23.32 | 23.70 | 22.52 | 23.18 | 739,600 | -0.01(-0.04%) |
| Feb 25, 2008 | 24.03 | 24.03 | 22.97 | 23.19 | 853,375 | -0.66(-2.77%) |
| Feb 22, 2008 | 23.96 | 24.06 | 23.02 | 23.85 | 578,500 | +0.06(+0.25%) |
| Feb 21, 2008 | 23.23 | 24.22 | 23.08 | 23.79 | 831,431 | +0.65(+2.81%) |
| Feb 20, 2008 | 22.84 | 23.17 | 22.64 | 23.14 | 531,720 | +0.06(+0.26%) |
| Feb 19, 2008 | 23.25 | 23.65 | 22.92 | 23.08 | 571,911 | -0.17(-0.73%) |
| Feb 18, 2008 | 22.40 | 23.48 | 22.24 | 23.25 | 0 | +0.00(+0.00%) |
| Feb 15, 2008 | 22.40 | 23.48 | 22.24 | 23.25 | 454,500 | +0.82(+3.66%) |
| Feb 14, 2008 | 22.54 | 22.69 | 22.24 | 22.43 | 442,400 | -0.25(-1.10%) |
| Feb 13, 2008 | 23.56 | 23.56 | 22.51 | 22.68 | 934,495 | -0.52(-2.24%) |
| Feb 12, 2008 | 22.05 | 23.64 | 21.95 | 23.20 | 1,070,099 | +1.19(+5.41%) |
| Feb 11, 2008 | 21.67 | 22.33 | 21.34 | 22.01 | 884,290 | +0.15(+0.69%) |
| Feb 08, 2008 | 22.25 | 22.60 | 21.43 | 21.86 | 457,100 | -0.42(-1.89%) |
| Feb 07, 2008 | 22.63 | 22.92 | 21.43 | 22.28 | 928,509 | -0.53(-2.32%) |
| Feb 06, 2008 | 23.19 | 23.35 | 22.65 | 22.81 | 622,200 | -0.13(-0.57%) |
| Feb 05, 2008 | 23.57 | 23.69 | 22.85 | 22.94 | 618,099 | -0.72(-3.04%) |
| Feb 04, 2008 | 24.53 | 24.53 | 23.29 | 23.66 | 689,059 | -0.87(-3.55%) |
| Feb 01, 2008 | 22.27 | 24.64 | 22.27 | 24.53 | 1,719,400 | +2.25(+10.10%) |
| Jan 31, 2008 | 21.32 | 22.53 | 21.08 | 22.28 | 743,599 | +0.47(+2.16%) |
| Jan 30, 2008 | 21.40 | 22.27 | 21.29 | 21.81 | 888,075 | +0.28(+1.30%) |
| Jan 29, 2008 | 21.93 | 22.14 | 21.43 | 21.53 | 631,800 | -0.33(-1.51%) |
| Jan 28, 2008 | 21.06 | 22.17 | 20.81 | 21.86 | 1,812,300 | +0.99(+4.74%) |
| Jan 25, 2008 | 21.58 | 21.67 | 20.46 | 20.87 | 1,705,550 | -0.32(-1.51%) |
| Jan 24, 2008 | 21.61 | 21.61 | 21.06 | 21.19 | 831,900 | -0.15(-0.70%) |
| Jan 23, 2008 | 20.66 | 21.57 | 20.57 | 21.34 | 1,240,826 | +0.06(+0.28%) |
| Jan 22, 2008 | 20.82 | 21.62 | 20.54 | 21.28 | 1,130,600 | -0.46(-2.12%) |
| Jan 21, 2008 | 22.59 | 22.69 | 21.59 | 21.74 | 0 | +0.00(+0.00%) |
| Jan 18, 2008 | 22.59 | 22.69 | 21.59 | 21.74 | 763,575 | -0.80(-3.55%) |
| Jan 17, 2008 | 22.82 | 22.93 | 22.20 | 22.54 | 1,369,417 | -0.38(-1.66%) |
| Jan 16, 2008 | 23.62 | 23.68 | 22.40 | 22.92 | 1,790,742 | -0.60(-2.55%) |
| Jan 15, 2008 | 24.55 | 24.79 | 23.29 | 23.52 | 1,124,400 | -1.52(-6.07%) |
| Jan 14, 2008 | 25.28 | 25.33 | 24.60 | 25.04 | 595,500 | -0.24(-0.95%) |
| Jan 11, 2008 | 25.56 | 25.90 | 25.23 | 25.28 | 479,650 | -0.67(-2.58%) |
| Jan 10, 2008 | 25.76 | 26.24 | 24.66 | 25.95 | 435,700 | +0.32(+1.25%) |
| Jan 09, 2008 | 26.50 | 26.50 | 25.15 | 25.63 | 400,600 | -0.74(-2.81%) |
| Jan 08, 2008 | 26.35 | 27.35 | 26.25 | 26.37 | 590,900 | +0.02(+0.08%) |
| Jan 07, 2008 | 26.40 | 26.66 | 26.04 | 26.35 | 807,600 | -0.05(-0.19%) |
| Jan 04, 2008 | 27.50 | 27.76 | 26.34 | 26.40 | 1,171,750 | -1.28(-4.62%) |
| Jan 03, 2008 | 27.61 | 27.93 | 27.50 | 27.68 | 290,600 | -0.17(-0.61%) |
| Jan 02, 2008 | 28.21 | 28.29 | 27.49 | 27.85 | 385,900 | -0.56(-1.97%) |
| Jan 01, 2008 | 28.32 | 28.80 | 27.50 | 28.41 | 550,200 | +0.00(+0.00%) |
| Dec 31, 2007 | 28.32 | 28.80 | 27.50 | 28.41 | 550,200 | -0.21(-0.73%) |
| Dec 28, 2007 | 29.27 | 29.51 | 28.33 | 28.62 | 275,610 | -0.64(-2.19%) |
| Dec 27, 2007 | 29.50 | 29.81 | 28.95 | 29.26 | 396,605 | -0.78(-2.60%) |
| Dec 26, 2007 | 30.03 | 30.20 | 29.76 | 30.04 | 393,600 | -0.41(-1.35%) |
| Dec 24, 2007 | 29.69 | 30.64 | 29.69 | 30.45 | 119,200 | +0.42(+1.40%) |
| Dec 21, 2007 | 30.03 | 30.29 | 29.50 | 30.03 | 360,898 | -0.02(-0.07%) |
| Dec 20, 2007 | 29.83 | 30.20 | 29.48 | 30.05 | 351,000 | +0.26(+0.87%) |
| Dec 19, 2007 | 30.16 | 30.23 | 29.47 | 29.79 | 287,600 | -0.30(-1.00%) |
| Dec 18, 2007 | 30.16 | 30.46 | 29.36 | 30.09 | 419,300 | +0.42(+1.42%) |
| Dec 17, 2007 | 29.76 | 30.45 | 29.48 | 29.67 | 447,050 | -0.39(-1.30%) |
| Dec 14, 2007 | 31.73 | 31.73 | 30.00 | 30.06 | 690,900 | -1.54(-4.87%) |
| Dec 13, 2007 | 31.71 | 32.02 | 30.93 | 31.60 | 454,480 | +0.17(+0.54%) |
| Dec 12, 2007 | 33.55 | 34.05 | 31.21 | 31.43 | 856,222 | -1.78(-5.36%) |
| Dec 11, 2007 | 35.17 | 35.17 | 32.96 | 33.21 | 542,041 | -1.95(-5.55%) |
| Dec 10, 2007 | 34.51 | 35.36 | 34.27 | 35.16 | 525,510 | +0.92(+2.69%) |
| Dec 07, 2007 | 34.66 | 34.69 | 33.85 | 34.24 | 461,979 | -0.17(-0.49%) |
| Dec 06, 2007 | 33.31 | 34.87 | 33.18 | 34.41 | 495,600 | +0.91(+2.72%) |
| Dec 05, 2007 | 33.42 | 34.15 | 33.27 | 33.50 | 973,100 | +0.07(+0.21%) |
| Dec 04, 2007 | 32.78 | 33.44 | 32.54 | 33.43 | 557,700 | +0.42(+1.27%) |