| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Feb 29, 2008 | 22.11 | 22.15 | 21.55 | 21.70 | 13,407,122 | -0.27(-1.23%) |
| Feb 28, 2008 | 21.95 | 22.07 | 21.57 | 21.97 | 9,939,558 | -0.13(-0.59%) |
| Feb 27, 2008 | 22.24 | 22.42 | 21.93 | 22.10 | 10,880,208 | -0.11(-0.50%) |
| Feb 26, 2008 | 21.82 | 22.42 | 21.68 | 22.21 | 16,844,605 | +0.25(+1.14%) |
| Feb 25, 2008 | 21.28 | 22.06 | 21.08 | 21.96 | 16,555,068 | +0.65(+3.05%) |
| Feb 22, 2008 | 21.39 | 21.50 | 20.84 | 21.31 | 8,729,657 | +0.01(+0.05%) |
| Feb 21, 2008 | 21.40 | 21.96 | 21.22 | 21.30 | 15,847,585 | +0.01(+0.05%) |
| Feb 20, 2008 | 21.73 | 21.83 | 20.92 | 21.29 | 19,252,410 | -0.66(-3.01%) |
| Feb 19, 2008 | 22.06 | 22.08 | 21.85 | 21.95 | 9,675,738 | +0.10(+0.46%) |
| Feb 18, 2008 | 21.70 | 21.94 | 21.50 | 21.85 | 0 | +0.00(+0.00%) |
| Feb 15, 2008 | 21.70 | 21.94 | 21.50 | 21.85 | 11,914,897 | +0.08(+0.37%) |
| Feb 14, 2008 | 22.14 | 22.25 | 21.53 | 21.77 | 14,012,401 | -0.32(-1.45%) |
| Feb 13, 2008 | 22.42 | 22.53 | 21.80 | 22.09 | 23,056,681 | +0.26(+1.19%) |
| Feb 12, 2008 | 21.43 | 22.01 | 21.25 | 21.83 | 27,078,986 | +1.21(+5.87%) |
| Feb 11, 2008 | 19.98 | 20.80 | 19.54 | 20.62 | 17,805,760 | +0.85(+4.30%) |
| Feb 08, 2008 | 19.92 | 20.11 | 19.71 | 19.77 | 15,044,790 | -0.15(-0.75%) |
| Feb 07, 2008 | 20.11 | 20.52 | 19.60 | 19.92 | 16,232,940 | -0.45(-2.21%) |
| Feb 06, 2008 | 20.74 | 20.74 | 20.00 | 20.37 | 22,580,928 | -0.02(-0.10%) |
| Feb 05, 2008 | 20.88 | 21.27 | 20.11 | 20.39 | 23,667,198 | -0.82(-3.87%) |
| Feb 04, 2008 | 20.84 | 21.24 | 20.65 | 21.21 | 18,419,693 | +0.64(+3.11%) |
| Feb 01, 2008 | 19.66 | 20.70 | 19.66 | 20.57 | 20,060,859 | +1.04(+5.33%) |
| Jan 31, 2008 | 19.25 | 19.75 | 18.87 | 19.53 | 22,765,377 | +0.17(+0.88%) |
| Jan 30, 2008 | 19.05 | 19.57 | 18.64 | 19.36 | 21,154,225 | +0.25(+1.31%) |
| Jan 29, 2008 | 19.88 | 19.89 | 19.07 | 19.11 | 16,853,301 | -0.53(-2.70%) |
| Jan 28, 2008 | 19.47 | 19.88 | 19.15 | 19.64 | 21,946,909 | +0.62(+3.26%) |
| Jan 25, 2008 | 20.46 | 20.46 | 17.45 | 19.02 | 83,685,490 | -1.15(-5.70%) |
| Jan 24, 2008 | 19.67 | 20.36 | 19.59 | 20.17 | 37,886,701 | +0.58(+2.96%) |
| Jan 23, 2008 | 19.95 | 19.95 | 19.05 | 19.59 | 48,018,600 | -0.77(-3.78%) |
| Jan 22, 2008 | 20.22 | 21.46 | 19.86 | 20.36 | 34,472,441 | -0.92(-4.32%) |
| Jan 21, 2008 | 21.83 | 22.40 | 21.00 | 21.28 | 0 | +0.00(+0.00%) |
| Jan 18, 2008 | 21.83 | 22.40 | 21.00 | 21.28 | 45,165,036 | -0.34(-1.57%) |
| Jan 17, 2008 | 23.59 | 24.00 | 20.55 | 21.62 | 73,999,981 | -1.87(-7.96%) |
| Jan 16, 2008 | 23.71 | 24.11 | 23.34 | 23.49 | 30,629,342 | -0.29(-1.22%) |
| Jan 15, 2008 | 24.91 | 25.00 | 23.62 | 23.78 | 48,101,321 | -1.74(-6.82%) |
| Jan 14, 2008 | 27.00 | 27.23 | 25.34 | 25.52 | 40,851,249 | -2.21(-7.97%) |
| Jan 11, 2008 | 26.94 | 27.81 | 26.90 | 27.73 | 11,681,764 | +0.49(+1.80%) |
| Jan 10, 2008 | 27.19 | 27.58 | 26.85 | 27.24 | 13,678,365 | -0.10(-0.37%) |
| Jan 09, 2008 | 27.21 | 27.63 | 26.83 | 27.34 | 15,167,909 | +0.49(+1.82%) |
| Jan 08, 2008 | 25.85 | 27.72 | 25.85 | 26.85 | 19,920,032 | +1.02(+3.95%) |
| Jan 07, 2008 | 25.75 | 25.98 | 25.42 | 25.83 | 19,239,789 | +0.27(+1.06%) |
| Jan 04, 2008 | 26.41 | 26.60 | 25.54 | 25.56 | 20,675,160 | -1.11(-4.16%) |
| Jan 03, 2008 | 26.34 | 26.85 | 26.21 | 26.67 | 16,443,500 | +0.36(+1.37%) |
| Jan 02, 2008 | 26.64 | 26.72 | 26.04 | 26.31 | 11,247,525 | -0.33(-1.24%) |
| Jan 01, 2008 | 26.85 | 26.91 | 26.58 | 26.64 | 0 | +0.00(+0.00%) |
| Dec 31, 2007 | 26.85 | 26.91 | 26.58 | 26.64 | 7,671,345 | -0.30(-1.11%) |
| Dec 28, 2007 | 27.00 | 27.45 | 26.79 | 26.94 | 7,837,404 | +0.10(+0.37%) |
| Dec 27, 2007 | 27.12 | 27.12 | 26.64 | 26.84 | 6,804,013 | -0.32(-1.18%) |
| Dec 26, 2007 | 27.29 | 27.29 | 26.98 | 27.16 | 6,972,814 | +0.03(+0.11%) |
| Dec 24, 2007 | 27.24 | 27.43 | 26.86 | 27.13 | 5,679,667 | -0.13(-0.48%) |
| Dec 21, 2007 | 26.78 | 27.48 | 26.75 | 27.26 | 24,416,168 | +1.06(+4.05%) |
| Dec 20, 2007 | 26.51 | 26.55 | 25.95 | 26.20 | 13,367,739 | -0.09(-0.34%) |
| Dec 19, 2007 | 26.74 | 26.83 | 25.90 | 26.29 | 31,180,093 | -0.47(-1.76%) |
| Dec 18, 2007 | 27.30 | 27.35 | 26.36 | 26.76 | 19,905,934 | -0.23(-0.85%) |
| Dec 17, 2007 | 27.65 | 27.88 | 26.90 | 26.99 | 16,678,682 | -0.78(-2.81%) |
| Dec 14, 2007 | 28.44 | 28.44 | 27.72 | 27.77 | 13,457,575 | -0.91(-3.17%) |
| Dec 13, 2007 | 27.83 | 28.76 | 27.61 | 28.68 | 22,274,127 | +0.74(+2.65%) |
| Dec 12, 2007 | 29.59 | 29.59 | 27.01 | 27.94 | 43,401,530 | -1.06(-3.66%) |
| Dec 11, 2007 | 29.85 | 30.06 | 28.95 | 29.00 | 12,367,062 | -0.86(-2.88%) |
| Dec 10, 2007 | 30.29 | 30.34 | 29.63 | 29.86 | 9,752,001 | -0.29(-0.96%) |
| Dec 07, 2007 | 31.08 | 31.45 | 30.07 | 30.15 | 11,714,437 | -0.93(-2.99%) |
| Dec 06, 2007 | 31.20 | 31.48 | 30.67 | 31.08 | 5,784,292 | -0.11(-0.35%) |
| Dec 05, 2007 | 31.53 | 31.53 | 31.10 | 31.19 | 8,412,120 | -0.01(-0.03%) |
| Dec 04, 2007 | 30.57 | 31.41 | 30.30 | 31.20 | 8,712,870 | +0.39(+1.27%) |