| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Feb 28, 2011 | 39.98 | 40.28 | 39.94 | 40.28 | 18,512 | +0.43(+1.08%) |
| Feb 25, 2011 | 39.59 | 39.85 | 39.58 | 39.85 | 36,673 | +0.35(+0.89%) |
| Feb 24, 2011 | 39.63 | 39.63 | 39.33 | 39.50 | 55,165 | -0.08(-0.20%) |
| Feb 23, 2011 | 39.75 | 39.82 | 39.40 | 39.58 | 14,585 | -0.15(-0.38%) |
| Feb 22, 2011 | 39.71 | 40.04 | 39.67 | 39.73 | 29,159 | -0.30(-0.75%) |
| Feb 18, 2011 | 40.04 | 40.09 | 39.97 | 40.03 | 51,298 | +0.01(+0.03%) |
| Feb 17, 2011 | 39.70 | 40.07 | 39.70 | 40.02 | 43,618 | +0.21(+0.52%) |
| Feb 16, 2011 | 39.78 | 39.82 | 39.68 | 39.81 | 42,375 | +0.17(+0.43%) |
| Feb 15, 2011 | 39.63 | 39.71 | 39.55 | 39.64 | 45,714 | -0.09(-0.23%) |
| Feb 14, 2011 | 39.73 | 39.75 | 39.53 | 39.73 | 19,104 | +0.03(+0.08%) |
| Feb 11, 2011 | 39.42 | 39.77 | 39.37 | 39.70 | 19,744 | +0.14(+0.35%) |
| Feb 10, 2011 | 39.45 | 39.61 | 39.30 | 39.56 | 37,002 | +0.06(+0.16%) |
| Feb 09, 2011 | 39.55 | 39.56 | 39.39 | 39.50 | 35,715 | -0.12(-0.31%) |
| Feb 08, 2011 | 39.67 | 39.67 | 39.47 | 39.62 | 27,753 | +0.11(+0.28%) |
| Feb 07, 2011 | 39.40 | 39.54 | 39.40 | 39.51 | 36,739 | +0.13(+0.33%) |
| Feb 04, 2011 | 39.41 | 39.41 | 39.23 | 39.38 | 10,418 | -0.03(-0.08%) |
| Feb 03, 2011 | 39.22 | 39.43 | 39.10 | 39.41 | 33,405 | +0.19(+0.48%) |
| Feb 02, 2011 | 39.17 | 39.29 | 39.17 | 39.22 | 43,454 | -0.04(-0.10%) |
| Feb 01, 2011 | 38.97 | 39.29 | 38.97 | 39.26 | 22,750 | +0.43(+1.11%) |
| Jan 31, 2011 | 38.83 | 38.87 | 38.69 | 38.83 | 24,715 | +0.10(+0.26%) |
| Jan 28, 2011 | 39.23 | 39.25 | 38.70 | 38.73 | 18,952 | -0.50(-1.27%) |
| Jan 27, 2011 | 39.30 | 39.30 | 39.14 | 39.23 | 29,039 | -0.07(-0.18%) |
| Jan 26, 2011 | 39.41 | 39.41 | 39.29 | 39.30 | 24,873 | +0.06(+0.15%) |
| Jan 25, 2011 | 39.08 | 39.24 | 39.03 | 39.24 | 24,895 | +0.12(+0.30%) |
| Jan 24, 2011 | 38.96 | 39.20 | 38.96 | 39.12 | 17,755 | +0.14(+0.36%) |
| Jan 21, 2011 | 39.25 | 39.25 | 38.95 | 38.98 | 33,106 | +0.07(+0.18%) |
| Jan 20, 2011 | 38.81 | 38.97 | 38.81 | 38.91 | 25,155 | +0.03(+0.08%) |
| Jan 19, 2011 | 39.03 | 39.07 | 38.82 | 38.88 | 32,169 | -0.16(-0.41%) |
| Jan 18, 2011 | 39.01 | 39.07 | 38.95 | 39.04 | 26,891 | -0.01(-0.03%) |
| Jan 14, 2011 | 38.99 | 39.05 | 38.91 | 39.05 | 13,047 | +0.09(+0.23%) |
| Jan 13, 2011 | 39.07 | 39.07 | 38.87 | 38.96 | 24,278 | -0.09(-0.23%) |
| Jan 12, 2011 | 39.00 | 39.13 | 38.97 | 39.05 | 184,062 | +0.19(+0.49%) |
| Jan 11, 2011 | 38.97 | 38.97 | 38.70 | 38.86 | 20,546 | -0.03(-0.08%) |
| Jan 10, 2011 | 38.84 | 38.90 | 38.71 | 38.89 | 42,386 | -0.16(-0.41%) |
| Jan 07, 2011 | 39.19 | 39.19 | 38.85 | 39.05 | 35,455 | -0.06(-0.15%) |
| Jan 06, 2011 | 39.34 | 39.37 | 39.04 | 39.11 | 114,572 | -0.25(-0.64%) |
| Jan 05, 2011 | 39.11 | 39.39 | 39.11 | 39.36 | 62,507 | +0.07(+0.18%) |
| Jan 04, 2011 | 39.28 | 39.30 | 39.12 | 39.29 | 29,858 | +0.07(+0.18%) |
| Jan 03, 2011 | 39.18 | 39.28 | 39.10 | 39.22 | 31,639 | +0.31(+0.80%) |
| Dec 31, 2010 | 38.91 | 39.07 | 38.91 | 38.91 | 14,328 | -0.05(-0.13%) |
| Dec 30, 2010 | 38.98 | 38.99 | 38.90 | 38.96 | 32,258 | -0.07(-0.18%) |
| Dec 29, 2010 | 39.08 | 39.11 | 39.00 | 39.03 | 43,009 | +0.01(+0.03%) |
| Dec 28, 2010 | 39.00 | 39.03 | 38.87 | 39.02 | 9,175 | +0.11(+0.28%) |
| Dec 27, 2010 | 38.85 | 38.94 | 38.79 | 38.91 | 9,108 | -0.01(-0.03%) |
| Dec 23, 2010 | 38.83 | 38.96 | 38.83 | 38.92 | 13,049 | +0.02(+0.05%) |
| Dec 22, 2010 | 38.80 | 38.90 | 38.53 | 38.90 | 21,640 | -0.43(-1.09%) |
| Dec 21, 2010 | 39.37 | 39.38 | 39.29 | 39.33 | 29,491 | +0.10(+0.25%) |
| Dec 20, 2010 | 39.16 | 39.34 | 39.09 | 39.23 | 194,783 | +0.08(+0.21%) |
| Dec 17, 2010 | 39.12 | 39.15 | 38.95 | 39.15 | 12,651 | -0.04(-0.11%) |
| Dec 16, 2010 | 38.97 | 39.19 | 38.90 | 39.19 | 47,869 | +0.21(+0.54%) |
| Dec 15, 2010 | 39.03 | 39.19 | 38.92 | 38.98 | 24,386 | -0.09(-0.22%) |
| Dec 14, 2010 | 38.96 | 39.15 | 38.96 | 39.07 | 5,851 | +0.16(+0.40%) |
| Dec 13, 2010 | 38.85 | 39.00 | 38.85 | 38.91 | 26,556 | +0.14(+0.36%) |
| Dec 10, 2010 | 38.65 | 38.77 | 38.61 | 38.77 | 46,593 | +0.23(+0.60%) |
| Dec 09, 2010 | 38.60 | 38.60 | 38.45 | 38.54 | 22,952 | +0.10(+0.26%) |
| Dec 08, 2010 | 38.42 | 38.52 | 38.29 | 38.44 | 42,539 | -0.02(-0.05%) |
| Dec 07, 2010 | 38.52 | 38.65 | 38.42 | 38.46 | 150,869 | +0.15(+0.39%) |
| Dec 06, 2010 | 38.21 | 38.40 | 38.19 | 38.31 | 236,771 | -0.02(-0.05%) |
| Dec 03, 2010 | 38.17 | 38.36 | 38.11 | 38.33 | 403,511 | +0.02(+0.05%) |
| Dec 02, 2010 | 37.99 | 38.31 | 37.99 | 38.31 | 59,946 | +0.31(+0.82%) |