Historical Prices
| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Feb 28, 2011 | 56.19 | 56.33 | 55.95 | 56.27 | 3,273,105 | +1.02(+1.85%) |
| Feb 25, 2011 | 55.06 | 55.29 | 54.93 | 55.25 | 2,541,921 | +0.40(+0.73%) |
| Feb 24, 2011 | 55.63 | 55.64 | 54.74 | 54.85 | 4,236,277 | -2.41(-4.21%) |
| Feb 23, 2011 | 56.98 | 57.85 | 56.97 | 57.26 | 3,562,539 | +0.32(+0.56%) |
| Feb 22, 2011 | 57.01 | 57.17 | 56.75 | 56.94 | 2,908,801 | -0.37(-0.65%) |
| Feb 18, 2011 | 56.98 | 57.41 | 56.90 | 57.31 | 2,365,471 | +0.22(+0.39%) |
| Feb 17, 2011 | 56.64 | 57.20 | 56.55 | 57.09 | 4,282,385 | +0.85(+1.51%) |
| Feb 16, 2011 | 55.60 | 56.54 | 55.51 | 56.24 | 4,977,435 | +0.38(+0.68%) |
| Feb 15, 2011 | 55.63 | 56.04 | 55.60 | 55.86 | 1,876,290 | -0.02(-0.04%) |
| Feb 14, 2011 | 55.68 | 55.95 | 55.59 | 55.88 | 4,186,902 | -0.06(-0.11%) |
| Feb 11, 2011 | 55.66 | 56.04 | 55.59 | 55.94 | 2,421,686 | +0.19(+0.34%) |
| Feb 10, 2011 | 55.58 | 55.88 | 55.45 | 55.75 | 3,738,744 | -0.45(-0.80%) |
| Feb 09, 2011 | 56.00 | 56.27 | 55.92 | 56.20 | 2,002,353 | +0.14(+0.25%) |
| Feb 08, 2011 | 56.54 | 56.60 | 55.97 | 56.06 | 2,920,146 | -0.55(-0.97%) |
| Feb 07, 2011 | 56.32 | 56.78 | 56.30 | 56.61 | 2,301,555 | +0.19(+0.34%) |
| Feb 04, 2011 | 56.31 | 56.43 | 56.04 | 56.42 | 1,940,631 | -0.35(-0.62%) |
| Feb 03, 2011 | 56.35 | 56.81 | 56.17 | 56.77 | 3,146,911 | +0.17(+0.30%) |
| Feb 02, 2011 | 56.55 | 56.69 | 56.33 | 56.60 | 3,336,897 | -0.03(-0.05%) |
| Feb 01, 2011 | 56.10 | 56.88 | 56.10 | 56.63 | 4,298,130 | +0.77(+1.38%) |
| Jan 31, 2011 | 55.97 | 56.26 | 55.64 | 55.86 | 2,788,007 | -0.06(-0.11%) |
| Jan 28, 2011 | 55.99 | 56.33 | 55.63 | 55.92 | 2,974,285 | -0.36(-0.64%) |
| Jan 27, 2011 | 56.35 | 56.67 | 56.15 | 56.28 | 4,784,584 | -1.66(-2.87%) |
| Jan 26, 2011 | 57.77 | 57.97 | 57.66 | 57.94 | 2,270,718 | +0.14(+0.24%) |
| Jan 25, 2011 | 57.95 | 57.97 | 57.30 | 57.80 | 3,403,129 | +0.30(+0.52%) |
| Jan 24, 2011 | 56.72 | 57.50 | 56.69 | 57.50 | 3,420,464 | +1.08(+1.91%) |
| Jan 21, 2011 | 56.64 | 56.70 | 56.29 | 56.42 | 3,810,371 | +0.17(+0.30%) |
| Jan 20, 2011 | 56.25 | 56.51 | 55.85 | 56.25 | 4,232,342 | -0.82(-1.44%) |
| Jan 19, 2011 | 57.24 | 57.38 | 57.01 | 57.07 | 2,532,145 | -0.40(-0.70%) |
| Jan 18, 2011 | 57.54 | 57.78 | 57.37 | 57.47 | 2,823,331 | +0.65(+1.14%) |
| Jan 14, 2011 | 56.67 | 57.03 | 56.47 | 56.82 | 2,784,328 | -0.21(-0.37%) |
| Jan 13, 2011 | 57.14 | 57.41 | 56.78 | 57.03 | 3,549,485 | -0.66(-1.14%) |
| Jan 12, 2011 | 57.71 | 57.78 | 57.21 | 57.69 | 2,813,338 | +0.69(+1.21%) |
| Jan 11, 2011 | 57.03 | 57.03 | 56.52 | 57.00 | 2,384,726 | +0.20(+0.35%) |
| Jan 10, 2011 | 56.63 | 56.80 | 56.51 | 56.80 | 2,490,010 | -0.25(-0.44%) |
| Jan 07, 2011 | 57.38 | 57.60 | 57.00 | 57.05 | 4,707,707 | -0.99(-1.71%) |
| Jan 06, 2011 | 58.01 | 58.05 | 57.74 | 58.04 | 2,527,702 | +0.31(+0.54%) |
| Jan 05, 2011 | 57.19 | 57.99 | 57.15 | 57.73 | 4,562,683 | -0.67(-1.15%) |
| Jan 04, 2011 | 58.79 | 58.83 | 58.24 | 58.40 | 4,452,315 | -0.84(-1.42%) |
| Jan 03, 2011 | 59.03 | 59.55 | 58.93 | 59.24 | 2,456,423 | +0.29(+0.49%) |
| Dec 31, 2010 | 58.75 | 59.26 | 58.66 | 58.95 | 841,798 | +0.01(+0.02%) |
| Dec 30, 2010 | 58.94 | 59.20 | 58.69 | 58.94 | 1,833,803 | -0.21(-0.36%) |
| Dec 29, 2010 | 59.09 | 59.44 | 59.07 | 59.15 | 2,127,619 | +0.03(+0.05%) |
| Dec 28, 2010 | 59.48 | 59.48 | 59.03 | 59.12 | 2,129,303 | +0.51(+0.87%) |
| Dec 27, 2010 | 58.53 | 58.72 | 58.41 | 58.61 | 1,122,169 | -0.21(-0.36%) |
| Dec 23, 2010 | 58.50 | 58.95 | 58.38 | 58.82 | 2,698,903 | -0.35(-0.59%) |
| Dec 22, 2010 | 58.70 | 59.17 | 58.70 | 59.17 | 2,618,060 | +0.27(+0.46%) |
| Dec 21, 2010 | 58.67 | 58.99 | 58.64 | 58.90 | 3,659,154 | +0.13(+0.22%) |
| Dec 20, 2010 | 58.55 | 58.88 | 58.50 | 58.77 | 3,224,049 | +0.03(+0.05%) |
| Dec 17, 2010 | 58.90 | 58.97 | 58.28 | 58.74 | 4,933,072 | -0.12(-0.20%) |
| Dec 16, 2010 | 58.42 | 59.03 | 58.17 | 58.86 | 17,265,163 | -0.13(-0.22%) |
| Dec 15, 2010 | 59.53 | 59.95 | 58.52 | 58.99 | 35,374,520 | +3.16(+5.66%) |
| Dec 14, 2010 | 55.40 | 56.04 | 55.38 | 55.83 | 2,861,392 | +0.71(+1.29%) |
| Dec 13, 2010 | 54.77 | 55.28 | 54.70 | 55.12 | 3,166,860 | +0.39(+0.71%) |
| Dec 10, 2010 | 54.63 | 54.78 | 54.29 | 54.73 | 2,480,995 | -0.10(-0.18%) |
| Dec 09, 2010 | 55.00 | 55.07 | 54.57 | 54.83 | 2,546,140 | +0.19(+0.35%) |
| Dec 08, 2010 | 54.37 | 54.69 | 54.28 | 54.64 | 2,067,578 | +0.07(+0.13%) |
| Dec 07, 2010 | 55.25 | 55.26 | 54.54 | 54.57 | 3,959,998 | +0.07(+0.13%) |
| Dec 06, 2010 | 54.31 | 54.59 | 54.25 | 54.50 | 1,834,813 | -0.25(-0.46%) |
| Dec 03, 2010 | 54.69 | 54.88 | 54.41 | 54.75 | 2,499,503 | +0.14(+0.26%) |
| Dec 02, 2010 | 54.21 | 54.97 | 54.19 | 54.61 | 3,197,176 | +0.50(+0.92%) |
