Historical Prices
| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Feb 28, 2011 | 36.19 | 36.37 | 35.97 | 36.10 | 1,151,718 | +0.00(+0.00%) |
| Feb 25, 2011 | 36.16 | 36.23 | 35.89 | 36.10 | 668,912 | +0.10(+0.28%) |
| Feb 24, 2011 | 35.79 | 36.42 | 35.63 | 36.00 | 1,329,882 | +0.11(+0.31%) |
| Feb 23, 2011 | 35.84 | 36.28 | 35.50 | 35.89 | 1,387,261 | +0.07(+0.20%) |
| Feb 22, 2011 | 36.73 | 36.98 | 35.79 | 35.82 | 1,143,083 | -1.18(-3.19%) |
| Feb 18, 2011 | 36.98 | 37.06 | 36.73 | 37.00 | 1,016,736 | +0.10(+0.27%) |
| Feb 17, 2011 | 36.81 | 36.97 | 36.72 | 36.90 | 1,071,609 | +0.07(+0.19%) |
| Feb 16, 2011 | 37.09 | 37.43 | 36.82 | 36.83 | 1,201,696 | -36.90(-50.05%) |
| Feb 15, 2011 | 73.78 | 74.07 | 73.55 | 73.73 | 523,009 | -0.15(-0.20%) |
| Feb 14, 2011 | 73.95 | 74.23 | 73.74 | 73.88 | 460,246 | -0.17(-0.23%) |
| Feb 11, 2011 | 74.04 | 74.40 | 73.76 | 74.05 | 585,809 | -0.08(-0.11%) |
| Feb 10, 2011 | 73.32 | 74.42 | 73.17 | 74.13 | 614,257 | +0.33(+0.45%) |
| Feb 09, 2011 | 73.41 | 73.80 | 72.99 | 73.80 | 422,797 | +0.25(+0.34%) |
| Feb 08, 2011 | 73.63 | 73.69 | 73.17 | 73.55 | 395,296 | +0.08(+0.11%) |
| Feb 07, 2011 | 74.00 | 74.03 | 73.06 | 73.47 | 536,789 | -0.25(-0.34%) |
| Feb 04, 2011 | 74.11 | 74.11 | 73.00 | 73.72 | 500,854 | -0.23(-0.31%) |
| Feb 03, 2011 | 73.02 | 74.05 | 72.85 | 73.95 | 822,712 | +0.74(+1.01%) |
| Feb 02, 2011 | 72.01 | 73.70 | 71.95 | 73.21 | 972,738 | +0.71(+0.98%) |
| Feb 01, 2011 | 71.45 | 72.58 | 71.45 | 72.50 | 856,299 | +1.37(+1.93%) |
| Jan 31, 2011 | 72.07 | 72.07 | 71.04 | 71.13 | 1,004,771 | +0.21(+0.30%) |
| Jan 28, 2011 | 72.84 | 73.67 | 70.72 | 70.92 | 1,020,952 | -1.44(-1.99%) |
| Jan 27, 2011 | 72.45 | 73.29 | 71.27 | 72.36 | 1,155,721 | +0.69(+0.96%) |
| Jan 26, 2011 | 70.33 | 71.92 | 69.17 | 71.67 | 2,328,096 | +1.62(+2.31%) |
| Jan 25, 2011 | 70.14 | 70.14 | 69.45 | 70.05 | 765,787 | +0.06(+0.09%) |
| Jan 24, 2011 | 69.56 | 70.30 | 69.49 | 69.99 | 747,769 | +0.45(+0.65%) |
| Jan 21, 2011 | 69.89 | 69.89 | 69.46 | 69.54 | 940,552 | +0.34(+0.49%) |
| Jan 20, 2011 | 69.53 | 69.87 | 68.95 | 69.20 | 650,249 | -0.44(-0.63%) |
| Jan 19, 2011 | 69.14 | 70.15 | 69.13 | 69.64 | 878,593 | -1.30(-1.83%) |
| Jan 18, 2011 | 70.01 | 71.10 | 69.80 | 70.94 | 710,393 | +1.13(+1.62%) |
| Jan 14, 2011 | 70.65 | 70.85 | 69.72 | 69.81 | 760,214 | -0.92(-1.30%) |
| Jan 13, 2011 | 69.98 | 70.74 | 69.81 | 70.73 | 566,701 | +0.69(+0.99%) |
| Jan 12, 2011 | 69.49 | 70.07 | 69.49 | 70.04 | 465,348 | +0.72(+1.04%) |
| Jan 11, 2011 | 68.99 | 69.36 | 68.50 | 69.32 | 698,138 | +0.54(+0.79%) |
| Jan 10, 2011 | 69.41 | 69.68 | 68.56 | 68.78 | 826,606 | -1.30(-1.86%) |
| Jan 07, 2011 | 70.86 | 71.05 | 69.93 | 70.08 | 723,535 | +0.22(+0.31%) |
| Jan 06, 2011 | 70.27 | 70.68 | 69.68 | 69.86 | 806,920 | -0.31(-0.44%) |
| Jan 05, 2011 | 69.32 | 70.68 | 69.01 | 70.17 | 891,069 | +0.52(+0.75%) |
| Jan 04, 2011 | 69.11 | 69.69 | 68.73 | 69.65 | 729,967 | +0.76(+1.10%) |
| Jan 03, 2011 | 68.75 | 69.63 | 68.75 | 68.89 | 800,514 | +0.84(+1.23%) |
| Dec 31, 2010 | 68.85 | 68.90 | 67.72 | 68.05 | 961,947 | -0.95(-1.38%) |
| Dec 30, 2010 | 69.38 | 69.60 | 68.95 | 69.00 | 393,125 | -0.31(-0.45%) |
| Dec 29, 2010 | 69.60 | 69.61 | 69.20 | 69.31 | 219,843 | -0.17(-0.24%) |
| Dec 28, 2010 | 69.34 | 69.51 | 68.95 | 69.48 | 199,737 | +0.21(+0.30%) |
| Dec 27, 2010 | 69.00 | 69.42 | 68.77 | 69.27 | 167,981 | +0.06(+0.09%) |
| Dec 23, 2010 | 69.43 | 69.70 | 69.15 | 69.21 | 253,860 | -0.44(-0.63%) |
| Dec 22, 2010 | 69.41 | 69.70 | 68.96 | 69.65 | 526,795 | +0.36(+0.52%) |
| Dec 21, 2010 | 68.77 | 69.37 | 68.54 | 69.29 | 496,583 | +0.89(+1.30%) |
| Dec 20, 2010 | 68.50 | 68.62 | 67.88 | 68.40 | 587,656 | -0.10(-0.15%) |
| Dec 17, 2010 | 67.95 | 68.55 | 67.48 | 68.50 | 1,227,769 | -0.27(-0.39%) |
| Dec 16, 2010 | 68.32 | 68.81 | 68.00 | 68.77 | 507,124 | +0.39(+0.57%) |
| Dec 15, 2010 | 68.95 | 69.24 | 68.24 | 68.38 | 549,218 | -0.66(-0.96%) |
| Dec 14, 2010 | 68.45 | 69.27 | 68.14 | 69.04 | 511,028 | +0.78(+1.14%) |
| Dec 13, 2010 | 68.12 | 68.43 | 67.75 | 68.26 | 768,773 | +0.28(+0.41%) |
| Dec 10, 2010 | 68.00 | 68.14 | 67.73 | 67.98 | 459,070 | +0.22(+0.32%) |
| Dec 09, 2010 | 67.95 | 68.02 | 67.28 | 67.76 | 1,098,936 | +0.43(+0.64%) |
| Dec 08, 2010 | 68.00 | 68.31 | 67.16 | 67.33 | 523,618 | -0.65(-0.96%) |
| Dec 07, 2010 | 68.48 | 68.58 | 67.60 | 67.98 | 720,674 | +0.01(+0.01%) |
| Dec 06, 2010 | 68.70 | 68.70 | 67.53 | 67.97 | 579,463 | -0.88(-1.28%) |
| Dec 03, 2010 | 68.81 | 69.36 | 68.64 | 68.85 | 579,230 | -0.21(-0.30%) |
| Dec 02, 2010 | 68.03 | 69.58 | 67.85 | 69.06 | 820,452 | +1.12(+1.65%) |
