Historical Prices
| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Mar 30, 2012 | 77.64 | 77.86 | 77.03 | 77.52 | 2,459,152 | +0.00(+0.00%) |
| Mar 29, 2012 | 77.54 | 78.20 | 77.22 | 77.52 | 2,066,660 | -0.42(-0.53%) |
| Mar 28, 2012 | 78.06 | 78.69 | 77.26 | 77.93 | 3,391,716 | -0.11(-0.13%) |
| Mar 27, 2012 | 78.83 | 78.83 | 77.90 | 78.04 | 2,478,634 | -0.46(-0.59%) |
| Mar 26, 2012 | 77.00 | 78.53 | 76.50 | 78.50 | 3,126,940 | +1.67(+2.17%) |
| Mar 23, 2012 | 76.38 | 76.92 | 75.67 | 76.83 | 2,417,050 | +0.66(+0.87%) |
| Mar 22, 2012 | 75.40 | 76.38 | 75.04 | 76.17 | 2,497,137 | +0.58(+0.77%) |
| Mar 21, 2012 | 75.53 | 76.00 | 75.29 | 75.59 | 2,059,773 | +0.06(+0.08%) |
| Mar 20, 2012 | 75.48 | 76.01 | 75.25 | 75.53 | 1,796,712 | +0.00(+0.00%) |
| Mar 19, 2012 | 75.44 | 75.94 | 75.08 | 75.53 | 2,649,273 | -0.07(-0.09%) |
| Mar 16, 2012 | 75.91 | 76.83 | 75.53 | 75.60 | 3,781,469 | -0.53(-0.70%) |
| Mar 15, 2012 | 76.04 | 76.40 | 75.52 | 76.13 | 2,078,565 | +0.12(+0.16%) |
| Mar 14, 2012 | 75.92 | 77.43 | 75.29 | 76.01 | 2,934,186 | -0.13(-0.17%) |
| Mar 13, 2012 | 74.61 | 76.29 | 74.45 | 76.14 | 3,392,645 | +1.73(+2.32%) |
| Mar 12, 2012 | 75.14 | 75.28 | 74.27 | 74.41 | 2,263,271 | -0.77(-1.02%) |
| Mar 09, 2012 | 74.45 | 75.27 | 74.24 | 75.18 | 2,821,957 | +0.94(+1.27%) |
| Mar 08, 2012 | 72.92 | 74.52 | 72.73 | 74.24 | 2,408,101 | +1.68(+2.32%) |
| Mar 07, 2012 | 72.15 | 72.85 | 71.95 | 72.56 | 1,505,751 | +0.28(+0.39%) |
| Mar 06, 2012 | 72.68 | 72.83 | 71.30 | 72.28 | 2,688,467 | -0.79(-1.08%) |
| Mar 05, 2012 | 73.51 | 73.79 | 72.17 | 73.07 | 2,190,167 | -0.66(-0.90%) |
| Mar 02, 2012 | 73.86 | 73.97 | 73.40 | 73.73 | 2,233,806 | -0.19(-0.26%) |
| Mar 01, 2012 | 73.56 | 74.24 | 73.30 | 73.92 | 2,113,742 | +0.60(+0.81%) |
| Feb 29, 2012 | 73.55 | 74.73 | 73.25 | 73.32 | 3,892,684 | -0.44(-0.59%) |
| Feb 28, 2012 | 74.21 | 74.24 | 73.37 | 73.76 | 2,683,291 | -0.32(-0.43%) |
| Feb 27, 2012 | 74.51 | 74.53 | 73.52 | 74.08 | 2,692,734 | -0.81(-1.08%) |
| Feb 24, 2012 | 74.89 | 75.27 | 74.65 | 74.89 | 1,814,288 | -0.02(-0.03%) |
| Feb 23, 2012 | 74.55 | 75.25 | 74.08 | 74.91 | 2,221,063 | +0.27(+0.36%) |
| Feb 22, 2012 | 73.88 | 74.79 | 73.43 | 74.64 | 2,425,094 | +0.61(+0.82%) |
| Feb 21, 2012 | 75.02 | 75.03 | 73.73 | 74.03 | 3,049,180 | -0.63(-0.84%) |
| Feb 17, 2012 | 75.32 | 75.44 | 74.44 | 74.66 | 2,672,430 | -0.84(-1.11%) |
| Feb 16, 2012 | 74.54 | 75.74 | 74.46 | 75.50 | 2,648,954 | +0.90(+1.21%) |
| Feb 15, 2012 | 74.36 | 76.09 | 73.83 | 74.60 | 5,340,087 | +0.46(+0.61%) |
| Feb 14, 2012 | 72.85 | 74.15 | 72.77 | 74.14 | 3,273,882 | +0.98(+1.35%) |
| Feb 13, 2012 | 72.51 | 73.47 | 71.91 | 73.16 | 2,402,384 | +1.42(+1.98%) |
| Feb 10, 2012 | 71.97 | 72.29 | 71.51 | 71.74 | 2,988,643 | -0.26(-0.36%) |
| Feb 09, 2012 | 73.15 | 73.19 | 71.92 | 72.00 | 4,058,728 | -0.86(-1.18%) |
| Feb 08, 2012 | 73.23 | 73.41 | 72.00 | 72.86 | 2,062,356 | -0.55(-0.75%) |
| Feb 07, 2012 | 73.81 | 73.83 | 72.70 | 73.41 | 2,480,501 | -0.11(-0.16%) |
| Feb 06, 2012 | 72.84 | 73.85 | 72.81 | 73.53 | 2,060,785 | +0.32(+0.43%) |
| Feb 03, 2012 | 74.40 | 74.48 | 72.77 | 73.21 | 3,434,622 | -0.95(-1.28%) |
| Feb 02, 2012 | 73.74 | 74.58 | 73.53 | 74.16 | 2,014,994 | +0.24(+0.32%) |
| Feb 01, 2012 | 72.72 | 74.32 | 72.70 | 73.92 | 3,875,157 | +1.23(+1.69%) |
| Jan 31, 2012 | 72.01 | 72.96 | 72.01 | 72.69 | 2,760,275 | -0.03(-0.04%) |
| Jan 30, 2012 | 71.29 | 72.72 | 71.23 | 72.72 | 3,385,708 | -0.65(-0.89%) |
| Jan 27, 2012 | 72.73 | 73.75 | 71.49 | 73.37 | 3,473,094 | +0.71(+0.98%) |
| Jan 26, 2012 | 73.96 | 74.63 | 72.34 | 72.66 | 3,992,802 | -1.13(-1.53%) |
| Jan 25, 2012 | 73.60 | 74.20 | 73.04 | 73.79 | 3,777,183 | -0.23(-0.31%) |
| Jan 24, 2012 | 73.24 | 74.04 | 72.87 | 74.02 | 2,947,237 | +0.59(+0.80%) |
| Jan 23, 2012 | 73.99 | 74.13 | 72.96 | 73.43 | 2,605,689 | -0.41(-0.56%) |
| Jan 20, 2012 | 72.40 | 74.75 | 72.21 | 73.84 | 4,991,111 | +1.63(+2.26%) |
| Jan 19, 2012 | 72.84 | 72.92 | 72.00 | 72.21 | 3,182,770 | -0.53(-0.73%) |
| Jan 18, 2012 | 72.88 | 73.18 | 72.48 | 72.74 | 3,546,493 | -0.37(-0.51%) |
| Jan 17, 2012 | 73.53 | 75.11 | 72.66 | 73.11 | 2,945,667 | +0.48(+0.66%) |
| Jan 13, 2012 | 72.76 | 72.90 | 71.88 | 72.63 | 2,848,579 | -0.57(-0.78%) |
| Jan 12, 2012 | 72.22 | 73.49 | 71.21 | 73.20 | 5,421,344 | +1.13(+1.57%) |
| Jan 11, 2012 | 70.51 | 72.31 | 70.19 | 72.07 | 4,311,414 | +1.81(+2.58%) |
| Jan 10, 2012 | 69.19 | 70.77 | 68.88 | 70.26 | 5,424,373 | +2.03(+2.98%) |
| Jan 09, 2012 | 67.23 | 68.85 | 66.87 | 68.23 | 6,796,401 | +1.01(+1.50%) |
| Jan 06, 2012 | 68.12 | 68.45 | 66.28 | 67.22 | 5,766,143 | -1.29(-1.88%) |
| Jan 05, 2012 | 67.97 | 69.26 | 67.68 | 68.51 | 3,335,713 | +0.59(+0.87%) |
