| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Feb 28, 2012 | 76.40 | 76.40 | 76.40 | 0 | +1.29(+1.72%) | |
| Feb 27, 2012 | 74.58 | 75.11 | 74.58 | 75.11 | 315 | -0.69(-0.91%) |
| Feb 24, 2012 | 76.44 | 76.44 | 75.78 | 75.80 | 1,526 | -0.22(-0.28%) |
| Feb 23, 2012 | 76.49 | 76.54 | 76.02 | 76.02 | 329 | +0.27(+0.36%) |
| Feb 22, 2012 | 75.75 | 75.75 | 75.75 | 75.75 | 250 | -0.70(-0.92%) |
| Feb 21, 2012 | 76.42 | 76.50 | 76.21 | 76.45 | 1,011 | +0.41(+0.54%) |
| Feb 20, 2012 | 76.06 | 76.30 | 76.04 | 76.04 | 612 | +1.49(+1.99%) |
| Feb 17, 2012 | 74.79 | 74.82 | 74.55 | 74.55 | 11,993 | +1.70(+2.33%) |
| Feb 16, 2012 | 73.16 | 72.85 | 72.85 | 72.85 | 106 | -3.54(-4.63%) |
| Feb 15, 2012 | 76.19 | 76.39 | 76.39 | 76.39 | 524 | +0.69(+0.91%) |
| Feb 14, 2012 | 75.98 | 75.98 | 75.70 | 75.70 | 2,250 | -0.95(-1.24%) |
| Feb 13, 2012 | 77.00 | 77.51 | 76.65 | 76.65 | 493 | +1.17(+1.55%) |
| Feb 10, 2012 | 75.33 | 77.60 | 75.32 | 75.48 | 211 | -2.12(-2.73%) |
| Feb 08, 2012 | 77.60 | 77.60 | 77.60 | 0 | +0.35(+0.45%) | |
| Feb 07, 2012 | 77.98 | 78.00 | 77.25 | 77.25 | 629 | -1.20(-1.53%) |
| Feb 06, 2012 | 79.32 | 78.95 | 78.45 | 78.45 | 307 | -0.85(-1.07%) |
| Feb 03, 2012 | 77.76 | 79.30 | 77.76 | 79.30 | 422 | +0.89(+1.14%) |
| Feb 02, 2012 | 78.64 | 78.64 | 77.86 | 78.41 | 6,655 | +2.17(+2.84%) |
| Feb 01, 2012 | 75.70 | 76.24 | 75.28 | 76.24 | 71 | +0.96(+1.28%) |
| Jan 31, 2012 | 75.47 | 75.47 | 75.28 | 75.28 | 170 | +1.26(+1.70%) |
| Jan 30, 2012 | 74.59 | 74.91 | 74.02 | 74.02 | 866 | -1.70(-2.25%) |
| Jan 27, 2012 | 76.49 | 75.72 | 75.72 | 75.72 | 236 | -1.18(-1.53%) |
| Jan 26, 2012 | 76.90 | 76.90 | 73.77 | 76.90 | 92 | +3.13(+4.25%) |
| Jan 25, 2012 | 74.60 | 74.60 | 73.77 | 73.77 | 417 | -0.23(-0.31%) |
| Jan 24, 2012 | 74.65 | 74.65 | 74.00 | 74.00 | 385 | -1.34(-1.78%) |
| Jan 23, 2012 | 74.51 | 75.34 | 74.51 | 75.34 | 1,029 | +0.27(+0.36%) |
| Jan 19, 2012 | 75.07 | 75.07 | 75.07 | 0 | +1.02(+1.38%) | |
| Jan 18, 2012 | 72.75 | 74.04 | 72.75 | 74.04 | 3,981 | +0.35(+0.47%) |
| Jan 17, 2012 | 73.99 | 73.99 | 73.69 | 73.69 | 166 | +1.85(+2.58%) |
| Jan 16, 2012 | 71.84 | 71.84 | 71.84 | 71.84 | 70 | +0.64(+0.90%) |
| Jan 13, 2012 | 72.73 | 72.81 | 70.24 | 71.20 | 2,881 | -0.40(-0.56%) |
| Jan 12, 2012 | 71.29 | 72.65 | 71.05 | 71.60 | 2,600 | +1.27(+1.81%) |
| Jan 11, 2012 | 70.73 | 70.73 | 70.33 | 70.33 | 10,063 | +0.31(+0.44%) |
| Jan 10, 2012 | 69.51 | 70.02 | 69.30 | 70.02 | 839 | +1.86(+2.72%) |
| Jan 09, 2012 | 68.03 | 68.16 | 68.03 | 68.16 | 108 | +0.06(+0.09%) |
| Jan 06, 2012 | 68.01 | 68.76 | 68.01 | 68.10 | 1,753 | +0.06(+0.09%) |
| Jan 05, 2012 | 68.26 | 68.26 | 68.03 | 68.04 | 134 | -0.61(-0.89%) |
| Jan 04, 2012 | 69.41 | 69.41 | 68.65 | 68.65 | 904 | +3.85(+5.94%) |
| Dec 30, 2011 | 64.80 | 64.80 | 64.80 | 64.80 | 327 | +0.50(+0.78%) |
| Dec 29, 2011 | 64.43 | 64.43 | 64.30 | 64.30 | 1,917 | -1.02(-1.56%) |
| Dec 28, 2011 | 65.38 | 65.38 | 65.32 | 65.32 | 25,522 | +0.78(+1.20%) |
| Dec 22, 2011 | 64.54 | 64.54 | 64.54 | 64.54 | 0 | +1.18(+1.86%) |
| Dec 21, 2011 | 65.24 | 65.24 | 63.37 | 63.37 | 87 | -1.05(-1.64%) |
| Dec 20, 2011 | 64.42 | 64.42 | 64.42 | 64.42 | 16 | +0.92(+1.45%) |
| Dec 19, 2011 | 63.50 | 63.50 | 63.50 | 63.50 | 50 | -0.55(-0.86%) |
| Dec 16, 2011 | 63.81 | 64.13 | 63.78 | 64.05 | 647 | +0.30(+0.47%) |
| Dec 15, 2011 | 62.76 | 63.92 | 62.76 | 63.75 | 3,892 | +0.32(+0.50%) |
| Dec 14, 2011 | 64.10 | 64.22 | 63.43 | 63.43 | 570 | -1.76(-2.70%) |
| Dec 13, 2011 | 65.20 | 65.20 | 65.20 | 65.20 | 51 | +0.71(+1.10%) |
| Dec 12, 2011 | 64.49 | 64.49 | 64.49 | 64.49 | 10 | -2.11(-3.17%) |
| Dec 09, 2011 | 66.60 | 66.60 | 65.54 | 66.60 | 120 | +0.60(+0.91%) |
| Dec 08, 2011 | 68.74 | 68.87 | 65.99 | 65.99 | 13,900 | -1.95(-2.86%) |
| Dec 07, 2011 | 68.23 | 68.23 | 67.94 | 67.94 | 3,558 | -1.28(-1.85%) |
| Dec 06, 2011 | 68.24 | 69.57 | 68.22 | 69.22 | 6,735 | -0.33(-0.47%) |
| Dec 05, 2011 | 68.86 | 69.86 | 68.86 | 69.55 | 1,578 | +1.08(+1.58%) |
| Dec 02, 2011 | 69.05 | 69.39 | 68.47 | 68.47 | 869 | +1.45(+2.16%) |