| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Mar 30, 2012 | 82.86 | 82.86 | 82.86 | 0 | +0.45(+0.55%) | |
| Mar 29, 2012 | 82.38 | 82.46 | 82.38 | 82.40 | 0 | -0.48(-0.58%) |
| Mar 28, 2012 | 82.88 | 82.89 | 82.86 | 82.89 | 0 | -0.31(-0.37%) |
| Mar 27, 2012 | 83.17 | 83.19 | 83.14 | 83.19 | 0 | +0.32(+0.39%) |
| Mar 26, 2012 | 82.86 | 82.88 | 82.85 | 82.88 | 0 | +0.47(+0.57%) |
| Mar 23, 2012 | 82.40 | 82.40 | 82.40 | 0 | -0.23(-0.28%) | |
| Mar 22, 2012 | 82.54 | 82.64 | 82.54 | 82.64 | 0 | -0.79(-0.95%) |
| Mar 21, 2012 | 83.38 | 83.43 | 83.35 | 83.43 | 0 | -0.28(-0.33%) |
| Mar 20, 2012 | 83.72 | 83.72 | 83.67 | 83.71 | 0 | +0.31(+0.37%) |
| Mar 19, 2012 | 83.33 | 83.43 | 83.32 | 83.39 | 0 | +0.02(+0.02%) |
| Mar 16, 2012 | 83.38 | 83.38 | 83.38 | 0 | -0.21(-0.25%) | |
| Mar 15, 2012 | 83.51 | 83.61 | 83.49 | 83.58 | 0 | -0.13(-0.16%) |
| Mar 14, 2012 | 83.67 | 83.75 | 83.65 | 83.71 | 0 | +0.84(+1.01%) |
| Mar 13, 2012 | 82.90 | 83.01 | 82.88 | 82.88 | 0 | +0.59(+0.72%) |
| Mar 12, 2012 | 82.32 | 82.32 | 82.24 | 82.29 | 0 | -0.16(-0.19%) |
| Mar 09, 2012 | 82.44 | 82.44 | 82.44 | 0 | +0.92(+1.13%) | |
| Mar 08, 2012 | 81.57 | 81.57 | 81.53 | 81.53 | 0 | +0.37(+0.46%) |
| Mar 07, 2012 | 81.11 | 81.17 | 81.11 | 81.15 | 0 | +0.42(+0.52%) |
| Mar 06, 2012 | 80.85 | 80.86 | 80.68 | 80.74 | 0 | -0.78(-0.96%) |
| Mar 05, 2012 | 81.54 | 81.56 | 81.50 | 81.51 | 0 | -0.30(-0.37%) |
| Mar 02, 2012 | 81.82 | 81.82 | 81.82 | 0 | +0.69(+0.85%) | |
| Mar 01, 2012 | 81.11 | 81.14 | 81.07 | 81.12 | 0 | -0.16(-0.20%) |
| Feb 29, 2012 | 81.18 | 81.31 | 81.18 | 81.29 | 0 | +0.79(+0.98%) |
| Feb 28, 2012 | 80.46 | 80.50 | 80.43 | 80.50 | 0 | +0.02(+0.02%) |
| Feb 27, 2012 | 80.60 | 80.61 | 80.43 | 80.47 | 0 | -0.74(-0.91%) |
| Feb 24, 2012 | 81.21 | 81.21 | 81.21 | 0 | +1.24(+1.55%) | |
| Feb 23, 2012 | 79.94 | 79.97 | 79.93 | 79.97 | 0 | -0.31(-0.39%) |
| Feb 22, 2012 | 80.26 | 80.29 | 80.22 | 80.29 | 0 | +0.55(+0.69%) |
| Feb 21, 2012 | 79.68 | 79.74 | 79.68 | 79.74 | 0 | +0.12(+0.15%) |
| Feb 20, 2012 | 79.64 | 79.64 | 79.61 | 79.61 | 0 | +0.08(+0.10%) |
| Feb 17, 2012 | 79.54 | 79.54 | 79.54 | 0 | +0.65(+0.82%) | |
| Feb 16, 2012 | 78.89 | 78.89 | 78.85 | 78.89 | 0 | +0.50(+0.64%) |
| Feb 15, 2012 | 78.39 | 78.40 | 78.36 | 78.39 | 0 | -0.02(-0.03%) |
| Feb 14, 2012 | 78.43 | 78.44 | 78.39 | 78.40 | 0 | +0.85(+1.10%) |
| Feb 13, 2012 | 77.58 | 77.61 | 77.54 | 77.56 | 0 | -0.04(-0.05%) |
| Feb 10, 2012 | 77.60 | 77.60 | 77.60 | 0 | -0.05(-0.06%) | |
| Feb 09, 2012 | 77.68 | 77.68 | 77.64 | 77.64 | 0 | +0.60(+0.78%) |
| Feb 08, 2012 | 77.06 | 77.07 | 77.04 | 77.04 | 0 | +0.26(+0.34%) |
| Feb 07, 2012 | 76.76 | 76.81 | 76.75 | 76.79 | 0 | +0.22(+0.29%) |
| Feb 06, 2012 | 76.53 | 76.57 | 76.53 | 76.57 | 0 | -0.03(-0.04%) |
| Feb 03, 2012 | 76.60 | 76.60 | 76.60 | 0 | +0.42(+0.55%) | |
| Feb 02, 2012 | 76.21 | 76.21 | 76.17 | 76.18 | 0 | +0.00(+0.00%) |
| Feb 01, 2012 | 76.17 | 76.18 | 76.15 | 76.18 | 0 | -0.12(-0.16%) |
| Jan 31, 2012 | 76.24 | 76.29 | 76.22 | 76.29 | 0 | -0.07(-0.09%) |
| Jan 30, 2012 | 76.36 | 76.39 | 76.36 | 76.36 | 0 | -0.35(-0.46%) |
| Jan 27, 2012 | 76.71 | 76.71 | 76.71 | 0 | -0.73(-0.94%) | |
| Jan 26, 2012 | 77.43 | 77.46 | 77.40 | 77.44 | 0 | -0.24(-0.31%) |
| Jan 25, 2012 | 77.75 | 77.76 | 77.68 | 77.68 | 0 | +0.04(+0.05%) |
| Jan 24, 2012 | 77.68 | 77.71 | 77.64 | 77.64 | 0 | +0.68(+0.88%) |
| Jan 23, 2012 | 77.00 | 77.00 | 76.94 | 76.96 | 0 | -0.06(-0.08%) |
| Jan 20, 2012 | 77.03 | 77.03 | 77.03 | 0 | -0.07(-0.09%) | |
| Jan 19, 2012 | 77.10 | 77.11 | 77.04 | 77.10 | 0 | +0.32(+0.42%) |
| Jan 18, 2012 | 76.78 | 76.79 | 76.75 | 76.78 | 0 | -0.05(-0.07%) |
| Jan 17, 2012 | 76.82 | 76.82 | 76.82 | 76.82 | 0 | +0.03(+0.04%) |
| Jan 16, 2012 | 76.78 | 76.81 | 76.78 | 76.79 | 0 | -0.17(-0.22%) |
| Jan 13, 2012 | 76.96 | 76.96 | 76.96 | 0 | +0.20(+0.26%) | |
| Jan 12, 2012 | 76.81 | 76.82 | 76.76 | 76.76 | 0 | -0.11(-0.14%) |
| Jan 11, 2012 | 76.89 | 76.89 | 76.86 | 76.88 | 0 | +0.05(+0.07%) |
| Jan 10, 2012 | 76.81 | 76.83 | 76.81 | 76.82 | 0 | -0.03(-0.04%) |
| Jan 09, 2012 | 76.86 | 76.86 | 76.85 | 76.86 | 0 | -0.11(-0.14%) |
| Jan 06, 2012 | 76.96 | 76.96 | 76.96 | 0 | -0.15(-0.19%) | |
| Jan 05, 2012 | 77.11 | 77.11 | 77.06 | 77.11 | 0 | +0.37(+0.48%) |
