| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Mar 31, 2011 | 83.18 | 83.23 | 83.18 | 83.18 | 0 | +0.25(+0.30%) |
| Mar 30, 2011 | 82.85 | 82.93 | 82.83 | 82.93 | 0 | +0.46(+0.56%) |
| Mar 29, 2011 | 82.46 | 82.49 | 82.46 | 82.46 | 0 | +0.74(+0.91%) |
| Mar 28, 2011 | 81.72 | 81.74 | 81.71 | 81.72 | 0 | +0.25(+0.31%) |
| Mar 25, 2011 | 81.47 | 81.47 | 81.47 | 0 | +0.47(+0.58%) | |
| Mar 24, 2011 | 80.99 | 81.03 | 80.94 | 81.00 | 0 | +0.07(+0.09%) |
| Mar 23, 2011 | 80.94 | 81.00 | 80.88 | 80.93 | 0 | -0.05(-0.06%) |
| Mar 22, 2011 | 80.97 | 81.01 | 80.96 | 80.99 | 0 | -0.15(-0.18%) |
| Mar 21, 2011 | 81.08 | 81.17 | 81.06 | 81.14 | 0 | +0.38(+0.47%) |
| Mar 18, 2011 | 80.75 | 80.75 | 80.75 | 0 | +1.46(+1.84%) | |
| Mar 17, 2011 | 78.94 | 79.36 | 78.89 | 79.29 | 0 | +1.28(+1.63%) |
| Mar 16, 2011 | 77.60 | 79.86 | 77.05 | 78.02 | 0 | -2.79(-3.45%) |
| Mar 15, 2011 | 80.71 | 80.82 | 80.68 | 80.81 | 0 | -0.92(-1.13%) |
| Mar 14, 2011 | 81.64 | 81.74 | 81.64 | 81.72 | 0 | -0.04(-0.06%) |
| Mar 11, 2011 | 81.77 | 81.77 | 81.77 | 0 | -1.14(-1.37%) | |
| Mar 10, 2011 | 82.94 | 82.97 | 82.89 | 82.90 | 0 | +0.13(+0.16%) |
| Mar 09, 2011 | 82.78 | 82.79 | 82.75 | 82.78 | 0 | +0.10(+0.12%) |
| Mar 08, 2011 | 82.65 | 82.68 | 82.65 | 82.68 | 0 | +0.37(+0.45%) |
| Mar 07, 2011 | 82.26 | 82.38 | 82.25 | 82.31 | 0 | -0.03(-0.04%) |
| Mar 04, 2011 | 82.33 | 82.33 | 82.33 | 0 | -0.07(-0.08%) | |
| Mar 03, 2011 | 82.39 | 82.43 | 82.39 | 82.40 | 0 | +0.59(+0.72%) |
| Mar 02, 2011 | 81.89 | 81.89 | 81.78 | 81.82 | 0 | -0.09(-0.11%) |
| Mar 01, 2011 | 81.93 | 81.93 | 81.86 | 81.90 | 0 | +0.14(+0.17%) |
| Feb 28, 2011 | 81.79 | 81.83 | 81.75 | 81.76 | 0 | +0.12(+0.15%) |
| Feb 25, 2011 | 81.64 | 81.64 | 81.64 | 0 | -0.27(-0.33%) | |
| Feb 24, 2011 | 81.82 | 81.96 | 81.82 | 81.92 | 0 | -0.51(-0.62%) |
| Feb 23, 2011 | 82.46 | 82.47 | 82.39 | 82.43 | 0 | -0.35(-0.42%) |
| Feb 22, 2011 | 82.82 | 82.82 | 82.75 | 82.78 | 0 | -0.37(-0.44%) |
| Feb 21, 2011 | 83.24 | 83.25 | 83.13 | 83.14 | 0 | -0.05(-0.05%) |
| Feb 18, 2011 | 83.19 | 83.19 | 83.19 | 0 | -0.13(-0.16%) | |
| Feb 17, 2011 | 83.32 | 83.39 | 83.32 | 83.32 | 0 | -0.35(-0.42%) |
| Feb 16, 2011 | 83.64 | 83.68 | 83.64 | 83.68 | 0 | -0.06(-0.07%) |
| Feb 15, 2011 | 83.79 | 83.79 | 83.72 | 83.74 | 0 | +0.46(+0.55%) |
| Feb 14, 2011 | 83.29 | 83.29 | 83.25 | 83.28 | 0 | -0.15(-0.18%) |
| Feb 11, 2011 | 83.43 | 83.43 | 83.43 | 0 | +0.07(+0.08%) | |
| Feb 10, 2011 | 83.25 | 83.36 | 83.24 | 83.36 | 0 | +1.00(+1.21%) |
| Feb 09, 2011 | 82.36 | 82.40 | 82.35 | 82.36 | 0 | +0.07(+0.09%) |
| Feb 08, 2011 | 82.33 | 82.35 | 82.29 | 82.29 | 0 | -0.05(-0.06%) |
| Feb 07, 2011 | 82.35 | 82.36 | 82.32 | 82.33 | 0 | +0.13(+0.16%) |
| Feb 04, 2011 | 82.21 | 82.21 | 82.21 | 0 | +0.58(+0.71%) | |
| Feb 03, 2011 | 81.65 | 81.68 | 81.61 | 81.62 | 0 | +0.07(+0.09%) |
| Feb 02, 2011 | 81.57 | 81.57 | 81.54 | 81.56 | 0 | +0.19(+0.23%) |
| Feb 01, 2011 | 81.39 | 81.40 | 81.36 | 81.36 | 0 | -0.70(-0.85%) |
| Jan 31, 2011 | 82.06 | 82.07 | 82.06 | 82.07 | 0 | -0.08(-0.10%) |
| Jan 28, 2011 | 82.14 | 82.14 | 82.14 | 0 | -0.69(-0.83%) | |
| Jan 27, 2011 | 82.85 | 82.88 | 82.83 | 82.83 | 0 | +0.60(+0.73%) |
| Jan 26, 2011 | 82.19 | 82.26 | 82.18 | 82.24 | 0 | +0.04(+0.05%) |
| Jan 25, 2011 | 82.19 | 82.22 | 82.15 | 82.19 | 0 | -0.34(-0.41%) |
| Jan 24, 2011 | 82.54 | 82.57 | 82.50 | 82.54 | 0 | -0.03(-0.04%) |
| Jan 21, 2011 | 82.57 | 82.57 | 82.57 | 0 | -0.42(-0.51%) | |
| Jan 20, 2011 | 82.96 | 83.03 | 82.93 | 82.99 | 0 | +0.88(+1.07%) |
| Jan 19, 2011 | 82.04 | 82.12 | 82.04 | 82.11 | 0 | -0.50(-0.61%) |
| Jan 18, 2011 | 82.61 | 82.64 | 82.60 | 82.61 | 0 | -0.08(-0.10%) |
| Jan 17, 2011 | 82.67 | 82.71 | 82.67 | 82.68 | 0 | -0.19(-0.23%) |
| Jan 14, 2011 | 82.88 | 82.88 | 82.88 | 0 | +0.11(+0.13%) | |
| Jan 13, 2011 | 82.76 | 82.82 | 82.75 | 82.76 | 0 | -0.26(-0.31%) |
| Jan 12, 2011 | 83.03 | 83.06 | 83.00 | 83.03 | 0 | -0.31(-0.37%) |
| Jan 11, 2011 | 83.31 | 83.36 | 83.29 | 83.33 | 0 | +0.64(+0.77%) |
| Jan 10, 2011 | 82.71 | 82.72 | 82.68 | 82.69 | 0 | -0.46(-0.55%) |
| Jan 07, 2011 | 83.15 | 83.15 | 83.15 | 0 | -0.12(-0.14%) | |
| Jan 06, 2011 | 83.31 | 83.31 | 83.26 | 83.28 | 0 | +0.05(+0.06%) |
| Jan 05, 2011 | 83.25 | 83.25 | 83.21 | 83.22 | 0 | +1.13(+1.38%) |
| Jan 04, 2011 | 82.07 | 82.11 | 82.07 | 82.10 | 0 | +0.36(+0.44%) |
