| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| 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%) |
| Jan 04, 2012 | 76.75 | 76.78 | 76.74 | 76.75 | 0 | -0.14(-0.18%) |
| Dec 30, 2011 | 76.89 | 76.89 | 76.89 | 0 | -0.73(-0.94%) | |
| Dec 29, 2011 | 77.60 | 77.62 | 77.58 | 77.61 | 0 | -0.35(-0.45%) |
| Dec 28, 2011 | 77.97 | 77.97 | 77.96 | 77.96 | 0 | +0.10(+0.13%) |
| Dec 27, 2011 | 77.85 | 77.86 | 77.85 | 77.86 | 0 | -0.11(-0.14%) |
| Dec 26, 2011 | 77.97 | 77.97 | 77.97 | 0 | -0.13(-0.17%) | |
| Dec 23, 2011 | 78.11 | 78.11 | 78.11 | 0 | +0.07(+0.09%) | |
| Dec 21, 2011 | 78.01 | 78.04 | 78.01 | 78.04 | 0 | +0.20(+0.26%) |
| Dec 20, 2011 | 77.86 | 77.86 | 77.82 | 77.83 | 0 | -0.19(-0.24%) |
| Dec 19, 2011 | 78.01 | 78.04 | 78.01 | 78.03 | 0 | +0.27(+0.35%) |
| Dec 16, 2011 | 77.75 | 77.75 | 77.75 | 0 | -0.14(-0.18%) | |
| Dec 15, 2011 | 77.89 | 77.92 | 77.89 | 77.89 | 0 | -0.18(-0.23%) |
| Dec 14, 2011 | 78.07 | 78.08 | 78.07 | 78.07 | 0 | +0.11(+0.14%) |
| Dec 13, 2011 | 78.00 | 78.00 | 77.96 | 77.96 | 0 | +0.02(+0.03%) |
| Dec 12, 2011 | 77.96 | 77.96 | 77.92 | 77.94 | 0 | +0.33(+0.43%) |
| Dec 09, 2011 | 77.61 | 77.61 | 77.61 | 0 | -0.01(-0.01%) | |
| Dec 08, 2011 | 77.65 | 77.67 | 77.61 | 77.62 | 0 | -0.02(-0.03%) |
| Dec 07, 2011 | 77.64 | 77.65 | 77.64 | 77.64 | 0 | -0.07(-0.09%) |
| Dec 06, 2011 | 77.71 | 77.74 | 77.71 | 77.71 | 0 | -0.11(-0.14%) |
| Dec 05, 2011 | 77.81 | 77.83 | 77.79 | 77.82 | 0 | -0.12(-0.15%) |
| Dec 02, 2011 | 77.94 | 77.94 | 77.94 | 0 | +0.23(+0.30%) | |
| Dec 01, 2011 | 77.71 | 77.75 | 77.71 | 77.71 | 0 | +0.14(+0.18%) |
| Nov 30, 2011 | 77.56 | 77.61 | 77.56 | 77.57 | 0 | -0.37(-0.47%) |
| Nov 29, 2011 | 77.96 | 77.96 | 77.92 | 77.94 | 0 | -0.13(-0.17%) |
| Nov 28, 2011 | 78.01 | 78.08 | 78.00 | 78.07 | 0 | +0.35(+0.45%) |
| Nov 25, 2011 | 77.72 | 77.72 | 77.72 | 0 | +0.59(+0.76%) | |
| Nov 24, 2011 | 77.12 | 77.14 | 77.11 | 77.14 | 0 | -0.15(-0.19%) |
| Nov 23, 2011 | 77.29 | 77.29 | 77.28 | 77.29 | 0 | +0.31(+0.40%) |
| Nov 22, 2011 | 76.99 | 76.99 | 76.96 | 76.97 | 0 | +0.06(+0.08%) |
| Nov 21, 2011 | 76.88 | 76.93 | 76.88 | 76.92 | 0 | +0.11(+0.14%) |
| Nov 18, 2011 | 76.81 | 76.81 | 76.81 | 0 | -0.18(-0.23%) | |
| Nov 17, 2011 | 76.97 | 77.00 | 76.96 | 76.99 | 0 | -0.03(-0.04%) |
| Nov 16, 2011 | 77.04 | 77.04 | 77.00 | 77.01 | 0 | -0.01(-0.01%) |
| Nov 15, 2011 | 77.04 | 77.07 | 77.01 | 77.03 | 0 | -0.06(-0.08%) |
| Nov 14, 2011 | 77.10 | 77.12 | 77.07 | 77.08 | 0 | -0.08(-0.10%) |
| Nov 11, 2011 | 77.17 | 77.17 | 77.17 | 0 | -0.48(-0.62%) | |
| Nov 10, 2011 | 77.62 | 77.65 | 77.61 | 77.64 | 0 | -0.09(-0.12%) |
| Nov 09, 2011 | 77.79 | 77.81 | 77.74 | 77.74 | 0 | +0.01(+0.01%) |
| Nov 08, 2011 | 77.74 | 77.75 | 77.72 | 77.72 | 0 | -0.35(-0.45%) |
| Nov 07, 2011 | 78.06 | 78.10 | 78.04 | 78.07 | 0 | -0.16(-0.20%) |
| Nov 04, 2011 | 78.24 | 78.24 | 78.24 | 0 | +0.18(+0.23%) | |
| Nov 03, 2011 | 78.07 | 78.08 | 78.04 | 78.06 | 0 | -0.02(-0.03%) |
| Nov 02, 2011 | 78.07 | 78.08 | 78.04 | 78.07 | 0 | -0.31(-0.40%) |
