| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Feb 28, 2011 | 140.41 | 141.29 | 140.19 | 140.55 | 71 | +1.88(+1.36%) |
| Feb 25, 2011 | 137.79 | 139.50 | 137.79 | 138.67 | 92 | +1.87(+1.37%) |
| Feb 24, 2011 | 136.54 | 137.10 | 136.25 | 136.80 | 334 | -0.70(-0.51%) |
| Feb 23, 2011 | 138.70 | 138.70 | 137.50 | 137.50 | 8 | -2.17(-1.55%) |
| Feb 22, 2011 | 141.25 | 141.25 | 139.67 | 139.67 | 1,000 | -2.54(-1.79%) |
| Feb 21, 2011 | 142.73 | 142.73 | 142.21 | 142.21 | 11 | -1.73(-1.20%) |
| Feb 18, 2011 | 144.92 | 145.72 | 143.94 | 143.94 | 21 | +0.25(+0.17%) |
| Feb 17, 2011 | 144.17 | 144.17 | 142.94 | 143.69 | 62 | +0.65(+0.45%) |
| Feb 16, 2011 | 142.41 | 143.45 | 142.25 | 143.04 | 4,059 | +0.84(+0.59%) |
| Feb 15, 2011 | 141.92 | 142.84 | 141.92 | 142.20 | 18 | -1.45(-1.01%) |
| Feb 14, 2011 | 142.94 | 143.65 | 141.66 | 143.65 | 36 | +3.65(+2.61%) |
| Feb 11, 2011 | 139.36 | 140.00 | 139.36 | 140.00 | 0 | -0.06(-0.04%) |
| Feb 10, 2011 | 137.65 | 140.06 | 137.50 | 140.06 | 77 | +1.01(+0.73%) |
| Feb 09, 2011 | 140.56 | 140.56 | 138.95 | 139.05 | 1,014 | -3.77(-2.64%) |
| Feb 08, 2011 | 144.00 | 144.00 | 142.81 | 142.82 | 56 | -1.58(-1.09%) |
| Feb 07, 2011 | 143.57 | 144.80 | 143.57 | 144.40 | 61 | -0.57(-0.39%) |
| Feb 04, 2011 | 144.97 | 144.97 | 144.97 | 144.97 | 0 | +0.51(+0.35%) |
| Feb 03, 2011 | 144.10 | 144.87 | 144.10 | 144.46 | 159 | +0.63(+0.44%) |
| Feb 02, 2011 | 143.51 | 143.83 | 143.51 | 143.83 | 0 | +0.75(+0.52%) |
| Feb 01, 2011 | 142.23 | 143.63 | 142.23 | 143.08 | 12 | -0.26(-0.18%) |
| Jan 31, 2011 | 144.64 | 144.64 | 143.34 | 143.34 | 163 | -1.43(-0.99%) |
| Jan 28, 2011 | 145.32 | 145.32 | 144.77 | 144.77 | 2 | -0.07(-0.05%) |
| Jan 27, 2011 | 145.83 | 146.56 | 144.84 | 144.84 | 6,972 | -0.29(-0.20%) |
| Jan 26, 2011 | 145.13 | 145.50 | 144.87 | 145.13 | 53 | +1.20(+0.83%) |
| Jan 25, 2011 | 145.00 | 145.00 | 143.53 | 143.93 | 186 | -1.14(-0.79%) |
| Jan 24, 2011 | 146.75 | 146.75 | 145.07 | 145.07 | 75 | -1.93(-1.31%) |
| Jan 21, 2011 | 147.96 | 148.65 | 147.00 | 147.00 | 133 | -1.66(-1.12%) |
| Jan 20, 2011 | 149.92 | 149.92 | 148.12 | 148.66 | 1,070 | -2.42(-1.60%) |
| Jan 19, 2011 | 153.14 | 153.20 | 151.08 | 151.08 | 4,099 | -0.33(-0.22%) |
| Jan 18, 2011 | 152.42 | 152.42 | 150.92 | 151.41 | 44 | -1.10(-0.72%) |
| Jan 17, 2011 | 152.70 | 152.70 | 152.51 | 152.51 | 0 | -1.11(-0.72%) |
| Jan 14, 2011 | 153.51 | 153.62 | 153.51 | 153.62 | 0 | +0.17(+0.11%) |
| Jan 13, 2011 | 157.42 | 157.42 | 153.45 | 153.45 | 120 | -3.81(-2.42%) |
| Jan 12, 2011 | 157.11 | 159.20 | 157.11 | 157.26 | 223 | +1.93(+1.24%) |
| Jan 11, 2011 | 155.93 | 155.93 | 154.70 | 155.33 | 40 | +2.18(+1.42%) |
| Jan 10, 2011 | 155.61 | 155.61 | 153.15 | 153.15 | 106 | -1.23(-0.80%) |
| Jan 07, 2011 | 154.45 | 154.45 | 154.38 | 154.38 | 87 | -0.42(-0.27%) |
| Jan 06, 2011 | 154.84 | 155.82 | 154.78 | 154.80 | 275 | -0.13(-0.08%) |
| Jan 05, 2011 | 154.93 | 154.93 | 154.93 | 154.93 | 0 | +3.37(+2.22%) |
| Jan 04, 2011 | 152.40 | 152.40 | 150.62 | 151.56 | 76 | +0.69(+0.46%) |
| Jan 03, 2011 | 151.58 | 151.58 | 150.87 | 150.87 | 0 | +2.79(+1.88%) |
| Dec 30, 2010 | 148.08 | 148.08 | 148.08 | 0 | -1.07(-0.72%) | |
| Dec 29, 2010 | 149.24 | 149.24 | 149.15 | 149.15 | 0 | +1.90(+1.29%) |
| Dec 28, 2010 | 147.72 | 148.35 | 147.25 | 147.25 | 194 | -2.37(-1.58%) |
| Dec 27, 2010 | 151.18 | 151.18 | 149.62 | 149.62 | 183 | +0.02(+0.01%) |
| Dec 23, 2010 | 149.60 | 149.60 | 149.60 | 0 | -2.05(-1.35%) | |
| Dec 22, 2010 | 150.04 | 151.65 | 150.04 | 151.65 | 238 | +0.61(+0.40%) |
| Dec 21, 2010 | 151.04 | 151.04 | 151.04 | 151.04 | 0 | +2.68(+1.81%) |
| Dec 20, 2010 | 147.41 | 148.36 | 147.41 | 148.36 | 9 | -0.98(-0.66%) |
| Dec 17, 2010 | 146.51 | 149.34 | 146.51 | 149.34 | 0 | +1.58(+1.07%) |
| Dec 16, 2010 | 147.25 | 147.79 | 147.25 | 147.76 | 5 | -0.68(-0.46%) |
| Dec 15, 2010 | 148.21 | 148.44 | 148.21 | 148.44 | 10 | -2.06(-1.37%) |
| Dec 14, 2010 | 150.25 | 150.50 | 149.86 | 150.50 | 88 | +0.29(+0.19%) |
| Dec 13, 2010 | 150.25 | 150.25 | 150.21 | 150.21 | 48 | -0.51(-0.34%) |
| Dec 10, 2010 | 150.30 | 150.72 | 150.30 | 150.72 | 3 | +0.22(+0.15%) |
| Dec 09, 2010 | 150.50 | 150.50 | 150.50 | 150.50 | 0 | -1.50(-0.99%) |
| Dec 08, 2010 | 152.04 | 152.04 | 152.00 | 152.00 | 75 | -1.55(-1.01%) |
| Dec 07, 2010 | 151.81 | 153.55 | 151.81 | 153.55 | 0 | +1.26(+0.83%) |
| Dec 06, 2010 | 150.83 | 152.29 | 150.83 | 152.29 | 20 | -1.91(-1.24%) |
| Dec 02, 2010 | 154.20 | 154.20 | 154.20 | 154.20 | 0 | -1.52(-0.98%) |