| 2011-04-07 | 26.95 | 26.83 | 121900 |
| 2011-04-06 | 26.94 | 26.92 | 172200 |
| 2011-04-05 | 26.49 | 26.81 | 93300 |
| 2011-04-04 | 26.61 | 26.49 | 74000 |
| 2011-04-01 | 26.32 | 26.55 | 86800 |
| 2011-03-31 | 26.30 | 26.11 | 252600 |
| 2011-03-30 | 26.04 | 26.31 | 167200 |
| 2011-03-29 | 25.81 | 26.01 | 187500 |
| 2011-03-28 | 26.11 | 25.88 | 183800 |
| 2011-03-25 | 25.76 | 25.98 | 218600 |
| 2011-03-24 | 26.00 | 25.75 | 100600 |
| 2011-03-23 | 25.86 | 25.89 | 135200 |
| 2011-03-22 | 26.00 | 25.89 | 68800 |
| 2011-03-21 | 25.67 | 25.95 | 123400 |
| 2011-03-18 | 24.96 | 25.38 | 327800 |
| 2011-03-17 | 25.16 | 24.63 | 196300 |
| 2011-03-16 | 25.06 | 24.68 | 166500 |
| 2011-03-15 | 24.66 | 25.11 | 219800 |
| 2011-03-14 | 24.86 | 25.31 | 149700 |
| 2011-03-11 | 24.99 | 25.18 | 159400 |
| 2011-03-10 | 25.46 | 25.09 | 316400 |
| 2011-03-09 | 25.66 | 25.66 | 110600 |
| 2011-03-08 | 25.59 | 25.77 | 154900 |
| 2011-03-07 | 25.94 | 25.50 | 258800 |
| 2011-03-04 | 25.94 | 26.00 | 272300 |
| 2011-03-03 | 27.01 | 26.02 | 547900 |
| 2011-03-02 | 26.66 | 27.15 | 825000 |
| 2011-03-01 | 26.41 | 26.76 | 1231100 |
| 2011-02-28 | 27.83 | 28.58 | 345900 |
| 2011-02-25 | 27.14 | 27.68 | 219000 |
| 2011-02-24 | 27.45 | 26.98 | 298100 |
| 2011-02-23 | 27.40 | 27.36 | 361800 |
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