| 2011-02-14 | 13.75 | 13.40 | 542400 |
| 2011-02-11 | 13.96 | 14.10 | 200700 |
| 2011-02-10 | 14.33 | 14.19 | 108600 |
| 2011-02-09 | 14.48 | 14.45 | 250900 |
| 2011-02-08 | 15.49 | 14.67 | 389600 |
| 2011-02-07 | 15.74 | 15.50 | 314000 |
| 2011-02-04 | 15.06 | 15.50 | 319900 |
| 2011-02-03 | 16.53 | 15.00 | 1238000 |
| 2011-02-02 | 19.05 | 19.49 | 241600 |
| 2011-02-01 | 18.70 | 18.98 | 183800 |
| 2011-01-31 | 18.30 | 18.55 | 207100 |
| 2011-01-28 | 17.80 | 17.98 | 274000 |
| 2011-01-27 | 17.40 | 17.22 | 93300 |
| 2011-01-26 | 16.16 | 17.14 | 144800 |
| 2011-01-25 | 17.05 | 16.15 | 139200 |
| 2011-01-24 | 16.69 | 17.02 | 170000 |
| 2011-01-21 | 17.23 | 16.76 | 203200 |
| 2011-01-20 | 17.06 | 16.91 | 432900 |
| 2011-01-19 | 19.82 | 17.50 | 669100 |
| 2011-01-18 | 19.54 | 19.85 | 119100 |
| 2011-01-14 | 19.17 | 19.23 | 166500 |
| 2011-01-13 | 19.73 | 19.00 | 355000 |
| 2011-01-12 | 18.64 | 19.58 | 350500 |
| 2011-01-11 | 17.96 | 18.16 | 242400 |
| 2011-01-10 | 17.59 | 17.66 | 195500 |
| 2011-01-07 | 17.04 | 17.31 | 262500 |
| 2011-01-06 | 17.05 | 16.91 | 187400 |
| 2011-01-05 | 17.21 | 17.11 | 233400 |
| 2011-01-04 | 18.12 | 16.65 | 449300 |
| 2011-01-03 | 16.07 | 17.50 | 448200 |
| 2010-12-31 | 14.24 | 15.68 | 328800 |
| 2010-12-30 | 13.83 | 13.77 | 30500 |
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