| 2011-02-14 | 18.64 | 18.57 | 375000 |
| 2011-02-11 | 18.45 | 18.71 | 214300 |
| 2011-02-10 | 18.32 | 18.57 | 372600 |
| 2011-02-09 | 18.21 | 18.38 | 440900 |
| 2011-02-08 | 18.02 | 18.26 | 337900 |
| 2011-02-07 | 17.93 | 18.01 | 308000 |
| 2011-02-04 | 17.66 | 17.77 | 377300 |
| 2011-02-03 | 17.84 | 17.72 | 458200 |
| 2011-02-02 | 17.83 | 17.90 | 405000 |
| 2011-02-01 | 17.67 | 17.96 | 605700 |
| 2011-01-31 | 17.49 | 17.50 | 543700 |
| 2011-01-28 | 17.75 | 17.50 | 1041400 |
| 2011-01-27 | 17.48 | 17.79 | 513500 |
| 2011-01-26 | 17.18 | 17.54 | 616900 |
| 2011-01-25 | 17.22 | 17.17 | 462800 |
| 2011-01-24 | 17.10 | 17.26 | 351000 |
| 2011-01-21 | 17.15 | 17.06 | 513000 |
| 2011-01-20 | 17.11 | 17.08 | 475100 |
| 2011-01-19 | 17.44 | 17.21 | 1479100 |
| 2011-01-18 | 16.70 | 16.95 | 610000 |
| 2011-01-14 | 17.34 | 16.97 | 693500 |
| 2011-01-13 | 17.37 | 17.34 | 624800 |
| 2011-01-12 | 17.40 | 17.36 | 1636800 |
| 2011-01-11 | 16.80 | 16.82 | 673200 |
| 2011-01-10 | 16.55 | 17.01 | 1068700 |
| 2011-01-07 | 16.26 | 16.00 | 461700 |
| 2011-01-06 | 16.17 | 16.20 | 546700 |
| 2011-01-05 | 16.14 | 16.09 | 739500 |
| 2011-01-04 | 16.65 | 16.23 | 776500 |
| 2011-01-03 | 16.69 | 16.55 | 438900 |
| 2010-12-31 | 16.74 | 16.60 | 163200 |
| 2010-12-30 | 16.80 | 16.80 | 182600 |
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