| 2011-04-07 | 19.90 | 19.37 | 1977900 |
| 2011-04-06 | 20.10 | 19.85 | 1526000 |
| 2011-04-05 | 19.97 | 19.87 | 2252600 |
| 2011-04-04 | 20.25 | 19.65 | 3148300 |
| 2011-04-01 | 21.21 | 20.34 | 1974200 |
| 2011-03-31 | 21.13 | 21.03 | 1339200 |
| 2011-03-30 | 21.48 | 21.11 | 1733700 |
| 2011-03-29 | 21.49 | 21.34 | 1734500 |
| 2011-03-28 | 21.28 | 21.49 | 2192600 |
| 2011-03-25 | 21.06 | 21.16 | 1636100 |
| 2011-03-24 | 20.80 | 20.83 | 1592000 |
| 2011-03-23 | 20.35 | 20.45 | 1832800 |
| 2011-03-22 | 20.89 | 20.37 | 1870600 |
| 2011-03-21 | 20.36 | 20.95 | 2775500 |
| 2011-03-18 | 20.86 | 19.97 | 4138000 |
| 2011-03-17 | 20.98 | 20.45 | 2372300 |
| 2011-03-16 | 21.10 | 20.31 | 4075800 |
| 2011-03-15 | 20.68 | 21.04 | 3846500 |
| 2011-03-14 | 20.77 | 21.83 | 4047700 |
| 2011-03-11 | 20.83 | 21.00 | 2054500 |
| 2011-03-10 | 20.73 | 21.25 | 4471900 |
| 2011-03-09 | 22.94 | 21.24 | 4471700 |
| 2011-03-08 | 23.03 | 23.11 | 2288000 |
| 2011-03-07 | 24.61 | 23.12 | 4580200 |
| 2011-03-04 | 25.15 | 24.56 | 3424600 |
| 2011-03-03 | 23.69 | 24.98 | 4620800 |
| 2011-03-02 | 22.91 | 23.33 | 2241100 |
| 2011-03-01 | 23.46 | 22.96 | 3270000 |
| 2011-02-28 | 24.23 | 23.35 | 2744100 |
| 2011-02-25 | 23.26 | 23.80 | 2369600 |
| 2011-02-24 | 22.01 | 22.79 | 3026000 |
| 2011-02-23 | 23.25 | 22.22 | 5325500 |
|
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