| 2011-04-07 | 26.54 | 26.54 | 300 |
| 2011-04-06 | 26.83 | 26.65 | 4900 |
| 2011-04-05 | 26.58 | 26.64 | 1300 |
| 2011-04-04 | 26.59 | 26.52 | 400 |
| 2011-04-01 | 26.57 | 26.57 | 1300 |
| 2011-03-31 | 26.38 | 26.30 | 700 |
| 2011-03-30 | 26.12 | 26.32 | 700 |
| 2011-03-29 | 26.00 | 26.00 | 200 |
| 2011-03-28 | 25.90 | 25.82 | 2400 |
| 2011-03-25 | 26.08 | 25.90 | 1400 |
| 2011-03-24 | 25.62 | 25.84 | 36400 |
| 2011-03-23 | 25.41 | 25.31 | 500 |
| 2011-03-22 | 25.39 | 25.40 | 800 |
| 2011-03-21 | 25.42 | 25.51 | 1200 |
| 2011-03-18 | 25.28 | 25.07 | 3300 |
| 2011-03-17 | 25.00 | 24.96 | 5200 |
| 2011-03-16 | 24.92 | 24.70 | 1300 |
| 2011-03-15 | 24.72 | 24.97 | 3000 |
| 2011-03-14 | 25.24 | 25.24 | 12400 |
| 2011-03-11 | 25.49 | 25.53 | 400 |
| 2011-03-10 | 25.58 | 25.38 | 1300 |
| 2011-03-09 | 25.72 | 25.91 | 4900 |
| 2011-03-08 | 25.58 | 25.93 | 3200 |
| 2011-03-07 | 25.86 | 25.50 | 1900 |
| 2011-03-04 | 26.02 | 25.90 | 1800 |
| 2011-03-03 | 25.92 | 25.92 | 100 |
| 2011-03-02 | 25.50 | 25.51 | 1700 |
| 2011-03-01 | 25.81 | 25.54 | 5700 |
| 2011-02-28 | 25.83 | 25.78 | 5200 |
| 2011-02-25 | 25.49 | 25.69 | 3200 |
| 2011-02-24 | 25.25 | 25.29 | 8200 |
| 2011-02-23 | 25.77 | 25.26 | 6800 |
|
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