| 2011-02-14 | 30.23 | 30.06 | 300 |
| 2011-02-11 | 29.94 | 29.92 | 300 |
| 2011-02-10 | 30.52 | 30.59 | 1700 |
| 2011-02-09 | 30.27 | 30.53 | 8000 |
| 2011-02-08 | 31.02 | 30.69 | 11800 |
| 2011-02-07 | 30.55 | 30.55 | 000 |
| 2011-02-04 | 30.66 | 30.55 | 6800 |
| 2011-02-03 | 30.66 | 30.57 | 400 |
| 2011-02-02 | 30.15 | 30.15 | 000 |
| 2011-02-01 | 30.15 | 30.15 | 000 |
| 2011-01-31 | 29.84 | 30.15 | 1000 |
| 2011-01-28 | 29.83 | 29.83 | 200 |
| 2011-01-27 | 30.49 | 30.32 | 300 |
| 2011-01-26 | 30.59 | 30.59 | 100 |
| 2011-01-25 | 30.70 | 30.70 | 000 |
| 2011-01-24 | 30.37 | 30.70 | 1500 |
| 2011-01-21 | 30.11 | 30.11 | 200 |
| 2011-01-20 | 30.13 | 30.13 | 100 |
| 2011-01-19 | 30.73 | 30.25 | 1400 |
| 2011-01-18 | 30.41 | 30.45 | 3400 |
| 2011-01-14 | 30.15 | 30.15 | 600 |
| 2011-01-13 | 30.10 | 30.10 | 000 |
| 2011-01-12 | 30.05 | 30.10 | 19300 |
| 2011-01-11 | 30.17 | 30.01 | 45200 |
| 2011-01-10 | 30.09 | 30.06 | 1000 |
| 2011-01-07 | 30.11 | 30.11 | 000 |
| 2011-01-06 | 30.11 | 30.11 | 200 |
| 2011-01-05 | 30.35 | 30.53 | 51700 |
| 2011-01-04 | 30.85 | 30.70 | 400 |
| 2011-01-03 | 31.18 | 31.19 | 700 |
| 2010-12-31 | 30.95 | 30.95 | 200 |
| 2010-12-30 | 31.10 | 31.10 | 000 |
|
|