| 2011-02-14 | 27.26 | 26.79 | 2321400 |
| 2011-02-11 | 27.17 | 27.35 | 1018800 |
| 2011-02-10 | 27.28 | 27.20 | 1383400 |
| 2011-02-09 | 27.49 | 27.35 | 1193700 |
| 2011-02-08 | 27.22 | 27.54 | 2072800 |
| 2011-02-07 | 27.82 | 27.50 | 1525300 |
| 2011-02-04 | 27.70 | 27.74 | 2125300 |
| 2011-02-03 | 26.89 | 27.78 | 3499200 |
| 2011-02-02 | 29.47 | 27.09 | 6753900 |
| 2011-02-01 | 30.72 | 30.94 | 1366200 |
| 2011-01-31 | 29.34 | 30.46 | 1419400 |
| 2011-01-28 | 30.39 | 29.36 | 1151200 |
| 2011-01-27 | 30.20 | 30.39 | 631300 |
| 2011-01-26 | 30.10 | 30.38 | 1190400 |
| 2011-01-25 | 29.40 | 30.03 | 1434400 |
| 2011-01-24 | 28.69 | 29.57 | 1235000 |
| 2011-01-21 | 29.24 | 28.84 | 1377800 |
| 2011-01-20 | 29.57 | 29.10 | 1277400 |
| 2011-01-19 | 30.64 | 29.75 | 1006400 |
| 2011-01-18 | 30.43 | 30.73 | 649300 |
| 2011-01-14 | 30.34 | 30.58 | 643900 |
| 2011-01-13 | 30.67 | 30.41 | 724200 |
| 2011-01-12 | 30.23 | 30.59 | 917000 |
| 2011-01-11 | 29.96 | 30.02 | 693500 |
| 2011-01-10 | 29.91 | 29.89 | 1297000 |
| 2011-01-07 | 30.26 | 29.72 | 1523200 |
| 2011-01-06 | 30.63 | 30.28 | 911400 |
| 2011-01-05 | 30.23 | 30.46 | 868200 |
| 2011-01-04 | 30.95 | 30.28 | 1397600 |
| 2011-01-03 | 32.32 | 30.94 | 2225200 |
| 2010-12-31 | 31.74 | 31.94 | 684700 |
| 2010-12-30 | 31.85 | 31.72 | 843000 |