| 2011-02-14 | 4.07 | 4.11 | 118500 |
| 2011-02-11 | 4.19 | 4.09 | 69200 |
| 2011-02-10 | 4.31 | 4.20 | 67800 |
| 2011-02-09 | 4.24 | 4.27 | 17900 |
| 2011-02-08 | 4.14 | 4.27 | 48100 |
| 2011-02-07 | 4.22 | 4.19 | 67500 |
| 2011-02-04 | 4.38 | 4.24 | 46100 |
| 2011-02-03 | 4.37 | 4.41 | 36400 |
| 2011-02-02 | 4.39 | 4.40 | 20700 |
| 2011-02-01 | 4.41 | 4.39 | 72400 |
| 2011-01-31 | 4.50 | 4.40 | 53100 |
| 2011-01-28 | 4.37 | 4.55 | 166800 |
| 2011-01-27 | 4.35 | 4.33 | 48300 |
| 2011-01-26 | 4.04 | 4.20 | 46700 |
| 2011-01-25 | 3.95 | 4.01 | 31600 |
| 2011-01-24 | 4.02 | 3.99 | 166300 |
| 2011-01-21 | 4.21 | 4.10 | 17100 |
| 2011-01-20 | 4.20 | 4.24 | 46000 |
| 2011-01-19 | 4.37 | 4.23 | 38400 |
| 2011-01-18 | 4.41 | 4.40 | 36100 |
| 2011-01-14 | 4.38 | 4.40 | 35500 |
| 2011-01-13 | 4.41 | 4.35 | 13800 |
| 2011-01-12 | 4.28 | 4.38 | 54000 |
| 2011-01-11 | 4.33 | 4.26 | 24000 |
| 2011-01-10 | 4.34 | 4.22 | 55700 |
| 2011-01-07 | 4.37 | 4.31 | 26300 |
| 2011-01-06 | 4.45 | 4.38 | 48900 |
| 2011-01-05 | 4.27 | 4.43 | 83300 |
| 2011-01-04 | 4.05 | 4.30 | 132500 |
| 2011-01-03 | 4.08 | 4.05 | 81500 |
| 2010-12-31 | 3.91 | 4.00 | 198500 |
| 2010-12-30 | 3.85 | 3.92 | 89500 |
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