| 2011-02-14 | 3.64 | 3.55 | 238300 |
| 2011-02-11 | 3.59 | 3.58 | 115700 |
| 2011-02-10 | 3.55 | 3.63 | 179500 |
| 2011-02-09 | 3.61 | 3.55 | 166500 |
| 2011-02-08 | 3.77 | 3.65 | 302600 |
| 2011-02-07 | 3.76 | 3.75 | 244400 |
| 2011-02-04 | 3.83 | 3.77 | 273700 |
| 2011-02-03 | 3.80 | 3.84 | 264300 |
| 2011-02-02 | 3.85 | 3.79 | 616600 |
| 2011-02-01 | 3.92 | 3.85 | 764600 |
| 2011-01-31 | 3.78 | 3.89 | 257800 |
| 2011-01-28 | 3.78 | 3.73 | 230800 |
| 2011-01-27 | 3.68 | 3.80 | 573300 |
| 2011-01-26 | 3.71 | 3.70 | 103700 |
| 2011-01-25 | 3.65 | 3.71 | 183000 |
| 2011-01-24 | 3.65 | 3.68 | 105600 |
| 2011-01-21 | 3.68 | 3.63 | 265700 |
| 2011-01-20 | 3.69 | 3.64 | 114600 |
| 2011-01-19 | 3.59 | 3.68 | 149200 |
| 2011-01-18 | 3.65 | 3.60 | 141600 |
| 2011-01-14 | 3.59 | 3.63 | 211500 |
| 2011-01-13 | 3.82 | 3.41 | 176100 |
| 2011-01-12 | 3.68 | 3.50 | 181500 |
| 2011-01-11 | 3.75 | 3.56 | 142100 |
| 2011-01-10 | 3.70 | 3.64 | 139000 |
| 2011-01-07 | 3.60 | 3.70 | 433900 |
| 2011-01-06 | 3.38 | 3.44 | 154600 |
| 2011-01-05 | 3.41 | 3.39 | 213000 |
| 2011-01-04 | 3.52 | 3.42 | 149100 |
| 2011-01-03 | 3.69 | 3.52 | 129500 |
| 2010-12-31 | 3.53 | 3.64 | 62400 |
| 2010-12-30 | 3.52 | 3.56 | 244800 |
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