| 2011-02-14 | 2.26 | 2.31 | 51400 |
| 2011-02-11 | 2.45 | 2.27 | 265800 |
| 2011-02-10 | 2.35 | 2.46 | 92600 |
| 2011-02-09 | 2.38 | 2.37 | 58200 |
| 2011-02-08 | 2.46 | 2.39 | 48500 |
| 2011-02-07 | 2.43 | 2.47 | 71600 |
| 2011-02-04 | 2.46 | 2.44 | 114300 |
| 2011-02-03 | 2.47 | 2.47 | 212900 |
| 2011-02-02 | 2.53 | 2.49 | 80300 |
| 2011-02-01 | 2.40 | 2.53 | 99000 |
| 2011-01-31 | 2.41 | 2.40 | 59700 |
| 2011-01-28 | 2.42 | 2.39 | 176900 |
| 2011-01-27 | 2.25 | 2.42 | 185500 |
| 2011-01-26 | 2.18 | 2.25 | 104800 |
| 2011-01-25 | 2.17 | 2.17 | 52500 |
| 2011-01-24 | 2.30 | 2.19 | 92300 |
| 2011-01-21 | 2.36 | 2.31 | 49100 |
| 2011-01-20 | 2.45 | 2.35 | 45900 |
| 2011-01-19 | 2.50 | 2.47 | 115800 |
| 2011-01-18 | 2.50 | 2.49 | 77300 |
| 2011-01-14 | 2.52 | 2.52 | 54900 |
| 2011-01-13 | 2.62 | 2.52 | 195600 |
| 2011-01-12 | 2.63 | 2.63 | 50200 |
| 2011-01-11 | 2.59 | 2.61 | 146500 |
| 2011-01-10 | 2.61 | 2.56 | 66600 |
| 2011-01-07 | 2.64 | 2.64 | 70300 |
| 2011-01-06 | 2.70 | 2.64 | 99200 |
| 2011-01-05 | 2.60 | 2.71 | 294700 |
| 2011-01-04 | 2.66 | 2.62 | 98500 |
| 2011-01-03 | 2.64 | 2.65 | 713200 |
| 2010-12-31 | 2.61 | 2.62 | 54300 |
| 2010-12-30 | 2.58 | 2.63 | 253300 |
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