| 2011-02-14 | 3.34 | 3.37 | 3411200 |
| 2011-02-11 | 3.11 | 3.30 | 3695000 |
| 2011-02-10 | 3.00 | 3.07 | 5676300 |
| 2011-02-09 | 2.73 | 3.09 | 8452300 |
| 2011-02-08 | 2.59 | 2.73 | 1871200 |
| 2011-02-07 | 2.55 | 2.56 | 2205700 |
| 2011-02-04 | 2.38 | 2.57 | 6509200 |
| 2011-02-03 | 2.01 | 1.99 | 518600 |
| 2011-02-02 | 1.99 | 1.96 | 624700 |
| 2011-02-01 | 1.86 | 1.99 | 486700 |
| 2011-01-31 | 1.86 | 1.86 | 165900 |
| 2011-01-28 | 1.90 | 1.86 | 325600 |
| 2011-01-27 | 1.94 | 1.90 | 402700 |
| 2011-01-26 | 1.96 | 1.95 | 375400 |
| 2011-01-25 | 1.97 | 1.97 | 193800 |
| 2011-01-24 | 1.97 | 1.97 | 216500 |
| 2011-01-21 | 1.87 | 1.93 | 681900 |
| 2011-01-20 | 2.04 | 1.85 | 2117300 |
| 2011-01-19 | 2.08 | 2.04 | 983600 |
| 2011-01-18 | 2.04 | 2.07 | 274700 |
| 2011-01-14 | 2.05 | 2.04 | 520000 |
| 2011-01-13 | 2.09 | 2.05 | 435300 |
| 2011-01-12 | 2.04 | 2.07 | 493200 |
| 2011-01-11 | 2.00 | 2.03 | 407900 |
| 2011-01-10 | 1.99 | 2.00 | 662100 |
| 2011-01-07 | 2.00 | 1.99 | 333800 |
| 2011-01-06 | 2.03 | 1.99 | 535500 |
| 2011-01-05 | 1.88 | 1.98 | 528300 |
| 2011-01-04 | 1.85 | 1.88 | 526400 |
| 2011-01-03 | 1.78 | 1.84 | 574100 |
| 2010-12-31 | 1.86 | 1.76 | 620000 |
| 2010-12-30 | 1.90 | 1.86 | 556000 |
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