| 2011-02-14 | 4.55 | 4.50 | 628500 |
| 2011-02-11 | 4.54 | 4.49 | 557600 |
| 2011-02-10 | 4.71 | 4.61 | 428500 |
| 2011-02-09 | 4.82 | 4.73 | 313000 |
| 2011-02-08 | 4.85 | 4.90 | 366500 |
| 2011-02-07 | 4.87 | 4.92 | 425100 |
| 2011-02-04 | 4.76 | 4.85 | 427700 |
| 2011-02-03 | 4.83 | 4.74 | 338500 |
| 2011-02-02 | 4.65 | 4.81 | 532300 |
| 2011-02-01 | 4.73 | 4.60 | 514800 |
| 2011-01-31 | 4.41 | 4.67 | 732400 |
| 2011-01-28 | 4.73 | 4.40 | 899300 |
| 2011-01-27 | 4.76 | 4.72 | 603600 |
| 2011-01-26 | 4.89 | 4.76 | 560500 |
| 2011-01-25 | 4.90 | 4.88 | 722200 |
| 2011-01-24 | 4.85 | 4.95 | 971500 |
| 2011-01-21 | 4.90 | 4.85 | 427200 |
| 2011-01-20 | 5.00 | 4.90 | 1063500 |
| 2011-01-19 | 4.79 | 4.92 | 1408400 |
| 2011-01-18 | 5.40 | 4.83 | 3468100 |
| 2011-01-14 | 5.61 | 5.35 | 2064500 |
| 2011-01-13 | 5.68 | 5.73 | 4004400 |
| 2011-01-12 | 4.54 | 5.76 | 11495200 |
| 2011-01-11 | 4.21 | 4.03 | 2346100 |
| 2011-01-10 | 4.05 | 4.16 | 1128300 |
| 2011-01-07 | 3.91 | 4.03 | 850600 |
| 2011-01-06 | 3.93 | 3.98 | 1100100 |
| 2011-01-05 | 4.02 | 3.88 | 1122600 |
| 2011-01-04 | 3.77 | 4.04 | 2174100 |
| 2011-01-03 | 4.30 | 3.75 | 3189600 |
| 2010-12-31 | 4.50 | 4.26 | 1223800 |
| 2010-12-30 | 4.95 | 4.38 | 2895600 |
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