| 2011-02-14 | 4.87 | 5.00 | 11800 |
| 2011-02-11 | 4.94 | 4.87 | 7900 |
| 2011-02-10 | 4.90 | 5.00 | 15300 |
| 2011-02-09 | 4.95 | 4.98 | 2600 |
| 2011-02-08 | 4.77 | 4.97 | 26200 |
| 2011-02-07 | 4.86 | 4.91 | 10900 |
| 2011-02-04 | 5.01 | 4.84 | 11300 |
| 2011-02-03 | 4.90 | 4.83 | 3300 |
| 2011-02-02 | 4.84 | 4.89 | 900 |
| 2011-02-01 | 4.92 | 4.93 | 9200 |
| 2011-01-31 | 4.84 | 4.94 | 2400 |
| 2011-01-28 | 4.95 | 4.91 | 16500 |
| 2011-01-27 | 4.95 | 4.98 | 1900 |
| 2011-01-26 | 4.92 | 4.96 | 8600 |
| 2011-01-25 | 5.00 | 4.89 | 1100 |
| 2011-01-24 | 4.83 | 4.87 | 2000 |
| 2011-01-21 | 5.00 | 4.80 | 1300 |
| 2011-01-20 | 4.76 | 4.91 | 500 |
| 2011-01-19 | 4.76 | 4.95 | 3100 |
| 2011-01-18 | 5.00 | 4.79 | 35700 |
| 2011-01-14 | 5.04 | 5.07 | 6900 |
| 2011-01-13 | 5.20 | 5.10 | 13500 |
| 2011-01-12 | 5.12 | 5.01 | 12300 |
| 2011-01-11 | 5.15 | 5.19 | 5500 |
| 2011-01-10 | 4.98 | 5.11 | 10700 |
| 2011-01-07 | 5.11 | 5.02 | 11200 |
| 2011-01-06 | 5.16 | 5.08 | 7200 |
| 2011-01-05 | 5.45 | 5.04 | 12300 |
| 2011-01-04 | 5.10 | 5.48 | 18800 |
| 2011-01-03 | 4.83 | 5.10 | 5200 |
| 2010-12-31 | 4.75 | 4.83 | 30600 |
| 2010-12-30 | 4.75 | 4.80 | 15600 |
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