| 2011-02-14 | 27.82 | 28.01 | 389400 |
| 2011-02-11 | 26.83 | 27.81 | 552400 |
| 2011-02-10 | 26.48 | 27.18 | 719300 |
| 2011-02-09 | 26.49 | 26.79 | 438400 |
| 2011-02-08 | 25.94 | 26.71 | 703100 |
| 2011-02-07 | 25.09 | 25.99 | 613300 |
| 2011-02-04 | 25.71 | 24.98 | 710500 |
| 2011-02-03 | 26.27 | 25.62 | 722100 |
| 2011-02-02 | 25.67 | 26.39 | 854700 |
| 2011-02-01 | 25.57 | 25.75 | 497600 |
| 2011-01-31 | 25.16 | 25.16 | 558700 |
| 2011-01-28 | 26.09 | 24.86 | 1142300 |
| 2011-01-27 | 25.61 | 26.97 | 2086900 |
| 2011-01-26 | 22.29 | 25.11 | 2431300 |
| 2011-01-25 | 20.67 | 21.11 | 656300 |
| 2011-01-24 | 20.63 | 20.56 | 474600 |
| 2011-01-21 | 20.65 | 20.63 | 455700 |
| 2011-01-20 | 20.70 | 20.25 | 470200 |
| 2011-01-19 | 21.72 | 20.82 | 391700 |
| 2011-01-18 | 21.93 | 21.67 | 406500 |
| 2011-01-14 | 21.28 | 21.97 | 672500 |
| 2011-01-13 | 21.97 | 21.34 | 555700 |
| 2011-01-12 | 21.82 | 21.99 | 616400 |
| 2011-01-11 | 23.53 | 21.37 | 1370900 |
| 2011-01-10 | 22.59 | 23.66 | 398900 |
| 2011-01-07 | 22.70 | 22.75 | 626800 |
| 2011-01-06 | 22.93 | 22.67 | 355700 |
| 2011-01-05 | 22.42 | 22.92 | 293700 |
| 2011-01-04 | 22.85 | 22.51 | 481100 |
| 2011-01-03 | 21.25 | 22.60 | 546500 |
| 2010-12-31 | 21.77 | 21.01 | 275600 |
| 2010-12-30 | 21.75 | 21.76 | 194800 |
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