| 2011-02-14 | 31.86 | 31.74 | 695100 |
| 2011-02-11 | 31.75 | 31.89 | 1042000 |
| 2011-02-10 | 31.55 | 31.80 | 1136800 |
| 2011-02-09 | 31.75 | 31.68 | 1623800 |
| 2011-02-08 | 31.10 | 31.87 | 2171600 |
| 2011-02-07 | 30.95 | 30.96 | 1576700 |
| 2011-02-04 | 30.83 | 30.96 | 954800 |
| 2011-02-03 | 30.94 | 30.87 | 943900 |
| 2011-02-02 | 31.04 | 31.03 | 1423700 |
| 2011-02-01 | 30.58 | 31.07 | 1391500 |
| 2011-01-31 | 30.30 | 30.43 | 1019600 |
| 2011-01-28 | 30.87 | 30.28 | 986200 |
| 2011-01-27 | 30.81 | 30.81 | 905500 |
| 2011-01-26 | 30.67 | 30.79 | 1034400 |
| 2011-01-25 | 30.54 | 30.68 | 1166700 |
| 2011-01-24 | 30.06 | 30.61 | 1160100 |
| 2011-01-21 | 30.03 | 30.01 | 992300 |
| 2011-01-20 | 29.74 | 29.92 | 1464000 |
| 2011-01-19 | 30.22 | 29.83 | 1161600 |
| 2011-01-18 | 30.14 | 30.20 | 1873200 |
| 2011-01-14 | 29.67 | 30.12 | 1670500 |
| 2011-01-13 | 29.94 | 29.64 | 2323900 |
| 2011-01-12 | 28.70 | 29.53 | 2224100 |
| 2011-01-11 | 28.60 | 28.68 | 896000 |
| 2011-01-10 | 28.33 | 28.53 | 1201400 |
| 2011-01-07 | 28.40 | 28.49 | 1271200 |
| 2011-01-06 | 28.35 | 28.38 | 1125200 |
| 2011-01-05 | 27.91 | 28.44 | 1391000 |
| 2011-01-04 | 28.12 | 27.95 | 1756500 |
| 2011-01-03 | 27.55 | 28.13 | 2414500 |
| 2010-12-31 | 27.60 | 27.39 | 1641500 |
| 2010-12-30 | 27.70 | 27.67 | 565700 |
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