| 2011-04-07 | 19.10 | 19.09 | 3800 |
| 2011-04-06 | 19.15 | 19.05 | 13000 |
| 2011-04-05 | 18.88 | 19.03 | 17000 |
| 2011-04-04 | 18.76 | 18.96 | 3400 |
| 2011-04-01 | 18.87 | 18.81 | 65700 |
| 2011-03-31 | 18.76 | 18.78 | 3000 |
| 2011-03-30 | 18.66 | 18.73 | 12100 |
| 2011-03-29 | 18.36 | 18.53 | 21700 |
| 2011-03-28 | 18.32 | 18.28 | 2800 |
| 2011-03-25 | 18.24 | 18.26 | 15900 |
| 2011-03-24 | 18.14 | 18.25 | 6800 |
| 2011-03-23 | 17.81 | 18.10 | 4500 |
| 2011-03-22 | 17.91 | 17.92 | 3100 |
| 2011-03-21 | 18.00 | 17.95 | 22100 |
| 2011-03-18 | 17.74 | 17.80 | 15700 |
| 2011-03-17 | 17.80 | 17.68 | 17200 |
| 2011-03-16 | 17.76 | 17.50 | 63900 |
| 2011-03-15 | 17.36 | 17.74 | 36700 |
| 2011-03-14 | 17.83 | 18.01 | 7300 |
| 2011-03-11 | 17.65 | 17.85 | 17600 |
| 2011-03-10 | 17.84 | 17.77 | 9400 |
| 2011-03-09 | 17.92 | 18.04 | 9800 |
| 2011-03-08 | 17.83 | 17.93 | 30100 |
| 2011-03-07 | 17.97 | 17.83 | 15600 |
| 2011-03-04 | 17.94 | 17.94 | 12600 |
| 2011-03-03 | 17.86 | 18.03 | 3300 |
| 2011-03-02 | 17.56 | 17.76 | 18200 |
| 2011-03-01 | 17.85 | 17.69 | 6400 |
| 2011-02-28 | 17.84 | 17.84 | 9400 |
| 2011-02-25 | 17.70 | 17.71 | 15500 |
| 2011-02-24 | 17.58 | 17.62 | 14700 |
| 2011-02-23 | 17.81 | 17.71 | 14800 |
|
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