| 评估日期 | 买入价 | 卖出价 |
| 2011.02.01 | 9.117847 | 8.939066 |
| 2011.01.31 | 9.085019 | 8.906881 |
| 2011.01.28 | 8.88093 | 8.706794 |
| 2011.01.27 | 8.75013 | 8.578558 |
| 2011.01.26 | 8.842553 | 8.66917 |
| 2011.01.25 | 8.909365 | 8.734672 |
| 2011.01.24 | 8.875562 | 8.701531 |
| 2011.01.21 | 9.084831 | 8.906698 |
| 2011.01.20 | 8.95357 | 8.77801 |
| 2011.01.19 | 8.953692 | 8.77813 |