| 评估日期 | 买入价 | 卖出价 |
| 2012.02.07 | 7.329316 | 7.185604 |
| 2012.02.06 | 7.339802 | 7.195884 |
| 2012.02.03 | 7.233877 | 7.092037 |
| 2012.02.02 | 7.253856 | 7.111624 |
| 2012.02.01 | 7.274928 | 7.132283 |
| 2012.01.31 | 7.370028 | 7.225518 |
| 2012.01.30 | 7.241392 | 7.099404 |
| 2012.01.20 | 7.194438 | 7.053371 |
| 2012.01.19 | 7.271982 | 7.129394 |
| 2012.01.18 | 6.99242 | 6.855313 |