| 评估日期 | 买入价 | 卖出价 |
| 2011.05.17 | 8.985753 | 8.809562 |
| 2011.05.16 | 8.927507 | 8.752458 |
| 2011.05.13 | 9.02304 | 8.846118 |
| 2011.05.12 | 9.03438 | 8.857235 |
| 2011.05.11 | 9.000947 | 8.824458 |
| 2011.05.10 | 8.937909 | 8.762656 |
| 2011.05.09 | 9.045174 | 8.867818 |
| 2011.05.06 | 8.913824 | 8.739043 |
| 2011.05.05 | 9.038137 | 8.860919 |
| 2011.05.04 | 8.934159 | 8.758979 |