| 评估日期 | 买入价 | 卖出价 |
| 2011.05.06 | 8.913824 | 8.739043 |
| 2011.05.05 | 9.038137 | 8.860919 |
| 2011.05.04 | 8.934159 | 8.758979 |
| 2011.05.03 | 8.836813 | 8.663543 |
| 2011.04.29 | 8.967573 | 8.791738 |
| 2011.04.28 | 9.004841 | 8.828275 |
| 2011.04.27 | 9.092883 | 8.914592 |
| 2011.04.26 | 9.193853 | 9.013582 |
| 2011.04.25 | 9.219316 | 9.038545 |
| 2011.04.22 | 9.177863 | 8.997905 |