| 序号 | 时间 | 最低 |
|---|---|---|
| 1 | 2007-12-28 | 25.29 |
| 2 | 2008-12-31 | 6.04 |
| 3 | 2009-12-31 | 6.42 |
| 4 | 2010-12-31 | 6.78 |
| 5 | 2011-12-30 | 6.69 |
| 6 | 2012-12-31 | 6.09 |
| 7 | 2013-12-31 | 4.86 |
| 8 | 2014-12-31 | 5.40 |
| 9 | 2015-12-31 | 6.40 |
| 10 | 2016-12-30 | 5.42 |
| 11 | 2017-12-29 | 5.87 |
| 12 | 2018-12-28 | 5.81 |
| 13 | 2019-12-31 | 4.39 |
| 14 | 2020-12-31 | 3.09 |
| 15 | 2021-12-31 | 3.10 |
| 16 | 2022-12-30 | 4.13 |
| 17 | 2023-12-29 | 4.52 |
| 18 | 2024-07-26 | 6.63 |