| 序号 | 时间 | 最低 |
|---|---|---|
| 1 | 2007-12-28 | 7.09 |
| 2 | 2008-12-31 | 3.40 |
| 3 | 2009-12-31 | 5.27 |
| 4 | 2010-12-31 | 10.34 |
| 5 | 2011-12-30 | 10.22 |
| 6 | 2012-12-31 | 8.12 |
| 7 | 2013-12-31 | 12.74 |
| 8 | 2014-12-31 | 15.75 |
| 9 | 2015-12-31 | 21.95 |
| 10 | 2016-11-15 | 22.32 |
| 11 | 2017-12-29 | 25.48 |
| 12 | 2018-12-28 | 19.05 |
| 13 | 2019-12-31 | 20.19 |
| 14 | 2020-12-31 | 22.14 |
| 15 | 2021-12-31 | 38.02 |
| 16 | 2022-12-30 | 24.95 |
| 17 | 2023-12-29 | 27.94 |
| 18 | 2024-07-26 | 20.86 |