| 序号 | 时间 | 最低 |
|---|---|---|
| 1 | 2008-12-31 | 0.20 |
| 2 | 2009-12-31 | 0.87 |
| 3 | 2010-12-31 | 2.51 |
| 4 | 2011-12-30 | 3.20 |
| 5 | 2012-12-31 | 3.16 |
| 6 | 2013-12-31 | 5.27 |
| 7 | 2014-12-31 | 6.77 |
| 8 | 2015-12-31 | 8.94 |
| 9 | 2016-12-30 | 7.88 |
| 10 | 2017-12-29 | 11.63 |
| 11 | 2018-12-28 | 8.04 |
| 12 | 2019-12-31 | 7.59 |
| 13 | 2020-12-31 | 9.31 |
| 14 | 2021-12-31 | 12.45 |
| 15 | 2022-12-30 | 10.57 |
| 16 | 2023-12-29 | 22.40 |
| 17 | 2024-07-26 | 20.32 |