| 序号 | 时间 | 最低 |
|---|---|---|
| 1 | 2011-12-30 | 1.29 |
| 2 | 2012-12-31 | 0.81 |
| 3 | 2013-10-17 | 0.83 |
| 4 | 2014-12-04 | 1.15 |
| 5 | 2015-12-31 | 4.64 |
| 6 | 2016-12-14 | 5.22 |
| 7 | 2017-12-29 | 9.15 |
| 8 | 2018-12-28 | 9.55 |
| 9 | 2019-12-31 | 6.98 |
| 10 | 2020-12-31 | 6.58 |
| 11 | 2021-12-31 | 5.07 |
| 12 | 2022-12-30 | 3.55 |
| 13 | 2023-12-29 | 3.68 |
| 14 | 2024-07-26 | 2.99 |