| 序号 | 时间 | 最低 |
|---|---|---|
| 1 | 2007-12-27 | 4.82 |
| 2 | 2008-12-31 | 0.86 |
| 3 | 2009-12-31 | 2.36 |
| 4 | 2010-12-31 | 3.94 |
| 5 | 2011-12-30 | 4.48 |
| 6 | 2012-12-31 | 3.30 |
| 7 | 2013-12-06 | 2.90 |
| 8 | 2014-11-05 | 4.36 |
| 9 | 2015-12-31 | 14.05 |
| 10 | 2016-12-30 | 16.65 |
| 11 | 2017-12-29 | 20.16 |
| 12 | 2018-12-28 | 20.19 |
| 13 | 2019-12-31 | 20.02 |
| 14 | 2020-12-31 | 24.59 |
| 15 | 2021-12-31 | 22.74 |
| 16 | 2022-12-30 | 33.98 |
| 17 | 2023-12-29 | 21.28 |
| 18 | 2024-07-26 | 16.65 |