| 序号 | 时间 | 最低 |
|---|---|---|
| 1 | 1998-12-31 | 1.13 |
| 2 | 1999-12-30 | 2.41 |
| 3 | 2000-12-29 | 4.04 |
| 4 | 2001-12-31 | 2.39 |
| 5 | 2002-12-31 | 1.08 |
| 6 | 2003-12-31 | 1.37 |
| 7 | 2004-12-31 | 1.47 |
| 8 | 2005-12-30 | 0.87 |
| 9 | 2006-12-29 | 1.45 |
| 10 | 2007-12-28 | 9.19 |
| 11 | 2008-12-31 | 6.11 |
| 12 | 2009-12-31 | 7.61 |
| 13 | 2010-12-31 | 15.30 |
| 14 | 2011-12-30 | 14.70 |
| 15 | 2012-12-31 | 11.98 |
| 16 | 2013-12-31 | 7.48 |
| 17 | 2014-12-31 | 6.08 |
| 18 | 2015-12-31 | 9.13 |
| 19 | 2016-12-30 | 8.28 |
| 20 | 2017-12-29 | 10.18 |
| 21 | 2018-12-28 | 7.00 |
| 22 | 2019-12-31 | 7.17 |
| 23 | 2020-12-31 | 8.42 |
| 24 | 2021-12-31 | 11.54 |
| 25 | 2022-12-30 | 9.18 |
| 26 | 2023-12-29 | 10.23 |
| 27 | 2024-07-26 | 8.90 |