| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 6.24 |
| 8 | 2017 | 9.59 |
| 9 | 2016 | 3.83 |
| 10 | 2015 | 6.37 |
| 11 | 2014 | 6.31 |
| 12 | 2013 | 12.25 |
| 13 | 2012 | 9.55 |
| 14 | 2011 | 3.93 |
| 15 | 2010 | 7.79 |
| 16 | 2009 | 7.41 |
| 17 | 2008 | 4.94 |
| 18 | 2007 | 5.01 |
| 19 | 2006 | 1.89 |
| 20 | 2005 | 1.78 |
| 21 | 2000 | 5.46 |
| 22 | 1995 | 5.77 |
