| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2025 | |
| 2 | 2024 | |
| 3 | 2023 | |
| 4 | 2022 | |
| 5 | 2021 | |
| 6 | 2020 | |
| 7 | 2019 | 12.41 |
| 8 | 2018 | 13.14 |
| 9 | 2017 | 13.55 |
| 10 | 2016 | 13.26 |
| 11 | 2015 | 13.10 |
| 12 | 2014 | 13.16 |
| 13 | 2013 | 13.12 |
| 14 | 2012 | 13.23 |
| 15 | 2011 | 13.49 |
| 16 | 2010 | 13.51 |
| 17 | 2009 | 13.64 |
| 18 | 2008 | 13.68 |
| 19 | 2007 | 13.60 |
| 20 | 2006 | 13.70 |
| 21 | 2005 | 13.84 |
| 22 | 2004 | 13.90 |
| 23 | 2003 | 14.10 |
| 24 | 2002 | 14.85 |
| 25 | 2001 | 15.06 |
| 26 | 2000 | 15.54 |
| 27 | 1995 | 18.41 |
| 28 | 1990 | 17.69 |
| 29 | 1985 | 14.27 |
| 30 | 1980 | 18.37 |
| 31 | 1978 | 25.69 |
