| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2025 | |
| 2 | 2024 | |
| 3 | 2023 | |
| 4 | 2022 | |
| 5 | 2021 | |
| 6 | 2020 | |
| 7 | 2019 | 5.60 |
| 8 | 2018 | 5.28 |
| 9 | 2017 | 5.58 |
| 10 | 2016 | 5.59 |
| 11 | 2015 | 6.21 |
| 12 | 2014 | 6.09 |
| 13 | 2013 | 5.71 |
| 14 | 2012 | 5.90 |
| 15 | 2011 | 5.72 |
| 16 | 2010 | 5.67 |
| 17 | 2009 | 6.05 |
| 18 | 2008 | 5.65 |
| 19 | 2007 | 5.77 |
| 20 | 2006 | 5.40 |
| 21 | 2005 | 5.63 |
| 22 | 2000 | 9.04 |
| 23 | 1995 | 4.96 |
| 24 | 1990 | 6.46 |
| 25 | 1985 | 5.70 |
| 26 | 1980 | 6.19 |
| 27 | 1978 | 6.32 |
| 28 | 1975 | 6.81 |
| 29 | 1970 | 6.09 |
| 30 | 1965 | 7.78 |
| 31 | 1962 | 9.22 |
| 32 | 1957 | 9.68 |
| 33 | 1952 | 10.06 |
