| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | |
| 8 | 2017 | |
| 9 | 2016 | |
| 10 | 2015 | |
| 11 | 2014 | 7.37 |
| 12 | 2013 | 6.86 |
| 13 | 2012 | 7.30 |
| 14 | 2011 | 6.99 |
| 15 | 2010 | 7.35 |
| 16 | 2009 | 7.48 |
| 17 | 2008 | 7.91 |
| 18 | 2007 | 7.88 |
| 19 | 2006 | 7.57 |
| 20 | 2005 | 7.87 |
| 21 | 2004 | 7.27 |
| 22 | 2003 | 7.48 |
| 23 | 2002 | 7.98 |
| 24 | 2001 | 8.48 |
| 25 | 2000 | 9.43 |
| 26 | 1999 | 10.55 |
| 27 | 1998 | 11.68 |
| 28 | 1997 | 12.02 |
| 29 | 1996 | 12.40 |
| 30 | 1995 | 13.23 |
| 31 | 1994 | 15.15 |
| 32 | 1993 | 15.90 |
| 33 | 1992 | 16.25 |
| 34 | 1991 | 15.89 |
| 35 | 1990 | 18.11 |
| 36 | 1985 | 15.04 |
| 37 | 1980 | 13.49 |
| 38 | 1978 | 16.84 |
| 39 | 1975 | 21.98 |
| 40 | 1970 | 34.80 |
| 41 | 1965 | 40.38 |
| 42 | 1962 | 35.46 |
| 43 | 1957 | 36.59 |
