| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 15.14 |
| 8 | 2017 | 18.39 |
| 9 | 2016 | 15.82 |
| 10 | 2015 | 24.98 |
| 11 | 2014 | 17.72 |
| 12 | 2013 | 13.21 |
| 13 | 2012 | 15.79 |
| 14 | 2011 | 12.97 |
| 15 | 2010 | 13.47 |
| 16 | 2009 | 11.82 |
| 17 | 2008 | 11.21 |
| 18 | 2007 | 9.05 |
| 19 | 2006 | 9.71 |
| 20 | 2005 | 8.58 |
| 21 | 2004 | 9.43 |
| 22 | 2003 | 7.47 |
| 23 | 2002 | 6.61 |
| 24 | 2001 | 6.81 |
| 25 | 2000 | 8.35 |
| 26 | 1999 | 11.83 |
| 27 | 1998 | 12.25 |
| 28 | 1997 | 13.21 |
| 29 | 1996 | 16.00 |
| 30 | 1995 | 17.58 |
| 31 | 1994 | 15.69 |
| 32 | 1993 | 18.02 |
| 33 | 1992 | 17.96 |
| 34 | 1991 | 20.59 |
| 35 | 1990 | 22.56 |
| 36 | 1989 | 16.19 |
| 37 | 1988 | 16.40 |
| 38 | 1987 | 15.95 |
| 39 | 1986 | 14.71 |
| 40 | 1985 | 14.15 |
| 41 | 1980 | 17.41 |
| 42 | 1978 | 17.69 |
| 43 | 1975 | 25.89 |
| 44 | 1965 | 39.75 |
