| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2025 | |
| 2 | 2024 | |
| 3 | 2023 | |
| 4 | 2022 | |
| 5 | 2021 | |
| 6 | 2020 | |
| 7 | 2019 | 10.22 |
| 8 | 2018 | 13.39 |
| 9 | 2017 | 15.53 |
| 10 | 2016 | 17.81 |
| 11 | 2015 | 14.81 |
| 12 | 2014 | 20.24 |
| 13 | 2013 | 21.19 |
| 14 | 2012 | 19.71 |
| 15 | 2011 | 18.23 |
| 16 | 2010 | 22.52 |
| 17 | 2009 | 19.21 |
| 18 | 2008 | 18.08 |
| 19 | 2007 | 20.29 |
| 20 | 2006 | 14.93 |
| 21 | 2005 | 13.60 |
| 22 | 2004 | 14.53 |
| 23 | 2003 | 9.46 |
| 24 | 2002 | 7.74 |
| 25 | 2001 | 7.72 |
| 26 | 2000 | 18.91 |
| 27 | 1999 | 8.20 |
| 28 | 1998 | 10.48 |
| 29 | 1997 | 11.57 |
| 30 | 1996 | 9.52 |
| 31 | 1995 | 9.82 |
| 32 | 1994 | 13.51 |
| 33 | 1993 | 11.99 |
| 34 | 1992 | 12.37 |
| 35 | 1991 | 19.23 |
| 36 | 1990 | 20.09 |
| 37 | 1989 | 22.58 |
| 38 | 1988 | 23.04 |
| 39 | 1987 | 15.40 |
| 40 | 1986 | 13.64 |
| 41 | 1985 | 12.17 |
| 42 | 1984 | 14.10 |
| 43 | 1983 | 14.29 |
| 44 | 1982 | 17.60 |
| 45 | 1981 | 18.03 |
| 46 | 1980 | 19.19 |
| 47 | 1979 | 13.15 |
| 48 | 1978 | 16.03 |
| 49 | 1975 | 20.50 |
| 50 | 1970 | 33.26 |
| 51 | 1965 | 37.48 |
| 52 | 1962 | 35.89 |
| 53 | 1957 | 31.19 |
| 54 | 1952 | 33.65 |
| 55 | 1949 | 24.95 |
