| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 22.10 |
| 8 | 2017 | 24.78 |
| 9 | 2016 | 17.96 |
| 10 | 2015 | 16.78 |
| 11 | 2014 | 22.86 |
| 12 | 2013 | 20.01 |
| 13 | 2012 | 12.67 |
| 14 | 2011 | 14.54 |
| 15 | 2010 | 17.41 |
| 16 | 2009 | 10.86 |
| 17 | 2008 | 11.47 |
| 18 | 2007 | 10.99 |
| 19 | 2006 | 9.62 |
| 20 | 2005 | 9.89 |
| 21 | 2004 | 10.14 |
| 22 | 2003 | 10.23 |
| 23 | 2002 | 9.41 |
| 24 | 2001 | 10.31 |
| 25 | 2000 | 13.97 |
| 26 | 1999 | 11.51 |
| 27 | 1998 | 9.97 |
| 28 | 1997 | 11.24 |
| 29 | 1996 | 15.45 |
| 30 | 1995 | 22.64 |
| 31 | 1994 | 17.77 |
| 32 | 1993 | 15.91 |
| 33 | 1992 | 17.34 |
| 34 | 1990 | 27.37 |
| 35 | 1989 | 24.16 |
| 36 | 1988 | 20.60 |
| 37 | 1987 | 23.07 |
| 38 | 1986 | 20.88 |
| 39 | 1985 | 21.41 |
| 40 | 1983 | 20.71 |
| 41 | 1982 | 27.10 |
| 42 | 1973 | 35.54 |
| 43 | 1972 | 35.86 |
| 44 | 1971 | 36.33 |
| 45 | 1965 | 42.67 |
| 46 | 1964 | 38.58 |
| 47 | 1963 | 44.93 |
| 48 | 1962 | 39.79 |
| 49 | 1961 | 20.14 |
| 50 | 1960 | 24.72 |
| 51 | 1959 | 35.40 |
| 52 | 1958 | 34.34 |
| 53 | 1957 | 42.26 |
| 54 | 1956 | 32.86 |
| 55 | 1955 | 32.73 |
| 56 | 1954 | 48.27 |
| 57 | 1953 | 34.73 |
| 58 | 1952 | 32.12 |
