| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2025 | |
| 2 | 2024 | |
| 3 | 2023 | |
| 4 | 2022 | |
| 5 | 2021 | |
| 6 | 2020 | |
| 7 | 2019 | |
| 8 | 2018 | |
| 9 | 2017 | |
| 10 | 2016 | |
| 11 | 2015 | 35.84 |
| 12 | 2014 | 34.91 |
| 13 | 2013 | 33.84 |
| 14 | 2012 | 32.86 |
| 15 | 2011 | 31.43 |
| 16 | 2010 | 33.07 |
| 17 | 2009 | 36.58 |
| 18 | 2008 | 37.00 |
| 19 | 2007 | 35.96 |
| 20 | 2006 | 33.27 |
| 21 | 2005 | 33.11 |
| 22 | 2004 | 32.85 |
| 23 | 2003 | 30.71 |
| 24 | 2002 | 29.91 |
| 25 | 2001 | 28.94 |
| 26 | 2000 | 28.42 |
| 27 | 1999 | 29.30 |
| 28 | 1998 | 30.25 |
| 29 | 1997 | 29.50 |
| 30 | 1996 | 29.61 |
| 31 | 1995 | 30.77 |
| 32 | 1994 | 30.57 |
| 33 | 1993 | 34.53 |
| 34 | 1992 | 34.75 |
| 35 | 1991 | 36.87 |
| 36 | 1990 | 27.76 |
| 37 | 1989 | 32.35 |
| 38 | 1988 | 29.88 |
| 39 | 1987 | 27.32 |
| 40 | 1986 | 26.39 |
| 41 | 1985 | 30.15 |
| 42 | 1984 | 34.05 |
| 43 | 1983 | 37.44 |
| 44 | 1982 | 38.85 |
| 45 | 1981 | 37.40 |
| 46 | 1980 | 33.60 |
| 47 | 1979 | 33.07 |
| 48 | 1978 | 37.27 |
| 49 | 1977 | 36.78 |
| 50 | 1976 | 32.88 |
| 51 | 1975 | 36.98 |
| 52 | 1974 | 28.04 |
| 53 | 1973 | 22.93 |
| 54 | 1972 | 20.54 |
| 55 | 1971 | 20.70 |
| 56 | 1970 | 20.32 |
| 57 | 1969 | 19.31 |
| 58 | 1968 | 19.06 |
| 59 | 1967 | 19.93 |
| 60 | 1966 | 19.89 |
| 61 | 1965 | 20.59 |
| 62 | 1964 | 22.09 |
| 63 | 1963 | 22.54 |
| 64 | 1962 | 19.07 |
| 65 | 1961 | 27.22 |
| 66 | 1960 | 29.28 |
