| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 23.46 |
| 8 | 2016 | 24.62 |
| 9 | 2015 | 25.03 |
| 10 | 2014 | 23.81 |
| 11 | 2013 | 23.77 |
| 12 | 2012 | 22.48 |
| 13 | 2011 | 22.06 |
| 14 | 2010 | 22.39 |
| 15 | 2009 | 21.20 |
| 16 | 2008 | 21.64 |
| 17 | 2007 | 21.57 |
| 18 | 2006 | 22.73 |
| 19 | 2005 | 24.68 |
| 20 | 2004 | 24.86 |
| 21 | 2003 | 25.86 |
| 22 | 2002 | 27.64 |
| 23 | 2001 | 30.42 |
| 24 | 2000 | 32.50 |
| 25 | 1999 | 32.07 |
| 26 | 1998 | 32.35 |
| 27 | 1997 | 33.65 |
| 28 | 1996 | 34.14 |
| 29 | 1995 | 34.14 |
| 30 | 1994 | 34.58 |
| 31 | 1993 | 36.49 |
| 32 | 1992 | 36.07 |
| 33 | 1991 | 34.48 |
| 34 | 1990 | 34.09 |
| 35 | 1989 | 33.31 |
| 36 | 1988 | 31.45 |
| 37 | 1987 | 29.38 |
| 38 | 1986 | 29.61 |
| 39 | 1985 | 28.78 |
| 40 | 1984 | 28.45 |
| 41 | 1983 | 21.46 |
| 42 | 1982 | 23.41 |
| 43 | 1981 | 26.46 |
| 44 | 1980 | 22.27 |
| 45 | 1979 | 21.74 |
| 46 | 1978 | 20.25 |
| 47 | 1977 | 19.81 |
| 48 | 1976 | 20.81 |
| 49 | 1975 | 20.15 |
| 50 | 1974 | 19.45 |
| 51 | 1973 | 20.07 |
| 52 | 1972 | 21.12 |
| 53 | 1971 | 19.77 |
| 54 | 1970 | 20.35 |
