| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2025 | |
| 2 | 2024 | |
| 3 | 2023 | |
| 4 | 2022 | |
| 5 | 2021 | |
| 6 | 2020 | |
| 7 | 2019 | 44.35 |
| 8 | 2018 | 43.92 |
| 9 | 2017 | 39.92 |
| 10 | 2016 | 37.07 |
| 11 | 2015 | 35.52 |
| 12 | 2014 | 32.93 |
| 13 | 2013 | 32.51 |
| 14 | 2012 | 33.42 |
| 15 | 2011 | 33.09 |
| 16 | 2010 | 32.35 |
| 17 | 2009 | 31.80 |
| 18 | 2008 | 31.07 |
| 19 | 2007 | 31.18 |
| 20 | 2006 | 31.40 |
| 21 | 2005 | 32.68 |
| 22 | 2004 | 31.82 |
| 23 | 2003 | 32.24 |
| 24 | 2002 | 32.77 |
| 25 | 2001 | 32.29 |
| 26 | 2000 | 31.78 |
| 27 | 1999 | 30.76 |
| 28 | 1998 | 28.86 |
| 29 | 1997 | 27.43 |
| 30 | 1996 | 27.42 |
| 31 | 1995 | 27.70 |
| 32 | 1994 | 26.51 |
| 33 | 1993 | 25.34 |
| 34 | 1992 | 27.67 |
| 35 | 1991 | 25.69 |
| 36 | 1990 | 25.67 |
| 37 | 1989 | 27.31 |
| 38 | 1988 | 25.47 |
| 39 | 1987 | 23.96 |
| 40 | 1986 | 23.71 |
| 41 | 1985 | 23.54 |
| 42 | 1984 | 23.14 |
| 43 | 1983 | 23.17 |
| 44 | 1982 | 23.04 |
| 45 | 1981 | 22.63 |
| 46 | 1980 | 22.10 |
| 47 | 1979 | 22.09 |
| 48 | 1978 | 21.00 |
| 49 | 1975 | 20.00 |
| 50 | 1970 | 20.00 |
| 51 | 1965 | 19.00 |
| 52 | 1962 | 19.00 |
| 53 | 1957 | 18.00 |
| 54 | 1952 | 18.00 |
| 55 | 1949 | 18.00 |
