| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2025 | |
| 2 | 2024 | |
| 3 | 2023 | |
| 4 | 2022 | |
| 5 | 2021 | |
| 6 | 2020 | |
| 7 | 2019 | 18.13 |
| 8 | 2018 | 17.97 |
| 9 | 2017 | 17.58 |
| 10 | 2016 | 17.29 |
| 11 | 2015 | 17.08 |
| 12 | 2014 | 16.84 |
| 13 | 2013 | 17.31 |
| 14 | 2012 | 18.48 |
| 15 | 2011 | 19.91 |
| 16 | 2010 | 20.24 |
| 17 | 2009 | 20.32 |
| 18 | 2008 | 21.56 |
| 19 | 2007 | 21.99 |
| 20 | 2006 | 21.92 |
| 21 | 2005 | 21.67 |
| 22 | 2004 | 21.36 |
| 23 | 2003 | 21.28 |
| 24 | 2002 | 21.81 |
| 25 | 2001 | 21.19 |
| 26 | 2000 | 21.23 |
| 27 | 1999 | 20.37 |
| 28 | 1998 | 19.96 |
| 29 | 1997 | 19.64 |
| 30 | 1996 | 19.67 |
| 31 | 1995 | 19.87 |
| 32 | 1994 | 19.29 |
| 33 | 1993 | 19.59 |
| 34 | 1992 | 21.88 |
| 35 | 1991 | 22.45 |
| 36 | 1990 | 22.86 |
| 37 | 1989 | 22.59 |
| 38 | 1988 | 22.54 |
| 39 | 1987 | 22.14 |
| 40 | 1986 | 22.14 |
| 41 | 1985 | 22.93 |
| 42 | 1984 | 23.36 |
| 43 | 1983 | 23.53 |
| 44 | 1982 | 24.92 |
| 45 | 1981 | 26.45 |
| 46 | 1980 | 26.33 |
| 47 | 1979 | 24.84 |
| 48 | 1978 | 24.77 |
| 49 | 1977 | 25.42 |
| 50 | 1976 | 25.53 |
| 51 | 1975 | 26.71 |
| 52 | 1974 | 27.84 |
| 53 | 1973 | 26.48 |
| 54 | 1972 | 24.92 |
| 55 | 1971 | 25.49 |
| 56 | 1970 | 25.97 |
