| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | 21.36 |
| 8 | 2014 | 21.63 |
| 9 | 2013 | 21.33 |
| 10 | 2012 | 21.26 |
| 11 | 2011 | 21.80 |
| 12 | 2010 | 21.97 |
| 13 | 2009 | 22.46 |
| 14 | 2008 | 22.87 |
| 15 | 2007 | 23.13 |
| 16 | 2006 | 22.18 |
| 17 | 2005 | 20.65 |
| 18 | 2004 | 20.32 |
| 19 | 2003 | 19.84 |
| 20 | 2002 | 20.69 |
| 21 | 2001 | 22.09 |
| 22 | 2000 | 22.83 |
| 23 | 1999 | 22.71 |
| 24 | 1998 | 24.51 |
| 25 | 1997 | 23.88 |
| 26 | 1996 | 22.38 |
| 27 | 1995 | 23.56 |
| 28 | 1994 | 23.64 |
| 29 | 1993 | 26.28 |
| 30 | 1992 | 26.64 |
| 31 | 1991 | 26.05 |
| 32 | 1990 | 25.25 |
| 33 | 1989 | 25.87 |
| 34 | 1987 | 27.56 |
| 35 | 1986 | 26.23 |
| 36 | 1985 | 24.93 |
| 37 | 1984 | 24.73 |
| 38 | 1983 | 25.67 |
| 39 | 1982 | 27.89 |
| 40 | 1981 | 27.57 |
| 41 | 1980 | 27.66 |
| 42 | 1979 | 27.86 |
| 43 | 1978 | 28.60 |
| 44 | 1977 | 27.17 |
| 45 | 1976 | 26.10 |
| 46 | 1975 | 25.05 |
