| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2018 | |
| 4 | 2017 | |
| 5 | 2016 | |
| 6 | 2015 | |
| 7 | 2014 | |
| 8 | 2013 | |
| 9 | 2012 | |
| 10 | 2011 | |
| 11 | 2010 | 40.70 |
| 12 | 2009 | 42.29 |
| 13 | 2008 | 40.52 |
| 14 | 2007 | 38.38 |
| 15 | 2006 | 37.69 |
| 16 | 2005 | 36.43 |
| 17 | 2004 | 28.75 |
| 18 | 1999 | 36.79 |
| 19 | 1998 | 41.36 |
| 20 | 1997 | 32.29 |
| 21 | 1996 | 40.88 |
| 22 | 1995 | 39.40 |
| 23 | 1994 | 40.69 |
| 24 | 1993 | 35.93 |
| 25 | 1992 | 26.29 |
| 26 | 1991 | 37.09 |
| 27 | 1990 | 31.43 |
| 28 | 1989 | 36.04 |
| 29 | 1987 | 37.20 |
| 30 | 1986 | 32.40 |
| 31 | 1985 | 32.63 |
| 32 | 1984 | 32.54 |
| 33 | 1983 | 32.15 |
| 34 | 1980 | 39.46 |
| 35 | 1979 | 40.04 |
| 36 | 1978 | 33.62 |
| 37 | 1977 | 34.11 |
| 38 | 1976 | 36.13 |
| 39 | 1975 | 39.19 |
| 40 | 1974 | 44.63 |
| 41 | 1973 | 37.04 |
