| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | 21.81 |
| 8 | 2014 | 22.02 |
| 9 | 2013 | 19.04 |
| 10 | 2012 | 19.93 |
| 11 | 2011 | 19.77 |
| 12 | 2010 | 19.08 |
| 13 | 2009 | 20.82 |
| 14 | 2008 | 22.00 |
| 15 | 2007 | 22.33 |
| 16 | 2006 | 22.10 |
| 17 | 2005 | 23.51 |
| 18 | 2004 | 22.38 |
| 19 | 2003 | 21.41 |
| 20 | 2002 | 21.82 |
| 21 | 2001 | 22.18 |
| 22 | 2000 | 22.06 |
| 23 | 1999 | 22.04 |
| 24 | 1998 | 22.97 |
| 25 | 1997 | 22.01 |
| 26 | 1996 | 22.30 |
| 27 | 1995 | 24.25 |
| 28 | 1994 | 24.06 |
| 29 | 1993 | 22.08 |
| 30 | 1992 | 20.12 |
| 31 | 1991 | 21.26 |
| 32 | 1990 | 16.67 |
| 33 | 1987 | 23.90 |
| 34 | 1986 | 23.96 |
| 35 | 1985 | 25.90 |
| 36 | 1983 | 17.25 |
| 37 | 1982 | 17.02 |
| 38 | 1981 | 16.89 |
| 39 | 1980 | 16.86 |
| 40 | 1979 | 15.70 |
| 41 | 1978 | 15.68 |
| 42 | 1977 | 15.49 |
| 43 | 1976 | 15.39 |
| 44 | 1975 | 15.19 |
| 45 | 1974 | 15.08 |
| 46 | 1973 | 14.99 |
| 47 | 1972 | 14.88 |
| 48 | 1971 | 14.70 |
| 49 | 1970 | 14.49 |
