| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | |
| 8 | 2014 | |
| 9 | 2013 | |
| 10 | 2012 | |
| 11 | 2011 | 4.10 |
| 12 | 2010 | 4.20 |
| 13 | 2009 | 4.12 |
| 14 | 2008 | 4.05 |
| 15 | 2007 | 4.52 |
| 16 | 2006 | 4.81 |
| 17 | 2005 | 5.30 |
| 18 | 2004 | 5.48 |
| 19 | 2003 | 5.71 |
| 20 | 2002 | 6.01 |
| 21 | 2001 | 6.55 |
| 22 | 2000 | 6.69 |
| 23 | 1999 | 7.21 |
| 24 | 1998 | 7.70 |
| 25 | 1997 | 8.04 |
| 26 | 1996 | 8.36 |
| 27 | 1995 | 8.99 |
| 28 | 1994 | 9.49 |
| 29 | 1993 | 9.78 |
| 30 | 1992 | 9.72 |
| 31 | 1991 | 10.67 |
| 32 | 1990 | 11.92 |
| 33 | 1989 | 13.16 |
| 34 | 1988 | 14.27 |
| 35 | 1987 | 15.20 |
| 36 | 1986 | 16.18 |
| 37 | 1985 | 18.32 |
| 38 | 1984 | 18.49 |
| 39 | 1983 | 18.72 |
| 40 | 1982 | 18.53 |
| 41 | 1981 | 18.76 |
| 42 | 1980 | 19.27 |
| 43 | 1979 | 19.97 |
| 44 | 1977 | 21.12 |
| 45 | 1976 | 21.59 |
| 46 | 1975 | 22.05 |
| 47 | 1974 | 23.17 |
| 48 | 1973 | 24.34 |
| 49 | 1972 | 25.66 |
| 50 | 1971 | 28.43 |
| 51 | 1970 | 29.46 |
| 52 | 1969 | 30.45 |
