| 序号 |
时间(年) |
数据(单位：%) |
| 1 |
2022 |
|
| 2 |
2021 |
|
| 3 |
2020 |
|
| 4 |
2019 |
|
| 5 |
2018 |
|
| 6 |
2017 |
|
| 7 |
2016 |
1.78 |
| 8 |
2015 |
1.65 |
| 9 |
2014 |
1.77 |
| 10 |
2013 |
1.75 |
| 11 |
2012 |
1.77 |
| 12 |
2011 |
1.77 |
| 13 |
2010 |
1.85 |
| 14 |
2009 |
1.83 |
| 15 |
2008 |
1.73 |
| 16 |
2007 |
1.95 |
| 17 |
2006 |
2.02 |
| 18 |
2005 |
2.05 |
| 19 |
2004 |
2.33 |
| 20 |
2003 |
2.49 |
| 21 |
2002 |
2.53 |
| 22 |
2001 |
2.46 |
| 23 |
2000 |
2.32 |
| 24 |
1999 |
2.75 |
| 25 |
1998 |
2.54 |
| 26 |
1997 |
3.07 |
| 27 |
1996 |
3.88 |
| 28 |
1995 |
3.62 |
| 29 |
1994 |
3.78 |
| 30 |
1993 |
3.98 |
| 31 |
1992 |
3.94 |
| 32 |
1991 |
4.08 |
| 33 |
1990 |
4.09 |
| 34 |
1989 |
15.38 |
| 35 |
1988 |
15.06 |
| 36 |
1987 |
15.94 |
| 37 |
1986 |
15.80 |
| 38 |
1985 |
16.49 |
| 39 |
1984 |
16.93 |
| 40 |
1983 |
18.41 |
| 41 |
1982 |
18.40 |
| 42 |
1981 |
20.14 |
| 43 |
1980 |
21.17 |
| 44 |
1979 |
22.04 |
| 45 |
1978 |
21.64 |
| 46 |
1977 |
22.51 |
| 47 |
1976 |
21.54 |
| 48 |
1975 |
25.97 |
| 49 |
1974 |
24.86 |
| 50 |
1973 |
29.45 |
| 51 |
1972 |
30.55 |
