| 序号 |
时间(年) |
数据(单位：%) |
| 1 |
2020 |
|
| 2 |
2019 |
|
| 3 |
2018 |
|
| 4 |
2017 |
|
| 5 |
2016 |
|
| 6 |
2015 |
|
| 7 |
2014 |
37.29 |
| 8 |
2013 |
19.50 |
| 9 |
2012 |
25.14 |
| 10 |
2011 |
33.99 |
| 11 |
2010 |
31.92 |
| 12 |
2009 |
24.74 |
| 13 |
2008 |
39.18 |
| 14 |
2007 |
36.83 |
| 15 |
2006 |
39.34 |
| 16 |
2005 |
19.47 |
| 17 |
2004 |
27.28 |
| 18 |
2003 |
23.24 |
| 19 |
2002 |
39.21 |
| 20 |
2001 |
56.53 |
| 21 |
2000 |
54.24 |
| 22 |
1999 |
25.42 |
| 23 |
1998 |
17.49 |
| 24 |
1997 |
44.09 |
| 25 |
1996 |
39.20 |
| 26 |
1995 |
43.17 |
| 27 |
1994 |
52.57 |
| 28 |
1993 |
33.50 |
| 29 |
1992 |
52.28 |
| 30 |
1991 |
39.08 |
| 31 |
1990 |
13.30 |
| 32 |
1989 |
54.67 |
| 33 |
1988 |
46.28 |
| 34 |
1987 |
53.33 |
| 35 |
1986 |
47.94 |
| 36 |
1985 |
46.17 |
| 37 |
1984 |
53.62 |
| 38 |
1983 |
40.21 |
| 39 |
1982 |
23.35 |
| 40 |
1981 |
51.32 |
| 41 |
1980 |
33.80 |
| 42 |
1979 |
15.77 |
| 43 |
1978 |
68.53 |
| 44 |
1977 |
60.30 |
| 45 |
1976 |
37.07 |
| 46 |
1975 |
37.92 |
| 47 |
1974 |
26.66 |
| 48 |
1973 |
18.85 |
| 49 |
1972 |
40.66 |
| 50 |
1971 |
11.13 |
| 51 |
1970 |
9.95 |
| 52 |
1969 |
10.45 |
| 53 |
1968 |
10.19 |
| 54 |
1967 |
1.23 |
| 55 |
1966 |
4.93 |
| 56 |
1965 |
1.93 |
| 57 |
1964 |
37.12 |
| 58 |
1963 |
7.29 |
| 59 |
1962 |
15.17 |
| 60 |
1961 |
8.82 |
