| 序号 |
时间(年) |
数据(单位：%) |
| 1 |
2021 |
|
| 2 |
2020 |
|
| 3 |
2019 |
|
| 4 |
2018 |
|
| 5 |
2017 |
|
| 6 |
2016 |
|
| 7 |
2015 |
20.22 |
| 8 |
2014 |
28.01 |
| 9 |
2013 |
23.50 |
| 10 |
2012 |
30.35 |
| 11 |
2011 |
2.97 |
| 12 |
2010 |
27.43 |
| 13 |
2009 |
3.54 |
| 14 |
2008 |
2.91 |
| 15 |
2007 |
4.11 |
| 16 |
2006 |
30.81 |
| 17 |
2005 |
30.86 |
| 18 |
2004 |
17.77 |
| 19 |
2003 |
11.59 |
| 20 |
2002 |
14.70 |
| 21 |
2001 |
18.35 |
| 22 |
2000 |
23.16 |
| 23 |
1999 |
15.75 |
| 24 |
1998 |
12.12 |
| 25 |
1997 |
13.84 |
| 26 |
1996 |
15.69 |
| 27 |
1995 |
2.44 |
| 28 |
1990 |
1.47 |
| 29 |
1987 |
1.37 |
| 30 |
1986 |
1.65 |
| 31 |
1982 |
3.64 |
| 32 |
1980 |
11.65 |
| 33 |
1979 |
10.79 |
| 34 |
1978 |
7.17 |
| 35 |
1977 |
8.99 |
| 36 |
1976 |
8.95 |
| 37 |
1975 |
10.06 |
| 38 |
1974 |
9.70 |
| 39 |
1973 |
6.39 |
| 40 |
1972 |
5.96 |
| 41 |
1971 |
6.14 |
| 42 |
1970 |
11.83 |
| 43 |
1969 |
5.76 |
| 44 |
1968 |
6.18 |
| 45 |
1967 |
5.64 |
| 46 |
1966 |
5.39 |
| 47 |
1965 |
4.98 |
| 48 |
1964 |
6.44 |
| 49 |
1963 |
6.62 |
| 50 |
1962 |
6.95 |
