| 序号 |
时间(年) |
数据(单位：%) |
| 1 |
2023 |
|
| 2 |
2022 |
|
| 3 |
2021 |
|
| 4 |
2020 |
|
| 5 |
2019 |
|
| 6 |
2018 |
|
| 7 |
2017 |
34.13 |
| 8 |
2016 |
32.54 |
| 9 |
2015 |
32.98 |
| 10 |
2014 |
35.32 |
| 11 |
2013 |
29.00 |
| 12 |
2012 |
29.87 |
| 13 |
2011 |
25.36 |
| 14 |
2010 |
26.03 |
| 15 |
2009 |
24.71 |
| 16 |
2008 |
27.67 |
| 17 |
2007 |
30.99 |
| 18 |
2006 |
25.17 |
| 19 |
2005 |
24.42 |
| 20 |
2004 |
21.71 |
| 21 |
2003 |
26.12 |
| 22 |
2002 |
19.17 |
| 23 |
2001 |
16.51 |
| 24 |
2000 |
18.48 |
| 25 |
1999 |
21.35 |
| 26 |
1998 |
21.89 |
| 27 |
1997 |
19.25 |
| 28 |
1996 |
13.77 |
| 29 |
1995 |
18.49 |
| 30 |
1994 |
17.24 |
| 31 |
1993 |
19.35 |
| 32 |
1992 |
19.47 |
| 33 |
1991 |
22.79 |
| 34 |
1990 |
23.09 |
| 35 |
1989 |
16.55 |
| 36 |
1988 |
16.93 |
| 37 |
1987 |
13.53 |
| 38 |
1986 |
17.49 |
| 39 |
1985 |
19.35 |
| 40 |
1984 |
17.92 |
| 41 |
1983 |
17.87 |
| 42 |
1982 |
17.04 |
| 43 |
1981 |
11.33 |
| 44 |
1980 |
9.62 |
| 45 |
1979 |
18.74 |
| 46 |
1978 |
30.36 |
| 47 |
1977 |
28.15 |
| 48 |
1976 |
25.73 |
