| 序号 |
时间(年) |
数据(单位：%) |
| 1 |
2023 |
|
| 2 |
2022 |
|
| 3 |
2021 |
|
| 4 |
2020 |
|
| 5 |
2019 |
|
| 6 |
2018 |
|
| 7 |
2017 |
51.01 |
| 8 |
2016 |
46.95 |
| 9 |
2015 |
51.31 |
| 10 |
2014 |
53.67 |
| 11 |
2013 |
57.62 |
| 12 |
2012 |
59.12 |
| 13 |
2011 |
55.62 |
| 14 |
2010 |
53.10 |
| 15 |
2009 |
48.92 |
| 16 |
2008 |
48.96 |
| 17 |
2007 |
49.12 |
| 18 |
2006 |
50.41 |
| 19 |
2005 |
48.59 |
| 20 |
2004 |
45.45 |
| 21 |
2003 |
45.38 |
| 22 |
2002 |
48.17 |
| 23 |
2001 |
47.86 |
| 24 |
2000 |
50.43 |
| 25 |
1999 |
46.86 |
| 26 |
1998 |
47.10 |
| 27 |
1997 |
47.23 |
| 28 |
1996 |
45.43 |
| 29 |
1995 |
46.50 |
| 30 |
1994 |
43.78 |
| 31 |
1993 |
43.68 |
| 32 |
1992 |
41.77 |
| 33 |
1991 |
39.51 |
| 34 |
1990 |
38.82 |
| 35 |
1989 |
34.31 |
| 36 |
1988 |
27.86 |
| 37 |
1987 |
22.82 |
| 38 |
1986 |
23.61 |
| 39 |
1985 |
27.59 |
| 40 |
1984 |
27.59 |
| 41 |
1983 |
29.68 |
| 42 |
1982 |
27.92 |
| 43 |
1981 |
27.29 |
| 44 |
1980 |
25.32 |
| 45 |
1979 |
24.74 |
| 46 |
1978 |
22.21 |
| 47 |
1977 |
20.88 |
