| 序号 |
时间(年) |
数据(单位：%) |
| 1 |
2025 |
|
| 2 |
2024 |
|
| 3 |
2023 |
|
| 4 |
2022 |
|
| 5 |
2021 |
|
| 6 |
2020 |
|
| 7 |
2019 |
37.95 |
| 8 |
2018 |
35.62 |
| 9 |
2017 |
35.85 |
| 10 |
2016 |
40.32 |
| 11 |
2015 |
39.60 |
| 12 |
2014 |
38.08 |
| 13 |
2013 |
39.88 |
| 14 |
2012 |
31.26 |
| 15 |
2011 |
31.19 |
| 16 |
2010 |
35.15 |
| 17 |
2009 |
28.81 |
| 18 |
2008 |
38.33 |
| 19 |
2007 |
32.50 |
| 20 |
2006 |
32.55 |
| 21 |
2005 |
31.14 |
| 22 |
2004 |
31.63 |
| 23 |
2003 |
32.86 |
| 24 |
2002 |
29.74 |
| 25 |
2001 |
33.89 |
| 26 |
2000 |
32.94 |
| 27 |
1999 |
29.78 |
| 28 |
1998 |
28.92 |
| 29 |
1997 |
33.21 |
| 30 |
1996 |
33.62 |
| 31 |
1995 |
36.68 |
| 32 |
1994 |
36.99 |
| 33 |
1993 |
30.39 |
| 34 |
1992 |
33.87 |
| 35 |
1991 |
31.26 |
| 36 |
1990 |
30.93 |
| 37 |
1989 |
29.01 |
| 38 |
1988 |
32.25 |
| 39 |
1987 |
30.49 |
| 40 |
1986 |
34.96 |
| 41 |
1985 |
42.72 |
| 42 |
1984 |
36.88 |
| 43 |
1983 |
32.08 |
| 44 |
1982 |
29.63 |
| 45 |
1981 |
28.80 |
| 46 |
1980 |
29.22 |
| 47 |
1979 |
27.23 |
| 48 |
1978 |
29.83 |
| 49 |
1977 |
19.58 |
| 50 |
1976 |
21.03 |
| 51 |
1975 |
29.26 |
| 52 |
1974 |
40.87 |
| 53 |
1973 |
22.84 |
| 54 |
1972 |
19.57 |
| 55 |
1971 |
20.22 |
| 56 |
1970 |
18.20 |
| 57 |
1969 |
19.01 |
| 58 |
1968 |
18.10 |
| 59 |
1967 |
23.90 |
