| 序号 |
时间(年) |
数据(单位：%) |
| 1 |
2025 |
|
| 2 |
2024 |
|
| 3 |
2023 |
|
| 4 |
2022 |
|
| 5 |
2021 |
|
| 6 |
2020 |
|
| 7 |
2019 |
49.15 |
| 8 |
2018 |
49.57 |
| 9 |
2017 |
50.59 |
| 10 |
2016 |
51.69 |
| 11 |
2015 |
51.50 |
| 12 |
2014 |
51.23 |
| 13 |
2013 |
50.38 |
| 14 |
2012 |
49.39 |
| 15 |
2011 |
49.53 |
| 16 |
2010 |
49.83 |
| 17 |
2009 |
48.50 |
| 18 |
2008 |
51.36 |
| 19 |
2007 |
51.18 |
| 20 |
2006 |
48.60 |
| 21 |
2005 |
45.08 |
| 22 |
2004 |
43.55 |
| 23 |
2003 |
42.03 |
| 24 |
2002 |
42.46 |
| 25 |
2001 |
43.85 |
| 26 |
2000 |
45.44 |
| 27 |
1999 |
43.64 |
| 28 |
1998 |
41.15 |
| 29 |
1997 |
41.69 |
| 30 |
1996 |
39.98 |
| 31 |
1995 |
39.86 |
| 32 |
1994 |
40.49 |
| 33 |
1993 |
39.72 |
| 34 |
1992 |
37.85 |
| 35 |
1991 |
36.80 |
| 36 |
1990 |
36.27 |
| 37 |
1989 |
36.46 |
| 38 |
1988 |
33.41 |
| 39 |
1987 |
31.12 |
| 40 |
1986 |
32.79 |
| 41 |
1985 |
29.34 |
| 42 |
1984 |
30.42 |
| 43 |
1983 |
28.61 |
| 44 |
1982 |
27.29 |
| 45 |
1981 |
25.73 |
| 46 |
1980 |
28.45 |
| 47 |
1979 |
30.03 |
| 48 |
1978 |
30.30 |
| 49 |
1977 |
28.56 |
| 50 |
1976 |
32.49 |
| 51 |
1975 |
31.22 |
| 52 |
1974 |
45.59 |
| 53 |
1973 |
43.26 |
| 54 |
1972 |
38.47 |
| 55 |
1971 |
37.36 |
| 56 |
1970 |
42.61 |
