| 序号 |
时间(年) |
数据(单位：%) |
| 1 |
2025 |
|
| 2 |
2024 |
|
| 3 |
2023 |
|
| 4 |
2022 |
|
| 5 |
2020 |
|
| 6 |
2019 |
|
| 7 |
2018 |
31.69 |
| 8 |
2017 |
31.94 |
| 9 |
2016 |
30.08 |
| 10 |
2015 |
28.04 |
| 11 |
2013 |
27.22 |
| 12 |
2012 |
28.93 |
| 13 |
2011 |
31.43 |
| 14 |
2010 |
29.63 |
| 15 |
2009 |
29.27 |
| 16 |
2008 |
30.66 |
| 17 |
2006 |
30.45 |
| 18 |
2005 |
28.24 |
| 19 |
2004 |
27.90 |
| 20 |
2003 |
27.97 |
| 21 |
2002 |
28.10 |
| 22 |
2001 |
28.23 |
| 23 |
1999 |
30.46 |
| 24 |
1998 |
31.74 |
| 25 |
1997 |
32.25 |
| 26 |
1996 |
34.60 |
| 27 |
1995 |
35.80 |
| 28 |
1994 |
35.80 |
| 29 |
1992 |
34.02 |
| 30 |
1991 |
34.53 |
| 31 |
1990 |
32.83 |
| 32 |
1989 |
34.05 |
| 33 |
1988 |
32.01 |
| 34 |
1987 |
27.31 |
| 35 |
1985 |
23.01 |
| 36 |
1984 |
22.44 |
| 37 |
1983 |
21.99 |
| 38 |
1982 |
22.30 |
| 39 |
1981 |
20.85 |
| 40 |
1980 |
22.09 |
| 41 |
1978 |
23.73 |
| 42 |
1977 |
21.89 |
| 43 |
1976 |
20.46 |
| 44 |
1975 |
20.56 |
