| 序号 |
时间(年) |
数据(单位：%) |
| 1 |
2020 |
|
| 2 |
2019 |
|
| 3 |
2018 |
|
| 4 |
2016 |
|
| 5 |
2015 |
|
| 6 |
2014 |
|
| 7 |
2013 |
43.20 |
| 8 |
2012 |
43.00 |
| 9 |
2011 |
38.40 |
| 10 |
2010 |
40.46 |
| 11 |
2009 |
40.54 |
| 12 |
2008 |
40.76 |
| 13 |
2007 |
42.02 |
| 14 |
2006 |
42.00 |
| 15 |
2005 |
42.26 |
| 16 |
2004 |
42.12 |
| 17 |
2003 |
42.25 |
| 18 |
2002 |
42.31 |
| 19 |
2001 |
42.06 |
| 20 |
2000 |
38.34 |
| 21 |
1999 |
36.84 |
| 22 |
1998 |
36.56 |
| 23 |
1997 |
34.83 |
| 24 |
1996 |
35.03 |
| 25 |
1995 |
33.06 |
| 26 |
1994 |
33.33 |
| 27 |
1993 |
32.69 |
| 28 |
1992 |
32.80 |
| 29 |
1991 |
32.55 |
| 30 |
1990 |
30.23 |
| 31 |
1989 |
30.91 |
| 32 |
1988 |
31.55 |
| 33 |
1987 |
29.86 |
| 34 |
1986 |
29.91 |
| 35 |
1985 |
29.01 |
| 36 |
1984 |
29.68 |
| 37 |
1983 |
29.58 |
| 38 |
1982 |
29.67 |
| 39 |
1981 |
29.55 |
| 40 |
1980 |
30.50 |
