| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | 41.30 |
| 8 | 2014 | 40.91 |
| 9 | 2013 | 41.86 |
| 10 | 2012 | 42.09 |
| 11 | 2011 | 41.50 |
| 12 | 2010 | 40.96 |
| 13 | 2009 | 40.57 |
| 14 | 2008 | 36.92 |
| 15 | 2007 | 35.73 |
| 16 | 2006 | 34.00 |
| 17 | 2005 | 33.52 |
| 18 | 2004 | 35.74 |
| 19 | 2003 | 33.52 |
| 20 | 2002 | 31.95 |
| 21 | 2001 | 30.75 |
| 22 | 2000 | 31.36 |
| 23 | 1999 | 30.11 |
| 24 | 1998 | 30.41 |
| 25 | 1997 | 36.72 |
| 26 | 1996 | 32.73 |
| 27 | 1995 | 39.17 |
| 28 | 1994 | 32.30 |
| 29 | 1993 | 31.80 |
| 30 | 1992 | 28.06 |
| 31 | 1991 | 17.64 |
| 32 | 1990 | 17.83 |
| 33 | 1989 | 16.70 |
| 34 | 1988 | 17.60 |
| 35 | 1987 | 27.13 |
| 36 | 1986 | 15.27 |
| 37 | 1985 | 15.57 |
| 38 | 1984 | 25.33 |
| 39 | 1983 | 16.67 |
