| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | 11.53 |
| 8 | 2014 | 11.49 |
| 9 | 2013 | 12.00 |
| 10 | 2012 | 12.58 |
| 11 | 2011 | 12.91 |
| 12 | 2010 | 13.05 |
| 13 | 2009 | 13.28 |
| 14 | 2008 | 13.97 |
| 15 | 2007 | 14.74 |
| 16 | 2006 | 15.79 |
| 17 | 2005 | 17.38 |
| 18 | 2004 | 17.61 |
| 19 | 2003 | 18.20 |
| 20 | 2002 | 19.63 |
| 21 | 2001 | 19.20 |
| 22 | 2000 | 18.67 |
| 23 | 1999 | 19.18 |
| 24 | 1998 | 19.83 |
| 25 | 1997 | 20.59 |
| 26 | 1996 | 22.11 |
| 27 | 1995 | 22.61 |
| 28 | 1994 | 23.41 |
| 29 | 1993 | 24.19 |
| 30 | 1992 | 24.87 |
| 31 | 1991 | 25.42 |
| 32 | 1990 | 25.20 |
| 33 | 1989 | 25.26 |
| 34 | 1988 | 26.65 |
| 35 | 1987 | 27.20 |
| 36 | 1986 | 27.44 |
| 37 | 1985 | 27.89 |
| 38 | 1984 | 28.17 |
| 39 | 1983 | 29.13 |
| 40 | 1982 | 29.51 |
| 41 | 1981 | 29.12 |
