| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | 28.29 |
| 8 | 2014 | 30.33 |
| 9 | 2013 | 30.48 |
| 10 | 2012 | 30.86 |
| 11 | 2011 | 32.64 |
| 12 | 2010 | 34.01 |
| 13 | 2009 | 29.90 |
| 14 | 2008 | 31.08 |
| 15 | 2007 | 32.68 |
| 16 | 2006 | 34.16 |
| 17 | 2005 | 36.49 |
| 18 | 2004 | 39.97 |
| 19 | 2003 | 41.90 |
| 20 | 2002 | 42.82 |
| 21 | 2001 | 42.68 |
| 22 | 2000 | 45.31 |
| 23 | 1999 | 42.51 |
| 24 | 1998 | 41.99 |
| 25 | 1997 | 39.97 |
| 26 | 1996 | 39.81 |
| 27 | 1995 | 42.52 |
| 28 | 1994 | 43.76 |
| 29 | 1993 | 48.15 |
| 30 | 1992 | 49.94 |
| 31 | 1991 | 51.93 |
| 32 | 1990 | 50.99 |
| 33 | 1989 | 52.00 |
| 34 | 1988 | 50.69 |
| 35 | 1987 | 51.83 |
| 36 | 1986 | 53.29 |
| 37 | 1985 | 53.78 |
| 38 | 1984 | 59.37 |
| 39 | 1983 | 63.92 |
| 40 | 1982 | 63.14 |
| 41 | 1981 | 62.27 |
| 42 | 1980 | 62.02 |
| 43 | 1979 | 61.74 |
| 44 | 1978 | 62.60 |
