| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2022 | |
| 2 | 2021 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | 36.32 |
| 8 | 2014 | 35.50 |
| 9 | 2013 | 35.11 |
| 10 | 2012 | 34.89 |
| 11 | 2011 | 33.94 |
| 12 | 2010 | 32.37 |
| 13 | 2009 | 29.19 |
| 14 | 2008 | 29.03 |
| 15 | 2007 | 29.86 |
| 16 | 2006 | 29.97 |
| 17 | 2005 | 29.17 |
| 18 | 2004 | 26.83 |
| 19 | 2003 | 26.76 |
| 20 | 2002 | 26.36 |
| 21 | 2001 | 25.99 |
| 22 | 2000 | 25.35 |
| 23 | 1999 | 24.92 |
| 24 | 1998 | 24.67 |
| 25 | 1997 | 25.04 |
| 26 | 1996 | 24.33 |
| 27 | 1995 | 23.55 |
| 28 | 1990 | 18.12 |
| 29 | 1985 | 16.52 |
| 30 | 1980 | 13.06 |
| 31 | 1978 | 11.89 |
| 32 | 1975 | 11.41 |
| 33 | 1970 | 9.47 |
| 34 | 1969 | 7.39 |
| 35 | 1965 | 7.01 |
| 36 | 1962 | 4.69 |
| 37 | 1957 | 4.69 |
