| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2025 | |
| 2 | 2024 | |
| 3 | 2023 | |
| 4 | 2022 | |
| 5 | 2021 | |
| 6 | 2020 | |
| 7 | 2019 | |
| 8 | 2018 | |
| 9 | 2017 | |
| 10 | 2016 | |
| 11 | 2015 | 20.87 |
| 12 | 2014 | 20.48 |
| 13 | 2013 | 20.51 |
| 14 | 2012 | 21.26 |
| 15 | 2011 | 20.83 |
| 16 | 2010 | 22.49 |
| 17 | 2009 | 23.55 |
| 18 | 2008 | 22.12 |
| 19 | 2007 | 21.94 |
| 20 | 2006 | 21.53 |
| 21 | 2005 | 22.53 |
| 22 | 2004 | 22.97 |
| 23 | 2003 | 24.38 |
| 24 | 2002 | 24.73 |
| 25 | 2001 | 25.93 |
| 26 | 2000 | 26.65 |
| 27 | 1999 | 28.34 |
| 28 | 1998 | 30.10 |
| 29 | 1997 | 31.01 |
| 30 | 1996 | 29.86 |
| 31 | 1995 | 32.36 |
| 32 | 1994 | 32.47 |
| 33 | 1993 | 33.00 |
| 34 | 1992 | 34.08 |
| 35 | 1991 | 37.73 |
| 36 | 1990 | 35.61 |
| 37 | 1989 | 35.38 |
| 38 | 1988 | 31.80 |
| 39 | 1987 | 30.59 |
| 40 | 1986 | 31.18 |
| 41 | 1985 | 31.21 |
| 42 | 1984 | 37.58 |
| 43 | 1983 | 37.50 |
| 44 | 1982 | 37.77 |
| 45 | 1981 | 38.20 |
| 46 | 1980 | 36.40 |
