| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2020 | |
| 2 | 2019 | |
| 3 | 2018 | |
| 4 | 2017 | |
| 5 | 2016 | |
| 6 | 2015 | |
| 7 | 2014 | 50.80 |
| 8 | 2013 | 50.10 |
| 9 | 2012 | 53.16 |
| 10 | 2011 | 56.30 |
| 11 | 2010 | 52.64 |
| 12 | 2009 | 49.65 |
| 13 | 1994 | 50.27 |
| 14 | 1993 | 51.62 |
| 15 | 1992 | 55.59 |
| 16 | 1991 | 45.19 |
| 17 | 1990 | 48.07 |
| 18 | 1989 | 46.94 |
| 19 | 1988 | 44.91 |
| 20 | 1987 | 43.52 |
| 21 | 1986 | 46.44 |
| 22 | 1985 | 30.26 |
| 23 | 1984 | 49.99 |
| 24 | 1983 | 52.62 |
| 25 | 1982 | 45.31 |
| 26 | 1981 | 45.44 |
| 27 | 1980 | 43.25 |
| 28 | 1979 | 43.14 |
| 29 | 1978 | 44.29 |
| 30 | 1977 | 43.68 |
