| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2020 | |
| 2 | 2019 | |
| 3 | 2018 | |
| 4 | 2017 | |
| 5 | 2016 | |
| 6 | 2015 | |
| 7 | 2014 | |
| 8 | 2013 | |
| 9 | 2012 | |
| 10 | 2011 | |
| 11 | 2010 | 11.58 |
| 12 | 2009 | 10.58 |
| 13 | 2008 | 9.39 |
| 14 | 2007 | 6.84 |
| 15 | 2006 | 4.84 |
| 16 | 1981 | 5.84 |
| 17 | 1980 | 5.98 |
| 18 | 1979 | 6.06 |
| 19 | 1978 | 4.56 |
| 20 | 1977 | 4.13 |
| 21 | 1976 | 5.43 |
| 22 | 1975 | 4.71 |
| 23 | 1974 | 5.38 |
| 24 | 1973 | 5.49 |
| 25 | 1972 | 5.55 |
| 26 | 1971 | 3.83 |
| 27 | 1970 | 4.55 |
| 28 | 1969 | 4.87 |
| 29 | 1968 | 4.03 |
| 30 | 1967 | 3.25 |
| 31 | 1966 | 3.80 |
| 32 | 1965 | 4.97 |
| 33 | 1964 | 5.19 |
| 34 | 1963 | 5.07 |
| 35 | 1962 | 7.15 |
| 36 | 1961 | 8.75 |
| 37 | 1960 | 9.27 |
