| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | |
| 8 | 2014 | |
| 9 | 2013 | |
| 10 | 2012 | |
| 11 | 2011 | 19.89 |
| 12 | 2010 | 25.29 |
| 13 | 1974 | 11.20 |
| 14 | 1973 | 19.42 |
| 15 | 1972 | 23.15 |
| 16 | 1971 | 20.38 |
| 17 | 1970 | 22.70 |
| 18 | 1969 | 13.23 |
| 19 | 1968 | 8.62 |
| 20 | 1967 | 20.10 |
| 21 | 1966 | 13.73 |
| 22 | 1965 | 13.68 |
| 23 | 1964 | 13.83 |
| 24 | 1963 | 17.83 |
| 25 | 1962 | 15.79 |
