| 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 | 28.34 |
| 12 | 2014 | 29.39 |
| 13 | 2013 | 30.99 |
| 14 | 2012 | 35.95 |
| 15 | 2011 | 28.03 |
| 16 | 2010 | 29.35 |
| 17 | 2009 | 28.38 |
| 18 | 2008 | 26.37 |
| 19 | 2007 | 23.53 |
| 20 | 1981 | 36.05 |
| 21 | 1980 | 35.61 |
| 22 | 1979 | 30.29 |
| 23 | 1978 | 22.43 |
| 24 | 1977 | 24.39 |
| 25 | 1976 | 35.83 |
| 26 | 1975 | 18.99 |
| 27 | 1974 | 12.68 |
| 28 | 1973 | 11.89 |
| 29 | 1972 | 12.86 |
| 30 | 1971 | 10.97 |
| 31 | 1970 | 10.18 |
| 32 | 1969 | 10.40 |
| 33 | 1968 | 11.16 |
| 34 | 1967 | 10.39 |
