| 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 | 30.44 |
| 12 | 2014 | 34.10 |
| 13 | 2013 | 32.67 |
| 14 | 2012 | 35.72 |
| 15 | 2011 | 25.33 |
| 16 | 2010 | 31.30 |
| 17 | 2009 | 30.54 |
| 18 | 2008 | 27.98 |
| 19 | 2007 | 24.92 |
| 20 | 1981 | 37.60 |
| 21 | 1980 | 37.04 |
| 22 | 1979 | 32.75 |
| 23 | 1978 | 25.02 |
| 24 | 1977 | 23.80 |
| 25 | 1976 | 34.27 |
| 26 | 1975 | 18.08 |
| 27 | 1974 | 12.68 |
| 28 | 1973 | 14.27 |
| 29 | 1972 | 11.25 |
| 30 | 1971 | 9.14 |
| 31 | 1970 | 10.18 |
| 32 | 1969 | 11.67 |
| 33 | 1968 | 12.30 |
| 34 | 1967 | 11.58 |
| 35 | 1966 | 10.12 |
| 36 | 1965 | 11.48 |
| 37 | 1964 | 9.70 |
| 38 | 1963 | 8.63 |
| 39 | 1962 | 7.02 |
| 40 | 1961 | 3.92 |
| 41 | 1960 | 2.02 |
