| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | 43.42 |
| 8 | 2014 | 34.91 |
| 9 | 2013 | 32.72 |
| 10 | 2012 | 30.36 |
| 11 | 2011 | 34.10 |
| 12 | 2010 | 37.88 |
| 13 | 2009 | 35.82 |
| 14 | 2008 | 23.52 |
| 15 | 2007 | 24.50 |
| 16 | 2006 | 20.84 |
| 17 | 2005 | 20.25 |
| 18 | 2004 | 26.97 |
| 19 | 1976 | 21.07 |
| 20 | 1975 | 22.81 |
| 21 | 1974 | 19.18 |
| 22 | 1973 | 29.42 |
| 23 | 1972 | 26.60 |
| 24 | 1971 | 23.50 |
| 25 | 1970 | 25.51 |
| 26 | 1969 | 26.47 |
| 27 | 1968 | 24.01 |
| 28 | 1964 | 19.93 |
| 29 | 1963 | 23.16 |
| 30 | 1962 | 21.20 |
| 31 | 1961 | 20.85 |
| 32 | 1960 | 21.97 |
