| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | 22.40 |
| 8 | 2014 | 23.38 |
| 9 | 2013 | 27.11 |
| 10 | 2011 | 14.13 |
| 11 | 2010 | 15.23 |
| 12 | 2006 | 1.86 |
| 13 | 2005 | 7.89 |
| 14 | 2004 | 8.93 |
| 15 | 2003 | 10.49 |
| 16 | 2002 | 9.91 |
| 17 | 2001 | 16.07 |
| 18 | 2000 | 18.97 |
| 19 | 1999 | 20.44 |
| 20 | 1998 | 16.22 |
| 21 | 1997 | 20.88 |
| 22 | 1977 | 12.70 |
| 23 | 1976 | 11.10 |
| 24 | 1975 | 16.26 |
| 25 | 1974 | 18.38 |
| 26 | 1973 | 10.49 |
| 27 | 1972 | 10.55 |
| 28 | 1971 | 10.65 |
| 29 | 1970 | 6.55 |
| 30 | 1969 | 4.92 |
| 31 | 1968 | 8.04 |
| 32 | 1967 | 7.46 |
| 33 | 1966 | 9.91 |
| 34 | 1965 | 16.11 |
| 35 | 1964 | 16.19 |
| 36 | 1963 | 12.80 |
