| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | 19.87 |
| 8 | 2014 | 17.39 |
| 9 | 2013 | 22.27 |
| 10 | 2012 | 19.38 |
| 11 | 2011 | 25.10 |
| 12 | 2010 | 17.70 |
| 13 | 2009 | 26.83 |
| 14 | 2008 | 23.79 |
| 15 | 2007 | 21.35 |
| 16 | 2006 | 17.96 |
| 17 | 2005 | 17.35 |
| 18 | 2004 | 18.32 |
| 19 | 2003 | 17.61 |
| 20 | 2002 | 18.06 |
| 21 | 2001 | 15.46 |
| 22 | 2000 | 18.16 |
| 23 | 1999 | 18.93 |
| 24 | 1998 | 15.42 |
| 25 | 1997 | 15.68 |
| 26 | 1996 | 13.73 |
| 27 | 1995 | 17.44 |
| 28 | 1990 | 18.54 |
| 29 | 1987 | 14.67 |
| 30 | 1986 | 15.42 |
| 31 | 1982 | 9.71 |
| 32 | 1980 | 8.61 |
| 33 | 1979 | 9.94 |
| 34 | 1978 | 9.56 |
| 35 | 1977 | 12.12 |
| 36 | 1976 | 9.81 |
| 37 | 1975 | 10.95 |
| 38 | 1974 | 14.05 |
| 39 | 1973 | 12.91 |
| 40 | 1972 | 12.05 |
| 41 | 1971 | 13.54 |
| 42 | 1970 | 19.70 |
| 43 | 1969 | 11.91 |
| 44 | 1968 | 14.56 |
| 45 | 1967 | 12.18 |
| 46 | 1966 | 11.91 |
| 47 | 1965 | 12.49 |
| 48 | 1964 | 14.84 |
| 49 | 1963 | 14.26 |
| 50 | 1962 | 18.54 |
