| 年份 | 也门共和国 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 0.55685 |
| 2020 | 0.55685 |
| 2019 | 0.55685 |
| 2018 | 0.539803 |
| 2017 | 0.54738 |
| 2016 | 0.549274 |
| 2015 | 0.558744 |
| 2014 | 0.564426 |
| 2013 | 0.564426 |
| 2012 | 0.562532 |
| 2011 | 0.551168 |
| 2010 | 0.545486 |
| 2009 | 0.532227 |
| 2008 | 0.515181 |
| 2007 | 0.49624 |
| 2006 | 0.479194 |
| 2005 | 0.446995 |
| 2004 | 0.439419 |
| 2003 | 0.460253 |
| 2002 | 0.456465 |
| 2001 | 0.244332 |
| 2000 | 0.234862 |
| 1999 | 0.22918 |
| 1998 | 0.219709 |
| 1997 | 0.214027 |
| 1996 | 0.204557 |
| 1995 | 0.195087 |
| 1994 | 0.195087 |
| 1993 | 0.195087 |
| 1992 | 0.195087 |
| 1991 | 0.195087 |
| 1990 | 0.195087 |
| 1989 | 0.195087 |
| 1988 | 0.195087 |
| 1987 | 0.195087 |
| 1986 | 0.185617 |
| 1985 | 0.185617 |
| 1984 | 0.183723 |
| 1983 | 0.183723 |
| 1982 | 0.183723 |
| 1981 | 0.183723 |
| 1980 | 0.183723 |
| 1979 | 0.183723 |
| 1978 | 0.183723 |
| 1977 | 0.183723 |
| 1976 | 0.183723 |
| 1975 | 0.183723 |
| 1974 | 0.174252 |
| 1973 | 0.174252 |
| 1972 | 0.174252 |
| 1971 | 0.162888 |
| 1970 | 0.162888 |
| 1969 | 0.162888 |
| 1968 | 0.153418 |
| 1967 | 0.153418 |
| 1966 | 0.153418 |
| 1965 | 0.142054 |
| 1964 | 0.142054 |
| 1963 | 0.142054 |
| 1962 | 0.142054 |
| 1961 | 0.142054 |
| 1960 | - |