| 年份 | 也门共和国 |
|---|---|
| 2023 | - |
| 2022 | 0.447509 |
| 2021 | 0.452829 |
| 2020 | 0.457948 |
| 2019 | 0.458424 |
| 2018 | 0.45476 |
| 2017 | 0.450566 |
| 2016 | 0.446653 |
| 2015 | 0.443616 |
| 2014 | 0.440721 |
| 2013 | 0.43729 |
| 2012 | 0.433689 |
| 2011 | 0.430031 |
| 2010 | 0.426378 |
| 2009 | 0.422707 |
| 2008 | 0.419232 |
| 2007 | 0.415956 |
| 2006 | 0.412596 |
| 2005 | 0.409421 |
| 2004 | 0.406754 |
| 2003 | 0.40448 |
| 2002 | 0.40235 |
| 2001 | 0.400557 |
| 2000 | 0.399284 |
| 1999 | 0.3985 |
| 1998 | 0.39812 |
| 1997 | 0.398141 |
| 1996 | 0.398735 |
| 1995 | 0.400138 |
| 1994 | 0.401934 |
| 1993 | 0.403824 |
| 1992 | 0.405944 |
| 1991 | 0.408192 |
| 1990 | 0.410541 |
| 1989 | 0.413041 |
| 1988 | 0.41541 |
| 1987 | 0.417725 |
| 1986 | 0.420334 |
| 1985 | 0.423235 |
| 1984 | 0.426332 |
| 1983 | 0.429722 |
| 1982 | 0.433772 |
| 1981 | 0.438018 |
| 1980 | 0.441976 |
| 1979 | 0.445928 |
| 1978 | 0.449587 |
| 1977 | 0.453097 |
| 1976 | 0.456967 |
| 1975 | 0.461659 |
| 1974 | 0.467305 |
| 1973 | 0.474042 |
| 1972 | 0.481906 |
| 1971 | 0.489763 |
| 1970 | 0.496858 |
| 1969 | 0.502919 |
| 1968 | 0.508245 |
| 1967 | 0.512655 |
| 1966 | 0.516074 |
| 1965 | 0.519029 |
| 1964 | 0.520967 |
| 1963 | 0.521725 |
| 1962 | 0.520607 |
| 1961 | 0.516572 |
| 1960 | 0.510423 |