| 年份 | 也门共和国 |
|---|---|
| 2023 | - |
| 2022 | 0.647845 |
| 2021 | 0.670609 |
| 2020 | 0.694079 |
| 2019 | 0.708142 |
| 2018 | 0.711697 |
| 2017 | 0.709255 |
| 2016 | 0.702503 |
| 2015 | 0.697987 |
| 2014 | 0.695717 |
| 2013 | 0.694414 |
| 2012 | 0.693941 |
| 2011 | 0.692585 |
| 2010 | 0.689616 |
| 2009 | 0.685996 |
| 2008 | 0.681788 |
| 2007 | 0.67705 |
| 2006 | 0.67328 |
| 2005 | 0.670751 |
| 2004 | 0.668441 |
| 2003 | 0.665953 |
| 2002 | 0.663674 |
| 2001 | 0.662187 |
| 2000 | 0.661963 |
| 1999 | 0.662815 |
| 1998 | 0.664259 |
| 1997 | 0.666036 |
| 1996 | 0.668191 |
| 1995 | 0.671372 |
| 1994 | 0.67604 |
| 1993 | 0.681509 |
| 1992 | 0.687383 |
| 1991 | 0.69382 |
| 1990 | 0.700518 |
| 1989 | 0.707454 |
| 1988 | 0.714893 |
| 1987 | 0.72282 |
| 1986 | 0.731813 |
| 1985 | 0.740918 |
| 1984 | 0.749291 |
| 1983 | 0.757828 |
| 1982 | 0.766395 |
| 1981 | 0.774549 |
| 1980 | 0.782059 |
| 1979 | 0.789034 |
| 1978 | 0.794926 |
| 1977 | 0.800108 |
| 1976 | 0.805905 |
| 1975 | 0.81243 |
| 1974 | 0.819708 |
| 1973 | 0.828456 |
| 1972 | 0.83833 |
| 1971 | 0.847187 |
| 1970 | 0.853551 |
| 1969 | 0.857323 |
| 1968 | 0.858509 |
| 1967 | 0.858186 |
| 1966 | 0.859552 |
| 1965 | 0.865773 |
| 1964 | 0.877556 |
| 1963 | 0.897319 |
| 1962 | 0.923714 |
| 1961 | 0.950229 |
| 1960 | 0.973815 |