| 年份 | 也门共和国 |
|---|---|
| 2023 | - |
| 2022 | 0.259102 |
| 2021 | 0.265208 |
| 2020 | 0.27192 |
| 2019 | 0.273942 |
| 2018 | 0.271369 |
| 2017 | 0.268407 |
| 2016 | 0.265503 |
| 2015 | 0.263194 |
| 2014 | 0.260868 |
| 2013 | 0.257997 |
| 2012 | 0.254895 |
| 2011 | 0.251807 |
| 2010 | 0.24895 |
| 2009 | 0.246252 |
| 2008 | 0.243418 |
| 2007 | 0.2404 |
| 2006 | 0.237228 |
| 2005 | 0.23415 |
| 2004 | 0.231923 |
| 2003 | 0.230601 |
| 2002 | 0.229529 |
| 2001 | 0.228643 |
| 2000 | 0.228051 |
| 1999 | 0.227802 |
| 1998 | 0.227864 |
| 1997 | 0.22823 |
| 1996 | 0.229126 |
| 1995 | 0.230471 |
| 1994 | 0.231359 |
| 1993 | 0.231626 |
| 1992 | 0.231941 |
| 1991 | 0.232368 |
| 1990 | 0.23281 |
| 1989 | 0.233262 |
| 1988 | 0.233782 |
| 1987 | 0.234201 |
| 1986 | 0.234808 |
| 1985 | 0.235514 |
| 1984 | 0.236154 |
| 1983 | 0.237201 |
| 1982 | 0.238514 |
| 1981 | 0.239666 |
| 1980 | 0.240542 |
| 1979 | 0.241306 |
| 1978 | 0.241707 |
| 1977 | 0.241845 |
| 1976 | 0.24252 |
| 1975 | 0.24418 |
| 1974 | 0.246871 |
| 1973 | 0.251019 |
| 1972 | 0.25658 |
| 1971 | 0.262737 |
| 1970 | 0.268784 |
| 1969 | 0.274627 |
| 1968 | 0.280431 |
| 1967 | 0.286072 |
| 1966 | 0.291765 |
| 1965 | 0.297487 |
| 1964 | 0.30308 |
| 1963 | 0.309105 |
| 1962 | 0.314848 |
| 1961 | 0.319022 |
| 1960 | 0.321412 |