| 年份 | 也门共和国 |
|---|---|
| 2023 | - |
| 2022 | 14.2615 |
| 2021 | 14.4888 |
| 2020 | 14.6966 |
| 2019 | 14.9037 |
| 2018 | 15.1069 |
| 2017 | 15.2996 |
| 2016 | 15.4825 |
| 2015 | 15.6414 |
| 2014 | 15.7872 |
| 2013 | 15.9393 |
| 2012 | 16.0989 |
| 2011 | 16.2646 |
| 2010 | 16.4236 |
| 2009 | 16.567 |
| 2008 | 16.7017 |
| 2007 | 16.8215 |
| 2006 | 16.9328 |
| 2005 | 17.0768 |
| 2004 | 17.2587 |
| 2003 | 17.4438 |
| 2002 | 17.6602 |
| 2001 | 17.9206 |
| 2000 | 18.2605 |
| 1999 | 18.6904 |
| 1998 | 19.1672 |
| 1997 | 19.6573 |
| 1996 | 20.1193 |
| 1995 | 20.4877 |
| 1994 | 20.7538 |
| 1993 | 20.9798 |
| 1992 | 21.1675 |
| 1991 | 21.3291 |
| 1990 | 21.4694 |
| 1989 | 21.5831 |
| 1988 | 21.6652 |
| 1987 | 21.7211 |
| 1986 | 21.7243 |
| 1985 | 21.6892 |
| 1984 | 21.6425 |
| 1983 | 21.5333 |
| 1982 | 21.3744 |
| 1981 | 21.1969 |
| 1980 | 20.9939 |
| 1979 | 20.7676 |
| 1978 | 20.5555 |
| 1977 | 20.3729 |
| 1976 | 20.1939 |
| 1975 | 20.0158 |
| 1974 | 19.8393 |
| 1973 | 19.6667 |
| 1972 | 19.4812 |
| 1971 | 19.2759 |
| 1970 | 19.0508 |
| 1969 | 18.8138 |
| 1968 | 18.5617 |
| 1967 | 18.2877 |
| 1966 | 18.0186 |
| 1965 | 17.7671 |
| 1964 | 17.5219 |
| 1963 | 17.2863 |
| 1962 | 17.058 |
| 1961 | 16.8306 |
| 1960 | 16.6202 |