| 年份 | 也门共和国 |
|---|---|
| 2023 | - |
| 2022 | 1.34666 |
| 2021 | 1.32649 |
| 2020 | 1.30853 |
| 2019 | 1.29127 |
| 2018 | 1.27543 |
| 2017 | 1.26316 |
| 2016 | 1.25363 |
| 2015 | 1.24654 |
| 2014 | 1.24892 |
| 2013 | 1.26326 |
| 2012 | 1.28864 |
| 2011 | 1.32318 |
| 2010 | 1.3582 |
| 2009 | 1.38232 |
| 2008 | 1.39304 |
| 2007 | 1.39322 |
| 2006 | 1.38666 |
| 2005 | 1.38401 |
| 2004 | 1.38528 |
| 2003 | 1.3889 |
| 2002 | 1.39407 |
| 2001 | 1.39756 |
| 2000 | 1.39833 |
| 1999 | 1.39864 |
| 1998 | 1.39881 |
| 1997 | 1.39844 |
| 1996 | 1.39995 |
| 1995 | 1.40569 |
| 1994 | 1.41531 |
| 1993 | 1.42637 |
| 1992 | 1.43869 |
| 1991 | 1.4531 |
| 1990 | 1.4696 |
| 1989 | 1.48757 |
| 1988 | 1.50664 |
| 1987 | 1.5266 |
| 1986 | 1.54818 |
| 1985 | 1.57017 |
| 1984 | 1.5913 |
| 1983 | 1.61262 |
| 1982 | 1.63411 |
| 1981 | 1.65546 |
| 1980 | 1.67652 |
| 1979 | 1.69746 |
| 1978 | 1.71771 |
| 1977 | 1.73725 |
| 1976 | 1.75657 |
| 1975 | 1.77506 |
| 1974 | 1.79253 |
| 1973 | 1.80941 |
| 1972 | 1.82596 |
| 1971 | 1.84156 |
| 1970 | 1.85566 |
| 1969 | 1.86814 |
| 1968 | 1.87924 |
| 1967 | 1.89004 |
| 1966 | 1.90165 |
| 1965 | 1.91448 |
| 1964 | 1.92909 |
| 1963 | 1.94767 |
| 1962 | 1.96817 |
| 1961 | 1.984 |
| 1960 | 1.99242 |