| 年份 | 也门共和国 |
|---|---|
| 2023 | - |
| 2022 | 2.66223 |
| 2021 | 2.68904 |
| 2020 | 2.71838 |
| 2019 | 2.73673 |
| 2018 | 2.74571 |
| 2017 | 2.75701 |
| 2016 | 2.77045 |
| 2015 | 2.78638 |
| 2014 | 2.79619 |
| 2013 | 2.79557 |
| 2012 | 2.78576 |
| 2011 | 2.76923 |
| 2010 | 2.75529 |
| 2009 | 2.74503 |
| 2008 | 2.7365 |
| 2007 | 2.72933 |
| 2006 | 2.72265 |
| 2005 | 2.71527 |
| 2004 | 2.7068 |
| 2003 | 2.69728 |
| 2002 | 2.68727 |
| 2001 | 2.68 |
| 2000 | 2.67778 |
| 1999 | 2.6795 |
| 1998 | 2.68307 |
| 1997 | 2.68846 |
| 1996 | 2.69678 |
| 1995 | 2.71066 |
| 1994 | 2.73096 |
| 1993 | 2.75478 |
| 1992 | 2.78037 |
| 1991 | 2.80733 |
| 1990 | 2.83514 |
| 1989 | 2.86372 |
| 1988 | 2.89295 |
| 1987 | 2.92335 |
| 1986 | 2.95601 |
| 1985 | 2.98901 |
| 1984 | 3.02065 |
| 1983 | 3.05217 |
| 1982 | 3.08463 |
| 1981 | 3.11666 |
| 1980 | 3.1471 |
| 1979 | 3.17717 |
| 1978 | 3.20588 |
| 1977 | 3.23339 |
| 1976 | 3.26089 |
| 1975 | 3.28806 |
| 1974 | 3.31465 |
| 1973 | 3.34103 |
| 1972 | 3.36814 |
| 1971 | 3.39615 |
| 1970 | 3.42463 |
| 1969 | 3.45367 |
| 1968 | 3.48696 |
| 1967 | 3.52451 |
| 1966 | 3.56242 |
| 1965 | 3.59997 |
| 1964 | 3.63713 |
| 1963 | 3.67656 |
| 1962 | 3.71566 |
| 1961 | 3.75078 |
| 1960 | 3.78603 |