| 年份 | 加蓬 |
|---|---|
| 2023 | - |
| 2022 | 8.1495 |
| 2021 | 8.2134 |
| 2020 | 8.31743 |
| 2019 | 8.47457 |
| 2018 | 8.68145 |
| 2017 | 8.91988 |
| 2016 | 9.16781 |
| 2015 | 9.3961 |
| 2014 | 9.58054 |
| 2013 | 9.71361 |
| 2012 | 9.80454 |
| 2011 | 9.86368 |
| 2010 | 9.89403 |
| 2009 | 9.89688 |
| 2008 | 9.87207 |
| 2007 | 9.82299 |
| 2006 | 9.7592 |
| 2005 | 9.68061 |
| 2004 | 9.5833 |
| 2003 | 9.4721 |
| 2002 | 9.35003 |
| 2001 | 9.21732 |
| 2000 | 9.08126 |
| 1999 | 8.95021 |
| 1998 | 8.82457 |
| 1997 | 8.70682 |
| 1996 | 8.59578 |
| 1995 | 8.48983 |
| 1994 | 8.39334 |
| 1993 | 8.3054 |
| 1992 | 8.22184 |
| 1991 | 8.14793 |
| 1990 | 8.08739 |
| 1989 | 8.0379 |
| 1988 | 7.99792 |
| 1987 | 7.96458 |
| 1986 | 7.93097 |
| 1985 | 7.89514 |
| 1984 | 7.85919 |
| 1983 | 7.81866 |
| 1982 | 7.77052 |
| 1981 | 7.72177 |
| 1980 | 7.67946 |
| 1979 | 7.64464 |
| 1978 | 7.62079 |
| 1977 | 7.60984 |
| 1976 | 7.60905 |
| 1975 | 7.61567 |
| 1974 | 7.61462 |
| 1973 | 7.58287 |
| 1972 | 7.5535 |
| 1971 | 7.5339 |
| 1970 | 7.48229 |
| 1969 | 7.40841 |
| 1968 | 7.3763 |
| 1967 | 7.36259 |
| 1966 | 7.33056 |
| 1965 | 7.321 |
| 1964 | 7.34262 |
| 1963 | 7.40149 |
| 1962 | 7.48825 |
| 1961 | 7.58275 |
| 1960 | 7.671 |