| 年份 | 加蓬 |
|---|---|
| 2023 | - |
| 2022 | 6.23465 |
| 2021 | 6.1132 |
| 2020 | 5.98624 |
| 2019 | 5.86089 |
| 2018 | 5.73869 |
| 2017 | 5.62049 |
| 2016 | 5.5059 |
| 2015 | 5.39307 |
| 2014 | 5.28168 |
| 2013 | 5.17097 |
| 2012 | 5.06267 |
| 2011 | 4.96315 |
| 2010 | 4.87376 |
| 2009 | 4.79262 |
| 2008 | 4.71928 |
| 2007 | 4.6523 |
| 2006 | 4.58962 |
| 2005 | 4.53096 |
| 2004 | 4.47727 |
| 2003 | 4.42606 |
| 2002 | 4.37582 |
| 2001 | 4.32965 |
| 2000 | 4.29149 |
| 1999 | 4.26162 |
| 1998 | 4.24103 |
| 1997 | 4.2312 |
| 1996 | 4.23045 |
| 1995 | 4.23732 |
| 1994 | 4.24468 |
| 1993 | 4.24027 |
| 1992 | 4.24063 |
| 1991 | 4.25206 |
| 1990 | 4.2568 |
| 1989 | 4.26243 |
| 1988 | 4.28461 |
| 1987 | 4.30413 |
| 1986 | 4.31385 |
| 1985 | 4.33631 |
| 1984 | 4.37736 |
| 1983 | 4.44219 |
| 1982 | 4.52596 |
| 1981 | 4.61648 |
| 1980 | 4.70593 |
| 1979 | 4.79141 |
| 1978 | 4.86899 |
| 1977 | 4.93848 |
| 1976 | 5.00608 |
| 1975 | 5.07655 |
| 1974 | 5.14822 |
| 1973 | 5.21715 |
| 1972 | 5.28428 |
| 1971 | 5.35055 |
| 1970 | 5.41548 |
| 1969 | 5.47912 |
| 1968 | 5.54226 |
| 1967 | 5.60411 |
| 1966 | 5.66376 |
| 1965 | 5.72113 |
| 1964 | 5.77737 |
| 1963 | 5.83183 |
| 1962 | 5.88471 |
| 1961 | 5.93612 |
| 1960 | 5.98446 |