| 年份 | 加蓬 |
|---|---|
| 2023 | - |
| 2022 | 2.14412 |
| 2021 | 2.11588 |
| 2020 | 2.0901 |
| 2019 | 2.06721 |
| 2018 | 2.05007 |
| 2017 | 2.03823 |
| 2016 | 2.03236 |
| 2015 | 2.03283 |
| 2014 | 2.03283 |
| 2013 | 2.02863 |
| 2012 | 2.02755 |
| 2011 | 2.03037 |
| 2010 | 2.03026 |
| 2009 | 2.03281 |
| 2008 | 2.04224 |
| 2007 | 2.0492 |
| 2006 | 2.05371 |
| 2005 | 2.06355 |
| 2004 | 2.08123 |
| 2003 | 2.10816 |
| 2002 | 2.14285 |
| 2001 | 2.18062 |
| 2000 | 2.21881 |
| 1999 | 2.25684 |
| 1998 | 2.29266 |
| 1997 | 2.32638 |
| 1996 | 2.3619 |
| 1995 | 2.40061 |
| 1994 | 2.44212 |
| 1993 | 2.48621 |
| 1992 | 2.53254 |
| 1991 | 2.58078 |
| 1990 | 2.6309 |
| 1989 | 2.68283 |
| 1988 | 2.73656 |
| 1987 | 2.7919 |
| 1986 | 2.84842 |
| 1985 | 2.9057 |
| 1984 | 2.96347 |
| 1983 | 3.02184 |
| 1982 | 3.08051 |
| 1981 | 3.13945 |
| 1980 | 3.19785 |
| 1979 | 3.25527 |
| 1978 | 3.31207 |
| 1977 | 3.36794 |
| 1976 | 3.42194 |
| 1975 | 3.47426 |
| 1974 | 3.52459 |
| 1973 | 3.57265 |
| 1972 | 3.6197 |
| 1971 | 3.66703 |
| 1970 | 3.71531 |
| 1969 | 3.76546 |
| 1968 | 3.81007 |
| 1967 | 3.8463 |
| 1966 | 3.88014 |
| 1965 | 3.91199 |
| 1964 | 3.94166 |
| 1963 | 3.97017 |
| 1962 | 3.99778 |
| 1961 | 4.02317 |
| 1960 | 4.04613 |