| 年份 | 加蓬 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 0.138819 |
| 2020 | 0.141762 |
| 2019 | 0.144909 |
| 2018 | 0.148266 |
| 2017 | 0.151854 |
| 2016 | 0.155785 |
| 2015 | 0.160216 |
| 2014 | 0.165238 |
| 2013 | 0.170852 |
| 2012 | 0.176947 |
| 2011 | 0.183357 |
| 2010 | 0.189936 |
| 2009 | 0.196548 |
| 2008 | 0.203128 |
| 2007 | 0.209708 |
| 2006 | 0.216301 |
| 2005 | 0.222854 |
| 2004 | 0.22934 |
| 2003 | 0.235781 |
| 2002 | 0.242231 |
| 2001 | 0.248739 |
| 2000 | 0.255315 |
| 1999 | 0.261935 |
| 1998 | 0.268632 |
| 1997 | 0.275469 |
| 1996 | 0.282461 |
| 1995 | 0.289671 |
| 1994 | 0.291694 |
| 1993 | 0.297544 |
| 1992 | 0.30363 |
| 1991 | 0.309903 |
| 1990 | 0.316369 |
| 1989 | 0.32305 |
| 1988 | 0.329943 |
| 1987 | 0.337011 |
| 1986 | 0.344185 |
| 1985 | 0.351438 |
| 1984 | 0.358764 |
| 1983 | 0.36617 |
| 1982 | 0.373614 |
| 1981 | 0.381062 |
| 1980 | 0.388478 |
| 1979 | 0.395788 |
| 1978 | 0.403013 |
| 1977 | 0.392845 |
| 1976 | 0.380161 |
| 1975 | 0.349745 |
| 1974 | 0.339024 |
| 1973 | 0.330559 |
| 1972 | 0.321394 |
| 1971 | 0.311632 |
| 1970 | 0.301411 |
| 1969 | 0.290783 |
| 1968 | 0.278935 |
| 1967 | 0.265752 |
| 1966 | 0.251913 |
| 1965 | 0.237428 |
| 1964 | 0.222292 |
| 1963 | 0.206537 |
| 1962 | 0.190203 |
| 1961 | 0.173301 |
| 1960 | - |