| 年份 | 加蓬  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 0.532207 | 
| 2021 | 0.551278 | 
| 2020 | 0.568692 | 
| 2019 | 0.579207 | 
| 2018 | 0.585614 | 
| 2017 | 0.592692 | 
| 2016 | 0.600641 | 
| 2015 | 0.608558 | 
| 2014 | 0.616314 | 
| 2013 | 0.623581 | 
| 2012 | 0.630029 | 
| 2011 | 0.636196 | 
| 2010 | 0.642396 | 
| 2009 | 0.6485 | 
| 2008 | 0.654428 | 
| 2007 | 0.660048 | 
| 2006 | 0.665061 | 
| 2005 | 0.670374 | 
| 2004 | 0.675896 | 
| 2003 | 0.681223 | 
| 2002 | 0.687029 | 
| 2001 | 0.692926 | 
| 2000 | 0.698237 | 
| 1999 | 0.702988 | 
| 1998 | 0.70781 | 
| 1997 | 0.712786 | 
| 1996 | 0.717885 | 
| 1995 | 0.723925 | 
| 1994 | 0.731132 | 
| 1993 | 0.738667 | 
| 1992 | 0.746324 | 
| 1991 | 0.754227 | 
| 1990 | 0.762373 | 
| 1989 | 0.770602 | 
| 1988 | 0.778566 | 
| 1987 | 0.786566 | 
| 1986 | 0.794892 | 
| 1985 | 0.803502 | 
| 1984 | 0.811699 | 
| 1983 | 0.819483 | 
| 1982 | 0.827493 | 
| 1981 | 0.835531 | 
| 1980 | 0.842881 | 
| 1979 | 0.849389 | 
| 1978 | 0.85549 | 
| 1977 | 0.86057 | 
| 1976 | 0.864709 | 
| 1975 | 0.868093 | 
| 1974 | 0.870421 | 
| 1973 | 0.872408 | 
| 1972 | 0.87327 | 
| 1971 | 0.874109 | 
| 1970 | 0.874318 | 
| 1969 | 0.871465 | 
| 1968 | 0.867162 | 
| 1967 | 0.862893 | 
| 1966 | 0.857172 | 
| 1965 | 0.84997 | 
| 1964 | 0.841517 | 
| 1963 | 0.831694 | 
| 1962 | 0.821194 | 
| 1961 | 0.808961 | 
| 1960 | 0.795301 |