| 年份 | 加蓬  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 0.681047 | 
| 2021 | 0.695397 | 
| 2020 | 0.706963 | 
| 2019 | 0.714271 | 
| 2018 | 0.720934 | 
| 2017 | 0.728162 | 
| 2016 | 0.7365 | 
| 2015 | 0.74631 | 
| 2014 | 0.757581 | 
| 2013 | 0.769453 | 
| 2012 | 0.782002 | 
| 2011 | 0.795149 | 
| 2010 | 0.808308 | 
| 2009 | 0.821539 | 
| 2008 | 0.834879 | 
| 2007 | 0.847693 | 
| 2006 | 0.860079 | 
| 2005 | 0.871871 | 
| 2004 | 0.882391 | 
| 2003 | 0.892247 | 
| 2002 | 0.902171 | 
| 2001 | 0.912551 | 
| 2000 | 0.922988 | 
| 1999 | 0.933139 | 
| 1998 | 0.943323 | 
| 1997 | 0.953215 | 
| 1996 | 0.962497 | 
| 1995 | 0.972169 | 
| 1994 | 0.98221 | 
| 1993 | 0.992215 | 
| 1992 | 1.00287 | 
| 1991 | 1.01372 | 
| 1990 | 1.02472 | 
| 1989 | 1.03608 | 
| 1988 | 1.04778 | 
| 1987 | 1.05958 | 
| 1986 | 1.07115 | 
| 1985 | 1.08283 | 
| 1984 | 1.09522 | 
| 1983 | 1.10766 | 
| 1982 | 1.12005 | 
| 1981 | 1.13119 | 
| 1980 | 1.14012 | 
| 1979 | 1.1478 | 
| 1978 | 1.15402 | 
| 1977 | 1.1597 | 
| 1976 | 1.16379 | 
| 1975 | 1.16703 | 
| 1974 | 1.17047 | 
| 1973 | 1.17309 | 
| 1972 | 1.17462 | 
| 1971 | 1.17605 | 
| 1970 | 1.17771 | 
| 1969 | 1.17927 | 
| 1968 | 1.17828 | 
| 1967 | 1.1733 | 
| 1966 | 1.16803 | 
| 1965 | 1.16248 | 
| 1964 | 1.15501 | 
| 1963 | 1.14522 | 
| 1962 | 1.1337 | 
| 1961 | 1.12159 | 
| 1960 | 1.10848 |