| 年份 | 加蓬  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 2.78469 | 
| 2021 | 2.74368 | 
| 2020 | 2.70434 | 
| 2019 | 2.66737 | 
| 2018 | 2.63254 | 
| 2017 | 2.59893 | 
| 2016 | 2.56991 | 
| 2015 | 2.54768 | 
| 2014 | 2.53269 | 
| 2013 | 2.52624 | 
| 2012 | 2.52708 | 
| 2011 | 2.53405 | 
| 2010 | 2.54547 | 
| 2009 | 2.55213 | 
| 2008 | 2.54891 | 
| 2007 | 2.5471 | 
| 2006 | 2.54798 | 
| 2005 | 2.54365 | 
| 2004 | 2.54247 | 
| 2003 | 2.54983 | 
| 2002 | 2.55473 | 
| 2001 | 2.55688 | 
| 2000 | 2.56593 | 
| 1999 | 2.58546 | 
| 1998 | 2.61789 | 
| 1997 | 2.66044 | 
| 1996 | 2.7064 | 
| 1995 | 2.75346 | 
| 1994 | 2.80155 | 
| 1993 | 2.84832 | 
| 1992 | 2.89395 | 
| 1991 | 2.94275 | 
| 1990 | 2.99591 | 
| 1989 | 3.05161 | 
| 1988 | 3.10904 | 
| 1987 | 3.16804 | 
| 1986 | 3.22824 | 
| 1985 | 3.28996 | 
| 1984 | 3.35372 | 
| 1983 | 3.41926 | 
| 1982 | 3.48636 | 
| 1981 | 3.55428 | 
| 1980 | 3.62154 | 
| 1979 | 3.68804 | 
| 1978 | 3.7536 | 
| 1977 | 3.81857 | 
| 1976 | 3.88265 | 
| 1975 | 3.94502 | 
| 1974 | 4.00581 | 
| 1973 | 4.06482 | 
| 1972 | 4.12182 | 
| 1971 | 4.17757 | 
| 1970 | 4.23437 | 
| 1969 | 4.29314 | 
| 1968 | 4.34516 | 
| 1967 | 4.38855 | 
| 1966 | 4.43053 | 
| 1965 | 4.47066 | 
| 1964 | 4.5089 | 
| 1963 | 4.54517 | 
| 1962 | 4.57935 | 
| 1961 | 4.61066 | 
| 1960 | 4.63919 |