| 年份 | 加蓬 |
|---|---|
| 2023 | - |
| 2022 | 3.56685 |
| 2021 | 3.49714 |
| 2020 | 3.43439 |
| 2019 | 3.37836 |
| 2018 | 3.32919 |
| 2017 | 3.28554 |
| 2016 | 3.24691 |
| 2015 | 3.21291 |
| 2014 | 3.18374 |
| 2013 | 3.15765 |
| 2012 | 3.13305 |
| 2011 | 3.11213 |
| 2010 | 3.096 |
| 2009 | 3.08439 |
| 2008 | 3.07837 |
| 2007 | 3.07841 |
| 2006 | 3.08353 |
| 2005 | 3.0931 |
| 2004 | 3.09691 |
| 2003 | 3.08827 |
| 2002 | 3.08182 |
| 2001 | 3.07937 |
| 2000 | 3.07105 |
| 1999 | 3.06714 |
| 1998 | 3.07489 |
| 1997 | 3.07997 |
| 1996 | 3.08168 |
| 1995 | 3.09254 |
| 1994 | 3.11761 |
| 1993 | 3.1597 |
| 1992 | 3.21549 |
| 1991 | 3.27651 |
| 1990 | 3.3389 |
| 1989 | 3.4019 |
| 1988 | 3.46209 |
| 1987 | 3.5192 |
| 1986 | 3.57878 |
| 1985 | 3.64299 |
| 1984 | 3.70964 |
| 1983 | 3.77742 |
| 1982 | 3.84614 |
| 1981 | 3.91592 |
| 1980 | 3.98646 |
| 1979 | 4.05742 |
| 1978 | 4.12865 |
| 1977 | 4.20037 |
| 1976 | 4.27217 |
| 1975 | 4.34223 |
| 1974 | 4.4102 |
| 1973 | 4.47699 |
| 1972 | 4.5423 |
| 1971 | 4.60675 |
| 1970 | 4.67106 |
| 1969 | 4.73604 |
| 1968 | 4.79556 |
| 1967 | 4.8472 |
| 1966 | 4.89641 |
| 1965 | 4.94285 |
| 1964 | 4.98663 |
| 1963 | 5.0278 |
| 1962 | 5.06664 |
| 1961 | 5.10328 |
| 1960 | 5.13745 |