| 年份 | 加蓬 |
|---|---|
| 2023 | - |
| 2022 | 12.9904 |
| 2021 | 13.2456 |
| 2020 | 13.5109 |
| 2019 | 13.7662 |
| 2018 | 13.9974 |
| 2017 | 14.1989 |
| 2016 | 14.3727 |
| 2015 | 14.5085 |
| 2014 | 14.5896 |
| 2013 | 14.6154 |
| 2012 | 14.5967 |
| 2011 | 14.5414 |
| 2010 | 14.4714 |
| 2009 | 14.4179 |
| 2008 | 14.3938 |
| 2007 | 14.3973 |
| 2006 | 14.4191 |
| 2005 | 14.4559 |
| 2004 | 14.4988 |
| 2003 | 14.5488 |
| 2002 | 14.6058 |
| 2001 | 14.6663 |
| 2000 | 14.7462 |
| 1999 | 14.8709 |
| 1998 | 15.0457 |
| 1997 | 15.2513 |
| 1996 | 15.471 |
| 1995 | 15.6875 |
| 1994 | 15.8816 |
| 1993 | 16.045 |
| 1992 | 16.1785 |
| 1991 | 16.2834 |
| 1990 | 16.3605 |
| 1989 | 16.4125 |
| 1988 | 16.4383 |
| 1987 | 16.4392 |
| 1986 | 16.425 |
| 1985 | 16.3887 |
| 1984 | 16.3155 |
| 1983 | 16.2117 |
| 1982 | 16.0837 |
| 1981 | 15.9309 |
| 1980 | 15.7642 |
| 1979 | 15.5948 |
| 1978 | 15.4236 |
| 1977 | 15.2539 |
| 1976 | 15.0841 |
| 1975 | 14.9072 |
| 1974 | 14.7217 |
| 1973 | 14.5273 |
| 1972 | 14.3253 |
| 1971 | 14.1318 |
| 1970 | 13.9599 |
| 1969 | 13.8092 |
| 1968 | 13.6539 |
| 1967 | 13.4853 |
| 1966 | 13.3138 |
| 1965 | 13.1377 |
| 1964 | 12.9587 |
| 1963 | 12.7707 |
| 1962 | 12.5723 |
| 1961 | 12.3758 |
| 1960 | 12.1918 |