| 年份 | 加蓬 |
|---|---|
| 2023 | - |
| 2022 | 9.09034 |
| 2021 | 9.02021 |
| 2020 | 8.9819 |
| 2019 | 8.97386 |
| 2018 | 8.99682 |
| 2017 | 9.05199 |
| 2016 | 9.13577 |
| 2015 | 9.25092 |
| 2014 | 9.40545 |
| 2013 | 9.5964 |
| 2012 | 9.80888 |
| 2011 | 10.0321 |
| 2010 | 10.2504 |
| 2009 | 10.4446 |
| 2008 | 10.6051 |
| 2007 | 10.7334 |
| 2006 | 10.83 |
| 2005 | 10.8943 |
| 2004 | 10.9293 |
| 2003 | 10.936 |
| 2002 | 10.9188 |
| 2001 | 10.8876 |
| 2000 | 10.8387 |
| 1999 | 10.7622 |
| 1998 | 10.6642 |
| 1997 | 10.5508 |
| 1996 | 10.4224 |
| 1995 | 10.2891 |
| 1994 | 10.1643 |
| 1993 | 10.0494 |
| 1992 | 9.94586 |
| 1991 | 9.8503 |
| 1990 | 9.75794 |
| 1989 | 9.66902 |
| 1988 | 9.58149 |
| 1987 | 9.49441 |
| 1986 | 9.41499 |
| 1985 | 9.34689 |
| 1984 | 9.2883 |
| 1983 | 9.23728 |
| 1982 | 9.1902 |
| 1981 | 9.14134 |
| 1980 | 9.08747 |
| 1979 | 9.02917 |
| 1978 | 8.9621 |
| 1977 | 8.88402 |
| 1976 | 8.80319 |
| 1975 | 8.72862 |
| 1974 | 8.66376 |
| 1973 | 8.61371 |
| 1972 | 8.58055 |
| 1971 | 8.55734 |
| 1970 | 8.5359 |
| 1969 | 8.49499 |
| 1968 | 8.41693 |
| 1967 | 8.34961 |
| 1966 | 8.30539 |
| 1965 | 8.24533 |
| 1964 | 8.18489 |
| 1963 | 8.15613 |
| 1962 | 8.12007 |
| 1961 | 8.06463 |
| 1960 | 8.03302 |