| 年份 | 加蓬 |
|---|---|
| 2023 | - |
| 2022 | 4.88674 |
| 2021 | 4.77461 |
| 2020 | 4.66478 |
| 2019 | 4.55881 |
| 2018 | 4.45782 |
| 2017 | 4.3618 |
| 2016 | 4.27343 |
| 2015 | 4.19419 |
| 2014 | 4.12352 |
| 2013 | 4.06042 |
| 2012 | 4.00389 |
| 2011 | 3.95238 |
| 2010 | 3.90387 |
| 2009 | 3.85776 |
| 2008 | 3.81186 |
| 2007 | 3.76511 |
| 2006 | 3.72145 |
| 2005 | 3.68428 |
| 2004 | 3.65423 |
| 2003 | 3.63258 |
| 2002 | 3.62026 |
| 2001 | 3.61545 |
| 2000 | 3.61702 |
| 1999 | 3.61765 |
| 1998 | 3.60604 |
| 1997 | 3.59767 |
| 1996 | 3.5981 |
| 1995 | 3.59291 |
| 1994 | 3.5901 |
| 1993 | 3.6024 |
| 1992 | 3.61345 |
| 1991 | 3.61817 |
| 1990 | 3.63467 |
| 1989 | 3.66777 |
| 1988 | 3.72212 |
| 1987 | 3.79329 |
| 1986 | 3.871 |
| 1985 | 3.94887 |
| 1984 | 4.02565 |
| 1983 | 4.09829 |
| 1982 | 4.16548 |
| 1981 | 4.23231 |
| 1980 | 4.30279 |
| 1979 | 4.3745 |
| 1978 | 4.44424 |
| 1977 | 4.51331 |
| 1976 | 4.58257 |
| 1975 | 4.6517 |
| 1974 | 4.71959 |
| 1973 | 4.78527 |
| 1972 | 4.84944 |
| 1971 | 4.91308 |
| 1970 | 4.97602 |
| 1969 | 5.03999 |
| 1968 | 5.10255 |
| 1967 | 5.1611 |
| 1966 | 5.21865 |
| 1965 | 5.27444 |
| 1964 | 5.32721 |
| 1963 | 5.3787 |
| 1962 | 5.42847 |
| 1961 | 5.47529 |
| 1960 | 5.51915 |