| 年份 | 加蓬  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 2.90804 | 
| 2021 | 1.52682 | 
| 2020 | -1.83776 | 
| 2019 | 3.92081 | 
| 2018 | 0.837917 | 
| 2017 | 0.472642 | 
| 2016 | 2.09144 | 
| 2015 | 3.8789 | 
| 2014 | 4.31496 | 
| 2013 | 5.6387 | 
| 2012 | 5.25108 | 
| 2011 | 7.09175 | 
| 2010 | 7.08989 | 
| 2009 | 0.130331 | 
| 2008 | -3.30843 | 
| 2007 | 6.00811 | 
| 2006 | -2.80658 | 
| 2005 | 2.6762 | 
| 2004 | 0.689543 | 
| 2003 | 2.24733 | 
| 2002 | -0.249033 | 
| 2001 | 2.13523 | 
| 2000 | -1.88297 | 
| 1999 | -8.93262 | 
| 1998 | 3.47783 | 
| 1997 | 5.73837 | 
| 1996 | 3.62505 | 
| 1995 | 4.97385 | 
| 1994 | 3.71275 | 
| 1993 | 3.94655 | 
| 1992 | -3.09015 | 
| 1991 | 6.1125 | 
| 1990 | 5.19224 | 
| 1989 | 8.54531 | 
| 1988 | 12.8454 | 
| 1987 | -17.146 | 
| 1986 | -0.803598 | 
| 1985 | -2.33295 | 
| 1984 | 7.5089 | 
| 1983 | 5.60824 | 
| 1982 | -3.09752 | 
| 1981 | 5.09533 | 
| 1980 | 2.55294 | 
| 1979 | 0.474405 | 
| 1978 | -24.0492 | 
| 1977 | -12.5821 | 
| 1976 | 35.6253 | 
| 1975 | 19.1901 | 
| 1974 | 39.4871 | 
| 1973 | 10.1824 | 
| 1972 | 11.337 | 
| 1971 | 10.2587 | 
| 1970 | 8.67934 | 
| 1969 | 8.08291 | 
| 1968 | 2.5088 | 
| 1967 | 4.11515 | 
| 1966 | 4.508 | 
| 1965 | 8.33334 | 
| 1964 | 4.55445 | 
| 1963 | 6.09244 | 
| 1962 | 7.44921 | 
| 1961 | 14.7668 | 
| 1960 | - |