| 年份 | 加蓬 |
|---|---|
| 2023 | - |
| 2022 | -1.29054 |
| 2021 | -1.29964 |
| 2020 | -1.28557 |
| 2019 | -1.26282 |
| 2018 | -1.24792 |
| 2017 | -1.15715 |
| 2016 | -0.97768 |
| 2015 | -0.768321 |
| 2014 | -0.589071 |
| 2013 | -0.478548 |
| 2012 | -0.416656 |
| 2011 | -0.415735 |
| 2010 | -0.495245 |
| 2009 | -0.592353 |
| 2008 | -0.680588 |
| 2007 | -0.735889 |
| 2006 | -0.819646 |
| 2005 | -0.900154 |
| 2004 | -0.973459 |
| 2003 | -1.01116 |
| 2002 | -1.02396 |
| 2001 | -1.02586 |
| 2000 | -1.05299 |
| 1999 | -1.04566 |
| 1998 | -1.01934 |
| 1997 | -0.987637 |
| 1996 | -0.939438 |
| 1995 | -0.85709 |
| 1994 | -0.859888 |
| 1993 | -1.86762 |
| 1992 | -1.77306 |
| 1991 | -1.66243 |
| 1990 | -1.55023 |
| 1989 | -1.43477 |
| 1988 | -1.34505 |
| 1987 | -0.852222 |
| 1986 | -0.795967 |
| 1985 | -0.736058 |
| 1984 | -0.685073 |
| 1983 | -0.6284 |
| 1982 | -0.588793 |
| 1981 | -2.63798 |
| 1980 | -2.49119 |
| 1979 | -2.31307 |
| 1978 | -2.15009 |
| 1977 | -1.9985 |
| 1976 | -1.87716 |
| 1975 | -1.73949 |
| 1974 | -1.60116 |
| 1973 | -1.4417 |
| 1972 | -1.26954 |
| 1971 | -1.03814 |
| 1970 | -0.433199 |
| 1969 | -0.510886 |
| 1968 | -0.670039 |
| 1967 | -0.594547 |
| 1966 | -0.528277 |
| 1965 | -0.476152 |
| 1964 | -0.429978 |
| 1963 | -0.374454 |
| 1962 | -0.330156 |
| 1961 | 0.0252309 |
| 1960 | - |