| 年份 | 冈比亚 |
|---|---|
| 2023 | - |
| 2022 | 0.390981 |
| 2021 | 0.402812 |
| 2020 | 0.414038 |
| 2019 | 0.421548 |
| 2018 | 0.428728 |
| 2017 | 0.437818 |
| 2016 | 0.447363 |
| 2015 | 0.457837 |
| 2014 | 0.469187 |
| 2013 | 0.48111 |
| 2012 | 0.493742 |
| 2011 | 0.507699 |
| 2010 | 0.524362 |
| 2009 | 0.543126 |
| 2008 | 0.563326 |
| 2007 | 0.585644 |
| 2006 | 0.610215 |
| 2005 | 0.63694 |
| 2004 | 0.665552 |
| 2003 | 0.696205 |
| 2002 | 0.708475 |
| 2001 | 0.701473 |
| 2000 | 0.69666 |
| 1999 | 0.693398 |
| 1998 | 0.692123 |
| 1997 | 0.693832 |
| 1996 | 0.696415 |
| 1995 | 0.698977 |
| 1994 | 0.709235 |
| 1993 | 0.732167 |
| 1992 | 0.749922 |
| 1991 | 0.751693 |
| 1990 | 0.747857 |
| 1989 | 0.74366 |
| 1988 | 0.739769 |
| 1987 | 0.735781 |
| 1986 | 0.731816 |
| 1985 | 0.728726 |
| 1984 | 0.726689 |
| 1983 | 0.705615 |
| 1982 | 0.667068 |
| 1981 | 0.629407 |
| 1980 | 0.588027 |
| 1979 | 0.543797 |
| 1978 | 0.498405 |
| 1977 | 0.452807 |
| 1976 | 0.407825 |
| 1975 | 0.363897 |
| 1974 | 0.320065 |
| 1973 | 0.295864 |
| 1972 | 0.29206 |
| 1971 | 0.288559 |
| 1970 | 0.285228 |
| 1969 | 0.281589 |
| 1968 | 0.276865 |
| 1967 | 0.272182 |
| 1966 | 0.267903 |
| 1965 | 0.263944 |
| 1964 | 0.260251 |
| 1963 | 0.256599 |
| 1962 | 0.252996 |
| 1961 | 0.248494 |
| 1960 | 0.243522 |