| 年份 | 冈比亚 |
|---|---|
| 2023 | - |
| 2022 | 1.53699 |
| 2021 | 1.49282 |
| 2020 | 1.44801 |
| 2019 | 1.3999 |
| 2018 | 1.35074 |
| 2017 | 1.30561 |
| 2016 | 1.26544 |
| 2015 | 1.23035 |
| 2014 | 1.19942 |
| 2013 | 1.18268 |
| 2012 | 1.19497 |
| 2011 | 1.23332 |
| 2010 | 1.28771 |
| 2009 | 1.35411 |
| 2008 | 1.41552 |
| 2007 | 1.4507 |
| 2006 | 1.46322 |
| 2005 | 1.46704 |
| 2004 | 1.46945 |
| 2003 | 1.47392 |
| 2002 | 1.48496 |
| 2001 | 1.50417 |
| 2000 | 1.52871 |
| 1999 | 1.55758 |
| 1998 | 1.5925 |
| 1997 | 1.63176 |
| 1996 | 1.67106 |
| 1995 | 1.70854 |
| 1994 | 1.74427 |
| 1993 | 1.77681 |
| 1992 | 1.80585 |
| 1991 | 1.83534 |
| 1990 | 1.86735 |
| 1989 | 1.90087 |
| 1988 | 1.93578 |
| 1987 | 1.9705 |
| 1986 | 1.99842 |
| 1985 | 2.01379 |
| 1984 | 2.01616 |
| 1983 | 1.99119 |
| 1982 | 1.9416 |
| 1981 | 1.89476 |
| 1980 | 1.85872 |
| 1979 | 1.83164 |
| 1978 | 1.81679 |
| 1977 | 1.81402 |
| 1976 | 1.81138 |
| 1975 | 1.80106 |
| 1974 | 1.78656 |
| 1973 | 1.77677 |
| 1972 | 1.77062 |
| 1971 | 1.76405 |
| 1970 | 1.75958 |
| 1969 | 1.75697 |
| 1968 | 1.75395 |
| 1967 | 1.75056 |
| 1966 | 1.74782 |
| 1965 | 1.74525 |
| 1964 | 1.74304 |
| 1963 | 1.74152 |
| 1962 | 1.73976 |
| 1961 | 1.73812 |
| 1960 | 1.73683 |