| 年份 | 冈比亚 |
|---|---|
| 2023 | - |
| 2022 | 15.6372 |
| 2021 | 15.8863 |
| 2020 | 16.1718 |
| 2019 | 16.4923 |
| 2018 | 16.8336 |
| 2017 | 17.1787 |
| 2016 | 17.5065 |
| 2015 | 17.7955 |
| 2014 | 18.0365 |
| 2013 | 18.2323 |
| 2012 | 18.3881 |
| 2011 | 18.5161 |
| 2010 | 18.6071 |
| 2009 | 18.6597 |
| 2008 | 18.693 |
| 2007 | 18.6841 |
| 2006 | 18.6362 |
| 2005 | 18.5937 |
| 2004 | 18.5645 |
| 2003 | 18.5459 |
| 2002 | 18.5664 |
| 2001 | 18.6108 |
| 2000 | 18.6503 |
| 1999 | 18.7002 |
| 1998 | 18.7583 |
| 1997 | 18.8381 |
| 1996 | 18.9403 |
| 1995 | 19.0364 |
| 1994 | 19.1039 |
| 1993 | 19.1386 |
| 1992 | 19.1571 |
| 1991 | 19.173 |
| 1990 | 19.1826 |
| 1989 | 19.1852 |
| 1988 | 19.1743 |
| 1987 | 19.1533 |
| 1986 | 19.1365 |
| 1985 | 19.1316 |
| 1984 | 19.1416 |
| 1983 | 19.108 |
| 1982 | 19.0291 |
| 1981 | 18.9468 |
| 1980 | 18.8696 |
| 1979 | 18.8088 |
| 1978 | 18.7467 |
| 1977 | 18.6676 |
| 1976 | 18.5604 |
| 1975 | 18.4297 |
| 1974 | 18.2833 |
| 1973 | 18.1811 |
| 1972 | 18.1415 |
| 1971 | 18.1229 |
| 1970 | 18.1276 |
| 1969 | 18.1471 |
| 1968 | 18.1754 |
| 1967 | 18.2086 |
| 1966 | 18.2357 |
| 1965 | 18.2444 |
| 1964 | 18.2293 |
| 1963 | 18.1935 |
| 1962 | 18.1363 |
| 1961 | 18.0598 |
| 1960 | 17.9698 |