| 年份 | 冈比亚 |
|---|---|
| 2023 | - |
| 2022 | 3.47733 |
| 2021 | 3.45776 |
| 2020 | 3.43765 |
| 2019 | 3.41718 |
| 2018 | 3.39672 |
| 2017 | 3.37824 |
| 2016 | 3.36233 |
| 2015 | 3.34759 |
| 2014 | 3.33204 |
| 2013 | 3.31341 |
| 2012 | 3.28937 |
| 2011 | 3.25783 |
| 2010 | 3.21643 |
| 2009 | 3.16412 |
| 2008 | 3.10191 |
| 2007 | 3.03149 |
| 2006 | 2.95533 |
| 2005 | 2.87595 |
| 2004 | 2.79591 |
| 2003 | 2.71819 |
| 2002 | 2.65893 |
| 2001 | 2.62037 |
| 2000 | 2.58891 |
| 1999 | 2.56317 |
| 1998 | 2.56405 |
| 1997 | 2.62078 |
| 1996 | 2.72588 |
| 1995 | 2.85805 |
| 1994 | 3.00346 |
| 1993 | 3.1259 |
| 1992 | 3.19656 |
| 1991 | 3.23047 |
| 1990 | 3.24967 |
| 1989 | 3.26637 |
| 1988 | 3.28742 |
| 1987 | 3.31799 |
| 1986 | 3.36197 |
| 1985 | 3.41838 |
| 1984 | 3.48422 |
| 1983 | 3.581 |
| 1982 | 3.7027 |
| 1981 | 3.81865 |
| 1980 | 3.92531 |
| 1979 | 4.02129 |
| 1978 | 4.10303 |
| 1977 | 4.16803 |
| 1976 | 4.22399 |
| 1975 | 4.27617 |
| 1974 | 4.32374 |
| 1973 | 4.35225 |
| 1972 | 4.3586 |
| 1971 | 4.34433 |
| 1970 | 4.29819 |
| 1969 | 4.22177 |
| 1968 | 4.11277 |
| 1967 | 3.98081 |
| 1966 | 3.85938 |
| 1965 | 3.77089 |
| 1964 | 3.71333 |
| 1963 | 3.68871 |
| 1962 | 3.69511 |
| 1961 | 3.70704 |
| 1960 | 3.70742 |