| 年份 | 冈比亚 |
|---|---|
| 2023 | - |
| 2022 | 0.298328 |
| 2021 | 0.309797 |
| 2020 | 0.321984 |
| 2019 | 0.329661 |
| 2018 | 0.334248 |
| 2017 | 0.340246 |
| 2016 | 0.347135 |
| 2015 | 0.355079 |
| 2014 | 0.364246 |
| 2013 | 0.373662 |
| 2012 | 0.383177 |
| 2011 | 0.393907 |
| 2010 | 0.406651 |
| 2009 | 0.421111 |
| 2008 | 0.436857 |
| 2007 | 0.45476 |
| 2006 | 0.475361 |
| 2005 | 0.498786 |
| 2004 | 0.524996 |
| 2003 | 0.553816 |
| 2002 | 0.56768 |
| 2001 | 0.565299 |
| 2000 | 0.564195 |
| 1999 | 0.564403 |
| 1998 | 0.566398 |
| 1997 | 0.570583 |
| 1996 | 0.575656 |
| 1995 | 0.580725 |
| 1994 | 0.5931 |
| 1993 | 0.618209 |
| 1992 | 0.639581 |
| 1991 | 0.647324 |
| 1990 | 0.651215 |
| 1989 | 0.655236 |
| 1988 | 0.658853 |
| 1987 | 0.66305 |
| 1986 | 0.669449 |
| 1985 | 0.677315 |
| 1984 | 0.686191 |
| 1983 | 0.667993 |
| 1982 | 0.622764 |
| 1981 | 0.579628 |
| 1980 | 0.533947 |
| 1979 | 0.484353 |
| 1978 | 0.433602 |
| 1977 | 0.382881 |
| 1976 | 0.334266 |
| 1975 | 0.28848 |
| 1974 | 0.243514 |
| 1973 | 0.219469 |
| 1972 | 0.216567 |
| 1971 | 0.21321 |
| 1970 | 0.210737 |
| 1969 | 0.207896 |
| 1968 | 0.203854 |
| 1967 | 0.19998 |
| 1966 | 0.196039 |
| 1965 | 0.192739 |
| 1964 | 0.190014 |
| 1963 | 0.186992 |
| 1962 | 0.183171 |
| 1961 | 0.179465 |
| 1960 | 0.175891 |