| 年份 | 塞拉利昂 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | - |
| 2020 | - |
| 2019 | - |
| 2018 | - |
| 2017 | - |
| 2016 | - |
| 2015 | - |
| 2014 | - |
| 2013 | - |
| 2012 | - |
| 2011 | - |
| 2010 | - |
| 2009 | - |
| 2008 | - |
| 2007 | - |
| 2006 | - |
| 2005 | - |
| 2004 | - |
| 2003 | - |
| 2002 | - |
| 2001 | - |
| 2000 | - |
| 1999 | - |
| 1998 | - |
| 1997 | 1.67355 |
| 1996 | 1.85567 |
| 1995 | 2.06186 |
| 1994 | 2.26804 |
| 1993 | 2.46914 |
| 1992 | 2.77778 |
| 1991 | 3.08642 |
| 1990 | 4.11523 |
| 1989 | 9.87654 |
| 1988 | 10.2881 |
| 1987 | 10.3093 |
| 1986 | 10 |
| 1985 | 9.89474 |
| 1984 | 9.3617 |
| 1983 | 8.8172 |
| 1982 | 8.26087 |
| 1981 | 7.58242 |
| 1980 | 7.04444 |
| 1979 | 2.47191 |
| 1978 | 2.5 |
| 1977 | 3.31034 |
| 1976 | 3.95349 |
| 1975 | 4 |
| 1974 | 3.92857 |
| 1973 | 3.85542 |
| 1972 | 3.78049 |
| 1971 | 3.7037 |
| 1970 | 3.625 |
| 1969 | 3.5443 |
| 1968 | 3.46154 |
| 1967 | 3.37662 |
| 1966 | 3.28947 |
| 1965 | 3.2 |
| 1964 | 3.10811 |
| 1963 | 3.0137 |
| 1962 | 2.91667 |
| 1961 | 2.8169 |
| 1960 | - |