| 年份 | 塞拉利昂 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 2.66672 |
| 2020 | 19.1021 |
| 2019 | 17.1477 |
| 2018 | 15.7675 |
| 2017 | 16.441 |
| 2016 | 12.6648 |
| 2015 | 9.59521 |
| 2014 | 9.39646 |
| 2013 | 9.29728 |
| 2012 | 8.9748 |
| 2011 | - |
| 2010 | 9.88707 |
| 2009 | 6.20238 |
| 2008 | 5.88481 |
| 2007 | - |
| 2006 | 8.22963 |
| 2005 | - |
| 2004 | - |
| 2003 | 6.28814 |
| 2002 | 5.78379 |
| 2001 | 0.440193 |
| 2000 | 0.306122 |
| 1999 | 0.18595 |
| 1998 | 0.619835 |
| 1997 | 6.19835 |
| 1996 | 6.18557 |
| 1995 | 6.18557 |
| 1994 | 6.18557 |
| 1993 | 6.17284 |
| 1992 | 2.88066 |
| 1991 | 1.23457 |
| 1990 | 2.6749 |
| 1989 | 3.20988 |
| 1988 | 1.107 |
| 1987 | 1.03093 |
| 1986 | 8.33333 |
| 1985 | 7.57895 |
| 1984 | 2.76596 |
| 1983 | 2.56129 |
| 1982 | 0.782609 |
| 1981 | 7.27473 |
| 1980 | 3.98222 |
| 1979 | 6.03146 |
| 1978 | 2.55455 |
| 1977 | 3.25287 |
| 1976 | 2.96512 |
| 1975 | 6.86588 |
| 1974 | 2.40476 |
| 1973 | 5.4506 |
| 1972 | 2.99024 |
| 1971 | 2.80494 |
| 1970 | 6.305 |
| 1969 | 5.78987 |
| 1968 | 2.82051 |
| 1967 | 2.20779 |
| 1966 | 1.32105 |
| 1965 | 1.33333 |
| 1964 | 0.540541 |
| 1963 | 0.547945 |
| 1962 | 0.444444 |
| 1961 | 0.450704 |
| 1960 | - |