| 年份 | 塞拉利昂 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 21.9451 |
| 2020 | 21.9451 |
| 2019 | 21.9451 |
| 2018 | 21.9451 |
| 2017 | 21.9451 |
| 2016 | 21.9451 |
| 2015 | 21.9451 |
| 2014 | 21.9451 |
| 2013 | 21.9403 |
| 2012 | 20.3886 |
| 2011 | 22.896 |
| 2010 | 21.895 |
| 2009 | 20.2406 |
| 2008 | 19.0112 |
| 2007 | 17.785 |
| 2006 | 23.412 |
| 2005 | 20.3937 |
| 2004 | 19.9187 |
| 2003 | 17.1331 |
| 2002 | 12.6085 |
| 2001 | 9.44195 |
| 2000 | 6.78858 |
| 1999 | 6.70546 |
| 1998 | 6.70546 |
| 1997 | 6.70546 |
| 1996 | 6.71931 |
| 1995 | 6.71931 |
| 1994 | 6.71931 |
| 1993 | 6.73317 |
| 1992 | 6.73317 |
| 1991 | 6.73317 |
| 1990 | 6.73317 |
| 1989 | 6.73317 |
| 1988 | 6.73317 |
| 1987 | 6.71931 |
| 1986 | 6.65004 |
| 1985 | 6.58077 |
| 1984 | 6.5115 |
| 1983 | 6.44223 |
| 1982 | 6.37296 |
| 1981 | 6.30369 |
| 1980 | 6.23441 |
| 1979 | 6.16514 |
| 1978 | 6.09587 |
| 1977 | 6.0266 |
| 1976 | 5.95733 |
| 1975 | 5.88806 |
| 1974 | 5.81879 |
| 1973 | 5.74952 |
| 1972 | 5.68024 |
| 1971 | 5.61097 |
| 1970 | 5.5417 |
| 1969 | 5.47243 |
| 1968 | 5.40316 |
| 1967 | 5.33389 |
| 1966 | 5.26462 |
| 1965 | 5.19534 |
| 1964 | 5.12607 |
| 1963 | 5.0568 |
| 1962 | 4.98753 |
| 1961 | 4.91826 |
| 1960 | - |