| 年份 | 塞拉利昂 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 8.82423 |
| 2020 | 8.2256 |
| 2019 | 7.47322 |
| 2018 | 7.69317 |
| 2017 | 11.2707 |
| 2016 | 11.877 |
| 2015 | 9.81429 |
| 2014 | 7.74811 |
| 2013 | 7.04128 |
| 2012 | 8.76222 |
| 2011 | 9.75175 |
| 2010 | 9.74027 |
| 2009 | 11.7685 |
| 2008 | 11.0196 |
| 2007 | 11.0139 |
| 2006 | 8.3979 |
| 2005 | 9.89574 |
| 2004 | 11.1 |
| 2003 | 12.8768 |
| 2002 | 8.43552 |
| 2001 | 8.05231 |
| 2000 | 14.2567 |
| 1999 | 13.3683 |
| 1998 | 21.6581 |
| 1997 | 16.0969 |
| 1996 | 14.566 |
| 1995 | 15.8876 |
| 1994 | 9.68444 |
| 1993 | 9.79386 |
| 1992 | 13.8746 |
| 1991 | 12.0484 |
| 1990 | 15.0341 |
| 1989 | 8.78996 |
| 1988 | 7.75996 |
| 1987 | 10.6989 |
| 1986 | 16.1198 |
| 1985 | 5.75366 |
| 1984 | 6.19437 |
| 1983 | 7.5878 |
| 1982 | 8.97394 |
| 1981 | 7.61818 |
| 1980 | 9.01033 |
| 1979 | 7.58987 |
| 1978 | 9.6289 |
| 1977 | 12.8447 |
| 1976 | 8.19893 |
| 1975 | 8.0153 |
| 1974 | 6.23354 |
| 1973 | 6.48644 |
| 1972 | 4.79231 |
| 1971 | 4.73368 |
| 1970 | 5.42059 |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |