| 年份 | 塞拉利昂  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 25.332 | 
| 2021 | 6.69151 | 
| 2020 | 10.915 | 
| 2019 | 7.70279 | 
| 2018 | 14.0106 | 
| 2017 | 8.956 | 
| 2016 | 5.85171 | 
| 2015 | 19.6403 | 
| 2014 | 1.79536 | 
| 2013 | 6.95915 | 
| 2012 | 12.0412 | 
| 2011 | 17.2951 | 
| 2010 | 17.4339 | 
| 2009 | 8.54807 | 
| 2008 | 9.21372 | 
| 2007 | 6.60202 | 
| 2006 | 12.493 | 
| 2005 | 16.6158 | 
| 2004 | 12.8265 | 
| 2003 | 13.1977 | 
| 2002 | -3.93417 | 
| 2001 | 71.352 | 
| 2000 | 3.28114 | 
| 1999 | 17.1939 | 
| 1998 | 23.7751 | 
| 1997 | 2.25277 | 
| 1996 | 29.5805 | 
| 1995 | 33.598 | 
| 1994 | 25.062 | 
| 1993 | 26.7363 | 
| 1992 | 82.0236 | 
| 1991 | 128.762 | 
| 1990 | 70.5916 | 
| 1989 | 61.4913 | 
| 1988 | 64.2882 | 
| 1987 | 165.677 | 
| 1986 | 78.5038 | 
| 1985 | 68.8897 | 
| 1984 | 39.7673 | 
| 1983 | 19.439 | 
| 1982 | 18.5016 | 
| 1981 | 8.69831 | 
| 1980 | -6.00873 | 
| 1979 | 11.5357 | 
| 1978 | 23.8501 | 
| 1977 | 19.7469 | 
| 1976 | 8.28421 | 
| 1975 | 8.86874 | 
| 1974 | 14.1609 | 
| 1973 | 23.2252 | 
| 1972 | 5.95028 | 
| 1971 | -6.92937 | 
| 1970 | -2.14247 | 
| 1969 | 14.165 | 
| 1968 | 6.66698 | 
| 1967 | -5.85071 | 
| 1966 | 2.73347 | 
| 1965 | 5.19692 | 
| 1964 | -8.99122E-6 | 
| 1963 | 2.34183E-5 | 
| 1962 | 1.00347E-5 | 
| 1961 | -2.51913E-5 | 
| 1960 | - |