| 年份 | 塞拉利昂 |
|---|---|
| 2023 | - |
| 2022 | 11.6796 |
| 2021 | 7.32471 |
| 2020 | 8.08971 |
| 2019 | 8.56637 |
| 2018 | 9.24056 |
| 2017 | 10.4652 |
| 2016 | 11.8328 |
| 2015 | 10.1655 |
| 2014 | 7.14557 |
| 2013 | 8.70579 |
| 2012 | 10.2855 |
| 2011 | 10.1085 |
| 2010 | 10.3992 |
| 2009 | 10.6647 |
| 2008 | 9.86454 |
| 2007 | 8.77582 |
| 2006 | 10.2237 |
| 2005 | 10.0286 |
| 2004 | 10.4962 |
| 2003 | 11.9658 |
| 2002 | 14.1168 |
| 2001 | 13.2096 |
| 2000 | 14.3331 |
| 1999 | 11.4651 |
| 1998 | 8.93119 |
| 1997 | 9.00695 |
| 1996 | 10.8706 |
| 1995 | 8.80007 |
| 1994 | 10.7 |
| 1993 | 10.0999 |
| 1992 | 8.50023 |
| 1991 | 9.74332 |
| 1990 | 7.79989 |
| 1989 | 7.28263 |
| 1988 | 6.70456 |
| 1987 | 9.37166 |
| 1986 | 6.30832 |
| 1985 | 7.91294 |
| 1984 | 6.93167 |
| 1983 | 8.88012 |
| 1982 | 8.57588 |
| 1981 | 6.9726 |
| 1980 | 8.4206 |
| 1979 | 8.14446 |
| 1978 | 7.63479 |
| 1977 | 8.97717 |
| 1976 | 8.91207 |
| 1975 | 10.3398 |
| 1974 | 8.88538 |
| 1973 | 8.88019 |
| 1972 | 8.53305 |
| 1971 | 9.03612 |
| 1970 | 6.82304 |
| 1969 | 6.60647 |
| 1968 | 7.74874 |
| 1967 | 7.79889 |
| 1966 | 7.38255 |
| 1965 | 7.71328 |
| 1964 | 8.12575 |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |