| 年份 | 塞拉利昂 |
|---|---|
| 2023 | - |
| 2022 | 5.84982 |
| 2021 | 5.78001 |
| 2020 | 5.71061 |
| 2019 | 5.64474 |
| 2018 | 5.5845 |
| 2017 | 5.52763 |
| 2016 | 5.47293 |
| 2015 | 5.42306 |
| 2014 | 5.3786 |
| 2013 | 5.33482 |
| 2012 | 5.29344 |
| 2011 | 5.25883 |
| 2010 | 5.22671 |
| 2009 | 5.19649 |
| 2008 | 5.174 |
| 2007 | 5.16107 |
| 2006 | 5.15207 |
| 2005 | 5.14447 |
| 2004 | 5.13864 |
| 2003 | 5.13408 |
| 2002 | 5.12594 |
| 2001 | 5.11483 |
| 2000 | 5.10224 |
| 1999 | 5.08898 |
| 1998 | 5.0709 |
| 1997 | 5.04501 |
| 1996 | 5.017 |
| 1995 | 4.98818 |
| 1994 | 4.96022 |
| 1993 | 4.92907 |
| 1992 | 4.89688 |
| 1991 | 4.86908 |
| 1990 | 4.84845 |
| 1989 | 4.81192 |
| 1988 | 4.78241 |
| 1987 | 4.83114 |
| 1986 | 4.93203 |
| 1985 | 5.03785 |
| 1984 | 5.17718 |
| 1983 | 5.32024 |
| 1982 | 5.37661 |
| 1981 | 5.37207 |
| 1980 | 5.36501 |
| 1979 | 5.36106 |
| 1978 | 5.37385 |
| 1977 | 5.4043 |
| 1976 | 5.44392 |
| 1975 | 5.4845 |
| 1974 | 5.5231 |
| 1973 | 5.55712 |
| 1972 | 5.58585 |
| 1971 | 5.61389 |
| 1970 | 5.64347 |
| 1969 | 5.67226 |
| 1968 | 5.6974 |
| 1967 | 5.72145 |
| 1966 | 5.74776 |
| 1965 | 5.77712 |
| 1964 | 5.80829 |
| 1963 | 5.83857 |
| 1962 | 5.86599 |
| 1961 | 5.89018 |
| 1960 | 5.91136 |