| 年份 | 塞拉利昂 |
|---|---|
| 2023 | - |
| 2022 | 12.2498 |
| 2021 | 12.3079 |
| 2020 | 12.3521 |
| 2019 | 12.3834 |
| 2018 | 12.4263 |
| 2017 | 12.4934 |
| 2016 | 12.5618 |
| 2015 | 12.6222 |
| 2014 | 12.6762 |
| 2013 | 12.697 |
| 2012 | 12.6758 |
| 2011 | 12.6394 |
| 2010 | 12.5976 |
| 2009 | 12.5561 |
| 2008 | 12.5218 |
| 2007 | 12.4851 |
| 2006 | 12.4404 |
| 2005 | 12.3948 |
| 2004 | 12.3495 |
| 2003 | 12.3124 |
| 2002 | 12.3008 |
| 2001 | 12.3062 |
| 2000 | 12.3136 |
| 1999 | 12.3002 |
| 1998 | 12.2666 |
| 1997 | 12.2306 |
| 1996 | 12.1907 |
| 1995 | 12.1447 |
| 1994 | 12.0993 |
| 1993 | 12.0681 |
| 1992 | 12.0447 |
| 1991 | 12.0211 |
| 1990 | 12.004 |
| 1989 | 11.9886 |
| 1988 | 11.9618 |
| 1987 | 11.9291 |
| 1986 | 11.8993 |
| 1985 | 11.865 |
| 1984 | 11.8268 |
| 1983 | 11.796 |
| 1982 | 11.7757 |
| 1981 | 11.7543 |
| 1980 | 11.728 |
| 1979 | 11.7003 |
| 1978 | 11.6661 |
| 1977 | 11.6129 |
| 1976 | 11.5456 |
| 1975 | 11.4703 |
| 1974 | 11.3788 |
| 1973 | 11.2746 |
| 1972 | 11.169 |
| 1971 | 11.0632 |
| 1970 | 10.9556 |
| 1969 | 10.8481 |
| 1968 | 10.7368 |
| 1967 | 10.6288 |
| 1966 | 10.5336 |
| 1965 | 10.4512 |
| 1964 | 10.3391 |
| 1963 | 10.25 |
| 1962 | 10.3247 |
| 1961 | 10.5031 |
| 1960 | 10.6921 |