| 年份 | 塞拉利昂 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 31.36 |
| 2020 | 31.914 |
| 2019 | 32.549 |
| 2018 | 33.099 |
| 2017 | 33.568 |
| 2016 | 34.011 |
| 2015 | 34.558 |
| 2014 | 35.533 |
| 2013 | 36.473 |
| 2012 | 37.569 |
| 2011 | 38.282 |
| 2010 | 38.887 |
| 2009 | 39.658 |
| 2008 | 40.324 |
| 2007 | 40.796 |
| 2006 | 41.429 |
| 2005 | 41.71 |
| 2004 | 42.271 |
| 2003 | 43.486 |
| 2002 | 44.345 |
| 2001 | 44.706 |
| 2000 | 44.991 |
| 1999 | 45.185 |
| 1998 | 45.386 |
| 1997 | 45.511 |
| 1996 | 45.756 |
| 1995 | 45.683 |
| 1994 | 45.971 |
| 1993 | 46.029 |
| 1992 | 45.923 |
| 1991 | 45.828 |
| 1990 | 45.812 |
| 1989 | 45.876 |
| 1988 | 46.154 |
| 1987 | 46.412 |
| 1986 | 46.446 |
| 1985 | 46.43 |
| 1984 | 46.506 |
| 1983 | 46.466 |
| 1982 | 46.463 |
| 1981 | 46.448 |
| 1980 | 46.537 |
| 1979 | 46.739 |
| 1978 | 46.981 |
| 1977 | 47.002 |
| 1976 | 47.123 |
| 1975 | 47.326 |
| 1974 | 47.512 |
| 1973 | 47.381 |
| 1972 | 47.536 |
| 1971 | 47.675 |
| 1970 | 47.814 |
| 1969 | 48.032 |
| 1968 | 48.284 |
| 1967 | 48.612 |
| 1966 | 48.68 |
| 1965 | 48.836 |
| 1964 | 49.096 |
| 1963 | 49.11 |
| 1962 | 49.004 |
| 1961 | 49.021 |
| 1960 | 48.891 |