| 年份 | 塞拉利昂 |
|---|---|
| 2023 | - |
| 2022 | 0.78234 |
| 2021 | 0.794567 |
| 2020 | 0.808991 |
| 2019 | 0.827649 |
| 2018 | 0.846139 |
| 2017 | 0.850228 |
| 2016 | 0.84352 |
| 2015 | 0.836604 |
| 2014 | 0.830276 |
| 2013 | 0.827122 |
| 2012 | 0.827632 |
| 2011 | 0.830926 |
| 2010 | 0.835482 |
| 2009 | 0.840407 |
| 2008 | 0.84532 |
| 2007 | 0.850392 |
| 2006 | 0.85625 |
| 2005 | 0.863288 |
| 2004 | 0.871209 |
| 2003 | 0.879179 |
| 2002 | 0.887478 |
| 2001 | 0.896342 |
| 2000 | 0.906352 |
| 1999 | 0.918805 |
| 1998 | 0.93284 |
| 1997 | 0.946003 |
| 1996 | 0.957799 |
| 1995 | 0.969745 |
| 1994 | 0.981989 |
| 1993 | 0.993465 |
| 1992 | 1.00425 |
| 1991 | 1.01513 |
| 1990 | 1.0247 |
| 1989 | 1.03377 |
| 1988 | 1.04302 |
| 1987 | 1.0521 |
| 1986 | 1.06089 |
| 1985 | 1.0696 |
| 1984 | 1.0781 |
| 1983 | 1.08626 |
| 1982 | 1.09391 |
| 1981 | 1.10035 |
| 1980 | 1.10573 |
| 1979 | 1.11019 |
| 1978 | 1.11354 |
| 1977 | 1.11597 |
| 1976 | 1.11699 |
| 1975 | 1.117 |
| 1974 | 1.1168 |
| 1973 | 1.11619 |
| 1972 | 1.1154 |
| 1971 | 1.11375 |
| 1970 | 1.11149 |
| 1969 | 1.10906 |
| 1968 | 1.10541 |
| 1967 | 1.10018 |
| 1966 | 1.09368 |
| 1965 | 1.0863 |
| 1964 | 1.07804 |
| 1963 | 1.06884 |
| 1962 | 1.05868 |
| 1961 | 1.04742 |
| 1960 | 1.03468 |