| 年份 | 塞拉利昂 |
|---|---|
| 2023 | - |
| 2022 | 0.984715 |
| 2021 | 1.00074 |
| 2020 | 1.01866 |
| 2019 | 1.04299 |
| 2018 | 1.06473 |
| 2017 | 1.06639 |
| 2016 | 1.05664 |
| 2015 | 1.04668 |
| 2014 | 1.03758 |
| 2013 | 1.0323 |
| 2012 | 1.03146 |
| 2011 | 1.03396 |
| 2010 | 1.03768 |
| 2009 | 1.04169 |
| 2008 | 1.04565 |
| 2007 | 1.04971 |
| 2006 | 1.05506 |
| 2005 | 1.06216 |
| 2004 | 1.07035 |
| 2003 | 1.07885 |
| 2002 | 1.0878 |
| 2001 | 1.09701 |
| 2000 | 1.10697 |
| 1999 | 1.11805 |
| 1998 | 1.13044 |
| 1997 | 1.14312 |
| 1996 | 1.15471 |
| 1995 | 1.16655 |
| 1994 | 1.1788 |
| 1993 | 1.19016 |
| 1992 | 1.20046 |
| 1991 | 1.21089 |
| 1990 | 1.2205 |
| 1989 | 1.2297 |
| 1988 | 1.2388 |
| 1987 | 1.24758 |
| 1986 | 1.25581 |
| 1985 | 1.26341 |
| 1984 | 1.27033 |
| 1983 | 1.27659 |
| 1982 | 1.28196 |
| 1981 | 1.286 |
| 1980 | 1.2894 |
| 1979 | 1.29244 |
| 1978 | 1.29479 |
| 1977 | 1.29654 |
| 1976 | 1.29687 |
| 1975 | 1.29634 |
| 1974 | 1.29611 |
| 1973 | 1.29612 |
| 1972 | 1.29639 |
| 1971 | 1.29625 |
| 1970 | 1.296 |
| 1969 | 1.29574 |
| 1968 | 1.29431 |
| 1967 | 1.29166 |
| 1966 | 1.28765 |
| 1965 | 1.28204 |
| 1964 | 1.2749 |
| 1963 | 1.26631 |
| 1962 | 1.25671 |
| 1961 | 1.24652 |
| 1960 | 1.2356 |