| 年份 | 塞拉利昂 |
|---|---|
| 2023 | - |
| 2022 | 3.14007 |
| 2021 | 3.14037 |
| 2020 | 3.14716 |
| 2019 | 3.14618 |
| 2018 | 3.13804 |
| 2017 | 3.1376 |
| 2016 | 3.14307 |
| 2015 | 3.15151 |
| 2014 | 3.17432 |
| 2013 | 3.20465 |
| 2012 | 3.21475 |
| 2011 | 3.21343 |
| 2010 | 3.21482 |
| 2009 | 3.21818 |
| 2008 | 3.22712 |
| 2007 | 3.24324 |
| 2006 | 3.2655 |
| 2005 | 3.29166 |
| 2004 | 3.32016 |
| 2003 | 3.3494 |
| 2002 | 3.37965 |
| 2001 | 3.41064 |
| 2000 | 3.44448 |
| 1999 | 3.48369 |
| 1998 | 3.52656 |
| 1997 | 3.56843 |
| 1996 | 3.60733 |
| 1995 | 3.64828 |
| 1994 | 3.69154 |
| 1993 | 3.73209 |
| 1992 | 3.76916 |
| 1991 | 3.80562 |
| 1990 | 3.83767 |
| 1989 | 3.86735 |
| 1988 | 3.89617 |
| 1987 | 3.92342 |
| 1986 | 3.94917 |
| 1985 | 3.9743 |
| 1984 | 3.9986 |
| 1983 | 4.02169 |
| 1982 | 4.04243 |
| 1981 | 4.05936 |
| 1980 | 4.07413 |
| 1979 | 4.08681 |
| 1978 | 4.09694 |
| 1977 | 4.10552 |
| 1976 | 4.10942 |
| 1975 | 4.1098 |
| 1974 | 4.10965 |
| 1973 | 4.10745 |
| 1972 | 4.10273 |
| 1971 | 4.09449 |
| 1970 | 4.08462 |
| 1969 | 4.07406 |
| 1968 | 4.06085 |
| 1967 | 4.04534 |
| 1966 | 4.02689 |
| 1965 | 4.00529 |
| 1964 | 3.98029 |
| 1963 | 3.95024 |
| 1962 | 3.9146 |
| 1961 | 3.87356 |
| 1960 | 3.82667 |