| 年份 | 塞拉利昂 |
|---|---|
| 2023 | - |
| 2022 | -24.338 |
| 2021 | -24.5345 |
| 2020 | -21.3758 |
| 2019 | -19.6968 |
| 2018 | -21.7612 |
| 2017 | -22.1016 |
| 2016 | -28.1483 |
| 2015 | -27.8576 |
| 2014 | -21.6656 |
| 2013 | -30.1993 |
| 2012 | -19.4819 |
| 2011 | -39.7023 |
| 2010 | -17.6867 |
| 2009 | -14.6452 |
| 2008 | -12.4411 |
| 2007 | -9.22419 |
| 2006 | -8.28307 |
| 2005 | -11.8956 |
| 2004 | -12.8087 |
| 2003 | -18.276 |
| 2002 | -21.5815 |
| 2001 | -20.0309 |
| 2000 | -21.2603 |
| 1999 | -6.09338 |
| 1998 | -7.20956 |
| 1997 | -1.87863 |
| 1996 | -14.7051 |
| 1995 | -7.85238 |
| 1994 | 3.86303 |
| 1993 | -4.29474 |
| 1992 | -1.31099 |
| 1991 | 2.2547 |
| 1990 | 0.689122 |
| 1989 | 6.24686 |
| 1988 | 14.3332 |
| 1987 | 8.77537 |
| 1986 | -3.09331 |
| 1985 | -1.78694 |
| 1984 | -1.78055 |
| 1983 | -10.9642 |
| 1982 | -10.1776 |
| 1981 | -16.7234 |
| 1980 | -15.3527 |
| 1979 | -7.18077 |
| 1978 | -4.18522 |
| 1977 | -7.01026 |
| 1976 | -7.38644 |
| 1975 | -9.36277 |
| 1974 | -2.03661 |
| 1973 | 1.23513 |
| 1972 | -1.26117 |
| 1971 | -1.11876 |
| 1970 | 1.74029 |
| 1969 | 2.43705 |
| 1968 | -3.16498 |
| 1967 | -4.23595 |
| 1966 | -3.84042 |
| 1965 | -2.41527 |
| 1964 | -0.43923 |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |