| 年份 | 塞拉利昂  | 
                                                            
|---|---|
| 2023 | - | 
| 2022 | 626.902 | 
| 2021 | 619.269 | 
| 2020 | 608.338 | 
| 2019 | 634.986 | 
| 2018 | 617.53 | 
| 2017 | 611.084 | 
| 2016 | 603.409 | 
| 2015 | 581.293 | 
| 2014 | 748.928 | 
| 2013 | 734.354 | 
| 2012 | 622.257 | 
| 2011 | 554.539 | 
| 2010 | 537.379 | 
| 2009 | 518.168 | 
| 2008 | 515.984 | 
| 2007 | 501.881 | 
| 2006 | 475.157 | 
| 2005 | 465.778 | 
| 2004 | 458.447 | 
| 2003 | 445.23 | 
| 2002 | 423.341 | 
| 2001 | 354.089 | 
| 2000 | 400.599 | 
| 1999 | 384.753 | 
| 1998 | 394.742 | 
| 1997 | 391.777 | 
| 1996 | 421.76 | 
| 1995 | 416.716 | 
| 1994 | 453.916 | 
| 1993 | 465.008 | 
| 1992 | 458.076 | 
| 1991 | 555.719 | 
| 1990 | 549.575 | 
| 1989 | 553.013 | 
| 1988 | 562.939 | 
| 1987 | 622.459 | 
| 1986 | 596.336 | 
| 1985 | 603.744 | 
| 1984 | 652.072 | 
| 1983 | 640.493 | 
| 1982 | 668.527 | 
| 1981 | 651.4 | 
| 1980 | 646.249 | 
| 1979 | 628.991 | 
| 1978 | 613.907 | 
| 1977 | 611.382 | 
| 1976 | 622.745 | 
| 1975 | 637.212 | 
| 1974 | 638.678 | 
| 1973 | 628.933 | 
| 1972 | 626.919 | 
| 1971 | 633.227 | 
| 1970 | 623.873 | 
| 1969 | 585.67 | 
| 1968 | 550.269 | 
| 1967 | 550.073 | 
| 1966 | 560.713 | 
| 1965 | 562.094 | 
| 1964 | 534.595 | 
| 1963 | 510.581 | 
| 1962 | 511.283 | 
| 1961 | 497.817 | 
| 1960 | 497.418 |