Sierra Leone — RNB : évolution (1970–2024)
Tableau de données
| 1970 | 433 M | 1989 | 1,19 Md | 2008 | 4,2 Md |
| 1971 | 461 M | 1990 | 829 M | 2009 | 4,05 Md |
| 1972 | 510 M | 1991 | 1,03 Md | 2010 | 4,36 Md |
| 1973 | 584 M | 1992 | 865 M | 2011 | 4,79 Md |
| 1974 | 673 M | 1993 | 1,04 Md | 2012 | 6,34 Md |
| 1975 | 719 M | 1994 | 1,14 Md | 2013 | 7,46 Md |
| 1976 | 667 M | 1995 | 1,17 Md | 2014 | 7,5 Md |
| 1977 | 758 M | 1996 | 1,3 Md | 2015 | 6,74 Md |
| 1978 | 966 M | 1997 | 1,19 Md | 2016 | 6,04 Md |
| 1979 | 1,1 Md | 1998 | 911 M | 2017 | 5,66 Md |
| 1980 | 1,26 Md | 1999 | 922 M | 2018 | 6,33 Md |
| 1981 | 1,36 Md | 2000 | 881 M | 2019 | 6,44 Md |
| 1982 | 1,52 Md | 2001 | 1,11 Md | 2020 | 6,56 Md |
| 1983 | 1,33 Md | 2002 | 1,44 Md | 2021 | 7,08 Md |
| 1984 | 1,64 Md | 2003 | 1,76 Md | 2022 | 7,05 Md |
| 1985 | 1,33 Md | 2004 | 1,99 Md | 2023 | 6,35 Md |
| 1986 | 1 Md | 2005 | 2,58 Md | 2024 | 6,73 Md |
| 1987 | 794 M | 2006 | 3,32 Md | ||
| 1988 | 1,22 Md | 2007 | 3,59 Md |
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