| 年份 | 利比里亚 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 5.56922 |
| 2020 | 24.22 |
| 2019 | 21.742 |
| 2018 | 19.992 |
| 2017 | 20.846 |
| 2016 | 16.058 |
| 2015 | 12.166 |
| 2014 | 12.0842 |
| 2013 | 11.9564 |
| 2012 | 11.4594 |
| 2011 | - |
| 2010 | 12.4163 |
| 2009 | 7.82766 |
| 2008 | 7.82372 |
| 2007 | - |
| 2006 | 11.685 |
| 2005 | - |
| 2004 | - |
| 2003 | 8.67725 |
| 2002 | 7.79275 |
| 2001 | - |
| 2000 | - |
| 1999 | - |
| 1998 | - |
| 1997 | - |
| 1996 | - |
| 1995 | - |
| 1994 | - |
| 1993 | - |
| 1992 | - |
| 1991 | - |
| 1990 | 0.857143 |
| 1989 | 6.75 |
| 1988 | 8.5 |
| 1987 | 8.97436 |
| 1986 | 4.25385 |
| 1985 | 3.84211 |
| 1984 | 2.89474 |
| 1983 | 7.36842 |
| 1982 | 3.46667 |
| 1981 | 13.7466 |
| 1980 | 8.37466 |
| 1979 | 14.8167 |
| 1978 | 11.2129 |
| 1977 | 16.7466 |
| 1976 | 16.0847 |
| 1975 | 13.2678 |
| 1974 | 9.01639 |
| 1973 | 8.99454 |
| 1972 | 10.2022 |
| 1971 | 5.19126 |
| 1970 | 6.28415 |
| 1969 | 4.8913 |
| 1968 | 3.26087 |
| 1967 | 4.32432 |
| 1966 | 3.78378 |
| 1965 | 0.80429 |
| 1964 | 0.536193 |
| 1963 | 0.265957 |
| 1962 | 0.132979 |
| 1961 | 0.132275 |
| 1960 | - |