| 年份 | 利比里亚 |
|---|---|
| 2023 | - |
| 2022 | 5.57988 |
| 2021 | 5.63844 |
| 2020 | 5.69754 |
| 2019 | 5.76398 |
| 2018 | 5.804 |
| 2017 | 5.81867 |
| 2016 | 5.82597 |
| 2015 | 5.80366 |
| 2014 | 5.75296 |
| 2013 | 5.68335 |
| 2012 | 5.60616 |
| 2011 | 5.47992 |
| 2010 | 5.34438 |
| 2009 | 5.27406 |
| 2008 | 5.22094 |
| 2007 | 5.1794 |
| 2006 | 5.1583 |
| 2005 | 5.14014 |
| 2004 | 5.11226 |
| 2003 | 5.07758 |
| 2002 | 5.0443 |
| 2001 | 5.00891 |
| 2000 | 4.97077 |
| 1999 | 4.932 |
| 1998 | 4.89312 |
| 1997 | 4.85356 |
| 1996 | 4.81429 |
| 1995 | 4.78125 |
| 1994 | 4.75144 |
| 1993 | 4.72816 |
| 1992 | 4.70956 |
| 1991 | 4.69422 |
| 1990 | 4.70686 |
| 1989 | 4.67974 |
| 1988 | 4.64882 |
| 1987 | 4.69665 |
| 1986 | 4.79621 |
| 1985 | 4.94462 |
| 1984 | 5.16332 |
| 1983 | 5.36708 |
| 1982 | 5.50302 |
| 1981 | 5.61771 |
| 1980 | 5.69442 |
| 1979 | 5.7447 |
| 1978 | 5.77388 |
| 1977 | 5.78497 |
| 1976 | 5.78711 |
| 1975 | 5.77986 |
| 1974 | 5.77055 |
| 1973 | 5.76884 |
| 1972 | 5.76868 |
| 1971 | 5.76523 |
| 1970 | 5.75671 |
| 1969 | 5.74729 |
| 1968 | 5.73723 |
| 1967 | 5.72788 |
| 1966 | 5.7291 |
| 1965 | 5.74621 |
| 1964 | 5.7781 |
| 1963 | 5.8262 |
| 1962 | 5.88205 |
| 1961 | 5.92956 |
| 1960 | 5.96234 |