| 年份 | 利比里亚 |
|---|---|
| 2023 | - |
| 2022 | 3.98491 |
| 2021 | 3.90034 |
| 2020 | 3.81875 |
| 2019 | 3.75199 |
| 2018 | 3.70236 |
| 2017 | 3.65914 |
| 2016 | 3.62288 |
| 2015 | 3.58971 |
| 2014 | 3.5539 |
| 2013 | 3.51806 |
| 2012 | 3.48631 |
| 2011 | 3.44842 |
| 2010 | 3.40844 |
| 2009 | 3.37738 |
| 2008 | 3.34824 |
| 2007 | 3.32289 |
| 2006 | 3.30292 |
| 2005 | 3.2861 |
| 2004 | 3.27157 |
| 2003 | 3.26114 |
| 2002 | 3.2541 |
| 2001 | 3.24978 |
| 2000 | 3.24915 |
| 1999 | 3.22495 |
| 1998 | 3.21094 |
| 1997 | 3.24492 |
| 1996 | 3.31344 |
| 1995 | 3.40464 |
| 1994 | 3.56509 |
| 1993 | 3.73282 |
| 1992 | 3.84608 |
| 1991 | 3.93717 |
| 1990 | 4.01546 |
| 1989 | 4.06332 |
| 1988 | 4.09913 |
| 1987 | 4.12935 |
| 1986 | 4.15692 |
| 1985 | 4.18167 |
| 1984 | 4.20129 |
| 1983 | 4.18101 |
| 1982 | 4.15 |
| 1981 | 4.14065 |
| 1980 | 4.11641 |
| 1979 | 4.08149 |
| 1978 | 4.04084 |
| 1977 | 3.9963 |
| 1976 | 3.96388 |
| 1975 | 3.94505 |
| 1974 | 3.95193 |
| 1973 | 3.99038 |
| 1972 | 4.03559 |
| 1971 | 4.07491 |
| 1970 | 4.10611 |
| 1969 | 4.13232 |
| 1968 | 4.14916 |
| 1967 | 4.15794 |
| 1966 | 4.16649 |
| 1965 | 4.18086 |
| 1964 | 4.19891 |
| 1963 | 4.21906 |
| 1962 | 4.2347 |
| 1961 | 4.23892 |
| 1960 | 4.23403 |