| 年份 | 利比里亚 |
|---|---|
| 2023 | - |
| 2022 | 4.96764 |
| 2021 | 4.95534 |
| 2020 | 4.92097 |
| 2019 | 4.86263 |
| 2018 | 4.78628 |
| 2017 | 4.702 |
| 2016 | 4.61582 |
| 2015 | 4.53163 |
| 2014 | 4.46541 |
| 2013 | 4.42082 |
| 2012 | 4.38514 |
| 2011 | 4.33601 |
| 2010 | 4.28551 |
| 2009 | 4.25349 |
| 2008 | 4.21781 |
| 2007 | 4.18723 |
| 2006 | 4.16189 |
| 2005 | 4.13398 |
| 2004 | 4.10318 |
| 2003 | 4.07209 |
| 2002 | 4.0422 |
| 2001 | 4.01427 |
| 2000 | 3.99036 |
| 1999 | 3.97105 |
| 1998 | 3.95637 |
| 1997 | 3.94445 |
| 1996 | 3.93522 |
| 1995 | 3.93848 |
| 1994 | 3.9035 |
| 1993 | 3.87537 |
| 1992 | 3.91524 |
| 1991 | 3.99201 |
| 1990 | 4.16443 |
| 1989 | 4.35948 |
| 1988 | 4.53401 |
| 1987 | 4.65743 |
| 1986 | 4.75713 |
| 1985 | 4.83487 |
| 1984 | 4.8986 |
| 1983 | 4.91508 |
| 1982 | 4.91254 |
| 1981 | 4.92822 |
| 1980 | 4.92818 |
| 1979 | 4.91416 |
| 1978 | 4.89342 |
| 1977 | 4.86671 |
| 1976 | 4.83918 |
| 1975 | 4.80725 |
| 1974 | 4.78595 |
| 1973 | 4.78222 |
| 1972 | 4.77883 |
| 1971 | 4.78143 |
| 1970 | 4.79715 |
| 1969 | 4.82739 |
| 1968 | 4.87038 |
| 1967 | 4.9221 |
| 1966 | 4.97069 |
| 1965 | 5.00979 |
| 1964 | 5.04001 |
| 1963 | 5.05887 |
| 1962 | 5.0615 |
| 1961 | 5.05613 |
| 1960 | 5.05517 |