| 年份 | 利比里亚 |
|---|---|
| 2023 | - |
| 2022 | 46.935 |
| 2021 | 47.427 |
| 2020 | 47.911 |
| 2019 | 48.385 |
| 2018 | 48.849 |
| 2017 | 49.303 |
| 2016 | 49.746 |
| 2015 | 50.18 |
| 2014 | 50.603 |
| 2013 | 51.015 |
| 2012 | 51.417 |
| 2011 | 51.807 |
| 2010 | 52.187 |
| 2009 | 52.555 |
| 2008 | 52.912 |
| 2007 | 53.258 |
| 2006 | 53.604 |
| 2005 | 53.949 |
| 2004 | 54.294 |
| 2003 | 54.639 |
| 2002 | 54.983 |
| 2001 | 55.327 |
| 2000 | 55.669 |
| 1999 | 56.012 |
| 1998 | 56.354 |
| 1997 | 56.696 |
| 1996 | 57.036 |
| 1995 | 54.04 |
| 1994 | 51.019 |
| 1993 | 47.991 |
| 1992 | 44.981 |
| 1991 | 42 |
| 1990 | 44.578 |
| 1989 | 47.186 |
| 1988 | 49.805 |
| 1987 | 52.433 |
| 1986 | 55.044 |
| 1985 | 57.627 |
| 1984 | 60.166 |
| 1983 | 61.806 |
| 1982 | 62.827 |
| 1981 | 63.837 |
| 1980 | 64.833 |
| 1979 | 65.819 |
| 1978 | 66.791 |
| 1977 | 67.748 |
| 1976 | 68.689 |
| 1975 | 69.618 |
| 1974 | 70.53 |
| 1973 | 71.419 |
| 1972 | 72.287 |
| 1971 | 73.14 |
| 1970 | 73.975 |
| 1969 | 74.793 |
| 1968 | 75.593 |
| 1967 | 76.378 |
| 1966 | 77.144 |
| 1965 | 77.892 |
| 1964 | 78.622 |
| 1963 | 79.336 |
| 1962 | 80.031 |
| 1961 | 80.709 |
| 1960 | 81.368 |