| 年份 | 利比里亚 |
|---|---|
| 2023 | - |
| 2022 | 53.065 |
| 2021 | 52.573 |
| 2020 | 52.089 |
| 2019 | 51.615 |
| 2018 | 51.151 |
| 2017 | 50.697 |
| 2016 | 50.254 |
| 2015 | 49.82 |
| 2014 | 49.397 |
| 2013 | 48.985 |
| 2012 | 48.583 |
| 2011 | 48.193 |
| 2010 | 47.813 |
| 2009 | 47.445 |
| 2008 | 47.088 |
| 2007 | 46.742 |
| 2006 | 46.396 |
| 2005 | 46.051 |
| 2004 | 45.706 |
| 2003 | 45.361 |
| 2002 | 45.017 |
| 2001 | 44.673 |
| 2000 | 44.331 |
| 1999 | 43.988 |
| 1998 | 43.646 |
| 1997 | 43.304 |
| 1996 | 42.964 |
| 1995 | 45.96 |
| 1994 | 48.981 |
| 1993 | 52.009 |
| 1992 | 55.019 |
| 1991 | 58 |
| 1990 | 55.422 |
| 1989 | 52.814 |
| 1988 | 50.195 |
| 1987 | 47.567 |
| 1986 | 44.956 |
| 1985 | 42.373 |
| 1984 | 39.834 |
| 1983 | 38.194 |
| 1982 | 37.173 |
| 1981 | 36.163 |
| 1980 | 35.167 |
| 1979 | 34.181 |
| 1978 | 33.209 |
| 1977 | 32.252 |
| 1976 | 31.311 |
| 1975 | 30.382 |
| 1974 | 29.47 |
| 1973 | 28.581 |
| 1972 | 27.713 |
| 1971 | 26.86 |
| 1970 | 26.025 |
| 1969 | 25.207 |
| 1968 | 24.407 |
| 1967 | 23.622 |
| 1966 | 22.856 |
| 1965 | 22.108 |
| 1964 | 21.378 |
| 1963 | 20.664 |
| 1962 | 19.969 |
| 1961 | 19.291 |
| 1960 | 18.632 |