| 年份 | 利比里亚 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 56.7 |
| 2020 | 58.2 |
| 2019 | 59.6 |
| 2018 | 60.9 |
| 2017 | 62.1 |
| 2016 | 63.2 |
| 2015 | 64.6 |
| 2014 | 67.8 |
| 2013 | 66.9 |
| 2012 | 68.3 |
| 2011 | 69.9 |
| 2010 | 71.9 |
| 2009 | 74.3 |
| 2008 | 77.2 |
| 2007 | 80.9 |
| 2006 | 85.3 |
| 2005 | 90.7 |
| 2004 | 97.1 |
| 2003 | 104.2 |
| 2002 | 111.7 |
| 2001 | 119.5 |
| 2000 | 127.6 |
| 1999 | 135.7 |
| 1998 | 143.5 |
| 1997 | 151 |
| 1996 | 158.3 |
| 1995 | 164.8 |
| 1994 | 170.3 |
| 1993 | 174.4 |
| 1992 | 176.8 |
| 1991 | 177.3 |
| 1990 | 175.8 |
| 1989 | 173.1 |
| 1988 | 169.4 |
| 1987 | 165.6 |
| 1986 | 162.2 |
| 1985 | 159.8 |
| 1984 | 158.6 |
| 1983 | 158.5 |
| 1982 | 159.3 |
| 1981 | 160.7 |
| 1980 | 162.5 |
| 1979 | 164.7 |
| 1978 | 167.1 |
| 1977 | 169.6 |
| 1976 | 172.5 |
| 1975 | 175.5 |
| 1974 | 178.7 |
| 1973 | 182.1 |
| 1972 | 185.3 |
| 1971 | 188.5 |
| 1970 | 191.9 |
| 1969 | 195.3 |
| 1968 | 198.8 |
| 1967 | 201.8 |
| 1966 | 204.4 |
| 1965 | 206.5 |
| 1964 | 208.1 |
| 1963 | 209.3 |
| 1962 | 209.9 |
| 1961 | 210.1 |
| 1960 | 209.6 |