| 年份 | 利比里亚 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 62.1 |
| 2020 | 63.5 |
| 2019 | 65 |
| 2018 | 66.4 |
| 2017 | 67.7 |
| 2016 | 69 |
| 2015 | 70.5 |
| 2014 | 73.7 |
| 2013 | 73 |
| 2012 | 74.5 |
| 2011 | 76.3 |
| 2010 | 78.3 |
| 2009 | 80.9 |
| 2008 | 84 |
| 2007 | 87.9 |
| 2006 | 92.7 |
| 2005 | 98.5 |
| 2004 | 105.4 |
| 2003 | 112.8 |
| 2002 | 120.7 |
| 2001 | 129 |
| 2000 | 137.5 |
| 1999 | 145.8 |
| 1998 | 153.9 |
| 1997 | 162.2 |
| 1996 | 170.2 |
| 1995 | 177.2 |
| 1994 | 183 |
| 1993 | 187.2 |
| 1992 | 189.8 |
| 1991 | 190.4 |
| 1990 | 189.2 |
| 1989 | 186.3 |
| 1988 | 182.4 |
| 1987 | 178.4 |
| 1986 | 175.1 |
| 1985 | 172.8 |
| 1984 | 171.9 |
| 1983 | 171.9 |
| 1982 | 172.8 |
| 1981 | 174.3 |
| 1980 | 176.6 |
| 1979 | 178.8 |
| 1978 | 181.2 |
| 1977 | 183.8 |
| 1976 | 186.7 |
| 1975 | 190.1 |
| 1974 | 193.6 |
| 1973 | 197.1 |
| 1972 | 200.7 |
| 1971 | 204.2 |
| 1970 | 208 |
| 1969 | 211.6 |
| 1968 | 215.5 |
| 1967 | 218.7 |
| 1966 | 221.6 |
| 1965 | 223.7 |
| 1964 | 225.3 |
| 1963 | 226.4 |
| 1962 | 226.9 |
| 1961 | 226.9 |
| 1960 | 226.3 |