| 年份 | 利比里亚 |
|---|---|
| 2023 | - |
| 2022 | 5.65119 |
| 2021 | 5.71502 |
| 2020 | 5.78363 |
| 2019 | 5.86418 |
| 2018 | 5.91901 |
| 2017 | 5.9514 |
| 2016 | 5.98167 |
| 2015 | 5.98543 |
| 2014 | 5.96055 |
| 2013 | 5.91354 |
| 2012 | 5.85396 |
| 2011 | 5.74855 |
| 2010 | 5.62782 |
| 2009 | 5.5519 |
| 2008 | 5.48085 |
| 2007 | 5.40482 |
| 2006 | 5.33042 |
| 2005 | 5.24389 |
| 2004 | 5.13852 |
| 2003 | 5.02746 |
| 2002 | 4.93122 |
| 2001 | 4.85191 |
| 2000 | 4.79224 |
| 1999 | 4.75577 |
| 1998 | 4.74227 |
| 1997 | 4.74501 |
| 1996 | 4.77268 |
| 1995 | 4.82486 |
| 1994 | 4.89213 |
| 1993 | 4.96676 |
| 1992 | 5.04514 |
| 1991 | 5.12454 |
| 1990 | 5.19815 |
| 1989 | 5.20731 |
| 1988 | 5.21704 |
| 1987 | 5.28963 |
| 1986 | 5.40075 |
| 1985 | 5.53791 |
| 1984 | 5.73655 |
| 1983 | 5.875 |
| 1982 | 5.92204 |
| 1981 | 5.97134 |
| 1980 | 5.96932 |
| 1979 | 5.93124 |
| 1978 | 5.86931 |
| 1977 | 5.78649 |
| 1976 | 5.70643 |
| 1975 | 5.62436 |
| 1974 | 5.5697 |
| 1973 | 5.55717 |
| 1972 | 5.54655 |
| 1971 | 5.53426 |
| 1970 | 5.53305 |
| 1969 | 5.54854 |
| 1968 | 5.57253 |
| 1967 | 5.60638 |
| 1966 | 5.64371 |
| 1965 | 5.68373 |
| 1964 | 5.72667 |
| 1963 | 5.768 |
| 1962 | 5.78358 |
| 1961 | 5.7645 |
| 1960 | 5.72768 |