| 年份 | 利比里亚 |
|---|---|
| 2023 | - |
| 2022 | 11.4854 |
| 2021 | 11.3229 |
| 2020 | 11.1609 |
| 2019 | 11.0163 |
| 2018 | 10.8848 |
| 2017 | 10.7465 |
| 2016 | 10.5947 |
| 2015 | 10.4331 |
| 2014 | 10.2738 |
| 2013 | 10.1417 |
| 2012 | 10.0559 |
| 2011 | 9.97957 |
| 2010 | 9.90423 |
| 2009 | 9.87296 |
| 2008 | 9.8807 |
| 2007 | 9.92376 |
| 2006 | 10.0041 |
| 2005 | 10.1091 |
| 2004 | 10.2229 |
| 2003 | 10.3854 |
| 2002 | 10.5685 |
| 2001 | 10.7217 |
| 2000 | 10.8766 |
| 1999 | 11.0402 |
| 1998 | 11.1422 |
| 1997 | 11.1897 |
| 1996 | 11.2201 |
| 1995 | 11.1966 |
| 1994 | 11.1024 |
| 1993 | 10.9537 |
| 1992 | 10.7916 |
| 1991 | 10.6273 |
| 1990 | 10.4186 |
| 1989 | 10.2932 |
| 1988 | 10.2284 |
| 1987 | 10.1675 |
| 1986 | 10.1099 |
| 1985 | 10.0414 |
| 1984 | 9.94392 |
| 1983 | 9.87377 |
| 1982 | 9.82827 |
| 1981 | 9.76364 |
| 1980 | 9.71109 |
| 1979 | 9.6705 |
| 1978 | 9.63679 |
| 1977 | 9.6107 |
| 1976 | 9.58092 |
| 1975 | 9.55094 |
| 1974 | 9.51309 |
| 1973 | 9.45793 |
| 1972 | 9.39749 |
| 1971 | 9.33221 |
| 1970 | 9.26134 |
| 1969 | 9.12612 |
| 1968 | 9.03061 |
| 1967 | 9.07451 |
| 1966 | 9.20204 |
| 1965 | 9.40944 |
| 1964 | 9.74296 |
| 1963 | 10.0686 |
| 1962 | 10.2617 |
| 1961 | 10.3893 |
| 1960 | 10.4557 |