| 年份 | 利比里亚 |
|---|---|
| 2023 | - |
| 2022 | 11.1746 |
| 2021 | 11.0186 |
| 2020 | 10.8651 |
| 2019 | 10.7288 |
| 2018 | 10.607 |
| 2017 | 10.4812 |
| 2016 | 10.3458 |
| 2015 | 10.2036 |
| 2014 | 10.0663 |
| 2013 | 9.95739 |
| 2012 | 9.89343 |
| 2011 | 9.81762 |
| 2010 | 9.73149 |
| 2009 | 9.69817 |
| 2008 | 9.69616 |
| 2007 | 9.7241 |
| 2006 | 9.7888 |
| 2005 | 9.87711 |
| 2004 | 9.97469 |
| 2003 | 10.1262 |
| 2002 | 10.3046 |
| 2001 | 10.4584 |
| 2000 | 10.6245 |
| 1999 | 10.8111 |
| 1998 | 10.9441 |
| 1997 | 11.032 |
| 1996 | 11.1187 |
| 1995 | 11.1585 |
| 1994 | 11.1304 |
| 1993 | 11.0395 |
| 1992 | 10.9277 |
| 1991 | 10.8013 |
| 1990 | 10.5905 |
| 1989 | 10.4205 |
| 1988 | 10.2814 |
| 1987 | 10.1202 |
| 1986 | 9.94145 |
| 1985 | 9.73858 |
| 1984 | 9.50525 |
| 1983 | 9.42581 |
| 1982 | 9.42457 |
| 1981 | 9.34958 |
| 1980 | 9.34512 |
| 1979 | 9.40424 |
| 1978 | 9.50407 |
| 1977 | 9.64303 |
| 1976 | 9.77172 |
| 1975 | 9.89539 |
| 1974 | 9.95957 |
| 1973 | 9.93411 |
| 1972 | 9.90142 |
| 1971 | 9.87176 |
| 1970 | 9.82884 |
| 1969 | 9.68656 |
| 1968 | 9.54429 |
| 1967 | 9.52572 |
| 1966 | 9.58557 |
| 1965 | 9.69956 |
| 1964 | 9.9434 |
| 1963 | 10.2173 |
| 1962 | 10.3856 |
| 1961 | 10.5092 |
| 1960 | 10.5871 |