| 年份 | 喀麦隆 |
|---|---|
| 2023 | - |
| 2022 | 0.321748 |
| 2021 | 0.334295 |
| 2020 | 0.347077 |
| 2019 | 0.353787 |
| 2018 | 0.355361 |
| 2017 | 0.357416 |
| 2016 | 0.359681 |
| 2015 | 0.361305 |
| 2014 | 0.361514 |
| 2013 | 0.361817 |
| 2012 | 0.363495 |
| 2011 | 0.365376 |
| 2010 | 0.367397 |
| 2009 | 0.369377 |
| 2008 | 0.371274 |
| 2007 | 0.372956 |
| 2006 | 0.374731 |
| 2005 | 0.376713 |
| 2004 | 0.378456 |
| 2003 | 0.379872 |
| 2002 | 0.380823 |
| 2001 | 0.381361 |
| 2000 | 0.381739 |
| 1999 | 0.381888 |
| 1998 | 0.381632 |
| 1997 | 0.380964 |
| 1996 | 0.38018 |
| 1995 | 0.379455 |
| 1994 | 0.378764 |
| 1993 | 0.3781 |
| 1992 | 0.377559 |
| 1991 | 0.377159 |
| 1990 | 0.376582 |
| 1989 | 0.375788 |
| 1988 | 0.375172 |
| 1987 | 0.374321 |
| 1986 | 0.373023 |
| 1985 | 0.371387 |
| 1984 | 0.3692 |
| 1983 | 0.367645 |
| 1982 | 0.371819 |
| 1981 | 0.375756 |
| 1980 | 0.372019 |
| 1979 | 0.368398 |
| 1978 | 0.366814 |
| 1977 | 0.365231 |
| 1976 | 0.364481 |
| 1975 | 0.362822 |
| 1974 | 0.359937 |
| 1973 | 0.356735 |
| 1972 | 0.353372 |
| 1971 | 0.349926 |
| 1970 | 0.346446 |
| 1969 | 0.342807 |
| 1968 | 0.338829 |
| 1967 | 0.334625 |
| 1966 | 0.330284 |
| 1965 | 0.32586 |
| 1964 | 0.321386 |
| 1963 | 0.316744 |
| 1962 | 0.3119 |
| 1961 | 0.308361 |
| 1960 | 0.306026 |