| 年份 | 喀麦隆 |
|---|---|
| 2023 | - |
| 2022 | 2.20227 |
| 2021 | 2.17558 |
| 2020 | 2.14953 |
| 2019 | 2.12284 |
| 2018 | 2.09589 |
| 2017 | 2.07035 |
| 2016 | 2.04757 |
| 2015 | 2.02735 |
| 2014 | 2.00986 |
| 2013 | 1.99423 |
| 2012 | 1.98046 |
| 2011 | 1.97121 |
| 2010 | 1.96719 |
| 2009 | 1.96092 |
| 2008 | 1.96163 |
| 2007 | 1.98484 |
| 2006 | 2.02272 |
| 2005 | 2.06732 |
| 2004 | 2.12468 |
| 2003 | 2.18135 |
| 2002 | 2.21725 |
| 2001 | 2.24039 |
| 2000 | 2.26045 |
| 1999 | 2.28342 |
| 1998 | 2.31251 |
| 1997 | 2.34618 |
| 1996 | 2.3805 |
| 1995 | 2.41306 |
| 1994 | 2.44336 |
| 1993 | 2.46981 |
| 1992 | 2.49222 |
| 1991 | 2.51507 |
| 1990 | 2.54147 |
| 1989 | 2.56964 |
| 1988 | 2.59743 |
| 1987 | 2.62641 |
| 1986 | 2.65698 |
| 1985 | 2.68743 |
| 1984 | 2.71709 |
| 1983 | 2.7439 |
| 1982 | 2.7609 |
| 1981 | 2.78111 |
| 1980 | 2.815 |
| 1979 | 2.8449 |
| 1978 | 2.86523 |
| 1977 | 2.88084 |
| 1976 | 2.89322 |
| 1975 | 2.90582 |
| 1974 | 2.91924 |
| 1973 | 2.93478 |
| 1972 | 2.95247 |
| 1971 | 2.9693 |
| 1970 | 2.98507 |
| 1969 | 2.99924 |
| 1968 | 3.01183 |
| 1967 | 3.02344 |
| 1966 | 3.03443 |
| 1965 | 3.04471 |
| 1964 | 3.05441 |
| 1963 | 3.06359 |
| 1962 | 3.07161 |
| 1961 | 3.07891 |
| 1960 | 3.08511 |