| 年份 | 中非共和国 |
|---|---|
| 2023 | - |
| 2022 | 5.08806 |
| 2021 | 5.06743 |
| 2020 | 5.02686 |
| 2019 | 4.95876 |
| 2018 | 4.84277 |
| 2017 | 4.70805 |
| 2016 | 4.56903 |
| 2015 | 4.42893 |
| 2014 | 4.25602 |
| 2013 | 4.1108 |
| 2012 | 4.018 |
| 2011 | 3.93907 |
| 2010 | 3.88615 |
| 2009 | 3.85374 |
| 2008 | 3.83213 |
| 2007 | 3.82036 |
| 2006 | 3.81817 |
| 2005 | 3.83132 |
| 2004 | 3.85704 |
| 2003 | 3.88793 |
| 2002 | 3.93028 |
| 2001 | 3.98785 |
| 2000 | 4.05496 |
| 1999 | 4.12648 |
| 1998 | 4.20096 |
| 1997 | 4.28108 |
| 1996 | 4.36901 |
| 1995 | 4.46532 |
| 1994 | 4.57169 |
| 1993 | 4.68911 |
| 1992 | 4.81939 |
| 1991 | 4.96772 |
| 1990 | 5.13515 |
| 1989 | 5.32677 |
| 1988 | 5.54358 |
| 1987 | 5.77235 |
| 1986 | 6.00144 |
| 1985 | 6.22683 |
| 1984 | 6.44792 |
| 1983 | 6.66272 |
| 1982 | 6.86308 |
| 1981 | 7.03796 |
| 1980 | 7.18078 |
| 1979 | 7.29087 |
| 1978 | 7.3682 |
| 1977 | 7.41488 |
| 1976 | 7.4336 |
| 1975 | 7.43039 |
| 1974 | 7.41757 |
| 1973 | 7.40235 |
| 1972 | 7.38796 |
| 1971 | 7.38107 |
| 1970 | 7.38918 |
| 1969 | 7.41501 |
| 1968 | 7.45537 |
| 1967 | 7.50244 |
| 1966 | 7.54835 |
| 1965 | 7.59077 |
| 1964 | 7.62636 |
| 1963 | 7.64043 |
| 1962 | 7.64213 |
| 1961 | 7.65921 |
| 1960 | 7.69849 |