| 年份 | 中非共和国 |
|---|---|
| 2023 | - |
| 2022 | 0.371024 |
| 2021 | 0.363465 |
| 2020 | 0.354838 |
| 2019 | 0.344425 |
| 2018 | 0.333644 |
| 2017 | 0.32421 |
| 2016 | 0.316071 |
| 2015 | 0.309539 |
| 2014 | 0.30515 |
| 2013 | 0.302349 |
| 2012 | 0.300977 |
| 2011 | 0.301802 |
| 2010 | 0.304169 |
| 2009 | 0.307061 |
| 2008 | 0.310037 |
| 2007 | 0.313102 |
| 2006 | 0.316182 |
| 2005 | 0.319988 |
| 2004 | 0.324882 |
| 2003 | 0.33094 |
| 2002 | 0.338012 |
| 2001 | 0.346325 |
| 2000 | 0.354476 |
| 1999 | 0.360531 |
| 1998 | 0.364699 |
| 1997 | 0.368676 |
| 1996 | 0.375182 |
| 1995 | 0.386589 |
| 1994 | 0.404303 |
| 1993 | 0.429791 |
| 1992 | 0.463281 |
| 1991 | 0.501622 |
| 1990 | 0.541818 |
| 1989 | 0.582507 |
| 1988 | 0.618448 |
| 1987 | 0.64596 |
| 1986 | 0.668816 |
| 1985 | 0.689908 |
| 1984 | 0.708746 |
| 1983 | 0.723805 |
| 1982 | 0.734993 |
| 1981 | 0.742266 |
| 1980 | 0.74555 |
| 1979 | 0.745327 |
| 1978 | 0.743011 |
| 1977 | 0.738857 |
| 1976 | 0.731154 |
| 1975 | 0.723769 |
| 1974 | 0.717284 |
| 1973 | 0.70658 |
| 1972 | 0.693019 |
| 1971 | 0.681383 |
| 1970 | 0.675258 |
| 1969 | 0.674957 |
| 1968 | 0.680698 |
| 1967 | 0.69216 |
| 1966 | 0.706321 |
| 1965 | 0.720869 |
| 1964 | 0.736266 |
| 1963 | 0.753591 |
| 1962 | 0.771873 |
| 1961 | 0.78999 |
| 1960 | 0.807086 |