| 年份 | 中非共和国 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 0.768048 |
| 2020 | 0.187944 |
| 2019 | 0.0696847 |
| 2018 | 0.0556825 |
| 2017 | 0.0474264 |
| 2016 | 0.0337874 |
| 2015 | 0.0282855 |
| 2014 | 0.0335638 |
| 2013 | 0.04603 |
| 2012 | 0.042193 |
| 2011 | 0.0447416 |
| 2010 | 0.034744 |
| 2009 | 0.0283705 |
| 2008 | 0.0176031 |
| 2007 | 0.00366106 |
| 2006 | 0.00373003 |
| 2005 | 0.00218732 |
| 2004 | 0.000693934 |
| 2003 | 0.00230511 |
| 2002 | 0.00521229 |
| 2001 | 0.00433401 |
| 2000 | 0.00268071 |
| 1999 | 0.00510609 |
| 1998 | 0.00900189 |
| 1997 | 0.0209712 |
| 1996 | 0.0320685 |
| 1995 | 0.0121626 |
| 1994 | 0.0767773 |
| 1993 | 0.049439 |
| 1992 | 0.0329342 |
| 1991 | 0.070792 |
| 1990 | 0.0458796 |
| 1989 | 0.066719 |
| 1988 | 0.12803 |
| 1987 | 0.0958731 |
| 1986 | 0.056571 |
| 1985 | 0.0807714 |
| 1984 | 0.155487 |
| 1983 | 0.0714179 |
| 1982 | 0.0254176 |
| 1981 | 0.0419826 |
| 1980 | 0.0898799 |
| 1979 | 0.0251995 |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | - |
| 1974 | - |
| 1973 | - |
| 1972 | - |
| 1971 | - |
| 1970 | - |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |