| 年份 | 中非共和国 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 0.329842 |
| 2020 | 0.336888 |
| 2019 | 0.345534 |
| 2018 | 0.353303 |
| 2017 | 0.360235 |
| 2016 | 0.367034 |
| 2015 | 0.373496 |
| 2014 | 0.375099 |
| 2013 | 0.37481 |
| 2012 | 0.377097 |
| 2011 | 0.380387 |
| 2010 | 0.393557 |
| 2009 | 0.408804 |
| 2008 | 0.418604 |
| 2007 | 0.427373 |
| 2006 | 0.435456 |
| 2005 | 0.444304 |
| 2004 | 0.45442 |
| 2003 | 0.464384 |
| 2002 | 0.475749 |
| 2001 | 0.486375 |
| 2000 | 0.49745 |
| 1999 | 0.511578 |
| 1998 | 0.52601 |
| 1997 | 0.540701 |
| 1996 | 0.555957 |
| 1995 | 0.570695 |
| 1994 | 0.586603 |
| 1993 | 0.605345 |
| 1992 | 0.625057 |
| 1991 | 0.645261 |
| 1990 | 0.665665 |
| 1989 | 0.686463 |
| 1988 | 0.703739 |
| 1987 | 0.714943 |
| 1986 | 0.723788 |
| 1985 | 0.73245 |
| 1984 | 0.741023 |
| 1983 | 0.74947 |
| 1982 | 0.757811 |
| 1981 | 0.766076 |
| 1980 | 0.774239 |
| 1979 | 0.778136 |
| 1978 | 0.781925 |
| 1977 | 0.785637 |
| 1976 | 0.789355 |
| 1975 | 0.796873 |
| 1974 | 0.808286 |
| 1973 | 0.819708 |
| 1972 | 0.831161 |
| 1971 | 0.843113 |
| 1970 | 0.856166 |
| 1969 | 0.870632 |
| 1968 | 0.885961 |
| 1967 | 0.901152 |
| 1966 | 0.9159 |
| 1965 | 0.930147 |
| 1964 | 0.943868 |
| 1963 | 0.957092 |
| 1962 | 0.96987 |
| 1961 | 0.982247 |
| 1960 | - |