| 年份 | 中非共和国 |
|---|---|
| 2023 | - |
| 2022 | 0.716158 |
| 2021 | 0.706984 |
| 2020 | 0.69358 |
| 2019 | 0.67264 |
| 2018 | 0.65627 |
| 2017 | 0.647505 |
| 2016 | 0.635589 |
| 2015 | 0.622686 |
| 2014 | 0.611312 |
| 2013 | 0.602945 |
| 2012 | 0.597041 |
| 2011 | 0.593483 |
| 2010 | 0.591869 |
| 2009 | 0.59105 |
| 2008 | 0.590403 |
| 2007 | 0.590483 |
| 2006 | 0.592218 |
| 2005 | 0.595562 |
| 2004 | 0.599595 |
| 2003 | 0.603813 |
| 2002 | 0.608078 |
| 2001 | 0.610928 |
| 2000 | 0.613768 |
| 1999 | 0.617821 |
| 1998 | 0.620945 |
| 1997 | 0.623417 |
| 1996 | 0.626295 |
| 1995 | 0.629299 |
| 1994 | 0.632578 |
| 1993 | 0.636677 |
| 1992 | 0.641355 |
| 1991 | 0.647913 |
| 1990 | 0.658174 |
| 1989 | 0.674936 |
| 1988 | 0.703248 |
| 1987 | 0.742126 |
| 1986 | 0.783395 |
| 1985 | 0.822611 |
| 1984 | 0.859429 |
| 1983 | 0.893638 |
| 1982 | 0.925294 |
| 1981 | 0.955135 |
| 1980 | 0.9836 |
| 1979 | 1.01012 |
| 1978 | 1.03359 |
| 1977 | 1.05354 |
| 1976 | 1.06946 |
| 1975 | 1.07984 |
| 1974 | 1.08847 |
| 1973 | 1.1007 |
| 1972 | 1.11505 |
| 1971 | 1.12767 |
| 1970 | 1.13572 |
| 1969 | 1.1383 |
| 1968 | 1.13384 |
| 1967 | 1.12345 |
| 1966 | 1.11417 |
| 1965 | 1.11191 |
| 1964 | 1.11687 |
| 1963 | 1.12975 |
| 1962 | 1.15103 |
| 1961 | 1.1756 |
| 1960 | 1.19978 |