| 年份 | 中非共和国 |
|---|---|
| 2023 | - |
| 2022 | 0.19395 |
| 2021 | 0.197212 |
| 2020 | 0.201304 |
| 2019 | 0.199455 |
| 2018 | 0.195665 |
| 2017 | 0.192572 |
| 2016 | 0.189642 |
| 2015 | 0.187214 |
| 2014 | 0.191308 |
| 2013 | 0.199126 |
| 2012 | 0.205573 |
| 2011 | 0.212456 |
| 2010 | 0.217004 |
| 2009 | 0.218792 |
| 2008 | 0.219946 |
| 2007 | 0.221781 |
| 2006 | 0.225819 |
| 2005 | 0.230014 |
| 2004 | 0.233232 |
| 2003 | 0.238282 |
| 2002 | 0.242973 |
| 2001 | 0.250834 |
| 2000 | 0.260395 |
| 1999 | 0.268202 |
| 1998 | 0.278667 |
| 1997 | 0.292453 |
| 1996 | 0.309668 |
| 1995 | 0.331113 |
| 1994 | 0.354434 |
| 1993 | 0.377671 |
| 1992 | 0.403341 |
| 1991 | 0.432931 |
| 1990 | 0.467425 |
| 1989 | 0.507397 |
| 1988 | 0.538343 |
| 1987 | 0.548671 |
| 1986 | 0.549188 |
| 1985 | 0.546985 |
| 1984 | 0.542106 |
| 1983 | 0.534191 |
| 1982 | 0.522992 |
| 1981 | 0.507975 |
| 1980 | 0.488738 |
| 1979 | 0.46536 |
| 1978 | 0.437706 |
| 1977 | 0.405992 |
| 1976 | 0.370827 |
| 1975 | 0.351337 |
| 1974 | 0.350795 |
| 1973 | 0.35293 |
| 1972 | 0.357641 |
| 1971 | 0.363569 |
| 1970 | 0.369375 |
| 1969 | 0.374705 |
| 1968 | 0.37955 |
| 1967 | 0.383937 |
| 1966 | 0.387711 |
| 1965 | 0.390829 |
| 1964 | 0.393036 |
| 1963 | 0.39346 |
| 1962 | 0.392097 |
| 1961 | 0.390131 |
| 1960 | 0.388096 |