| 年份 | 中非共和国 |
|---|---|
| 2023 | - |
| 2022 | 12.3005 |
| 2021 | 13.2275 |
| 2020 | 15.1725 |
| 2019 | 15.7554 |
| 2018 | 15.94 |
| 2017 | 17.2598 |
| 2016 | 14.8219 |
| 2015 | 17.0677 |
| 2014 | 16.6758 |
| 2013 | 14.973 |
| 2012 | 11.5501 |
| 2011 | 13.1278 |
| 2010 | 11.6258 |
| 2009 | 9.84165 |
| 2008 | 11.0037 |
| 2007 | 14.1153 |
| 2006 | 14.316 |
| 2005 | 13.3628 |
| 2004 | 13.9979 |
| 2003 | 18.236 |
| 2002 | 15.9627 |
| 2001 | 17.1573 |
| 2000 | 20.3722 |
| 1999 | 19.2236 |
| 1998 | 22.6569 |
| 1997 | 26.8843 |
| 1996 | 21.4704 |
| 1995 | 22.2209 |
| 1994 | 23.3994 |
| 1993 | 17.0996 |
| 1992 | 16.8657 |
| 1991 | 17.5867 |
| 1990 | 17.0675 |
| 1989 | 20.3039 |
| 1988 | 17.7448 |
| 1987 | 17.8441 |
| 1986 | 18.1864 |
| 1985 | 22.0085 |
| 1984 | 23.394 |
| 1983 | 24.149 |
| 1982 | 22.1778 |
| 1981 | 24.3834 |
| 1980 | 25.2215 |
| 1979 | 22.4326 |
| 1978 | 23.4203 |
| 1977 | 25.2044 |
| 1976 | 22.1869 |
| 1975 | 21.1303 |
| 1974 | 27.7368 |
| 1973 | 28.618 |
| 1972 | 24.9348 |
| 1971 | 29.7992 |
| 1970 | 31.9385 |
| 1969 | 27.3347 |
| 1968 | 34.3123 |
| 1967 | 26.3027 |
| 1966 | 28.3505 |
| 1965 | 27.1003 |
| 1964 | 28.4483 |
| 1963 | 25.2366 |
| 1962 | 24.5902 |
| 1961 | 26.4901 |
| 1960 | 23.2727 |