| 年份 | 中非共和国 |
|---|---|
| 2023 | - |
| 2022 | 2.48019 |
| 2021 | 2.57487 |
| 2020 | 2.65644 |
| 2019 | 2.72569 |
| 2018 | 2.78175 |
| 2017 | 2.83128 |
| 2016 | 2.87621 |
| 2015 | 2.91308 |
| 2014 | 2.93372 |
| 2013 | 2.94146 |
| 2012 | 2.9432 |
| 2011 | 2.93707 |
| 2010 | 2.92671 |
| 2009 | 2.91209 |
| 2008 | 2.89314 |
| 2007 | 2.87072 |
| 2006 | 2.84458 |
| 2005 | 2.81562 |
| 2004 | 2.77966 |
| 2003 | 2.71165 |
| 2002 | 2.61841 |
| 2001 | 2.52293 |
| 2000 | 2.42787 |
| 1999 | 2.33851 |
| 1998 | 2.27954 |
| 1997 | 2.24472 |
| 1996 | 2.20267 |
| 1995 | 2.15666 |
| 1994 | 2.11283 |
| 1993 | 2.07498 |
| 1992 | 2.04269 |
| 1991 | 2.01568 |
| 1990 | 1.99399 |
| 1989 | 1.97804 |
| 1988 | 2.00704 |
| 1987 | 2.10301 |
| 1986 | 2.2255 |
| 1985 | 2.35062 |
| 1984 | 2.47526 |
| 1983 | 2.59909 |
| 1982 | 2.72349 |
| 1981 | 2.84834 |
| 1980 | 2.9728 |
| 1979 | 3.09517 |
| 1978 | 3.21223 |
| 1977 | 3.31993 |
| 1976 | 3.41575 |
| 1975 | 3.46121 |
| 1974 | 3.45998 |
| 1973 | 3.45206 |
| 1972 | 3.44149 |
| 1971 | 3.43916 |
| 1970 | 3.45132 |
| 1969 | 3.47814 |
| 1968 | 3.52107 |
| 1967 | 3.57556 |
| 1966 | 3.62977 |
| 1965 | 3.67709 |
| 1964 | 3.71889 |
| 1963 | 3.75571 |
| 1962 | 3.78658 |
| 1961 | 3.81421 |
| 1960 | 3.84094 |