| 年份 | 中非共和国 |
|---|---|
| 2023 | - |
| 2022 | 3.81345 |
| 2021 | 3.82236 |
| 2020 | 3.84187 |
| 2019 | 3.83945 |
| 2018 | 3.84811 |
| 2017 | 3.85991 |
| 2016 | 3.86557 |
| 2015 | 3.87433 |
| 2014 | 3.96503 |
| 2013 | 4.11474 |
| 2012 | 4.26946 |
| 2011 | 4.44649 |
| 2010 | 4.62234 |
| 2009 | 4.78667 |
| 2008 | 4.94335 |
| 2007 | 5.08909 |
| 2006 | 5.22076 |
| 2005 | 5.32988 |
| 2004 | 5.41561 |
| 2003 | 5.49285 |
| 2002 | 5.56167 |
| 2001 | 5.61627 |
| 2000 | 5.66539 |
| 1999 | 5.71205 |
| 1998 | 5.74358 |
| 1997 | 5.75784 |
| 1996 | 5.75554 |
| 1995 | 5.73448 |
| 1994 | 5.69952 |
| 1993 | 5.65746 |
| 1992 | 5.60672 |
| 1991 | 5.54723 |
| 1990 | 5.47753 |
| 1989 | 5.38932 |
| 1988 | 5.25267 |
| 1987 | 5.09821 |
| 1986 | 4.97227 |
| 1985 | 4.86341 |
| 1984 | 4.77411 |
| 1983 | 4.75095 |
| 1982 | 4.77755 |
| 1981 | 4.79993 |
| 1980 | 4.82578 |
| 1979 | 4.8633 |
| 1978 | 4.91725 |
| 1977 | 4.98699 |
| 1976 | 5.06828 |
| 1975 | 5.14544 |
| 1974 | 5.21242 |
| 1973 | 5.27597 |
| 1972 | 5.33681 |
| 1971 | 5.39687 |
| 1970 | 5.455 |
| 1969 | 5.50899 |
| 1968 | 5.5597 |
| 1967 | 5.60791 |
| 1966 | 5.65141 |
| 1965 | 5.68874 |
| 1964 | 5.7196 |
| 1963 | 5.74394 |
| 1962 | 5.76079 |
| 1961 | 5.76864 |
| 1960 | 5.76638 |