| 年份 | 中非共和国 |
|---|---|
| 2023 | - |
| 2022 | 1.69249 |
| 2021 | 1.7437 |
| 2020 | 1.80101 |
| 2019 | 1.85974 |
| 2018 | 1.91909 |
| 2017 | 1.9801 |
| 2016 | 2.03985 |
| 2015 | 2.09591 |
| 2014 | 2.14329 |
| 2013 | 2.1815 |
| 2012 | 2.21368 |
| 2011 | 2.23932 |
| 2010 | 2.25967 |
| 2009 | 2.27128 |
| 2008 | 2.25243 |
| 2007 | 2.2072 |
| 2006 | 2.15808 |
| 2005 | 2.10496 |
| 2004 | 2.04966 |
| 2003 | 2.01765 |
| 2002 | 2.00562 |
| 2001 | 1.9844 |
| 2000 | 1.96133 |
| 1999 | 1.94344 |
| 1998 | 1.9303 |
| 1997 | 1.92199 |
| 1996 | 1.9176 |
| 1995 | 1.9142 |
| 1994 | 1.91118 |
| 1993 | 1.90898 |
| 1992 | 1.90754 |
| 1991 | 1.90864 |
| 1990 | 1.91206 |
| 1989 | 1.9159 |
| 1988 | 1.93623 |
| 1987 | 1.98444 |
| 1986 | 2.04366 |
| 1985 | 2.10358 |
| 1984 | 2.16312 |
| 1983 | 2.22033 |
| 1982 | 2.275 |
| 1981 | 2.32903 |
| 1980 | 2.38277 |
| 1979 | 2.43478 |
| 1978 | 2.4846 |
| 1977 | 2.53393 |
| 1976 | 2.58527 |
| 1975 | 2.62204 |
| 1974 | 2.64441 |
| 1973 | 2.67255 |
| 1972 | 2.70565 |
| 1971 | 2.74035 |
| 1970 | 2.77503 |
| 1969 | 2.81049 |
| 1968 | 2.84614 |
| 1967 | 2.87974 |
| 1966 | 2.91145 |
| 1965 | 2.94177 |
| 1964 | 2.96951 |
| 1963 | 2.99329 |
| 1962 | 3.01531 |
| 1961 | 3.03982 |
| 1960 | 3.07019 |