| 年份 | 中非共和国 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 5.978 |
| 2020 | 5.985 |
| 2019 | 6.008 |
| 2018 | 6.037 |
| 2017 | 6.048 |
| 2016 | 6.04 |
| 2015 | 6.035 |
| 2014 | 6.024 |
| 2013 | 6.017 |
| 2012 | 6.006 |
| 2011 | 5.963 |
| 2010 | 5.937 |
| 2009 | 5.922 |
| 2008 | 5.914 |
| 2007 | 5.892 |
| 2006 | 5.867 |
| 2005 | 5.849 |
| 2004 | 5.827 |
| 2003 | 5.852 |
| 2002 | 5.836 |
| 2001 | 5.851 |
| 2000 | 5.915 |
| 1999 | 5.933 |
| 1998 | 5.934 |
| 1997 | 5.96 |
| 1996 | 5.989 |
| 1995 | 5.972 |
| 1994 | 5.933 |
| 1993 | 5.94 |
| 1992 | 5.975 |
| 1991 | 6.032 |
| 1990 | 6.045 |
| 1989 | 6.06 |
| 1988 | 6.081 |
| 1987 | 6.102 |
| 1986 | 6.093 |
| 1985 | 6.106 |
| 1984 | 6.111 |
| 1983 | 6.124 |
| 1982 | 6.141 |
| 1981 | 6.139 |
| 1980 | 6.106 |
| 1979 | 6.071 |
| 1978 | 6.018 |
| 1977 | 5.968 |
| 1976 | 5.932 |
| 1975 | 5.889 |
| 1974 | 5.911 |
| 1973 | 5.928 |
| 1972 | 5.96 |
| 1971 | 5.986 |
| 1970 | 6.002 |
| 1969 | 6.037 |
| 1968 | 6.06 |
| 1967 | 6.015 |
| 1966 | 5.983 |
| 1965 | 5.941 |
| 1964 | 5.906 |
| 1963 | 5.868 |
| 1962 | 5.851 |
| 1961 | 5.828 |
| 1960 | 5.814 |