| 年份 | 中非共和国 |
|---|---|
| 2023 | - |
| 2022 | 17.9783 |
| 2021 | 17.8497 |
| 2020 | 17.6941 |
| 2019 | 17.6853 |
| 2018 | 17.76 |
| 2017 | 17.8945 |
| 2016 | 18.1103 |
| 2015 | 18.3654 |
| 2014 | 18.3995 |
| 2013 | 18.247 |
| 2012 | 18.0771 |
| 2011 | 17.8713 |
| 2010 | 17.7216 |
| 2009 | 17.6383 |
| 2008 | 17.5897 |
| 2007 | 17.5434 |
| 2006 | 17.4776 |
| 2005 | 17.4561 |
| 2004 | 17.4839 |
| 2003 | 17.4902 |
| 2002 | 17.5297 |
| 2001 | 17.572 |
| 2000 | 17.6188 |
| 1999 | 17.7144 |
| 1998 | 17.8077 |
| 1997 | 17.9072 |
| 1996 | 18.0128 |
| 1995 | 18.0983 |
| 1994 | 18.2082 |
| 1993 | 18.381 |
| 1992 | 18.564 |
| 1991 | 18.7084 |
| 1990 | 18.7926 |
| 1989 | 18.8323 |
| 1988 | 18.7948 |
| 1987 | 18.6651 |
| 1986 | 18.4975 |
| 1985 | 18.3178 |
| 1984 | 18.1188 |
| 1983 | 17.8981 |
| 1982 | 17.6513 |
| 1981 | 17.3859 |
| 1980 | 17.1144 |
| 1979 | 16.8831 |
| 1978 | 16.7324 |
| 1977 | 16.663 |
| 1976 | 16.6696 |
| 1975 | 16.7277 |
| 1974 | 16.7954 |
| 1973 | 16.8423 |
| 1972 | 16.8436 |
| 1971 | 16.7889 |
| 1970 | 16.6977 |
| 1969 | 16.5813 |
| 1968 | 16.4403 |
| 1967 | 16.2945 |
| 1966 | 16.1635 |
| 1965 | 16.0506 |
| 1964 | 15.9586 |
| 1963 | 15.8875 |
| 1962 | 15.8353 |
| 1961 | 15.7956 |
| 1960 | 15.7674 |