| 年份 | 中非共和国 |
|---|---|
| 2023 | - |
| 2022 | 18.3881 |
| 2021 | 18.2428 |
| 2020 | 18.0728 |
| 2019 | 18.0566 |
| 2018 | 18.1261 |
| 2017 | 18.2551 |
| 2016 | 18.4687 |
| 2015 | 18.7253 |
| 2014 | 18.7475 |
| 2013 | 18.5743 |
| 2012 | 18.3889 |
| 2011 | 18.1699 |
| 2010 | 18.0087 |
| 2009 | 17.9151 |
| 2008 | 17.8574 |
| 2007 | 17.8035 |
| 2006 | 17.7298 |
| 2005 | 17.6985 |
| 2004 | 17.7163 |
| 2003 | 17.7126 |
| 2002 | 17.7404 |
| 2001 | 17.7621 |
| 2000 | 17.7855 |
| 1999 | 17.8596 |
| 1998 | 17.9271 |
| 1997 | 17.9979 |
| 1996 | 18.073 |
| 1995 | 18.1261 |
| 1994 | 18.2051 |
| 1993 | 18.3508 |
| 1992 | 18.5078 |
| 1991 | 18.6281 |
| 1990 | 18.6931 |
| 1989 | 18.7225 |
| 1988 | 18.7018 |
| 1987 | 18.6218 |
| 1986 | 18.515 |
| 1985 | 18.3972 |
| 1984 | 18.2612 |
| 1983 | 18.1042 |
| 1982 | 17.9204 |
| 1981 | 17.7166 |
| 1980 | 17.5043 |
| 1979 | 17.3296 |
| 1978 | 17.2319 |
| 1977 | 17.2111 |
| 1976 | 17.2605 |
| 1975 | 17.3451 |
| 1974 | 17.425 |
| 1973 | 17.4828 |
| 1972 | 17.4924 |
| 1971 | 17.4427 |
| 1970 | 17.3544 |
| 1969 | 17.2401 |
| 1968 | 17.1 |
| 1967 | 16.9538 |
| 1966 | 16.821 |
| 1965 | 16.7041 |
| 1964 | 16.6077 |
| 1963 | 16.5327 |
| 1962 | 16.4779 |
| 1961 | 16.4376 |
| 1960 | 16.4104 |