| 年份 | 中非共和国 |
|---|---|
| 2023 | - |
| 2022 | 9.75505 |
| 2021 | 9.65207 |
| 2020 | 9.52361 |
| 2019 | 9.31771 |
| 2018 | 9.12991 |
| 2017 | 8.97144 |
| 2016 | 8.82511 |
| 2015 | 8.70169 |
| 2014 | 8.76692 |
| 2013 | 8.95226 |
| 2012 | 9.10979 |
| 2011 | 9.25209 |
| 2010 | 9.31345 |
| 2009 | 9.30497 |
| 2008 | 9.26495 |
| 2007 | 9.21101 |
| 2006 | 9.17507 |
| 2005 | 9.12262 |
| 2004 | 9.03176 |
| 2003 | 8.93991 |
| 2002 | 8.80982 |
| 2001 | 8.66425 |
| 2000 | 8.52127 |
| 1999 | 8.38923 |
| 1998 | 8.32766 |
| 1997 | 8.34425 |
| 1996 | 8.43773 |
| 1995 | 8.61093 |
| 1994 | 8.8135 |
| 1993 | 9.00362 |
| 1992 | 9.18431 |
| 1991 | 9.34727 |
| 1990 | 9.49704 |
| 1989 | 9.63091 |
| 1988 | 9.69524 |
| 1987 | 9.66778 |
| 1986 | 9.60327 |
| 1985 | 9.52738 |
| 1984 | 9.44192 |
| 1983 | 9.34628 |
| 1982 | 9.2414 |
| 1981 | 9.12717 |
| 1980 | 9.00603 |
| 1979 | 8.88048 |
| 1978 | 8.75251 |
| 1977 | 8.62399 |
| 1976 | 8.4973 |
| 1975 | 8.45183 |
| 1974 | 8.48288 |
| 1973 | 8.45364 |
| 1972 | 8.37738 |
| 1971 | 8.31048 |
| 1970 | 8.23111 |
| 1969 | 8.13651 |
| 1968 | 8.09917 |
| 1967 | 8.10946 |
| 1966 | 8.0986 |
| 1965 | 8.08265 |
| 1964 | 8.07693 |
| 1963 | 8.08922 |
| 1962 | 8.11822 |
| 1961 | 8.1556 |
| 1960 | 8.19252 |