| 年份 | 中非共和国 |
|---|---|
| 2023 | - |
| 2022 | 3.87908 |
| 2021 | 3.89425 |
| 2020 | 3.91899 |
| 2019 | 3.91755 |
| 2018 | 3.92534 |
| 2017 | 3.93319 |
| 2016 | 3.92981 |
| 2015 | 3.92262 |
| 2014 | 3.99559 |
| 2013 | 4.12027 |
| 2012 | 4.23387 |
| 2011 | 4.35468 |
| 2010 | 4.45899 |
| 2009 | 4.53969 |
| 2008 | 4.60686 |
| 2007 | 4.66533 |
| 2006 | 4.71998 |
| 2005 | 4.76265 |
| 2004 | 4.79289 |
| 2003 | 4.83122 |
| 2002 | 4.87536 |
| 2001 | 4.93761 |
| 2000 | 5.0178 |
| 1999 | 5.10673 |
| 1998 | 5.21078 |
| 1997 | 5.32553 |
| 1996 | 5.44475 |
| 1995 | 5.56476 |
| 1994 | 5.67382 |
| 1993 | 5.76519 |
| 1992 | 5.84154 |
| 1991 | 5.90201 |
| 1990 | 5.94458 |
| 1989 | 5.95958 |
| 1988 | 5.88111 |
| 1987 | 5.72152 |
| 1986 | 5.55884 |
| 1985 | 5.39523 |
| 1984 | 5.23602 |
| 1983 | 5.14168 |
| 1982 | 5.09785 |
| 1981 | 5.04399 |
| 1980 | 4.9942 |
| 1979 | 4.95948 |
| 1978 | 4.94558 |
| 1977 | 4.95155 |
| 1976 | 4.97225 |
| 1975 | 5.01966 |
| 1974 | 5.08705 |
| 1973 | 5.15137 |
| 1972 | 5.21335 |
| 1971 | 5.27457 |
| 1970 | 5.33326 |
| 1969 | 5.38686 |
| 1968 | 5.43711 |
| 1967 | 5.48571 |
| 1966 | 5.52985 |
| 1965 | 5.5674 |
| 1964 | 5.59751 |
| 1963 | 5.61858 |
| 1962 | 5.63202 |
| 1961 | 5.64276 |
| 1960 | 5.65412 |