| 年份 | 刚果(布) |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 4.171 |
| 2020 | 4.234 |
| 2019 | 4.296 |
| 2018 | 4.367 |
| 2017 | 4.433 |
| 2016 | 4.487 |
| 2015 | 4.564 |
| 2014 | 4.626 |
| 2013 | 4.691 |
| 2012 | 4.75 |
| 2011 | 4.791 |
| 2010 | 4.822 |
| 2009 | 4.792 |
| 2008 | 4.733 |
| 2007 | 4.666 |
| 2006 | 4.656 |
| 2005 | 4.663 |
| 2004 | 4.687 |
| 2003 | 4.7 |
| 2002 | 4.719 |
| 2001 | 4.712 |
| 2000 | 4.764 |
| 1999 | 4.853 |
| 1998 | 4.926 |
| 1997 | 4.962 |
| 1996 | 4.966 |
| 1995 | 4.973 |
| 1994 | 5 |
| 1993 | 5.057 |
| 1992 | 5.111 |
| 1991 | 5.16 |
| 1990 | 5.214 |
| 1989 | 5.305 |
| 1988 | 5.395 |
| 1987 | 5.487 |
| 1986 | 5.571 |
| 1985 | 5.645 |
| 1984 | 5.725 |
| 1983 | 5.811 |
| 1982 | 5.898 |
| 1981 | 5.984 |
| 1980 | 6.065 |
| 1979 | 6.143 |
| 1978 | 6.21 |
| 1977 | 6.271 |
| 1976 | 6.317 |
| 1975 | 6.356 |
| 1974 | 6.39 |
| 1973 | 6.42 |
| 1972 | 6.444 |
| 1971 | 6.416 |
| 1970 | 6.376 |
| 1969 | 6.35 |
| 1968 | 6.327 |
| 1967 | 6.29 |
| 1966 | 6.267 |
| 1965 | 6.229 |
| 1964 | 6.183 |
| 1963 | 6.147 |
| 1962 | 6.099 |
| 1961 | 6.093 |
| 1960 | 6.085 |