| 年份 | 刚果(布) |
|---|---|
| 2023 | - |
| 2022 | 2.9418 |
| 2021 | 2.98357 |
| 2020 | 3.00664 |
| 2019 | 3.03587 |
| 2018 | 3.07947 |
| 2017 | 3.08261 |
| 2016 | 3.08521 |
| 2015 | 3.08964 |
| 2014 | 3.09648 |
| 2013 | 3.11787 |
| 2012 | 3.49073 |
| 2011 | 3.96244 |
| 2010 | 4.87941 |
| 2009 | 4.74266 |
| 2008 | 4.04233 |
| 2007 | 4.41453 |
| 2006 | 4.49364 |
| 2005 | 4.34764 |
| 2004 | 4.15549 |
| 2003 | 3.53503 |
| 2002 | 3.11664 |
| 2001 | 4.54198 |
| 2000 | 4.61064 |
| 1999 | 3.47226 |
| 1998 | 2.94969 |
| 1997 | 2.87204 |
| 1996 | 3.4128 |
| 1995 | 3.44338 |
| 1994 | 3.59767 |
| 1993 | 3.61762 |
| 1992 | 3.50845 |
| 1991 | 3.5481 |
| 1990 | 3.59125 |
| 1989 | 3.66221 |
| 1988 | 3.70281 |
| 1987 | 3.75639 |
| 1986 | 3.77909 |
| 1985 | 4.26675 |
| 1984 | 4.33809 |
| 1983 | 3.92777 |
| 1982 | 4.05363 |
| 1981 | 4.14412 |
| 1980 | 4.22079 |
| 1979 | 4.30414 |
| 1978 | 4.39372 |
| 1977 | 4.46593 |
| 1976 | 4.5492 |
| 1975 | 4.90534 |
| 1974 | 5.10858 |
| 1973 | 5.04543 |
| 1972 | 5.05895 |
| 1971 | 5.04224 |
| 1970 | 5.02417 |
| 1969 | 5.00667 |
| 1968 | 4.99448 |
| 1967 | 4.97338 |
| 1966 | 4.96005 |
| 1965 | 4.92945 |
| 1964 | 4.91269 |
| 1963 | 4.88323 |
| 1962 | 4.85857 |
| 1961 | 4.8369 |
| 1960 | - |