| 年份 | 刚果(布) |
|---|---|
| 2023 | - |
| 2022 | 3.5645 |
| 2021 | 3.5358 |
| 2020 | 3.50791 |
| 2019 | 3.46354 |
| 2018 | 3.4053 |
| 2017 | 3.34486 |
| 2016 | 3.2766 |
| 2015 | 3.19958 |
| 2014 | 3.12248 |
| 2013 | 3.05201 |
| 2012 | 2.99087 |
| 2011 | 2.93783 |
| 2010 | 2.88912 |
| 2009 | 2.84583 |
| 2008 | 2.79542 |
| 2007 | 2.73274 |
| 2006 | 2.67116 |
| 2005 | 2.61341 |
| 2004 | 2.56336 |
| 2003 | 2.53007 |
| 2002 | 2.50769 |
| 2001 | 2.48584 |
| 2000 | 2.46627 |
| 1999 | 2.44392 |
| 1998 | 2.41652 |
| 1997 | 2.39784 |
| 1996 | 2.39789 |
| 1995 | 2.4217 |
| 1994 | 2.4746 |
| 1993 | 2.55839 |
| 1992 | 2.66185 |
| 1991 | 2.75784 |
| 1990 | 2.83183 |
| 1989 | 2.88309 |
| 1988 | 2.91551 |
| 1987 | 2.94355 |
| 1986 | 2.98558 |
| 1985 | 3.05333 |
| 1984 | 3.14462 |
| 1983 | 3.22323 |
| 1982 | 3.25727 |
| 1981 | 3.24803 |
| 1980 | 3.20869 |
| 1979 | 3.16098 |
| 1978 | 3.12401 |
| 1977 | 3.11006 |
| 1976 | 3.11395 |
| 1975 | 3.11969 |
| 1974 | 3.13484 |
| 1973 | 3.1632 |
| 1972 | 3.19169 |
| 1971 | 3.2198 |
| 1970 | 3.24662 |
| 1969 | 3.27231 |
| 1968 | 3.29697 |
| 1967 | 3.32043 |
| 1966 | 3.34284 |
| 1965 | 3.36405 |
| 1964 | 3.38335 |
| 1963 | 3.40129 |
| 1962 | 3.41804 |
| 1961 | 3.43387 |
| 1960 | 3.44969 |