| 年份 | 比利时 |
|---|---|
| 2023 | - |
| 2022 | 6.87968 |
| 2021 | 6.93195 |
| 2020 | 7.00403 |
| 2019 | 7.11681 |
| 2018 | 7.25187 |
| 2017 | 7.35438 |
| 2016 | 7.41963 |
| 2015 | 7.44165 |
| 2014 | 7.42124 |
| 2013 | 7.38638 |
| 2012 | 7.35368 |
| 2011 | 7.30957 |
| 2010 | 7.25408 |
| 2009 | 7.19117 |
| 2008 | 7.11941 |
| 2007 | 7.05528 |
| 2006 | 6.98664 |
| 2005 | 6.92197 |
| 2004 | 6.8823 |
| 2003 | 6.8671 |
| 2002 | 6.86894 |
| 2001 | 6.9051 |
| 2000 | 6.8577 |
| 1999 | 6.68977 |
| 1998 | 6.48329 |
| 1997 | 6.17837 |
| 1996 | 5.75897 |
| 1995 | 5.45037 |
| 1994 | 5.34536 |
| 1993 | 5.32453 |
| 1992 | 5.40253 |
| 1991 | 5.56967 |
| 1990 | 5.71892 |
| 1989 | 5.78605 |
| 1988 | 5.81575 |
| 1987 | 5.88348 |
| 1986 | 6.01744 |
| 1985 | 6.17608 |
| 1984 | 6.29144 |
| 1983 | 6.34967 |
| 1982 | 6.36815 |
| 1981 | 6.34889 |
| 1980 | 6.33069 |
| 1979 | 6.35482 |
| 1978 | 6.41454 |
| 1977 | 6.46738 |
| 1976 | 6.51165 |
| 1975 | 6.55125 |
| 1974 | 6.43194 |
| 1973 | 6.00859 |
| 1972 | 5.44525 |
| 1971 | 4.931 |
| 1970 | 4.52991 |
| 1969 | 4.46427 |
| 1968 | 4.82427 |
| 1967 | 5.36745 |
| 1966 | 5.84619 |
| 1965 | 6.18139 |
| 1964 | 6.35649 |
| 1963 | 6.4343 |
| 1962 | 6.50938 |
| 1961 | 6.61231 |
| 1960 | 6.719 |