年份 | 比利时 |
---|---|
2023 | - |
2022 | - |
2021 | 3.8 |
2020 | 3.8 |
2019 | 3.8 |
2018 | 3.8 |
2017 | 3.7 |
2016 | 3.7 |
2015 | 3.8 |
2014 | 3.8 |
2013 | 3.9 |
2012 | 3.9 |
2011 | 4 |
2010 | 4.1 |
2009 | 4.2 |
2008 | 4.3 |
2007 | 4.4 |
2006 | 4.5 |
2005 | 4.6 |
2004 | 4.7 |
2003 | 4.9 |
2002 | 5.1 |
2001 | 5.2 |
2000 | 5.4 |
1999 | 5.6 |
1998 | 5.9 |
1997 | 6.2 |
1996 | 6.6 |
1995 | 7.2 |
1994 | 7.8 |
1993 | 8.3 |
1992 | 8.8 |
1991 | 9.2 |
1990 | 9.5 |
1989 | 9.9 |
1988 | 10.2 |
1987 | 10.5 |
1986 | 10.9 |
1985 | 11.2 |
1984 | 11.6 |
1983 | 12.1 |
1982 | 12.7 |
1981 | 13.4 |
1980 | 13.9 |
1979 | 14.5 |
1978 | 15.3 |
1977 | 16 |
1976 | 16.9 |
1975 | 17.8 |
1974 | 18.8 |
1973 | 20 |
1972 | 21.2 |
1971 | 22.4 |
1970 | 23.4 |
1969 | 24.2 |
1968 | 24.8 |
1967 | 25.4 |
1966 | 26.1 |
1965 | 26.9 |
1964 | 28 |
1963 | 29.1 |
1962 | 30.2 |
1961 | 31.6 |
1960 | 33.1 |