1951 - 1960 1956

1961 - 1970 1961 1962 1963 1968 1969

1971 - 1980 1973 1975 1976 1977 1980

1981 - 1990 1982 1983 1984 1985 1987 1988 1989 1990

1991 - 2000 1992 1993 1995 1996 1998 2000

2001 - ... 2001 2002 2004 2005 2012 2017 2018