1951 - 1960 1956

1961 - 1970 1962 1964 1966 1969 1970

1971 - 1980 1973 1975 1977 1978 1980

1981 - 1990 1981 1982 1984 1985 1986 1987 1988 1989 1990

1991 - 2000 1991 1994 1995 1996 1998 1999

2001 - 2010 2003 2004 2006

2011 - ... 2016