1941 - 1950 1950

1951 - 1960 1954

1961 - 1970 1965 1966 1967 1969 1970

1971 - 1980 1977 1979 1980

1981 - 1990 1981 1982 1983 1985 1986 1987 1988 1989 1990

1991 - 2000 1991 1993 1994 1997 1999

2001 - 2010 2001 2004 2005 2006 2007

2011 - .... 2016