1951 - 1960 1953

1961 - 1970 1961 1963 1965

1971 - 1980 1975 1979

1981 - 1990 1981 1982 1983 1984 1985 1987 1990

1991 - 2000 1993 1994 1995 1997

2001 - 2010 2001 2002 2003 2006 2007 2008

2011 - ... 2011 2014 2015