Name		von	bis
				1908	1914
				1920	1921
				1921	1922
				1922	1924
				1926	1928
				1928	1934
				1934	1936
				1936	1937
				1937	1945
				1947	1948
				1948	1949
				1949	1951
				1951	1951
				1951	1953
				1953	1953
				1953	1958
				1958	1961
				1961	1963
				1963	1964
				1964	1965
				1965	1966
				1966	1967
				1967	1969
				1969	1974
				1974	1975
				1975	1976
				1976	1984
				1984	1990
				1990	1991
				1991	1991
				1992	2010
				2010-12-29