Bestand
N.F.1.1948 - 5.1952; 15.1962,2-12; 16.1963,3,5,7,9-10; 17.1964; 18.1965,1,5,8-12; 19.1966 - 21.1968; 22.1969,1,3; 23.1970,2,4-12; 24.1971 - 30.1977; 31.1978,8-9,12; 32.1979,1-2,4,10,12; 33.1980,1,5-12; 34.1981 - 42.1989; 43.1990,1-8,10-12; 44.1991 - 64.2011