Bestand
1957; 1958,Juli-Sept.; 1959,Jan.,Apr.-Dez.; 1960,Jan.-Okt.,Dez.; 1961 - 1966; 1967,1,3,4,6,8-12; 1968 - 1969; 1970,1-4,6-11; 1971,1,3-5,7,8,12; 1972,1-3,5,7-9,11,12; 1973,3,5,6,10; 1974,1,10,12; 1975,2,3,5,6,8-11; 1976,1,3,6-8; 1977; 1978,1,2,4-6,9,10-12; 1979,5,10; 1980,2-12; 1981,1-5; 1982 - 1984,8