Bestand
1949,3; 1952,4; 1953,2/3; 1954,1,5; 1955,1,3-6; 1956,1-2,4/5-6; 1957,1-4; 1958,1,4-6; 1959,2-6; 1960 - 1964; 1965,1,3-6; 1966,1-2; 1966/67,1/2,4-6; 1967/68,1/2,5; 1968/69,3-4; 1969/70,1-2; 1977,4; 1980,1-2; 1981,1; 1982,3; 1983,1/2; 1985,1; 1989,1