Bestand
1.1958; 2.1959; 3.1960,1-12; 4.1961,1-12; 5.1962,1-12; 6.1963,1-12; 7.1964,1-12; 8.1965,1-12; 9.1966,1-10,12; 10.1967,1-12; 11.1968,1-12; 12.1969,1-12; 13.1970,1-12; 14.1971,1-12; 15.1972,2-12; 16.1973,1-12; 17.1974,1-12; 18.1975,1-12; 19.1976,1-12; 20.1977,1-12; 21.1978,2-11; 22.1979,2-12; 23.1980,1-12; 24.1981,1-12; 25.1982,1-12; 26.1983,2,6-8,10-12; 27.1984; 28.1985,5-12; 29.1986; 30.1987,1-6,8-12; 31.1988 - 36.1993; 37.1994,1-2,4-12; 38.1995; 39.1996,1-3,5-12; 40.1997 - 46.2003; 47.2004,8; 49.2006,4,8; 51.2008,7-12; 52.2009,1-11; 53.2010,2-12; 54.2011 - 58.2015; 59.2016,1-8,12; 60.2017,1-2,4-12; 61.2018 - 63.2020,1-4