Bestand
1975,1-4; 1976,5-12; 1977,13-22; 1978,23-31; 1979,32-36; 1980,37-41; 1981,42-45; 1982,46-49; 1983,50-52; 1984,53u.55; 1985,56-60; 1986,61-62u.64; 1987/88,66-68; 1988,71u.72; 1989,73-77; 1990,78u.79u.81; 1991,82-86; 1992,87-90; 1993,91-94; 1994,95u.96; 1995,97-100; 1996,101-104; 1997,105-107; 1998,108-110; 1999,111; 2000,112u.113; 2003,119u.120