Bestand
1977,4; 1980,42+46+50; 1981,9+12,15-17,22+29+30; 1982,9,19-22,26-32,35-36,38-39,41-43,45-50; 1983,1,3-9,11-23,25,27-30,35-50; 1985,1-42,44-52, 1990,1-7,9-38,40-43,45,47-52; 1991,1+2,5-10,12-17,19-52; 1992,1-22,24-52; 1993,1-30,33-37,39+41,46-52; 1994,1-11,14-16,18+19,21-52; 1995 - 1997; 1998,1-46,48-53; 1999 - 2003; 2004,1-9,11-53; 2005; 2006,1-31,33-42,44-52; 2007,1-30,32-35,37-52; 2008; 2009,1-31,33-53; 2010 - 2018