Bestand
1947,1-1951,12; 1952,1-3,12; 1953,1-6; 1954,1-5; 1955,1-1958,6; 1959,1-7; 1960,1-1963,6; 1964,1/2,15/1; 1965,1,2; 1967,2/6; 1980,1,2; 1981,1,2; 1985,4; 1987,2; 1991,1,2; 1992; 2000,1-2001,2; 2005,1; 2006,1,2; 2007,1,2; 2008,1,2; 2009,1,2; 2010,1; 2012,1,2; 2013,1,2; 2014,1; 2015,1,2; 2016,2; 2017,1;