Bestand
1992,2; 1993,1-3,5; 1994,1-5,7; 1995,1-7,9; 1996,1-8; 1997,2-7; 1998,1-9; 1999,1-6; 2000,1-6,8; 2001,1; 2002,1-5; 2003,1-7; 2004,1-7,9-21,24-27,30,32-33; 2005,2,6-12,14; 2006,1-5; 2007,2-5,7-9; 2008,1-29; 2009,1-8,10-28; 2010,2-32; 2011,1-9,11-17; 2012,1-16