Bestand
Jg. 14.1986,1-6; 15.1987,1-3 u .6; 16.1988,1,2,6; 17.1989,1-2u.4-6; 18.1990,1-5; 19.1991,1-2u.5; 20.1992,2-3u.6; 21.1993,1,3,6; 22.1994,1-2; 23.1995,1-3u.5; 24.1996,1,2,3/4,5,6; 25.1997,1-3,5,6; 26.1998, 2-6; 27.1999, 1-4;28.2000, 2-4; 28.2001,1-2;30.2002,1-3; ;31.2003,1- 4; 32.2004,1, 3,4; 33.2005,1-4; 34.2006,1,3,4; 35.2007,1-3; 36.2008,1-4; 37.2009,1-4; 38.2010,1,3,4; 39.2011,1,4; 40.2012,1; 42.2014,4; 43.2015,1-4; 44.2016,1-4; 45.2017,1-3; 46.2018,1-4; 47.2019, 1-4; 48.2020 fortlaufend