Bestand
1979,1; 1980,2-5; 1981,1-4; 1982,1-4; 1983,1-3u.6u.8-9; 1984,1u.5; 1985,2u.4-5u.8-9; 1986,1-3; 1987,2-3; 1988,1-3; 1989,1u.3-5; 1990,1u.4-5; 1991,1-3; 1992,1-4; 1993,2-5; 1994,1-4; 1995,1-4; 1996,1-4; 1997,1u.3-5; 1998,1; 2000,1-3; 2001,1; 2002,1-4; 2003,1