Bestand
1991,Juni - 1999,Apr.; 2001,März - 2023
Bestandslücken
[L=1991,127,130-132,135,140-141,143-149,152,155,158,170-228,251-256; 1992,7,114-115,161-166,173-295,301; 1993,56; 1994,55,115,125; 1995,53,77,226,233,254;1996,185,232,255; 1997,275; 1998,290; 1999,11; 2006,100,164;2009,69]