Bestand
2000,29; 2001,18,20; 2002,13,23,45-47; 2003,1,3,13,17,26,27,34; 2004,4,28,32,33,41; 2005,14,24; 2006,2,16,27,30,33; 2007,9,27,38; 2008,12,25,32,33; 2009,13,18-20,32,37; 2010,28,32,34,37; 2011,30,33; 2012,27,35,37,39; 2013,11,14-15,17-18; 2014,23,26,31; 2015,13,15