Bestand
1.2000=1,2; 2.2001=3/4,5/6; 3.2002=7/8,9; 4.2003=11/12,13,14; 5.2004=17,18; 6.2005=21/22,23; 7.2006=24/25; 8.2007=27,28/29,30; 9.2008=31,32,33,34; 10.2009=35,36,37,38; 11.2010=39,40,41,42; 12.2011=43,44,45,46; 13.2012=47,48,49,50; 14.2013=51,52