beteiligt an den Grafikbörsen:
11//1983, 12//1984, 13//1985, 14//1986, 15//1987, 16//1989, 17//1990, 20//1993, 21//1995, 22//1996, 23//1998, 25//2000, 27//2002, 28//2004, 29//2006, 30//2008, 31//2011, 32//2012, 33//2014, 34//2016, 35//2018