Ciba Foundation 1972
Bordeaux 1974
Glasgow 1976
Freiburg 1978
Custer 1980
Tokyo 1982
Jerusalem 1984
Istanbul 1990
Ames 1992
Bordeaux 1994
Orlando 1996
Fukuoka 2000
Vienna 2002
Athens 2004
Cambridge 2006
Tianjin 2008
Chianciano 2010
Toulouse 2012
Blumenau 2014
Osaka 2023