XI 1976 Ottawa, Canada
XII 1979 Jerusalem, Israel
XIII 1982 Hamburg, Germany
XIV 1985 Helsinki, Finland
XV 1988 San Antonio, U.S.A.
XVI 1991 Kyoto, Japan
XVII 1994 Rio de Janeiro, Brazil
XVIII 1997 Nice, France
XIX 2000 Chicago, U.S.A.
XX 2003 Sydney, Australia
XXI 2006 Seoul, Korea
XXII 2009 Munich, Germany
XXIII 2012 Beijing, China
XXIV 2015, Toronto, Canada
XXV 2018, Prague, Czech Republic
