2019 Singapore
2018 Rio Grande do Sul
2017 Malaysia
2016 Malaysia
2015 Beijing
2014 Central Texas Chapter
2013 Seoul Chapter
2012 Rio Grande do Sul Chapter
2011 Rio Grande do Sul Chapter
2010 Peru Chapter
2009 Macau Joint Chapter
2008 Singapore Chapter
2007 Malaysia Chapter
2006 Shanghai Chapter
2005 Greece Chapter
2004 France Chapter
2003 None awarded
2002 Delhi
2001 Moscow
2000 Thailand
1999 Argentina
1998 None awarded
1997 Hong Kong
1996 Houston
1995 Poland
1994 Turkey
1993 Dallas/Fort Worth
1992 Syracuse
1991 NJ Coast, Hong Kong, Switzerland
1986 Tokyo
1985 Dallas/Fort Worth