|July 5-13, 2015
||Gwangju, South Korea
||1st-USA; 2nd-Canada; 3rd-Russia; 4th-Japan; 5th-Australia; 6th-Czech Republic; 7th-Taiwan; 8th-Hungary; 9th-Italy; 10th-Sweden; 11th-China; 12th-Mexico; 13th-Brazil; 14th-South Korea; 15th-Mozambique; 16th-Uganda.
|July 7-16, 2013
||1st-USA; 2nd-Russia; 3rd-Australia; 4th-Taiwan; 5th-Sweden; 6th-Czech Republic; 7th-Hungary; 8th-Canada; 9th-Ukraine; 10th-China; 11th-Poland; 12th-Brazil; 13th-Japan; 14th-Finland; 15th-Mali; 16th-Mongolia.
|Aug. 13-21, 2011
||1st-USA; 2nd-Taiwan; 3rd-Australia; 4th-Sweden; 5th-Russia; 6th-Canada; 7th-Brazil; 8th-Finland; 9th-Czech Republic; 10th-China; 11th-Lithuania; 12th-Japan; 13th-Slovakia; 14th-Great Britain; 15th-Poland.
|July 2-11, 2009
||1st-USA; 2nd-Russia; 3rd-Australia; 4th-Czech Republic; 5th-Poland; 6th-Great Britain; 7th-Taiwan; 8th-Slovakia; 9th-Japan; 10th-China; 11th-Serbia; 12th-Hungary; 13th-Turkey; 14th-France; 15th-Canada; 16th-Mozambique.
|Aug. 11-21, 2005
||1st-USA; 2nd-Serbia & Montenegro; 3rd-Australia; 4th-Russia; 5th-Taiwan; 6th-Germany; 7th-Poland; 8th-Turkey; 9th-Czech Republic; 10th-Slovenia; 11th-Canada; 12th-Japan; 13th-China; 14th-Sweden; 15th-Lithuania; 16th-Great Britain; 17th-Ireland; 18th-Lebanon; 19th-Thailand; 20th-Republic of South Africa.
|Aug. 22-31, 2001
||1st-USA; 2nd-China; 3rd-Czech Republic; 4th-Lithuania; 5th-Russia; 6th-Canada; 7th-Brazil; 8th-Netherlands; 9th-Sweden; 10th-Yugoslavia; 11th-Taiwan; 12th-Mexico; 13th-Japan; 14th-Portugal; 15th-South Africa; 16th-Peru.
|July 3-12, 1999
||Palma de Mallorca, Spain
||1st-Spain; 2nd-USA; 3rd-Russia; 4th-Ukraine; 5th-Lithuania; 6th-Taiwan; 7th-Canada; 8th-Portugal; 9th-China; 10th-Sweden; 11th-Czech Republic; 12th-Japan; 13th-Brazil; 14th-Mexico; 15th-South Korea; 16th-South Africa.
|Aug. 22-30, 1997
||Trapani, Sicily, Italy
||1st-USA; 2nd-Cuba; 3rd-Czech Republic; 4th-Italy; 5th-Russia; 6th-Latvia; 7th-Portugal; 8th-Sweden; 9th-Canada; 10th-Brazil; 11th-China; 12th-South Korea; 13th-Japan; 14th-Turkey; 15th-Bulgaria; 16th-South Africa.
|Aug. 24 - Sept. 2, 1995
||1st-Italy; 2nd-USA; 3rd-Japan; 4th-Russia; 5th-Yugoslavia; 6th-Czech Republic; 7th-Canada; 8th-South Korea; 9th-China; 10th-Portugal; 11th-Spain; 12th-Brazil; 13th-Mexico; 14th-Peru; 15th-South Africa; 16th-Hong Kong.
|July 8-7, 1993
||Buffalo, New York
||1st-China; 2nd-Cuba; 3rd-USA; 4th-Lithuania; 5th-Germany; 6th-Russia; 7th-Ukraine; 8th-Japan; 9th-Kazakhstan; 10th-Sweden; 11th-Romania; 12th-Israel; 13th-Taiwan; 14th-Canada; 15th-Hong Kong.
|July 15-24, 1991
||1st-USA; 2nd-Spain; 3rd-Canada; 4th-China; 5th-Soviet Union; 6th-Czechoslovakia; 7th-Hungary; 8th-Romania; 9th-Sweden; 10th-Germany; 11th-Taiwan; 12th-Japan; 13th-Great Britain; 14th-Mexico; 15th-Ireland; 16th-Guam.
|July 6-31, 1987
||1st-Yugoslavia; 2nd-Soviet Union; 3rd-China; 4th-Bulgaria; 5th-USA; 6th-Canada; 7th-Czechoslovakia; 8th-Sout Korea; 9th-Spain; 10th-Sweden; 11th-Finland; 12th-Australia; 13th-Cuba; 14th-Hungary; 15th-Japan; 16th-Poland; 17th-South Korea; 18th-Great Britain.
|July 24 - Aug. 4, 1985
||1st-Soviet Union; 2nd-USA; 3rd-Yugoslavia; 4th-Canada; 5th-China; 6th-Japan; 7th-South Korea; 8th-Australia; 9th-Great Britain; 10th-Hong Kong.
|July 1-11, 1983
||1st-USA; 2nd-Romania; 3rd-Yugoslavia; 4th-China; 5th-Federal Republic of Germany; 6th-Canada; 7th-Spain; 8th-France; 9th-Japan; 10th-Great Britain; 11th-Hong Kong.
|July 15-29, 1981
||1st-Soviet Union; 2nd-USA; 3rd-Romania; 4th-China; 5th-Hungary; 6th-Canada; 7th-Czechoslovakia; 8th-Yugoslavia.
|Sept. 2-13, 1979
||Mexico City, Mexico
||1st-USA; 2nd-Cuba; 3rd-Canada; 4th-Bulgaria; 5th-Soviet Union; 6th-Poland; 7th-Yugoslavia; 8th-Mexico.
|Aug. 17-31, 1977
||1st-Soviet Union; 2nd-USA; 3rd-Bulgaria; 4th-Cuba; 5th-China; 6th-Canada; 7th-Romania; 8th-Yugoslavia; 9th-Poland; 10th-Italy; 11th-Czechoslovakia; 12th-Hungary; 13th-Federal Republic of Germany; 14th-Japan; 15th-France; 16th-Denmark.
|Aug. 16-24, 1973
Moscow, Soviet Union
||1st-Soviet Union; 2nd-USA; 3rd-South Korea; 4th-Cuba; 5th-Bulgaria; 6th-Romania; 7th-Hungary; 8th-Poland; 9th-Czechoslovakia; 10th-Canada; 11th-Yugoslavia; 12th-France; 13th-Mexico; 14th-Denmark; 15th-Lebanon; 16th-Iran.