| Jahr | ein | aus | ||
| 2023 | Western Tokyo | Japan | ||
| 2022 | Seattle | USA | ||
| 2019 | Hamburg | Deutschland | ||
| 2019 | Kumamoto | Japan | ||
| 2017 | Piracicaba | Brasilien | Baku/Tiflis | Azerbaijan/Georgien |
| 2016 | Québec | Canada | Neuseeland | |
| 2015 | W.Colorado | USA | ||
| 2014 | Tamworth | Australien | Japan | |
| 2013 | Nagasaki | Japan | ||
| 2012 | Baton Rouge | Lousiana, USA | ||
| 2011 | North Bay | Kanada | Curitiba | Brasilien |
| 2010 | Ottawa | Kanada | ||
| 2009 | Minnesota-Twin Cities | USA | ---------- | |
| 2008 | Curitiba | Brasilien | Lethbridge | Kanada |
| 2007 | Greater Denver | Colorado, USA | ||
| 2006 | Lethbridge | Kanada | Viña del Mar | Chile |
| 2005 | Viña del Mar | Chile | --------- | |
| 2005 | West of Scotland | UK | ||
| 2004 | Campinas | Brasilien | ||
| 2003 | Connecticut | USA | West Alajuela | Costa Rica |
| 2002 | Libertad & Quito | Peru & Ecuador | ||
| 2002 | Greater Des Moines | Iowa, USA | ||
| 2001 | Fukuoka | Japan | ||
| 2000 | ---------- | Cape Town | Südafrika | |
| 1999 | Tuxtla-Gutierrez | Mexiko | ||
| 1998 | Newcastle-on-Tyne | UK | Bergen | Norwegen |
| 1997 | Western Bay of Plenty | Neuseeland | Tuxtla-Gutierrez | Mexiko |
| 1996 | Sankt Petersburg | Russland | ||
| 1996 | Bergen | Norwegen | ||
| 1995 | Pioneer Valley | Mass., USA | Sankt-Peterburg | Russland |
| 1994 | Madison | Wisconsin, USA | Tweed Valley & Cairns | Australien |
| 1993 | Tokio | Japan | ||
| 1992 | North Colorado | USA | Chiang Mai | Thailand |
| 1992 | Chiang Mai | Thailand | ||
| 1990 | Orangeburg | South Carolina, USA | Olympia | Washington, USA |
| 1989 | New Hampshire Sea Coast | USA | West Kentucky | USA |
| 1989 | Campinas | Brasilien | ||
| 1988 | Denver & Atlanta | Colorado & Georgia, USA | Brasilia & Campinas | Brasilien |
| 1987 | Dubuque | Iowa, USA | Ashville | North Carolina, USA |
| 1986 | Richmond | Virginia, USA | Sendai | Japan |
| 1985 | Cardiff | UK | Cardiff | UK |
| 1984 | Connecticut | USA | Connecticut | USA |
| 1983 | Jerry Hill | New Jersey, USA | Jerry Hill | New Jersey, USA |
| 1982 | Dubuque | Iowa, USA | Dubuque | Iowa, USA |
| 1981 | Houston | Texas,USA |
