Year | Where | 1st | 2nd | 3rd |
1981 | Edmonton, Canada | Japan | USA | China |
1985 | Fargo, USA | China | Japan | USA |
1987 | Oklahoma City, USA | USA | China | Japan |
1991 | Adelaide, Australia | Japan | USA | China |
1995 | Normal, USA | USA | Japan | Australia |
1999 | Taipei, Taiwan | Japan | USA | Chinese Taipei |
2003 | Nanjing, China | Japan | USA | Australia |
