2015: Britain
2014: Switzerland
2013: Czech Republic
2012: Czech Republic
2011: Spain
2010: Serbia
2009: Spain
2008: Spain
2007: United States
2006: Russia
2005: Croatia
2004: Spain
2003: Australia
2002: Russia
2001: France
2000: Spain
1999: Australia
1998: Sweden
1997: Sweden
1996: France
1995: United States
1994: Sweden
1993: Germany
1992: United States
1991: France
1990: United States
Most victories
32: United States
28: Australia
10: Britain
9: France
7: Sweden
5: Spain