| Australia | 2003, 2008 , 2010 |
| Austria | 2004 , 2007 , 2013 |
| Canada | 2004 , 2007 , 2010 , 2013 |
| Czech Republic | 2002 , 2004 , 2007 , 2010 , 2013 |
| Denmark | 2000 , 2004 , 2007 , 2010 , 2013 |
| Estonia | 2010 , 2013 |
| Finland | 2000 , 2004 , 2007 , 2010 , 2013 |
| France | 2000 , 2005 , 2010 |
| Germany | 2000 , 2004 , 2007 , 2010 , 2013 , 2015 |
| Greece | 2007 , 2010 , 2013 |
| Iceland | 2004 , 2007 , 2010 |
| Ireland | 2004 , 2007 , 2010 |
| Israel | 2010 |
| Italy | 2004 , 2008 , 2010 , 2014 |
| Luxembourg | 2004 , 2007 , 2010 , 2013 |
| Netherlands | 1999 , 2004 , 2007 , 2010 , 2013 |
| Norway | 2000 , 2004 , 2007 , 2010 , 2013 |
| Slovak Republic | 2004 , 2007 , 2010 , 2013 |
| Spain | 2007 , 2010 , 2013 |
| Sweden | 2000 , 2005 |
| United Kingdom | 1999 , 2004 , 2007 , 2010 2013 |
| United States | 2000 , 2004 , 2007 , 2010 , 2013 , 2016 |