2019, Liverpool united Kingdom
2018, Winterthur, Switserland
2017 Rovinje, Croatia
2016 Padua, Italia
2015, November,
Brussels2014,
November,
Berlin
2013, October, Bratislava



2012, October, Bordeaux
2011, September, Copenhagen
2010, June, Haarlem 
2009, May, Prague 
2008, May, Prague 
2007, May, Prague
2006, June, Leipzig
2005, May, Prague.
2004, Sept., Bratislava