2017: Athens
2016: Zürich, Warsaw, Athens, St Petersburg, Ferrara
2015: Warsaw, Athens, Istanbul, St Petersburg
2014: Zürich, Paris, Glasgow, Athens, Istanbul, Dubai, Florida, Sibiu.
2013: Otwock, São Paulo, Athens, Stuttgart, Wiesbaden
2012: Zürich, Vienna, Athens, Salvador (Bahia), Tel Aviv
2011: Athens, Vienna, Ferrara, Wiesbaden
2010: Zürich, Barcelona, Athens, Osnabrück
2009: Münster, Athens, Ferrara, Hamburg, Wiesbaden
2008: Zürich, Berlin, São Paulo, Osnabrück, Ferrara
2007: Ferrara, Leipzig, Wiesbaden
2006: Zürich, Nice, Seoul, Léon (Mexico), Ferrara, Graz, Szczyrk
2005: Geneva, Nottingham
2004: Chicago, Hamburg, Beijing, Nottingham, Riga
2003: Kyoto, Moscow, Copenhagen
2002: Warsaw, Bregenz, Basel, Chicago
2001: Venice, Berlin, Brussels, Nürnberg, Zürich, Edinburgh
2000: Vienna, Cancun, Pittsburgh, Zürich
1999: Vienna, Montevideo, São Paulo, Pretoria, Freiburg
1998: Tours, Zürich, Taipei
1997: Vienna, São Paulo, Lund, Ulm
1996: Houston, São Paulo, Linz, Montréal, Budapest
1995: Taipei, Vienna, Sicily, São Paulo, Copenhagen, Indianapolis, Kos Island
1994: Rio de Janeiro, Sapporo, Vienna, Basel
1993: Heidelberg, Mexico City, lnnsbruck
1992: Rhodes
Last modified 26 February 2019