| 1 | 05-06 January | 1984 | Essen, Germany |
| 2 | 01-02 November | 1986 | Lille, France |
| 3 | 10-11 February | 1987 | Oslo, Norway |
| 4 | 25-26 February | 1988 | Schladming, Austria |
| 5 | 10-13 October | 1991 | Athen, Greece |
| 6 | 07-11 October | 1992 | Bolzano, Italy |
| 7 | 20-24 October | 1993 | Amsterdam, Netherlands |
| 8 | 19-23 October | 1994 | Sundsvall, Sweden |
| 9 | 11-15 October | 1995 | Budapest, Hungary |
| 10 | 09-13 October | 1996 | Koblenz, Germany |
| 11 | 15-19 October | 1997 | Moscow, Russia |
| 12 | 23-27 September | 1998 | Kiev, Ukraine |
| 13 | 20-24 August | 1999 | Prague, Czech Republic |
| 14 | 25-29 October | 2000 | Graz, Austria |
| 15 | 24-28 October | 2001 | Vilnius, Lithuania |
| 16 | 12-15 December | 2002 | Lisboa, Portugal |
| 17 | 22-26 October | 2003 | Nicosia, Cyprus |
| 18 | 21-24 October | 2004 | Athen, Greece |
| 19 | 19-22 October | 2005 | Manchester, Great Britain |
| 20 | 21-23 April | 2006 | Kiev, Ukraine |
| 21 | 18-20 November | 2006 | Moscow, Russia |
| 22 | 18-21 October | 2007 | Bratislava, Slovakia |
| 23 | 17-20 April | 2008 | Manchester, Great Britain |
| 24 | 04-07 December | 2008 | Santiago de Compostela, Spain |
| 25 | 26-29 November | 2009 | Rome, Italy |
| 26 | 18-21 March | 2010 | Athens, Greece |
| 27 | 07-10 October | 2010 | Brugge, Belgium |
| 28 | 03-06 November | 2011 | Istanbul, Turkey |
| 29 | 09-10 March | 2012 | Athen, Greece |
| 30 | 07-08 November | 2012 | Antalya, Turkey |
| 31 | 23-24 October | 2013 | Essen, Germany |
| 32 | 11-14 June | 2014 | Ål, Norway |
| 33 | 6-9 November | 2014 | Madrid, Spain |
| 34 | 4-5 November | 2015 | Munich, Germany |
| 35 | 1-2 April | 2016 | Helsinki, Finland |
