| Place | Country | Date | Year | |
|---|---|---|---|---|
| 1st | Brussels | Belgium | 11 - 14 April | 1968 |
| 2nd | Brussels | Belgium | 09 - 12 April | 1971 |
| 3rd | Bukarest | Romania | 18 - 22 May | 1975 |
| 4th | Brussels | Belgium | 23 - 26 May | 1979 |
| 5th | Copenhagen | Denmark | 09 - 14 May | 1983 |
| 6th | Budapest | Hungary | 14 - 21 June | 1987 |
| 7th | Sofia | Bulgaria | 25 - 31 March | 1991 |
| 8th | Ramat Gan | Israel | 06 - 13 May | 1995 |
| 9th | Izmir | Turkey | 10 - 17 April | 1999 |
| 10th | Budapest | Hungary | 06 - 12 April | 2003 |
| 11th | Malmø | Sweden | 24 - 31 March | 2007 |
| 12th | Czestochowa | Poland | 02 - 08 May | 2011 |
| 13th | Baden | Austria | 06 - 12 September | 2015 |
