| 1990 | – | First initiative: Portugal |
| 1991 | – | Hungary |
| 1992 | – | Switzerland |
| 1993 | – | Turkey |
| 1994 | – | Norway |
| 1995 | Slovenia | United Kingdom |
| 1996 | Belgium | Czech Republic |
| 1997 | Germany | The Netherlands |
| 1998 | Bulgaria / Sweden / Hungary | Slovenia |
| 1999 | Switzerland | France |
| 2000 | – | Estonia |
| 2001 | Slovenia | Sweden |
| 2002 | – | Yugoslavia |
| 2003 | – | Bulgaria |
| 2004 | Germany | Czech Republic & Slovak Republic |
| 2005 | Sweden | Portugal |
| 2006 | Belgium | France |
| 2007 | Estonia | Poland |
| 2008 | Austria | Hungary |
| 2009 | – | Romania |
| 2010 | Scotland | Latvia |
| 2011 | Switzerland & Slovenia | Germany |
| 2012 | Serbia & Poland | Belgium |
| 2013 | Spain | United Kingdom |
| 2014 | Montenegro | Russia |
| 2015 | Austria | The Netherlands |
| 2016 | Slovenia | Turkey (cancelled) |
| 2017 | – | Germany |
| 2018 | Czech Republic | Belgium |
| 2019 | Italy | Estonia & Finland |
| 2020 | Croatia (cancelled) | Bulgaria (cancelled) |
| 2021 | The Netherlands (cancelled) | Portugal (cancelled) |
| 2022 | – | Switzerland |
| 2023 | Austria | France |
| 2024 | Turkey | Sweden |
| 2025 | Czech Republic & Slovakia | Romania |
| 2026 | Hungary | Portugal |
