| Year | Country | % Correct |
|---|---|---|
| 2025 | Austria | 100%
|
| 2011 | Azerbaijan | 100%
|
| 1986 | Belgium | 100%
|
| 2026 | Bulgaria | 100%
|
| 2013 | Denmark | 100%
|
| 2001 | Estonia | 100%
|
| 2006 | Finland | 100%
|
| 1977 | France | 100%
|
| 2010 | Germany | 100%
|
| 2005 | Greece | 100%
|
| 1996 | Ireland | 100%
|
| 2018 | Israel | 100%
|
| 2021 | Italy | 100%
|
| 2002 | Latvia | 100%
|
| 1983 | Luxembourg | 100%
|
| 1971 | Monaco | 100%
|
| 2019 | Netherlands | 100%
|
| 2009 | Norway | 100%
|
| 2017 | Portugal | 100%
|
| 2008 | Russia | 100%
|
| 2007 | Serbia | 100%
|
| 1969 | Spain | 100%
|
| 2023 | Sweden | 100%
|
| 2024 | Switzerland | 100%
|
| 2003 | Türkiye | 100%
|
| 2022 | Ukraine | 100%
|
| 1997 | United Kingdom | 100%
|
| 1989 | Yugoslavia | 100%
|