| Year | Answer | % Correct |
|---|---|---|
| 1985 | Norway | 99%
|
| 1995 | Norway | 99%
|
| 2009 | Norway | 99%
|
| 2017 | Portugal | 99%
|
| 1974 | Sweden | 99%
|
| 1984 | Sweden | 99%
|
| 1991 | Sweden | 99%
|
| 1999 | Sweden | 99%
|
| 2012 | Sweden | 99%
|
| 2015 | Sweden | 99%
|
| 2004 | Ukraine | 99%
|
| 2016 | Ukraine | 99%
|
| 1967 | United Kingdom | 99%
|
| 1969 | United Kingdom | 99%
|
| 1976 | United Kingdom | 99%
|
| 1981 | United Kingdom | 99%
|
| 1963 | Denmark | 98%
|
| 2000 | Denmark | 98%
|
| 2013 | Denmark | 98%
|
| 1982 | Germany | 98%
|
| 2010 | Germany | 98%
|
| 1970 | Ireland | 98%
|
| 1980 | Ireland | 98%
|
| 1987 | Ireland | 98%
|
| 1992 | Ireland | 98%
|
| 1993 | Ireland | 98%
|
| 1994 | Ireland | 98%
|
| 1996 | Ireland | 98%
|
| 1958 | France | 97%
|
| 1960 | France | 97%
|
| 1962 | France | 97%
|
| 1969 | France | 97%
|
| 1977 | France | 97%
|
| 2008 | Russia | 97%
|
| 1956 | Switzerland | 97%
|
| 1988 | Switzerland | 97%
|
| 1966 | Austria | 96%
|
| 2014 | Austria | 96%
|
| 1986 | Belgium | 96%
|
| 2006 | Finland | 96%
|
| 1964 | Italy | 96%
|
| 1990 | Italy | 96%
|
| 1968 | Spain | 96%
|
| 1969 | Spain | 96%
|
| 1957 | The Netherlands | 96%
|
| 1959 | The Netherlands | 96%
|
| 1969 | The Netherlands | 96%
|
| 1975 | The Netherlands | 96%
|
| 2005 | Greece | 95%
|
| 2003 | Turkey | 94%
|
| 2001 | Estonia | 93%
|
| 1961 | Luxembourg | 93%
|
| 1965 | Luxembourg | 93%
|
| 1972 | Luxembourg | 93%
|
| 1973 | Luxembourg | 93%
|
| 1983 | Luxembourg | 93%
|
| 2007 | Serbia | 93%
|
| 2002 | Latvia | 92%
|
| 2011 | Azerbaijan | 91%
|
| 1978 | Israel | 91%
|
| 1979 | Israel | 91%
|
| 1998 | Israel | 91%
|
| 1989 | Yugoslavia | 86%
|
| 1971 | Monaco | 83%
|
| 1997 | United Kingdom | 80%
|