| Year | Countries | % Correct |
|---|---|---|
| 1995 | Austria | 100%
|
| // | France | 100%
|
| // | Germany | 100%
|
| 1981 | Greece | 100%
|
| // | Italy | 100%
|
| // | Finland | 96%
|
| // | Hungary | 96%
|
| // | Ireland | 96%
|
| // | Latvia | 96%
|
| // | Luxembourg | 96%
|
| // | Netherlands | 96%
|
| // | Portugal | 96%
|
| // | Sweden | 96%
|
| 1958 | Belgium | 92%
|
| 2013 | Croatia | 92%
|
| 1973 | Denmark | 92%
|
| // | Estonia | 92%
|
| // | Lithuania | 92%
|
| // | Slovakia | 92%
|
| 1986 | Spain | 92%
|
| 2004 | Czech Republic | 88%
|
| // | Poland | 88%
|
| // | Slovenia | 88%
|
| // | Romania | 81%
|
| 2007 | Bulgaria | 77%
|
| // | Cyprus | 77%
|
| // | Malta | 65%
|