| Year of admission | Answer | % Correct |
|---|---|---|
| 1950 | United Kingdom | 96%
|
| 1999 | Albania | 95%
|
| 1953 | Austria | 94%
|
| 1950 | France | 94%
|
| 1952 | Germany | 94%
|
| 1950 | Ireland | 94%
|
| 1999 | Andorra | 93%
|
| 1950 | Greece | 93%
|
| 1950 | Sweden | 93%
|
| 1993 | Ukraine | 91%
|
| 2005 | Armenia | 90%
|
| 1993 | Croatia | 90%
|
| 1956 | Iceland | 90%
|
| 1950 | Portugal | 90%
|
| 1993 | Russia | 90%
|
| 2006 | Serbia | 90%
|
| 1950 | Denmark | 89%
|
| 1950 | Finland | 89%
|
| 1950 | Italy | 89%
|
| 1993 | Latvia | 89%
|
| 1950 | Norway | 89%
|
| 1993 | Slovakia | 89%
|
| 1993 | Slovenia | 89%
|
| 1950 | Turkey | 89%
|
| 1993 | Belarus | 88%
|
| 1950 | Belgium | 88%
|
| 1993 | Estonia | 88%
|
| 1957 | Israel | 88%
|
| 1993 | Lithuania | 88%
|
| 1950 | Netherlands | 88%
|
| 1955 | Spain | 88%
|
| 1993 | Bosnia-Herzegovina | 86%
|
| 2006 | Montenegro | 86%
|
| 1993 | Romania | 86%
|
| 1995 | San Marino | 86%
|
| 1969 | Cyprus | 85%
|
| 1994 | Czech Republic | 85%
|
| 1950 | Luxembourg | 85%
|
| 1993 | Hungary | 84%
|
| 1970 | Malta | 84%
|
| 1993 | Poland | 84%
|
| 2007 | Azerbaijan | 83%
|
| 1993 | Bulgaria | 83%
|
| 1950 | Switzerland | 83%
|
| 1993 | Moldova | 81%
|
| 1950 | Monaco | 81%
|
| 2005 | Georgia | 79%
|
| 1993 | F.Y.R. Macedonia | 77%
|
| 1950 | Morocco | 74%
|
| 1985 | Egypt | 60%
|
| 1970 | Algeria | 59%
|
| 1950 | Tunisia | 57%
|
| 1950 | Vatican City | 57%
|
| 1980 | Lebanon | 56%
|
| 1974 | Libya | 53%
|
| 1970 | Jordan | 48%
|