| Year(s) | Answer | % Correct |
|---|---|---|
| 1972 | Canada | 100%
|
| 1972 | China | 100%
|
| 1969,1970 | Mexico | 100%
|
| 1972 | Russia | 100%
|
| 1969,1970,1974 | France | 97%
|
| 1969(2),1970,1971 | United Kingdom | 97%
|
| 1969 | Germany | 94%
|
| 1970 | Spain | 94%
|
| 1969 | India | 92%
|
| 1970 | Ireland | 92%
|
| 1969,1970 | Italy | 92%
|
| 1974 | Egypt | 89%
|
| 1972 | Poland | 89%
|
| 1971,1974 | Portugal | 89%
|
| 1972 | Iran | 86%
|
| 1974 | Israel | 86%
|
| 1969,1974 | Belgium | 83%
|
| 1969 | Vietnam | 83%
|
| 1969 | Pakistan | 81%
|
| 1974 | Saudi Arabia | 81%
|
| 1972 | Ukraine | 75%
|
| 1969 | Thailand | 72%
|
| 1969 | Indonesia | 69%
|
| 1974 | Jordan | 69%
|
| 1969 | Romania | 69%
|
| 1972,1974 | Austria | 67%
|
| 1974 | Belarus | 67%
|
| 1970 | Serbia | 64%
|
| 1974 | Syria | 58%
|
| 1969 | Philippines | 56%
|
| 1973 | Iceland | 47%
|
| 1969,1970 | Vatican City | 36%
|