| Year(s) | Answer | % Correct |
|---|---|---|
| 1982,1984,1988 | United Kingdom | 100%
|
| 1981(2),1985,1987,1988 | Canada | 98%
|
| 1982(2),1984,1985 | France | 98%
|
| 1982(2),1985(2),1987(2) | Germany | 96%
|
| 1981,1982,1983,1986,1988 | Mexico | 96%
|
| 1988 | Russia | 96%
|
| 1984 | China | 94%
|
| 1983,1986 | Japan | 94%
|
| 1985 | Spain | 94%
|
| 1982 | Brazil | 91%
|
| 1982,1987 | Italy | 91%
|
| 1985 | Portugal | 91%
|
| 1984 | Ireland | 89%
|
| 1985,1988 | Belgium | 83%
|
| 1983 | South Korea | 83%
|
| 1985 | Switzerland | 79%
|
| 1982 | Colombia | 70%
|
| 1988 | Finland | 64%
|
| 1986 | Iceland | 60%
|
| 1982,1987 | Vatican City | 53%
|
| 1986 | Indonesia | 51%
|
| 1982 | Costa Rica | 47%
|
| 1982 | Honduras | 45%
|
| 1982 | Jamaica | 40%
|
| 1986 | Grenada | 30%
|
| 1982 | Barbados | 28%
|