| Year | Country | % Correct |
|---|---|---|
| 1973 | Sweden | 93%
|
| 1976 | Canada | 90%
|
| 1979 | Norway | 90%
|
| 1972 | Finland | 88%
|
| 1978 | Denmark | 87%
|
| 1949 | Germany | 85%
|
| 1944 | Iceland | 82%
|
| 1968 | Austria | 81%
|
| 1976 | Portugal | 74%
|
| 1979 | Luxembourg | 69%
|
| 1865 | San Marino | 58%
|
| 1962 | Monaco | 54%
|
| 1969 | Vatican City | 45%
|
| 1903 | Panama | 42%
|
| 1863 | Venezuela | 42%
|
| 1910 | Colombia | 41%
|
| 1907 | Uruguay | 41%
|
| 1877 | Costa Rica | 40%
|
| 1906 | Ecuador | 38%
|
| 1956 | Honduras | 38%
|
| 1979 | Nicaragua | 37%
|
| 1966 | Dominican Republic | 25%
|
| 1978 | Tuvalu | 8%
|
| 1979 | Kiribati | 7%
|
| 1978 | Solomon Islands | 7%
|