| Année | Pays | % Correct |
|---|---|---|
| 1975 | France | 97%
|
| 1955 | Union Soviétique | 76%
|
| 1974 | Suède | 75%
|
| 1979 | Norvège | 73%
|
| 1978 | Italie | 70%
|
| 1957 | Chine | 65%
|
| 1973 | Danemark | 62%
|
| 1975 | Autriche | 46%
|
| 1977 | Yougoslavie | 45%
|
| 1978 | Luxembourg | 39%
|
| 1975 | Viêt Nam | 19%
|
| 1965 | Cuba | 18%
|
| 1974 | Singapour | 8%
|
| 1973 | Tunisie | 7%
|