المنطقة
India
9
Germany (West)
7
Sri Lanka
5
Germany
4
Developing countries
3
European Economic Community countries
3
Indonesia
3
Malaysia
3
New Zealand
3
Soviet Union
2
Sweden
2
Switzerland
2
United States
2
Alemania (República Federal, 1949 1990)
1
Bangladesh
1
China
1
Europe
1
Europe, Southern
1
Great Britain
1
Italian Somaliland
1
Italy
1
Kazakhstan
1
Nigeria
1
Pakistan
1
Trinidad and Tobago
1
Turkey
1