Ámbito geográfico
Germany
12
Indonesia
12
Switzerland
9
Great Britain
8
France
7
Germany (West)
7
Europe
6
United States
6
India
5
Asia, Southeastern
4
Sweden
3
Argentina
2
European Economic Community countries
2
Singapore
2
Soviet Union
2
Sri Lanka
2
Africa
1
Arabian Peninsula
1
Austria
1
Barbados
1
Burma
1
European Union countries
1
Finland
1
Iraq
1
Korea
1
Malaysia
1
Mexico
1
Russia (Federation)
1
Sakha
1
Sudan
1
Thailand
1
Thailand, Northern
1
Zambia
1