Àmbit geogràfic
United States
16
India
11
China
4
Pakistan
4
Southeast Asia
4
Sweden
4
France
3
Germany (West)
3
Indonesia
3
Japan
3
Asia
2
Asia, Southeastern
2
Australia
2
El Salvador
2
Russia
2
Soviet Union
2
Switzerland
2
4.935
1
Africa
1
Austria
1
Bangladesh
1
East Asia
1
Finland
1
Germany
1
Indian Ocean Region
1
North Atlantic Region
1
Pacific Area
1
Russian Far East (Russia)
1
Singapore
1