Geographic Subject
United States
Germany (West)
105
Great Britain
79
Switzerland
72
Germany
66
Europe
27
France
23
7.150
21
États-Unis
21
Sweden
17
Etats-Unis
14
Netherlands
12
4.415
9
European Economic Community countries
9
Soviet Union
9
Suisse
9
China
8
Canada
7
European Union countries
5
Middle East
5
4.480
4
EE.UU
4
England
4
Finland
4
Iran
4
Italy
4
Japan
4
Latin America
4
Mexico
4
New York (State)
4
America
3
Australia
3
Denmark
3
Developing countries
3
Israel
3
Korea
3
Nicaragua
3
Scotland
3
4
2
Allemagne (République fédérale)
2
Austria
2
Central America
2
Egypt
2
Greece
2
Hamburg
2
India
2
New York
2
Russia
2
Russia (Federation)
2
Russie
2
more ...