Geographic Subject
Germany
1,285
Switzerland
930
Sweden
725
France
712
Netherlands
367
Germany (West)
346
United States
167
Great Britain
149
Europe
101
Finland
96
Developing countries
83
Soviet Union
65
China
62
Indonesia
60
4.050
59
Denmark
58
India
58
European Economic Community countries
54
Poland
53
Romania
51
Turkey
46
Italy
44
Prussia
43
Egypt
39
4.210
38
4.415
38
Austria
38
Belgium
38
Iran
37
Greece
36
Hungary
36
Yugoslavia
35
Japan
34
Bulgaria
32
Germany (East)
30
Zurich
29
Spain
27
Hamburg
26
Mexico
25
Africa
24
Kenya
24
Morocco
24
Stockholm
23
Zurich (Canton)
23
Baden
22
Bavaria
22
Colombia
22
England
20
Estonia
20
Latin America
20
more ...