Regija
Germany (West)
Switzerland
146
France
127
Germany
107
United States
105
4.415
53
Great Britain
45
European Economic Community countries
40
Germany (East)
39
Austria
27
Hannover
19
Europe
14
Greece
13
Netherlands
12
Turkey
11
Italy
10
North Rhine-Westphalia
9
Korea (South)
7
Soviet Union
7
Belgium
6
Japan
6
Lower Saxony
6
Prussia
6
Spain
6
Sweden
6
Allemagne (République fédérale)
5
Baden-Württemberg
5
Korea
5
7.150
4
Israel
4
Suisse
4
4.240
3
Allemagne (Ouest)
3
Bavaria
3
Berlin
3
Europe, Eastern
3
Hamburg
3
Rhine River
3
4.210
2
4.480
2
Afghanistan
2
Arab countries
2
Brazil
2
Bremen
2
Canada
2
Communist countries
2
Denmark
2
Developing countries
2
Giessen (Hesse)
2
Grande-Bretagne
2
več ...