Subject Region
United States
193
Germany
125
Europe
70
Spain
40
France
38
Japan
31
Poland
29
Germany (East)
24
Canada
22
China
21
Soviet Union
21
Great Britain
20
Israel
20
Latin America
20
Europe, Eastern
19
Australia
17
Chile
13
East Asia
13
Germany (West)
13
Greece
13
Southern States
13
Ireland
12
Italy
12
South Africa
12
Ukraine
12
Argentina
11
Russia (Federation)
11
Turkey
11
Colombia
10
Palestine
10
Peru
10
Cuba
9
Czech Republic
9
Europe, Central
9
India
9
Lebanon
9
Mexico
9
Pennsylvania
9
Russia
9
Espana
8
Northern Ireland
8
Africa
7
Algeria
7
Balkan Peninsula
7
England
7
Scotland
7
Berlin (Germany)
6
El Salvador
6
Prague
6
Rome
6
more ...