Subject Region
United States
73
Latin America
5
Soviet Union
5
Europe
4
Great Britain
3
West Bank
3
Middle East
2
Caribbean Area
1
Central America
1
Developing countries
1
Gaza Strip
1
Germany
1
Indian Ocean Region
1
Israel
1
Japan
1
Korea (South)
1
Micronesia (Federated States)
1
Pacific Islands (Trust Territory)
1
Philippines
1
Saudi Arabia
1
Taiwan
1
Ukraine
1