Region
United States
30
Africa
15
Tanzania
6
Africa, Sub-Saharan
5
India
4
Uganda
4
Caribbean Area
3
Confederate States of America
3
East Asia
3
Italy
3
Asia, Central
2
China
2
Developing countries
2
Ethiopia
2
Ghana
2
London (England)
2
Malawi
2
Rome
2
Soviet Union
2
America
1
Arabian Peninsula
1
Argentina
1
Asia
1
Burkina Faso
1
Cambodia
1
Canal Zone
1
Caucasus, South
1
Great Britain
1
Greece
1
Israel
1
Kampala
1
Kenya
1
North America
1
Ohio
1
Palestine
1
Panama
1
Rome (Italy)
1
Rwanda
1
Senegal
1
Singapore
1
Tennessee River Region
1
USSR
1