Region
United States
146
Japan
22
Great Britain
20
China
8
Canada
6
Developing countries
6
East Asia
6
England
6
New York (State)
3
Boston
2
Colombia
2
Europe
2
India
2
London (England)
2
Massachusetts
2
Taiwan
2
Asia
1
Australia
1
Chile
1
Commercial treaties
1
East Indies
1
Estados Unidos
1
European Economic Community countries
1
European Union countries
1
France
1
Israel
1
Jap⯮
1
Lancashire
1
New Jersey
1
North America
1
Pennsylvania
1
Philippines
1
Turkey
1
Zimbabwe
1