Region
United States
348
European Union countries
10
Colorado
8
Japan
7
China
4
Mexican-American Border Region
4
Islamic countries
3
Great Britain
2
Hong Kong
2
India
2
Switzerland
2
Antigua
1
Antigua and Barbuda
1
Australia
1
Austria
1
Bahrain
1
Bangladesh
1
Burma
1
California
1
Developing countries
1
Europe
1
European Economic Community countries
1
Isle of Man
1
Korea (North)
1
Kuwait
1
Liechtenstein
1
Luxembourg
1
Malaysia
1
Massachusetts
1
Nauru
1
New Hampshire
1
Nigeria
1
North America
1
Pennsylvania
1
Singapore
1
Sweden
1
Thailand
1