Region
United States
175
European Union countries
22
China
20
Europe
18
Islamic countries
11
Japan
11
India
9
Developing countries
7
Switzerland
7
Germany
6
Great Britain
5
Italy
5
Asia
4
Mexico
4
Russia (Federation)
4
Africa
3
Balkan Peninsula
3
Brazil
2
Cambodia
2
Colorado
2
East Asia
2
Europe, Central
2
Europe, Eastern
2
France
2
Latin America
2
Netherlands
2
Papal States
2
South Africa
2
Sweden
2
America
1
Austria
1
Burma
1
California
1
Central America
1
Cyprus
1
Developed countries
1
England
1
European Economic Community countries
1
Greece
1
Group of Seven countries
1
Hinsdale
1
Hong Kong
1
Iceland
1
Illinois
1
Indonesia
1
Kenya
1
Korea (South)
1
Laos
1
Malaysia
1
Massachusetts
1
more ...