Region
Africa
5
America
1
Aregntina
1
Argentina
2
Azerbaijan
1
Bolivia
1
Brazil
2
Cambodia
1
Canada
1
Central America
2
China
3
Developed countries
1
Developing countries
4
East Asia
3
Europe
5
European Union countries
1
Germany
1
Great Britain
2
Greece
2
Hong Kong (China)
1
India
3
Jamaica
1
Japan
2
Latin America
2
New Zealand
2
Nigeria
1
North America
2
Peru
2
Russia (Federation)
4
South Africa
3
South America
1
Thailand
1
Uganda
1
United States
74
Washington (D.C.)
7
Western countries
6
Zimbabwe
1