Región
United States
21
China
19
Developing countries
12
Great Britain
10
Africa
5
Asia
5
European Union countries
5
India
4
England
3
Estados Unidos
3
Japan
3
Latin America
3
Indian Ocean Region
2
Ireland
2
Pacific Area
2
Argentina
1
Asia, Central
1
Australia
1
Bengal
1
Canada
1
Caribbean Area
1
East Asia
1
Egypt
1
Europe
1
Europe, Northern
1
European Economic Community countries
1
Former communist countries
1
Germany
1
Gran Bretaña
1
Greece
1
Korea
1
London
1
Malaysia
1
Mediterranean Region
1
Middle East
1
Russia (Federation)
1
Silk Road
1
South Africa
1
South Asia
1
Southeast Asia
1
Taiwan
1
Turkey
1
Uganda
1
Western countries
1