Region
United States
318
China
46
Developing countries
12
Mexico
11
Africa
10
Japan
10
European Union countries
8
India
8
Iran
7
Europe, Central
6
Europe, Eastern
6
Rwanda
6
Asia
5
Canada
5
Estonia
5
Indonesia
5
Latvia
5
Romania
5
Russia (Federation)
5
Europe
4
Great Britain
4
Saudi Arabia
4
Africa, Sub-Saharan
3
BRIC countries
3
Bulgaria
3
Egypt
3
Foreign countries
3
Germany
3
Hungary
3
Jamaica
3
Korea (South)
3
Lithuania
3
Malaysia
3
Mongolia
3
Pacific Area
3
Poland
3
Sri Lanka
3
Tunisia
3
Uruguay
3
Albania
2
Argentina
2
Armenia (Republic)
2
Asia, Eastern
2
Australia
2
Bangladesh
2
Belarus
2
Brazil
2
Chile
2
Czechoslovakia
2
Côte d'Ivoire
2
more ...