Region
United States
29
Developing countries
5
India
3
Latin America
2
Pennsylvania
2
Arkansas
1
Asia
1
Belgium
1
Bolivia
1
Brazil
1
Canada
1
China
1
Chine
1
Cuba
1
Europe
1
Great Britain
1
Guangdong Sheng
1
Guatemala
1
Kouang-tong
1
Nepal
1
OECD countries
1
Philadelphia
1
Philippines
1
Pittsburgh
1
Pudukkottai (District)
1
São Paulo (State)
1
Tamil Nadu
1
Tamil Nadu (India)
1