Region
Great Britain
6
Tropics
6
Africa
4
China
3
Developing countries
3
India
3
Japan
3
Africa, Sub-Saharan
2
Asia
2
Egypt
2
Afghanistan
1
Africa, East
1
Asia, Central
1
Australia
1
Australia, Northern
1
Brazil
1
China, Northwest
1
Europe
1
Fukushima-ken
1
Greece
1
Himalaya Mountains Region
1
Hindu Kush-Himalayan Region
1
Latin America
1
North America
1
Persian Gulf States
1
South America
1
South Asia
1
United States
1