Region
Asia --
4
Europe --
4
Asia
3
East Asia --
3
European Union countries
2
21st century
1
Central America
1
Central America --
1
China --
1
Developing countries --
1
East Asia
1
Europe Union countries
1
European Union countries --
1
Europian Union countries --
1
Korea --
1
Latin America --
1
Malaysia --
1
Persian Gulf Region --
1
Southeast Asia
1
Southeast Asia --
1
United States --
1
United states --
1