Region
Colombia
3
United States
3
Europe
2
Israel
2
Middle East
2
Africa
1
Egypte
1
Etats-Unis
1
European Economic Community countries
1
European Union countries
1
États-Unis
1
Great Britain
1
Jordan
1
Jordan River Valley
1
Moyen-Orient
1
Nile River Watershed
1
Nile River Watershed Region
1
North America
1
Outer space
1
Proche-Orient
1
Somalie
1
South Africa
1
Südafrika (Staat)
1
URSS
1