Region
United States
Canada
13
France
13
Congo (Democratic Republic)
5
Belgium
2
Chad
2
Comoros
2
Djibouti
2
Gabon
2
Luxembourg
2
Mexico
2
Monaco
2
Morocco
2
Algeria
1
Bulgaria
1
Burkina Faso
1
Burundi
1
Cameroon
1
Central African Republic
1
Côte d'Ivoire
1
Estonia
1
Great Britain
1
Guinea
1
Haiti
1
Latvia
1
Lithuania
1
Madagascar
1
Matagorda Bay
1
Mauritania
1
Niger
1
North America
1
Outer space
1
Romania
1
Rwanda
1
Senegal
1
Slovakia
1
Slovenia
1
Switzerland
1
Texas
1
Togo
1
Yukon River (Yukon and Alaska)
1