Region
Afghanistan
4
Africa, Sub-Saharan
1
Albania
2
Algeria
4
Andorra
2
Angola
2
Antigua and Barbuda
3
Argentina
8
Armenia
1
Armenia (Republic)
3
Ascension
2
Ascension Island (Atlantic Ocean)
1
Australia
12
Austria
1
Azerbaijan
3
Baghdad
1
Bahamas
4
Bahrain
2
Bandiagara Caves (Mali)
2
Bangladesh
2
Barbados
3
Belarus
1
Belgium
5
Belize
3
Benin
2
Bermuda Islands
1
Bolivia
3
Bosnia and Hercegovina
3
Botswana
1
Brazil
10
Brunei
1
Bulgaria
6
Burma
2
Burundi
1
Cambodia
2
Cameroon
1
Canada
26
Cape Verde
1
Cayman Islands
2
Cernavodă
1
Chile
6
China
15
Colombia
5
Comoros
1
Corozal (Ancon)
1
Costa Rica
5
Croatia
3
Cuba
4
Curaçao
1
Curaðcao
1
more ...