Region
United States
23
Denmark
2
India
2
Russia (Federation)
2
Australia
1
Bangladesh
1
Chile
1
Czech Republic
1
Ethiopia
1
France
1
Great Britain
1
Greenland
1
Italy
1
Kiribati
1
Korea (South)
1
Netherlands
1
North Macedonia
1
Norway
1
Nuclear energy
1
Outer space
1
Poland
1
Singapore
1
Slovakia
1
South Africa
1
Switzerland
1