What is the only continent (except Antarctic) without nuclear power plants?

Asia
206
Africa
2143
South America
967
Australia
6253
Australia is practically the only developed country not using electricity (indigenous or imported) from nuclear energy. Australia's abundance of cheap coal, conveniently located to population centers, has ruled nuclear energy out of contention on economic grounds. There are nuclear power plants on all other continents, including South America (Brazil, Argentina) and Africa (South Africa).
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