How much of the world's electricity comes from nuclear power?

Sixteen percent of the world's electricity is supplied by nuclear power, according to the World Nuclear Association. The electricity is produced by 440 nuclear reactors in 31 countries.

The United States has the most reactors with a total of 104, according to the International Atomic Energy Agency. The reactors are responsible for producing nearly 20 percent of the country's electricity.

The country that gets the highest percentage of its electricity from nuclear power is France. Its 59 reactors generate more than 78 percent of its electricity.