<P> Due to financial, political and technical reasons, Cuba, Libya, North Korea, and Poland never completed the construction of their first nuclear plants, and Australia, Azerbaijan, Georgia, Ghana, Ireland, Kuwait, Oman, Peru, Singapore, and Venezuela never built their planned first nuclear plants . </P> <P> Of the 31 countries in which nuclear power plants operate, only France, Slovakia, Ukraine, Belgium, and Hungary use them as the source for a majority of the country's electricity supply . Other countries have significant amounts of nuclear power generation capacity . According to the World Nuclear Association, a nuclear power advocacy group, as of 2012 over 45 countries were giving "serious consideration" to introducing a nuclear power capability, with Belarus, Iran, Jordan, Turkey, the United Arab Emirates and Vietnam at the forefront . China, India and South Korea are pursuing ambitious expansions of their nuclear power capacities, with China aiming to increase capacity to at least 80 GW by 2020, 200 GW by 2030 and 400 GW by 2050 . South Korea plans to expand its nuclear capacity from 20.7 GW in 2012 to 27.3 GW in 2020 and to 43 GW by 2030 . India aims to have 14.6 GW nuclear power generation capacity by 2020 and 63 GW by 2032 and to have 25% of all electricity supplied by nuclear power by 2050 . </P> <Table> Nuclear power by country in 2016 <Tr> <Th> Country </Th> <Th> Number of operated reactors </Th> <Th> Capacity Net - total (MW) </Th> <Th> Generated electricity (GWh) </Th> <Th> Share of total electricity use </Th> </Tr> <Tr> <Td> Argentina </Td> <Td> </Td> <Td> 1632 </Td> <Td> 7677.36 </Td> <Td> 5.6% </Td> </Tr> <Tr> <Td> Armenia </Td> <Td> </Td> <Td> 375 </Td> <Td> 2194.85 </Td> <Td> 31.4% </Td> </Tr> <Tr> <Td> Belgium </Td> <Td> 7 </Td> <Td> 5913 </Td> <Td> 41430.45 </Td> <Td> 51.7% </Td> </Tr> <Tr> <Td> Brazil </Td> <Td> </Td> <Td> 1884 </Td> <Td> 14970.46 </Td> <Td> 2.9% </Td> </Tr> <Tr> <Td> Bulgaria </Td> <Td> </Td> <Td> 1926 </Td> <Td> 15083.45 </Td> <Td> 35% </Td> </Tr> <Tr> <Td> Canada </Td> <Td> 19 </Td> <Td> 13554 </Td> <Td> 95650.19 </Td> <Td> 15.6% </Td> </Tr> <Tr> <Td> China </Td> <Td> 36 </Td> <Td> 31384 </Td> <Td> 197829.04 </Td> <Td> 3.6% </Td> </Tr> <Tr> <Td> Czech Republic </Td> <Td> 6 </Td> <Td> 3930 </Td> <Td> 22729.87 </Td> <Td> 29.4% </Td> </Tr> <Tr> <Td> Finland </Td> <Td> </Td> <Td> 2764 </Td> <Td> 22280.1 </Td> <Td> 33.7% </Td> </Tr> <Tr> <Td> France </Td> <Td> 58 </Td> <Td> 63130 </Td> <Td> 386452.88 </Td> <Td> 72.3% </Td> </Tr> <Tr> <Td> Germany </Td> <Td> 8 </Td> <Td> 10799 </Td> <Td> 80069.61 </Td> <Td> 13.1% </Td> </Tr> <Tr> <Td> Hungary </Td> <Td> </Td> <Td> 1889 </Td> <Td> 15183.01 </Td> <Td> 51.3% </Td> </Tr> <Tr> <Td> India </Td> <Td> 22 </Td> <Td> 6240 </Td> <Td> 35006.83 </Td> <Td> 3.4% </Td> </Tr> <Tr> <Td> Iran </Td> <Td> </Td> <Td> 915 </Td> <Td> 5923.97 </Td> <Td> 2.1% </Td> </Tr> <Tr> <Td> Japan </Td> <Td> 43 </Td> <Td> 40290 </Td> <Td> 17537.14 </Td> <Td> 2.2% </Td> </Tr> <Tr> <Td> Korea, Republic of </Td> <Td> 25 </Td> <Td> 23077 </Td> <Td> 154306.65 </Td> <Td> 30.3% </Td> </Tr> <Tr> <Td> Mexico </Td> <Td> </Td> <Td> 1552 </Td> <Td> 10272.29 </Td> <Td> 6.2% </Td> </Tr> <Tr> <Td> Netherlands </Td> <Td> </Td> <Td> 482 </Td> <Td> 3749.81 </Td> <Td> 3.4% </Td> </Tr> <Tr> <Td> Pakistan </Td> <Td> </Td> <Td> 1005 </Td> <Td> 5438.9 </Td> <Td> 4.4% </Td> </Tr> <Tr> <Td> Romania </Td> <Td> </Td> <Td> 1306 </Td> <Td> 10388.20 </Td> <Td> 17.1% </Td> </Tr> <Tr> <Td> Russia </Td> <Td> 36 </Td> <Td> 26528 </Td> <Td> 184054.09 </Td> <Td> 17.1% </Td> </Tr> <Tr> <Td> Slovakia </Td> <Td> </Td> <Td> 1814 </Td> <Td> 13733.35 </Td> <Td> 54.1% </Td> </Tr> <Tr> <Td> Slovenia </Td> <Td> </Td> <Td> 688 </Td> <Td> 5431.27 </Td> <Td> 35.2% </Td> </Tr> <Tr> <Td> South Africa </Td> <Td> </Td> <Td> 1860 </Td> <Td> 15209.47 </Td> <Td> 6.6% </Td> </Tr> <Tr> <Td> Spain </Td> <Td> 7 </Td> <Td> 7121 </Td> <Td> 56102.44 </Td> <Td> 21.4% </Td> </Tr> <Tr> <Td> Sweden </Td> <Td> 10 </Td> <Td> 9740 </Td> <Td> 60647.40 </Td> <Td> 40.0% </Td> </Tr> <Tr> <Td> Switzerland </Td> <Td> 5 </Td> <Td> 3333 </Td> <Td> 20303.12 </Td> <Td> 34.4% </Td> </Tr> <Tr> <Td> Taiwan </Td> <Td> 6 </Td> <Td> 5052 </Td> <Td> 30461.09 </Td> <Td> 13.7% </Td> </Tr> <Tr> <Td> Ukraine </Td> <Td> 15 </Td> <Td> 13107 </Td> <Td> 76077.79 </Td> <Td> 52.3% </Td> </Tr> <Tr> <Td> United Kingdom </Td> <Td> 15 </Td> <Td> 8918 </Td> <Td> 65148.98 </Td> <Td> 20.4% </Td> </Tr> <Tr> <Td> United States </Td> <Td> 100 </Td> <Td> 100351 </Td> <Td> 804872.94 </Td> <Td> 19.7% </Td> </Tr> <Tr> <Th> World total </Th> <Th> 451 </Th> <Th> 392,553 MW </Th> <Th> 2,476 TWh </Th> <Th> 10.9% </Th> </Tr> </Table> <Tr> <Th> Country </Th> <Th> Number of operated reactors </Th> <Th> Capacity Net - total (MW) </Th> <Th> Generated electricity (GWh) </Th> <Th> Share of total electricity use </Th> </Tr>

Number of nuclear reactors in the world by country
find me the text answering this question