Nuclear weapon yield

Columns: Date | Name | Yield ( kt ) | Country | Significance
1964-10-16 | 596 | 22 | PR China | First fission weapon test by the People 's Republic of China | 1967-06-17 | Test No . 6 | 3,300 | PR China | First staged thermonuclear weapon test by the People 's Republic of China | 1968-08-24 | Canopus | 2,600 | France | First staged thermonuclear weapon test by France | 1974-05-18 | Smiling Buddha | 12 | India | First fission nuclear explosive test by India | 1998-05-11 | Pokhran-II | 45-50 | India | First potential fusion/boosted weapon test by India ; first deployable fission weapon test by India | 1998-05-28 | Chagai-I | 40 | Pakistan | First fission weapon ( boosted ) test by Pakistan

Example questions:
What is the yield of the nuclear weapon that was the code name Fat Boy of the first detonation of a nuclear device ? | What is the yield of the nuclear weapon that was the first test of a British atomic device named Hurricane ? | What is the yield of the nuclear weapon that was also known as Izdeliye 501 ( device 501 ) and First Lightning use by Russia ?

Answers:
18-20 | 25 | 22