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Estimated numbers of U.S. nuclear warheads throughout the years, as provided by the Federation of American Scientists and the Natural Resources Defense Council, which collaborate on tracking the nuclear stockpile. The projection for 2012 is based on announced reduction plans.
1945 6
1950 369
1960 20,434
1970 26,662
1980 24,304
1990 20,977
2000 10,565
2008 5,303
2012 4,695
