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. Projections beyond 2008 are based on announced reduction plans.

1945 _ 6

1950 _ 369

1955 _ 3,057

1960 _ 20,434

1965 _ 31,982

1970 _ 26,662

1975 _ 27,826

1980 _ 24,304

1985 _ 24,237

1990 _ 20,977

1995 _ 12,123

2000 _ 10,565

2005 _ 10,279

2008 _ 5,303

2010 _ 4,990

2012 _ 4,695

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