Estimated number of nuclear weapons by Country, 1945–2008.

2013-02-21T01:39:27Z (GMT) by Peter J. Hotez
<p>Sources: <a href="http://www.plosntds.org/article/info:doi/10.1371/journal.pntd.0000680#pntd.0000680-1" target="_blank">[1]</a> and <a href="http://en.wikipedia.org/wiki/List_of_states_with_nuclear_weapons" target="_blank">http://en.wikipedia.org/wiki/List_of_states_with_nuclear_weapons</a>.</p>

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