The other thing not mentioned, a lot of the older ones were called tactical nukes. Something like the Davy Crocket which was launched from a ground artillery piece from a couple of miles away and was small yield. Meant for a Russian tank column. The A-4 and I think F-111 could both carry small nuclear bombs which we no longer have. We don't use those anymore and things like that probably accounted for half of what we used to have.
Ahh,, "Atomic Annie", honestly i would love to be the guy that got to test fire that.. even if it meant dying of cancer at an early age.