Possibly these numbers are based on inventory counts combined with the record of warheads destroyed. Inventory controls are pretty much very stringent except of North Korea. Also I would strongly question that South Africa has abandoned their nuclear program, and Israel's counts are up for debate as well. There aren't too many that are lost that are actually lost.
__________________
My name is Ozymandias, King of Kings;
Look on my Works, ye Mighty, and despair!
|