We’re Number 1 (Duh!)
A story published in Reuters today noted the USA as the most heavily armed society in the world, on a gross scale and per-capita scale. Apparently, we have enough firearms to give 90% of our population a gun, and U.S. citizens own 270 million of the world’s 875 million known firearms. Second up per-capita is Yemen (wtf?), Finland, and Switzerland.
What is more interesting to me is the fact that we have such good registration of our firearm ownership. Sure, we’ve got a lot of guns lying around and we’ll shoot the shit out of you (and each other) but at least we’re open about it.

