A quick wild guess analysis to explain would be that Alaska has more men than women, the several southern states have more illegals, and the others might be related to education levels. That ought to get someone mad. Sorry in advance, total speculation. Demographics probably drive the numbers more than gun laws, but that said I think the correlation I'd be interested in is the per capita rate of concealed carry to violent crime.
We can safely agree that a number of factors come into play.