Of course I am quite curious as to how one would determine the denominator of the 'could have one' population figure as such is determined by a proper background check.
I didn't say getting the statistics needed for a proper comparison would be easy. Indeed, that's often the case with statistics. I can think of several good first approximations that wouldn't be too difficult for someone with access to the raw data to compile, such as the crime rate among adults with no criminal convictions that would disqualify them from getting a CCW.