IDDS Working Paper 3 contained information relating to the Missile Programs of North Korea, Iraq, and Iran . . .Reach, yeild, class and count, so on and so forth. Interesting site to spend a day at. There are entirely too many graphics for me to print the article faithfully, so I'm merely linking.
Of course this whole premise assumes that missiles can ONLY be launched from their home territory and not launched from other sites, or even a ship off of the coast of the continental US.
It also assumes, in attacking the US missile defense concept that these three countries are the ONLY countries likely to launch missile attacks against the US…and finally, there is an assumption that a nuclear attack must be launched with missiles.
http://www.idds.org/dbindex.html