What is the speed, reach and stagger of unarmed attacks in Skyrim?

I believe I know the answer to 2 now. The Creation Kit says the reach values listed for weapons are used in a formula fCombatDistance * NPCScale * WeaponReach. The UESP database suggests that the value for fCombatDistance for Skyrim is 141, and that the unarmed reach for vampire lords is the same as for werewolves, 150. One-handed swords have WeaponReach 1 so actual reach of 141, so werewolves and vampire lords have slightly longer reach. A dagger has 98.7 reach, slightly longer than the base unarmed reach for all of the PC races, 96. These values are all in units, the fundamental measure of length in the game engine.