Here are some references for some research we did for self defence, a lot of the data is publicly (web) available. Its Australian stats, but may translate
http://www.aikidorepublic.com/self-d...ime-references
The tendency of acts to happen among friends/relatives and in the home environment was a real surprise at the time and suits well an aiki approach in building awareness of warning signs, as well as adjusting our focus from the conventional self defence wisdom of 'random stranger on the street' (not that this isn't important too)
best,
dan
PS Out of intrest, is your self defence just focused on women?