I'd really like to see demographic statistics comparing the homeless from different cities. I'm especially interested in the mean/median distance a homeless per

I'd really like to see demographic statistics comparing the homeless from different cities. I'm especially interested in the mean/median distance a homeless person is from their home town (or at least the last town where they had a stable lifestyle.) I suspect SF has a greater number of homeless per capita that aren't from SF. The city is very supportive and I reckon that it is an ideal place to be homeless if you have some means to travel.