Really? The number of blacks raped jumped four-fold in one year in 2008, to 47,000, and whites accounted for 0.0% of those rapists? Really? Hard to imagine. Is this based on some crazy-ass statistical method?
He has conveniently linked his data sourced, which you seem to have completely ignored.
Sad.
I took the data from DoJ tables.. yes I believe that they interview 75,000 victims of both reported and unreported crimes and they do use statistical methods to interpolate their totals. I am not qualified to judge their methods.