of the cross racial rapes, and if you assume random targets, you should expect blacks to account for 82% and whites to account for about 18%. That's because there are more white targets for blacks than vice versa because there are more white people. Nevertheless, the most likely rape comes from your neighbor and given the social segregation in the US, most of the time it is whites raping whites and blacks raping blacks.
I still don't understand why crime isn't crime, regardless of race.