Hope the following, from the National Minority AIDS Council, are extrapolated statistics, too, but am afraid their numbers might be close to the truth...
Blacks in America are 13 percent of the U.S. population, but they represent more than 50 percent of all new HIV/AIDS diagnoses.
In the United States, more than 1 million people have HIV and more than 500,000 people have died from AIDS-related illnesses.
More than 500,000 blacks in America have HIV, and more than 200,000 have died from AIDS-related illnesses. In other words, about half of HIV infections and about half of AIDS deaths are among blacks in America.
... and those blacks come from where ... ?
needle exchange programs are the answer (sarc)
I don't know if those were supposed to be national figures or just for Washington, DC.
In any case the MSM numbers are likely to be low, since many HIV-positive men may be unwilling to admit that they engaged in homosexual activity.