STD's by race and gender.
Male and female population comes from here:https://www.census.gov/prod/2005pubs/censr-20.pdf
Page 5/19 shows you the sex ratio of races in the United States.
CDC 2016 STD Surveillance Report.
The Black and White Male/Female populations were extrapolated from the overall white/black populations and the sex ratios from the first source.