According to a new report from the Center on Juvenile and Criminal Justice African-American women in San Francisco account for 50% of the female arrests, but only make up 6% of the female population.

The difference between Black female and non-black female arrests are four times higher than the rest of California. This rate has gone up sharply in San Francisco: in 1980, the arrest disparity between black women and non-black women was 4.1 percent, which is less than one-third of 2013’s racial disparity.

The study points out that arrest disparities are not the result of African-Americans committing more crimes. In fact, 2012 San Francisco arrest rates for black women were lower than any time over the last 30 years. You can read the full report here.