White offenders convicted of a crime carrying a mandatory minimum sentence are receiving more severe punishments than any other race, according to a United States Sentencing Commission (USSC) study.

The USSC released its comprehensive review of the federal justice system’s mandatory minimum penalties Tuesday in its first review of the penalties since 2011. The study found that unlike 2011, white offenders, as opposed to black offenders, had the highest average sentence among offenders convicted of a crime carrying a mandatory minimum penalty. White people also had the highest sentences among offenders who had obtained sentence reductions.

White offenders were sentenced to an average of 127 months, black offenders to 119 months, and Hispanic offenders to 93 months.

Despite the raised sentences for whites, USSC reported a drop in the rate at which mandatory minimum sentences are used since 2011. The study clarifies that the drop is likely due to policies adopted by the Obama administration during the later years of Barack Obama’s presidency.

In September 2016, more than 55 percent of inmates in federal custody had been charged with a crime carrying a mandatory minimum sentence. These inmates had an average sentence of 110 months, or just over 9 years.