I want to know the answer to the following question:
What percentage of people executed in the United States since 1976 have been African American?
All the background I'm provided with is that "However, according to a 2003 Amnesty International report, blacks and whites were the victims of murder in almost equal numbers, yet 80 percent of the people executed since 1977 were convicted of murders involving white victims.". Is that enough to answer the question?