This chart is from a racist on the left-libertarian forum trying to make an ad hom against us (he calls us non-racist Anarchists "liberal creationists" for some reason, even though none of us are liberal). I think it's pretty funny.
I'm not sure he's a racist. He might just be a guy who is passionate about trying to prove that white people are genetically superior to black people. And white people do seem to have higher incomes.