This OP is complete bull shit. Your so called facts are not facts at all they assume the result then chase down a chart that proves it. No different than the global warming folk looking for data the proves the end of the world is nigh.
IQ of kids can be tracked similarly, by whether or not there are two parents, by whether or not one or both parents are college educated, whether or not the child is born to a country with a high per-capita income, whether or not the child is born to drug addicted parents, etc.
The problem, as I see it, is we have to many black families with only one parent, to many without a college educated parent, to many that abuse drugs and alcohol, to many that have bought into a life of welfare... In short, there is a culture problem in America.