[An American compiled this list for me. Jan]

He wrote:
The only thing I can find is Average National IQ.

Nations with an Average National IQ 65 and below (Morons):
Lesotho, Swaziland, Mozambique, Zimbabwe, Copmgo (Kinshasa), Congo (Brazzaville),Gabon, Equatorial AfricaCameroon, Central African Republic, Ethiopia, Sierra Leone, Guinea Bissau, the Gambia, Haiti, Jamaica.

Nations with an national average IQ of 70 (Morons):
South Africa, Namibia, Botswana, Zimbabwe, Angola, Zambia, Malawi, Tanzania, Comoro Islands, Uganda, Kenya, Somalia, Djibouti, Eritrea, South Sudan, Sudan, Tchad, Niger, Mali, Nigeria, Benin, Togo, Ghana, Ivory Coast, Burkina Faso, Liberia,, Guinea, Senegal, West Indies, and the Bahamas.

These are all Black Nations, Only Black Nations have this low IQ.

Nations with Average IQ of 75 (Above Moron): Mauretania, Nepal, Sri Lanka.

Nations with a National Average IQ of 80 (Below 80 is the cutoff to enlist in the US Military):
Malagasy Republic,eunion, Seychelles, India, Bhutan, Bangladesh, Papua New guinea, Solomon Islands, Egypt, Nicaragua, El Salvador, Honduras, Dominican Republic.

This is not directly the Economic Value of people by Race, but Intelligence and Economic Value are linked. There are of course some individuals in these nations that are smart, but they are Average IQ’s. For example India has numerically a lot of smart people, but as a percentage of the humongous population they are few.

I would say that American Blacks are on average a bit higher IQ than their African Ancestors because most all American Blacks have White Blood in them.