Nigeria is one example.

Excerpt of Abstract: 'The results indicate that the educational attainment of second-generation Nigerian Americans exceeds other second-generation black Americans, third- and higher generation African Americans, third- and higher generation whites, second-generation whites, and second-generation Asian Americans'.

READ THE FULL ABSTRACT OR WHOLE RESEARCH: https://journals.sagepub.com/doi/full/10.1177/23780231211001971