Nigeria Top Pick for Investment?

In Reuters:

On the Goldman Sachs' growth-environment index, which measures a mixture of economic and social development indicators, Nigeria's score has nearly doubled over the past decade.
"If it were to show the same increase in its growth-environment score over the next decade, many investors will look back and say why the hell didn't I invest in Nigeria," said Goldman Sachs' global head of economic research Jim O'Neill, who coined the term BRICs