Top 20 richest countries in the world for 2016- See where Nigeria is despite recession

14. Ireland

A modern country dependent on trade, Irish per-capita income is $40,838. Agriculture used to be a mainstay in its economy, though it has now been overtaken by the export sector, specifically in industry and services.

15. Sweden

Sweden is also dependent on foreign trade, with iron ore, timber and hydropower constituting most of its resources. With per-capita income of 40,705 and a broad welfare system, its economy is further complemented by modern technology and highly skilled labor.