Nigeria has a GDP per capita of about $6100. Have I misunderstood that page?
Not that far off some EU countries.
https://en.wikipedia.org/wiki/List_of_sovereign_states_in_Eu...
Country CIA[4] 2010 Estimation
Moldova 1,433
Kosovo 1,813
Bosnia and Herzegovina 3,500
Albania 4,000
Ukraine 4,350
Republic of Macedonia 4,669
Belarus 5,500