Country,Median_Age,Source Niger,15.2,UN WPP / CIA Uganda,16.7,UN WPP / CIA Angola,16.7,UN WPP / CIA Mali,16.3,UN WPP / CIA Chad,16.6,UN WPP / CIA Democratic Republic of the Congo,17.0,UN WPP / CIA Somalia,17.0,UN WPP / CIA Burkina Faso,17.1,UN WPP / CIA Zambia,17.6,UN WPP / CIA Tanzania,18.0,UN WPP / CIA