In 2009, the median age in Algeria was 25.8, the highest of all participating African countries (South Africa was 24.7). The lowest median age was in Nigeria, at 18.5. (The Economist Pocket World in Figures 2010)

This week’s theme: African teams in the World Cup

Related facts:

• Read all about it Of the participating African countries, South Africa has the highest adult...
• Labour force lows The countries with the lowest percentage of their populations participating in...
• Connected? Of the participating African nations, Nigeria has the highest internet penetration...
• Watch your head Of the quarter final nations, South Africa has the lowest average...
• Life is cheap The cost of living index for SA is 68. For Australia...