In 1914, the following European nations held territories, or colonies, on the continent of Africa: Belgium, Portugal, Germany, France, Britain, Italy and Spain.
Between 1885 and 1914, Britain took nearly 30% of Africa's population under its control; 15% for France, 11% for Portugal, 9% for Germany, 7% for Belgium and 1% for Italy. Nigeria alone contributed 15 million subjects, more than in the whole of French West Africa or the entire German colonial empire.
Hope I could provide some background information, according to google. -j:)
