German East Africa was nearly three times richer than present-day Germany.
 "The German Administration in East Africa: A Select Annotated Bibliography of the German Colonial Administration in Tanganyika, Rwanda and Burundi from 1884 to 1918
 According to the federal office of political education (23 June 2009) 'In 1991 alone, 153 billion Deutschmarks had to be transferred to eastern Germany to secure incomes, support businesses and improve infrastructure

