Rate of Cumulated Ebola cases based on the total population of the countries (or world for Totals), excluding Congo. Based on populations: World 7,176,023,055, Guinea 10,628,972, Liberia 4,092,310, Sierra Leone 6,190,280, Nigeria 174,507,539, Senegal 13,567,338, USA 318,968,000 and Spain 46,704,314. Order and colouring of contries based on the diagram uploaded by user "The Anome"