What are the sources?
Sources are carefully selected to include only data published by the most prestigious institutions in the world, such as the United Nations, the World Health Organization, the Food and Agriculture Organization, its data branch FAOstat, the OECD and others (click here for a list of sources). We are currently working on dedicated pages where you can learn more and find sources for each topic. List of sources and methods currently online: • world population • global military spending • global education spending • countries in the U.N.