10.3886/ICPSR07493.v1 United States Department of Commerce. Bureau of the Census. International Statistical Program Center Inter-university Consortium for Political and Social Research 1984 birth rates demographic characteristics economic development economic growth rate mortality rates nations population census population characteristics population growth rate population migration post-World War II period world population 1984-05-10 1992-02-16 1950 1975 census/enumeration data 7493 1 This study collected demographic data for 201 nations and political entities worldwide. Variables include population for each year between 1950-1975, plus the figures for birth, death, and growth rates in 1975.