Age-Sex Cohorts

China's Age-Sex Cohorts came from the University of Michigan's China Data Center, but the data was originally sourced from the 2010 Census. The cohorts for all Provinces were in five year cohorts up to 100+ or the 21st cohort with the exception of the first cohort. The first cohort, population 0-4 years of age, was found by summing the infant population and population 1 to 4 years of age.