Maintains an archive of datasets including American Fertility Survey, European Fertility Decline (main data may only be for people at OPR available by FTP, including socioeconomic datasets for Austria, Russia, Germany and Switzerland), World Fertility Survey (41 countries, data can be downloaded by FTP), Demographic and Health Surveys (DHS – see separate entry. Directory here, but data only available to OPR members), China Fertility surveys (for 1985 & 1987, data available by FTP). In all cases, a catalogue of data with detailed descriptions is available, with contact details for data.