NavGeneral InfoEmail Print Geography Nigeria (NGA) Coverage type Country Time period covered 01/2002 - 12/2002 Series or system Core Welfare Indicators Questionnaire Survey (CWIQ) Data type Survey: Household Keywords Cooking fuels, Household air pollution Citation Contributors Federal Office of Statistics (Nigeria) Suggested citation Federal Office of Statistics (Nigeria). Nigeria Core Welfare Indicators Questionnaire Survey - 8 States 2002. GHDx Entry last modified on: Sep 6, 2023