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We moved them to The National Archives website, to keep this website as responsive as possible.
Please note: all historical data is still on this website.
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Information on the data, methods and assumption setting process used to produce the 2020-based interim national population projections.
The data sources and methodology used to produce fertility assumptions in the 2020-based interim national population projections.
The aims of this user guide are to provide guidance and examples for those wishing to understand and use variant projections in policy and planning.
Guidance for users about the coherence and comparability of household projections for England, Wales, Scotland and Northern Ireland.
User guidance, uses, assumptions and methodology for the subnational population projections for each constituent country of the UK.
User guidance about uses, methodology, assumptions and input data for household projections for England.
Quality and Methodology Information (QMI) report for household projections in England, detailing the strengths and limitations of the data, methods used, and data uses and users.
Information on the methods used to produce the 2018-based subnational population projections.
Quality and Methodology Information (QMI) report for subnational population projections, detailing the strengths and limitations of the data, methods used, and data uses and users.
General background information on the methods used to produce the 2018-based national population projections.
