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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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Dewis pwnc arall neu clirio pob hidlydd.
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.
User guidance, uses, assumptions and methodology for the subnational population projections for each constituent country of the UK.
Guidance for users about the coherence and comparability of household projections for England, Wales, Scotland and Northern Ireland.
User guidance about uses, methodology, assumptions and input data for household projections for England.
Information on the methods used to produce the 2018-based subnational population projections.
The variant projections, a range of scenarios with alternative demographic assumptions, used in the 2018-based national population projections.
The data sources and methodology used to produce mortality assumptions in the 2018-based national population projections.
The data sources and methodology used to produce migration assumptions in the 2018-based national population projections.
General background information on the methods used to produce the 2018-based national population projections.
