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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.
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 fertility assumptions in the 2018-based national population projections.
General background information on the methods used to produce 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.
A summary of how we set the demographic assumptions for the 2018-based national population projections.
User guidance about uses, methodology, assumptions and input data for household projections for England.
High-level user guidance about the uses, methodology, assumptions and input data for household projections for England.