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Dewis pwnc arall neu clirio pob hidlydd.
Methodology on the comparison of national population projections from 1971 to 2022 with population estimates, births, long-term international migration, and deaths, including measures of error.
The data sources and methodology used to produce migration assumptions in the 2022-based national population projections.
The variant projections, a range of scenarios with alternative demographic assumptions, used in the 2022-based national population projections.
Quality and methodology information for national population projections, detailing the strengths and limitations of the data, methods used and data uses and users.
Information on the data, methods and assumption setting process used to produce the 2022-based national population projections.
The data sources and methodology used to produce fertility assumptions in the 2022-based national population projections.
The data sources and methodology used to produce mortality assumptions in the UK 2022-based national population projections.
User guidance on continuing to use the 2018-based subnational population projections (SNPPs) in the absence of 2020-based SNPPs. Links to information about the uncertainty of the mid-2020 population estimates and an outline of our plans for the integration of Census 2021 data into future SNPPs.
The data sources and methodology used to produce mortality assumptions in the 2020-based interim national population projections.
The data sources and methodology used to produce migration assumptions in the 2020-based interim national population projections.