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Dewis pwnc arall neu clirio pob hidlydd.
The data sources and methodology used to produce mortality assumptions in the 2020-based interim national population projections.
Quality and methodology information (QMI) for national population projections, detailing the strengths and limitations of the data, methods used and data uses and users.
The data sources and methodology used to produce migration assumptions in the 2020-based interim national population projections.
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.
Quality and methodology information for quality-adjusted labour input (QALI), detailing the strengths and limitations of the data, methods used and data uses and users.
Quality and Methodology Information for population of the UK by country of birth and nationality, detailing the strengths and limitations of the data, methods used, and data uses and users.
An introduction to the main concepts that underpin international migration statistics, including answers to frequently asked questions.
Quality, methodology and comparability information for data used to calculate excess all-cause mortality for the UK, and European countries and regions, as reported in the Comparisons of all-cause mortality between European countries and regions article. Includes methodology for calculating measures of excess mortality, quality the data sources, comparability of the measures, and how to interpret the data.
Business demography explainer covering additional information on the impact of multiple registrations at a single postcode.
