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Not all census content has been released. Check for upcoming releases in the release calendar. Alternatively, you can create a custom dataset.
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International migration statistics first time user guide
An introduction to the main concepts that underpin international migration statistics.
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ONS population statistics newsletter: autumn 2017
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National population projections migration assumptions methodology review
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Population and migration statistics transformation in England and Wales, a quality strategy
This report provides information about the quality strategy underpinning the future population and migration statistics system in England and Wales.
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Methods to produce provisional long-term international migration estimates
An explanation of the methods used to produce the latest provisional statistics on migration flows into and out of the UK.
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Admin-based long-term international migration estimates QMI
Quality and Methodology Information for long-term international migration statistics, detailing the strengths and limitations of the data, methods used, and data uses and users.
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The Census 2021 Data Asset longitudinal data source for population in England and Wales: design and plans
The Census 2021 Data Asset high-level design: exploring the feasibility of maintaining an anonymised person-level longitudinal data source based on Census 2021.
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National population projections, migration assumptions: 2020-based interim
The data sources and methodology used to produce migration assumptions in the 2020-based interim national population projections.
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Long-Term International Migration estimates and their reliability and accuracy
Understanding the reliability and accuracy of Long-Term International Migration estimates, including sampling distribution, sampling error, statistical significance and confidence intervals.
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Short-Term International Migration methodology – local authority estimates
An introduction to the main concepts that underpin Short-Term International Migration statistics for local authorities in England and Wales.