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Rhyddhawyd ar: 28 November 2024
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Methodoleg
Important information to inform users and explain any misunderstandings around our migration statistics.
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Rhyddhawyd ar: 15 July 2024
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Methodoleg
A technical article setting out the statistical design of developing population and migration statistics using administrative sources.
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Rhyddhawyd ar: 15 July 2024
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Methodoleg
This methodology brings together important information about our mid-year admin-based population estimates (ABPEs) for England and Wales.
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Rhyddhawyd ar: 15 July 2021
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Methodoleg
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Rhyddhawyd ar: 24 August 2017
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Methodoleg
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Rhyddhawyd ar: 03 February 2016
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Methodoleg
An overview of ONS's population statistics including population estimates, population projections, migration and the census.
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Rhyddhawyd ar: 06 September 2023
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Methodoleg
Known quality information affecting demography, migration and international migration data from Census 2021 in England and Wales.
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Rhyddhawyd ar: 17 September 2021
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Methodoleg
Quality and Methodology Information for local area migration, detailing the strengths and limitations of the data, methods used, and data uses and users.
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Rhyddhawyd ar: 27 February 2020
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Methodoleg
In-depth look at methodology of both Long-Term International Migration (LTIM) and the International Passenger Survey (IPS), including preliminary adjustments, assumptions made for variables, and changes over time.
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Rhyddhawyd ar: 28 November 2019
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Methodoleg
Quality and methodology Information for Long-Term International Migration estimates, detailing the strengths and limitations of the data, methods used and data users and uses.
