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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.
Administrative data sources and quality assurance in the production of admin-based long-term international migration estimates published in bi-annual releases.
Quality information affecting Welsh language data from Census 2021 to help correctly interpret them.
Methods used to produce small area income estimates for local areas in England and Wales; Middle layer Super Output Areas (MSOAs), covering on the quality of the models and estimates.
Quality and Methodology Information for energy efficiency of housing estimates for England and Wales, detailing the strengths and limitations of the data, methods used, and data uses and users.
International Passenger Survey data are collected via face-to-face interviews with passengers passing through ports and on routes into and out of the UK.
Known quality information affecting demography, migration and international migration data from Census 2021 in England and Wales.
Quality and Methodology Information for Student Cost of Living Insights Study (SCoLIS) interviews, detailing the strengths and limitations of the data, methods used, and data uses and users.
Methods used to link Census 2021 to the Personal Demographics Service (PDS) using deterministic and probabilistic methods.
Methods used to link the Service Leavers Database, provided by the Ministry of Defence, to 2011 Census using deterministic and probabilistic methods.
User guidance and technical information for the Living Costs and Food Survey for the financial year ending March 2022.
