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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.
Response rates, sample size and quality assessment of the Office for National Statistics quarterly Labour Force Survey.
Linkage methodology and quality information for 2011 Census linkage to DWP (Department for Work and Pensions) master key and encrypted NINo (National Insurance number).
Linkage methodology and quality information for 2021 Census linkage to DWP (Department for Work and Pensions) master key and encrypted NINo (National Insurance number).
Explains the methods and data sources we use to record pensions in fiscal statistics.
A joint statement with The Pensions Regulator (TPR) and the Pension Protection Fund (PPF) on defined benefit pensions, summarising the different approaches taken to data collection and how the data are used by the three organisations.
Quality and Methodology Information for Unexplained deaths in infancy: England and Wales, detailing the strengths and limitations of the data, methods used and data uses and users.
Important information to inform users and explain any misunderstandings around our migration statistics.
Quality and Methodology Information for domestic abuse detailing the strengths and limitations of the data, methods used and data uses and users.
Quality and Methodology Information for estimates of UK quarterly greenhouse gas emissions, detailing methods used, data it provides, and strengths and limitations
Methodology for national population estimates broken down into small geographical areas – Super Output Areas, health geographies, electoral wards, Parliamentary constituencies and National Parks.
