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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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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.
Quality and methodology information for mortality statistics in England and Wales, detailing the strengths and limitations of the data, methods used, and data uses and users.
Quality and Methodology Information for the Business Insights and Conditions Survey, detailing the strengths and limitations of the data, methods used, and data uses and users.
Quality and methodology information for Infrastructure in the UK, investment and net stocks, detailing the strengths and limitations of the data, methods used, and data uses and users.
Quality and methodology information for mid-year population estimates in the UK, detailing the strengths and limitations of the data, methods used, and data uses and users.
Quality and methodology information for investment in intangible assets in the UK. Includes strengths and limitations, methods, and data uses and users.
Information on strengths and limitations of the data, quality characteristics, users and uses of the data, how the output was created, accessibility, and characteristics.
Quality and Methodology Information (QMI) report for the Producer Price Index, detailing the strengths and limitations of the data, methods used, and data uses and users.
Quality and methodology information for the Management and Expectations Survey (MES), including strengths and limitations of the data, recent corrections, methods, and data uses and users.
Links to guidance, methodology and information documents for crime statistics in England and Wales.