The Annual Survey of Hours and Earnings (ASHE), formerly the New Earnings Survey (NES), sample each year comprises all those whose National Insurance (NI) numbers end with a specified pair of digits.

The same pair of digits has been used since 1975 and hence the ASHEPD comprises data on employees earnings linked by NI number over time.

Main topics covered: earnings, occupation, industry, hours worked, sex, age, place of work, and job tenure.

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