Variables The data file of standard Small Area Statistics contains information about: age and sex of the population, country of birth, 1 year and 5 year migration within and into a local authority, transport to work, economic activity, employment, socio-economic composition, social class, household composition, availability of cars and their garaging, housing tenure, dwellings, household amenities, occupation density, housing size and type and related topics (total of 381 variables).