This survey consists of 6 parts: - migration: data on migration, i.e. immigration and emigration of households or individual; this information is important for population forecasts and the evaluation of the development of the individual geographic area - handicaps: reasons for including questions on this topic are the “year of handicapped persons” (1981), proclaimed by the UN and paying attentions to these questions from a statistical point of view; the questions had already been posed in September 1987 (Mikrozensus MZ7803) - additional occupation: these questions should give information on additional occupation of employed and unemployed persons; of course the Mikrozensus can only document legal additional occupation, not illegal employment - social stratification: questions on occupational stratum and the receiving of benefit payments serve the in-depth analysis of the other questions - income: the currently available income data in Austria do not allow the representation of the population according to the total income of one person and according to the income of the household; a detailed income survey is not possible in the Mikrozensus: the question program on income is limited to a single question and self-employed, as well as persons helping in the family business are not interviewed. - birth-biography and desire to have children: these questions were for the most part already posed in June 1967 (Mikrozensus MZ7602).