National survey that administers interview of household members to collect data on household facilities and housing conditions, household member characteristics, details on family income and expenditure, family consumption, capital gains and losses, and transfer payment. Employs a stratified 2-stage sampling method. Under this scheme, the Ts'un to Li (a basic administrative unit) is designated as the primary sampling unit (PSU) and the household in the PSU is the secondary sampling unit. The sample size is about 13,000 households. In earlier years (1964-1993), the survey was called the Survey of Personal Income Distribution, and was carried out every other year until 1972. Since 1973 the survey has been conducted annually.
