Income from work: total income from current principal activity, received in the reference month of the survey. Average hourly wage: wages of wage earners per hour actually worked. The figure is obtained from the masses of income and masses of hours, for each selected job.

International Classification of Status in Employment (ICSE_93). International Standard Classification of Occupations (ISCO-88, 1 digit). International Standard Classification of Occupations (ISCO-08, 1 digit). International Standard Classification of Education (ISCED_97).

Educational level (ISCED) grouped into 7 categories: No studies/Early childhood education, Primary, Secondary, Short-cycle tertiary, Bachelor or equivalent, Postgraduate, Not elsewhere classified. Categories ICSE: Public sector employees and Private sector employees.

(Total of income of the principal occupation of wage earners / Total hours worked by wage earners) * Deflator

For the main income variables, a variant of the conditional means imputation is used for the search and selection of donors. Qualitative variables (demand levels based on characteristics of income recipients) are mixed with geographic variables (areas of estimation). The omissions or refusals to deliver information that are considered for the purposes of this imputation are: Labor income from principal occupation (Income from Wages and Salaries, and Income from Self-Employment). For the variable of the number of hours actually worked in the reference month, a substitution methodology is used, that is, the imputation of the hours actually worked using data reported by the same informant in terms of hours usually worked.

According to the sample design, the calculation of the expansion factor is made up of two parts that account for each of the selection stages, that is, a weighting that accounts for the selection of first-stage units (blocks and sections ); and another, which accounts for the selection of second-stage units (dwellings) and is calculated as the inverse of the probabilities of selection of said sampling units. The resulting factor (formed by both selection stages) is adjusted by information annexed to the survey, which accounts for the population stocks obtained from the Population and Housing Census of 2017. This adjustment corresponds to the calibration by the Raking method.

Dissemination has three formats: 1. Institutional webpage for the publication of official tabulations (2010-2017), databases, and related documents. 2. PDF documents related to the analysis of specific profiles of income. 3. Micro-databases in STATA, SPSS and CSV format.