Population aged 18 and over per decile of personal income of the Basque Country and historical territory, according to age (%).

The operation Statistics of Personal and Family Income computes the income of people aged 18 years or more residing in the Basque Country and elaborates quantities such as gross income per capita or average personal income; it constitutes the basis for knowledge of the distribution of individual and family wealth by relying on fiscal data, linked to census variables of the population. The breakdown of income according to population strata such as sex, age or relation to productive activity (population unemployed, occupied, retired) allows an approximation to the knowledge of different groups.