Head. It is a person recognized as such by members of the dwelling, by reason of authority, age or economic role. The head of the dwelling can be man or woman, married or single.

In each dwelling a head must exist.

Spouse or companion: It is a person who lives with the head of the dwelling and is united by matrimony or freely.

Child - stepchild: It includes both children of the current union as well as those of previous unions and also those adopted or raised.

Son - daughter-in-law. Son-in-law is the spouse or companion of the daughter. Daughter-in-law is the spouse or companion of the son.

Grandchild. They are children of the children of the head of the home.

Parents and in-laws. They are the parents by blood or by raising of the head of the home and parents of the spouse or companion.

Other relative. It is a person related to the head of the dwelling or to the spouse or companion and does not appear in any of the previous alternatives, such as niece/nephew, siblings, brother/sister-in-law, aunt/uncle, etc.

Employee. It is a person who lives in the dwelling working at the service of its inhabitants and who receives remuneration in money or in kind (food clothes) as nannies, cooks, domestic employees, chauffeurs, gardeners, etc.

Other non-relative. They are all persons who do not have any relationship with the head of the home. Examples: pensioned (persons who pay for their dwelling and their meals to another member of the dwelling), tenants (persons who only pay for the dwelling), guests (persons who are lodged without pay in a dwelling in the case of spending more than six months living in it), children of domestic employees, etc.