Refers to age ranges for the primary household maintainer. The primary household maintainer refers to the person in the household most responsible for paying the rent or mortgage, the taxes, the electricity, etc., for the dwelling. If no person in the household is responsible for such payments, the household member indicated on the questionnaire as "Person 1" is considered to be the only household maintainer. In order for a person identified as being responsible for the household payments to be considered as the household maintainer, that person must be 15 years of age or older and be related to Person 1 in terms other than as a lodger or an employee (or as a member of a lodger's or an employee's census family). In senior-led households, the primary household maintainer is aged 65 or over. In non-senior-led households, the primary household maintainer is less than 65 years of age.