Households whose exclusive or main (prevailing) source of maintenance is any other type of pension than old age pension.

Additional sources of maintenance may include old age pension, other than pension unearned income (e.g. income from property, family benefits with supplements, gifts), hired work, a private farm in agiculture, self-employment outside a prvate farm in agriculture or free profession. The income gained from additional sources is lower than that from old age pensions and other types of pension.