The gender pension gap is the percentage difference in average pensions between women and men in the permanent resident population living in private households aged 65 and over. The calculations take into account pensions from the state old-age and survivors' insurance OASI (1st pillar) as well as any pensions from occupational pension plans (2nd pillar), private pension funds (3rd pillar) and pensions from foreign pension funds. In addition, according to the Eurostat standard, helplessness allowances from the OASI as well as supplementary benefits (SB) to the OASI are also included.