The working-age population is defined as the number of individuals aged 15 - 64 years. Data are for income replacement benefits and are based on administrative sources. Means-tested supplements such as housing benefits, family benefits or in-work benefits are not included. Data for the following countries are not available or not comparable: Austria, Canada, Estonia, Finland, Korea, Latvia, Norway, Slovak Republic, Switzerland (national sources report total number of benefit spells of any duration during a given year): Korea and Slovak Republic (national sources do not report numbers of recipient households, but the number of people living in them): Spain (nationally consolidated data on non-categorical SA not available). However, typically, a household cannot receive the different benefits at the same time (i.e., families receive either lone parent or non-categorical SA).