As a result, reliance on households as the basic unit of account remains integral to almost all published poverty statistics. In determining whether a given level of household economic resources is sufficient to meet basic needs or allow participation in society, the number of people in the household clearly needs to be taken into account. The simplest approach to dealing with this is to consider household income or consumption per capita. This is the method used in the World Bank's PPP$1.90/day and PPP$3.10/day poverty lines.