00931nab a2200289 a 4500003000900000005001700009008004100026041000800067100002700075700002900102245012900131500001600260520001300276650002700289650002100316650001900337650003200356650002600388650002800414650003600442773007600478942000800554035001800562001000700580999001900587040003500606AR-ReUNN20260702001739.0260701s        ag |||||||||||||||||eng  0 aeng1 aBennett, N. G.91120991 aOlshansky, S. J.911151910aForecasting US ager structure and the future of social security : the impact of adjustements to official mortality schedules  app. 703-727  agráfs. 4aSeguridad Social99912 4aMortalidad95964 4aAncianos96675 4aAnalisis Demografico910977 4aGrupos de Edad934536 4aPromedio de Vida977033 4aEstados Unidos de America944180 tPopulation and Development Reviewx0098-7921gv. 22 n. 4 (1996)w186924  cART  a(IIGHI)181402203052  c203052d203052  aAR-ReUNNbspacAR-ReUNNeaacr2