00819nab a2200265 a 4500003000900000005001700009008004100026041000800067100001900075700002100094245012900115500001600244520001300260650002100273650001500294650001300309650002500322650001900347650002100366650003000387773007600417035001800493001000700511040003500518AR-ReUNN20260702001739.0260701s        ag |||||||||||||||||eng  0 aeng1 aBennett, N. G.1 aOlshansky, S. J.10aForecasting US ager structure and the future of social security : the impact of adjustements to official mortality schedules  app. 703-727  agráfs. 4aSeguridad Social 4aMortalidad 4aAncianos 4aAnalisis Demografico 4aGrupos de Edad 4aPromedio de Vida 4aEstados Unidos de America0 tPopulation and Development Reviewx0098-7921gv. 22 n. 4 (1996)w186924  a(IIGHI)181402203052  aAR-ReUNNbspacAR-ReUNNeaacr2