00514oam 2200169z- 450 9910714976703321(CKB)4920000000462682(EXLCZ)99492000000046268220230509c2019uuuu -u- -engSocial Security : demographic trends and the funding shortfallWashington, D.CSocial SecurityBOOK9910714976703321Social Security : demographic trends and the funding shortfall3269680UNINA