Detail  age dependency ratio of the old old-age dependency ratio; old-age index 老年人口指数; 老齢人口依存比率   rōnen jinkō shisū; rōrei jinkō izon hiritsu Altenquotient; Altenlastquotient; Alterslastquote; Altenlastquote; Altersabhängigkeitsquotient; Altenindex; Altenkoeffizient Comment