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

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