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

解説・定義

 

 

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