Mahimman bayanai Tsakanin 2015 zuwa 2050, adadin mutanen duniya sama da shekaru 60 zai kusan ninka daga 12% zuwa 22%.Zuwa shekarar 2020, adadin mutanen da suka kai shekaru 60 zuwa sama zai zarce na yara kasa da shekaru 5.A cikin 2050, kashi 80% na tsofaffi za su kasance a cikin ƙasashe masu ƙanƙanta da matsakaicin kuɗi.Takin tsufa na yawan jama'a yana da yawa ...
Kara karantawa