Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Dangane da kididdigar Hasashen Jama'a na Koriya ta Kudu na Worldometers, ana tsammanin Koriya ta Kudu za ta sami ƙaruwar canjin shekara-shekara na 0.36% zuwa 2020, ƙaruwar canjin shekara-shekara na 0.28% zuwa 2025, ƙaruwar canjin shekara-shekara na 0.18% ta 52,701,817, da ƙaruwar canjin shekara-shekara na 0.04% zuwa 2035. Dangane da waɗancan ƙididdigar, shekarun daga 2040 zuwa 2050 ana tsammanin za su sami raguwar ci gaba na canjin canjin shekara-shekara. Yawan jama'ar Koriya ta Kudu ya nuna ci gaba mai ƙarfi tun lokacin da aka kafa jamhuriyar a 1948, sannan ya ragu sosai tare da tasirin ci gaban tattalin arzikinta. A ƙidaya na farko da aka yi a shekara ta 1949, an ƙidaya yawan mutanen Koriya ta Kudu a matsayin 20,188,641. Adadin jama'a a shekara ta 1985 ya kai 40,466,577. Yawan jama'a ya yi jinkiri, kimanin kimanin 1.1% a kowace shekara a lokacin daga 1949 zuwa 1955, lokacin da aka yi rajista a yawan mutane miliyan 21.5. Girman ya karu tsakanin 1955 da 1966 zuwa miliyan 29.2 ko kuma na shekara-shekara na 2.8%, amma ya ragu sosai a lokacin 1966 zuwa 1985 zuwa na shekara-shekara na 1.7%. Bayan haka, an kiyasta matsakaicin yawan ci gaban shekara-shekara ya kasance ƙasa da 1%, kwatankwacin ƙananan ƙarancin ci gaban yawancin ƙasashe masu masana'antu da kuma ƙimar da Ma'aikatar Lafiya da Harkokin Jama'a ta kafa don shekarun 1990. A ranar 1 ga Janairu, 1989, an kiyasta yawan jama'ar Koriya ta Kudu ya kai kimanin miliyan 42.2. Rabon yawan mutanen da ke ƙasa da shekaru goma sha biyar ya tashi kuma ya faɗi tare da ƙimar girma. A shekara ta 1955, kimanin kashi 41.2% na yawan mutanen sun kasance a karkashin shekaru goma sha biyar, kashi da ya tashi zuwa kashi 43.5% a shekarar 1966 kafin ya sauka zuwa 38.3% a shekarar 1975, 34.2% a shekarar 1980, da 29.9% a shekarar 1985. A baya, yawancin yara dangane da yawan jama'a sun sanya matsin lamba a kan tattalin arzikin kasar, musamman saboda an saka jari mai yawa a cikin wuraren ilimi. Tare da raguwa a cikin yawan yawan jama'a da kuma karuwa a cikin shekaru masu shekaru (daga shekaru 18.7 zuwa 21.8 tsakanin 1960 da 1980), tsarin shekaru na...  Tambaya: A shekarar 1985, adadin yawan jama'a nawa ne?
40,466,577 (shekara ɗaya da rabi)