Bisa ga wannan kididdiga, shekaru daga 2040 zuwa 2050 ya kamata su sami raguwa na yawan canji na shekara-shekara. Yawan jama'ar Koriya ta Kudu ya nuna karuwar karuwa tun lokacin da aka kafa jamhuriyar a 1948, sannan kuma ya ragu sosai tare da tasirin ci gaban tattalin arzikinta. A cikin ƙididdigar hukuma ta farko, da aka yi a shekarar 1949, an kiyasta yawan jama'ar Koriya ta Kudu ya kai mutane 20,188,641. A ƙididdigar shekarar 1980, an kiyasta yawan jama'ar Koriya ta Kudu ya ragu da kimanin kashi 1.1% a kowace shekara daga shekara ta 1949 zuwa shekara ta 1955, da kashi 0.28% a shekara ta 2025, da kashi 0.18% a shekara ta 52,701,817, da kuma kashi 0.04% a shekara ta 2035. Bisa ga waɗannan kididdigar, shekaru daga 2040 zuwa 2050 ya kamata ya sami raguwa a cikin yawan canji na shekara-shekara. Yawan jama'ar Koriya ta Kudu ya karu da sauri zuwa kashi 42.2% a shekara-shekara tsakanin 1955 zuwa 1955, da kuma a cikin shekaru goma sha biyar da suka gabata. A cikin shekarun da suka gabata, an kiy
Miliyan 21.5