人じん口こう動どう態たい

noun

population dynamics; demographic changes

Refers to changes in population structure over time, including births, deaths, migration, and aging. Common in statistics, sociology, and policy contexts.

• 人じん口こう動どう態たい統とう計けいによると、出しゅっ生しょう率りつは過か去こ最さい低ていを記き録ろくした。

  According to vital statistics, the birth rate hit a record low.

• この地ち域いきの人じん口こう動どう態たいは、高こう齢れい化かと若じゃく年ねん層そうの流りゅう出しゅつが特とく徴ちょうだ。

  The population dynamics of this region are characterized by aging and the outflow of young people.