国家人口与社会保障研究所：日本人口预测2023年修订版2021年至2070年（英文版）（81页）.pdf

1、 Population Projections for Japan(2023 revision):2021 to 2070 Appendix:Auxiliary Projections 2071 to 2120 Contents Key Messages(4)I Overview of the Population Projections for Japan(7)II Summary of the Projection Results(7)Projection Results for Medium-,High-,and Low-Fertility(Medium-Mortality)(7)1.T

2、rends in Total Population(7)2.Trends in the Size and Composition of the Population by the Major Three Age Groups(8)3.Trends in dependency ratio(9)4.Changes in the Population Pyramid(10)Projection Results for Medium-Fertility(High-and Low-Mortality)(10)1.Summary of Projection Results with High-Mortal

3、ity Assumption(10)2.Summary of Projection Results with Low-Mortality Assumption(10)Projection Results for High-and Low-Fertility(High-,Low-Mortality)(11)III Summary of the Method Used for Population Projections(11)1.Base Population(11)2.Assumptions for Fertility Rates and Sex Ratio at Birth(11)3.Ass

4、umptions for Survival Rates(Future Life Table)(15)4.Assumptions for International Migration Rates(Numbers)(16)5.Long-range Auxiliary Projections,Projections for the Japanese Population,and Conditional Population Projections(17)Summary of Projection Results(medium-mortality projection)(19)Summary of

5、Assumptions(20)IV Projection Results and Assumptions(23)Projection Results for Medium-,High-,and Low-Fertility(Medium-Mortality)(23)Projection Results for Medium-Fertility(Medium-,High-,and Low-Mortality)(35)Comparison of Projection Results with Different Assumptions(41)Assumptions(47)Long-range Aux

6、iliary Projections(55)Projections for the Japanese Population and Fertility Assumptions(63)Conditional Population Projections(71)Appendix Total Population,population by the three age groups:1950-2020(79)National Institute of Population and Social Security Research in Japan https:/www.ipss.go.jp/inde