About the Authors

Ryo Oizumi

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

ooizumi-ryou@ipss.go.jp

Affiliation National Institute of Population and Social Security Research, Tokyo, Japan

Hisashi Inaba

Roles Formal analysis, Resources, Supervision, Writing – review & editing

Affiliation Graduate School of Mathematical Science, The University of Tokyo, Tokyo, Japan

Takenori Takada

Roles Investigation, Resources, Writing – review & editing

Affiliation Graduate School of Environmental Earth Science, Hokkaido University, Sapporo, Hokkaido, Japan

Youichi Enatsu

Roles Formal analysis, Methodology, Writing – review & editing

Affiliation Oshamambe Division, Institute of Arts and Sciences, Tokyo University of Science, Tokyo, Japan

Kensaku Kinjo

Roles Formal analysis, Supervision, Validation, Writing – review & editing

Affiliation Academic Support Center, Kogakuin University, Hachioji-shi, Tokyo, Japan

Competing Interests

The authors have declared that no competing interests exist.