Ebeling, Marcus https://orcid.org/0000-0002-6531-8525
Peters, Frederik https://orcid.org/0000-0001-5832-8410
Funding for this research was provided by:
Max Planck Institute for Demographic Research
Article History
Received: 14 March 2025
Accepted: 14 November 2025
First Online: 9 December 2025
Declarations
:
: None.
: Not required. This study is based on aggregated population data that are published by national statistical authorities. The data are freely accessible and can be analysed without previous ethical vetting. Therefore, an ethical approval was not obtained for this study.
: Not applicable.