@misc{Human Fertility Database2022,
author = {Human Fertility Database},
title= {Max Planck Institute for Demographic Research (Germany) and Vienna Institute of Demography (Austria},
year = {2022},
URL = {www.humanfertility.org},
publisher = {Max Planck Institute for Demographic Research & Vienna Institute of Demography},
address = {Rostock & Vienna},
note = {Available at www.humanfertility.org (data downloaded in August 2022).},
}