@misc{Office of National Statistics2018,
author = {Office of National Statistics},
title= {Childbearing for women born in different years},
year = {2018},
URL = {https://www.ons.gov.uk/file?uri=/peoplepopulationandcommunity/birthsdeathsandmarriages/conceptionandfertilityrates/datasets/childbearingforwomenbornindifferentyearsreferencetable/current/cohortfertility2017final.xls},
}