Year % of relevant age group 1972 51.9563217163086 1973 58.2860412597656 1974 62.1776809692383 1975 72.5471496582031 1976 64.5576095581055 2018 100.330192565918 2019 102.131538391113 2020 103.359642028809 2021 105.565422058105