Year % of relevant age group 1970 80.5934906005859 1971 88.6088790893555 1972 93.1928634643555 1973 94.9118118286133 1974 93.1009674072266 1975 92.9809417724609 1976 94.3987426757812 1977 90.9392013549805 1983 97.312141418457 2011 95.1889495849609 2012 97.5218200683594 2013 96.6104583740234 2014 98.1872329711914 2015 97.6334915161133 2016 97.8263931274414 2017 97.52880859375 2018 97.6894683837891 2019 96.9540100097656 2020 97.5408630371094 2021 97.7230606079102 2022 98.8135299682617