Year % of relevant age group 1975 37.0867805480957 1976 38.9281883239746 1977 39.1912307739258 1978 40.6657905578613 1981 74.8223495483398 1999 87.644660949707 2000 84.1321563720703 2001 100.477096557617 2017 98.1309280395508 2018 98.3613204956055 2019 99.3010025024414 2020 99.4400024414062 2021 99.9929962158203 2022 97.3929977416992