Year	% of relevant age group
1976	21.7326393127441
1977	20.5801391601562
1978	26.247049331665
1985	19.636209487915
2007	28.5361309051514
2008	26.3891792297363
2009	24.4338302612305
2010	28.8469390869141
2011	29.3473892211914
2012	28.3864498138428
2013	29.7966194152832
2014	30.3159103393555
2015	32.3726692199707
2016	29.7668495178223
2017	29.9946098327637
2018	30.2442493438721
2019	30.723539352417
2020	30.1666107177734
2021	30.9926891326904