Year	% of relevant age group
1971	52.4654083251953
1972	52.6001815795898
1973	56.4547882080078
1974	58.8517417907715
1975	60.2637786865234
1976	61.5120010375977
1977	62.9420013427734
1978	61.5959205627441
1979	60.166919708252
1980	59.8551902770996
1981	58.8928108215332
1982	58.4574203491211
1983	57.9732093811035
1984	59.2583885192871
1985	57.2647705078125
1986	56.341251373291
1987	57.171501159668
1988	58.0454597473145
1989	58.8991394042969
1990	59.6380996704102
1991	60.6598281860352
1992	61.2682113647461
1993	62.1213111877441
1994	62.5811614990234
1995	62.3142700195312
1996	62.2731513977051
1997	62.8347816467285
1998	62.763858795166
1999	63.5625801086426
2000	64.596549987793
2001	67.1840896606445
2002	68.9609680175781
2003	69.8925628662109
2004	69.1170806884766
2005	69.6986618041992
2006	69.7083511352539
2007	71.4745101928711
2008	73.2792434692383
2009	74.0941162109375
2010	76.8250274658203
2011	78.8353576660156
2012	77.6332321166992
2013	79.2725982666016
2014	79.379753112793
2015	79.3787231445312
2016	79.1810836791992
2017	79.4333877563477
2018	79.1523895263672
2019	81.2492980957031
2020	82.2611618041992
2021	83.0258331298828