Year	% of relevant age group
1971	54.9599304199219
1972	45.3572616577148
1973	49.4016609191895
1974	46.9888305664062
1975	49.7807884216309
1976	41.2126312255859
1977	50.6119613647461
1978	53.8194007873535
1979	61.0948600769043
1980	47.5521583557129
1981	57.0068588256836
1982	62.7674217224121
1983	68.4929733276367
1984	71.3906631469727
1986	69.3723220825195
1988	77.0019836425781
1991	86.1150436401367
1992	85.0095062255859
1993	82.9435424804688
1999	77.2650909423828
2000	79.8023529052734
2001	80.7515182495117
2002	85.5234375
2003	84.8239517211914
2004	83.4057922363281
2005	81.2080993652344
2006	84.5176620483398
2008	89.026481628418
2009	88.6312789916992
2010	88.2098693847656
2011	90.6092376708984
2012	93.5077514648438
2013	100.211700439453
2014	99.4403381347656
2015	96.7952499389648
2016	98.0651931762695
2017	98.3193817138672
2018	97.9292678833008
2019	97.1238327026367
2022	99.2143096923828