Year	% of relevant age group
1970	66.7592391967773
1971	69.0500335693359
1972	63.4702606201172
1973	65.4163208007812
1974	66.8387985229492
1975	67.5278015136719
1976	68.0204162597656
1977	70.1314468383789
1978	71.1447296142578
1979	72.9396667480469
1980	74.6011734008789
1981	75.5962905883789
1982	76.9127502441406
1983	78.484748840332
1984	80.1934280395508
1985	80.0540084838867
1986	81.7332611083984
1987	82.6001205444336
1988	83.0124435424805
1989	83.6936187744141
1990	84.4833679199219
1991	85.3908233642578
1992	87.3010482788086
1993	87.354606628418
1994	86.8258819580078
1995	87.4482269287109
1996	87.9698867797852
1997	88.7861404418945
1998	89.7497863769531
1999	90.20068359375
2000	90.6361618041992
2001	90.4667892456055
2002	91.656608581543
2003	91.898063659668
2004	92.4840774536133
2005	93.0928497314453
2006	94.0318374633789
2007	94.9786224365234
2008	94.9760971069336
2009	95.3559494018555
2010	95.7089614868164
2011	95.7870788574219
2012	96.7715377807617
2013	96.8072509765625
2014	97.3422317504883
2015	95.9592132568359
2016	95.4451522827148
2017	94.5148315429688
2018	93.7482528686523
2019	93.5933837890625
2020	94.0604782104492
2021	94.8043518066406
2022	94.9711532592773