Year	% of relevant age group
1975	67.8316192626953
1976	69.5913925170898
1977	74.7185363769531
1978	74.7667007446289
1979	79.4208602905273
1980	82.8300704956055
1981	86.0558319091797
1982	88.5315780639648
1983	90.2329025268555
1984	94.9307174682617
1985	94.8052062988281
1986	96.5046997070312
1987	95.2176513671875
1988	93.1177978515625
1989	92.9806137084961
1990	91.7957000732422
1991	91.0740737915039
1992	92.1088562011719
1993	92.3813781738281
1994	93.8773803710938
1995	97.3071136474609
1996	98.4716720581055
1997	97.9826278686523
1999	97.6176223754883
2000	96.747428894043
2001	97.5215225219727
2002	98.7117385864258
2003	98.2566299438477
2004	99.7613067626953
2005	100.493301391602
2006	100.936187744141
2007	101.777313232422
2008	101.216407775879
2009	99.7480926513672
2010	100.050811767578
2011	100.186973571777
2012	106.491287231445
2013	110.180541992188
2014	111.539886474609
2015	105.99284362793
2016	104.702178955078
2017	104.324859619141
2018	102.369117736816
2019	102.47265625
2020	102.597717285156
2021	102.820198059082
2022	102.239273071289