Year	% of relevant age group
1987	51.2755317687988
1988	51.7811584472656
1989	52.1131591796875
1990	52.1285285949707
1991	52.5963706970215
1992	53.8842697143555
1993	54.5874481201172
1994	54.3310508728027
1995	54.950309753418
1996	55.4101486206055
1997	56.303150177002
1998	57.2498397827148
1999	58.4997711181641
2000	59.8333511352539
2001	61.5662117004395
2002	63.6288299560547
2003	65.0727081298828
2004	66.6513900756836
2005	68.0720520019531
2006	67.665397644043
2007	68.7332229614258
2008	69.2942276000977
2009	69.9048233032227
2010	70.9184722900391
2011	72.1150131225586
2012	72.0197525024414
2013	71.361572265625
2014	71.4237899780273
2015	71.3575286865234
2016	72.3315811157227
2017	71.7782897949219
2018	71.8339080810547
2019	72.439453125
2020	73.8619613647461
2021	74.4562911987305
2022	74.1536712646484