Year	% of relevant age group
1971	0.872250020503998
1972	1.22277998924255
1973	1.54772996902466
1974	1.798259973526
1975	1.99268996715546
1976	1.92700004577637
1977	2.71625995635986
1978	2.79554009437561
1979	3.32334995269775
1981	5.24304008483887
1989	5.73023986816406
1990	6.1240701675415
1991	6.58560991287231
1992	6.45023012161255
1997	7.51528978347778
2000	5.09345006942749
2001	5.24305009841919
2002	4.76590013504028
2003	5.70201015472412
2004	7.29831981658936
2005	7.69681978225708
2006	8.72387981414795
2007	8.27711963653564
2008	9.7111701965332
2009	10.0401802062988
2010	9.83269023895264
2011	11.4227104187012
2012	13.1396598815918
2013	14.6388397216797
2014	14.9009399414062
2015	18.2877902984619
2016	19.4709606170654
2017	21.1412506103516
2018	22.174560546875
2019	20.4797706604004
2021	18.234489440918
2022	15.9114999771118
2023	13.9630002975464