Year	% of relevant age group
1971	0.26104998588562
1972	0.325879991054535
1973	0.556729972362518
1974	0.690050005912781
1975	0.670069992542267
1976	0.772979974746704
1977	0.98540997505188
1978	1.0231499671936
1979	1.38969004154205
1981	2.17149996757507
1989	2.30698990821838
1990	2.83257007598877
1991	2.66006994247437
1992	2.74310994148254
1997	4.36157989501953
2000	3.89580011367798
2001	3.87532997131348
2002	3.55865001678467
2003	3.42199993133545
2004	5.60956001281738
2005	5.88551998138428
2006	6.45229005813599
2007	6.27935981750488
2008	7.26344013214111
2009	7.16825008392334
2010	7.06894016265869
2011	8.10612010955811
2012	9.20625019073486
2013	10.2217998504639
2014	10.3627300262451
2015	13.3742904663086
2016	14.9825496673584
2017	15.9487199783325
2018	17.475679397583
2019	16.5080108642578
2021	15.7770004272461
2022	15.0756101608276
2023	13.7180004119873