Year	% of relevant age group
1978	8.91244983673096
1979	10.0649499893188
1980	11.686710357666
1981	13.0348100662231
1989	15.8169603347778
1991	14.8712997436523
1992	14.5133600234985
1993	14.478440284729
1994	14.8934602737427
1995	15.6827802658081
1999	15.51243019104
2001	18.4774894714355
2002	18.0624809265137
2003	18.4633007049561
2004	18.6750602722168
2005	18.263370513916
2006	20.5944690704346
2007	17.6157207489014
2009	17.6445293426514
2012	20.2081604003906
2014	31.5421905517578
2015	33.6234588623047
2016	30.2730808258057
2017	36.6805381774902
2018	39.3258399963379
2019	45.6745414733887