Year	% of relevant age group
1976	10.4088897705078
1977	10.4689197540283
1978	11.9284400939941
1979	15.6990604400635
1980	18.7804393768311
1981	25.0739593505859
1983	28.8434505462646
1985	29.8269691467285
1986	32.0315704345703
1987	32.643009185791
1988	37.8961181640625
1989	33.6256408691406
1990	28.2935791015625
1991	31.9109306335449
1992	30.5137596130371
1993	31.5894603729248
1994	31.1903591156006
1995	32.097038269043
1996	32.967700958252
1997	37.2438201904297
1998	42.738639831543
1999	44.0923194885254
2001	43.963809967041
2002	41.642879486084
2005	39.5986785888672
2006	40.751880645752
2007	51.2210006713867
2009	66.4141006469727
2012	68.9371795654297
2013	70.495491027832
2014	66.885986328125
2015	66.717658996582
2017	64.4499816894531
2018	69.655891418457
2019	66.2812194824219