Year	% of relevant age group
1970	48.762508392334
1971	48.7033386230469
1972	48.839298248291
1973	50.5658683776855
1974	51.9299583435059
1975	55.5414199829102
1976	57.698600769043
1977	60.4402389526367
1978	60.1369705200195
1979	56.3575706481934
1980	60.077278137207
1981	63.7449989318848
1982	64.5454177856445
1983	65.8722610473633
1984	68.3652877807617
1985	73.041618347168
1986	72.2416076660156
1987	71.8208999633789
1988	72.8415222167969
1989	73.3772201538086
1990	75.2238235473633
1991	76.1907730102539
1992	77.7847290039062
1993	78.5490570068359
1994	78.6389465332031
1995	80.3458786010742
1996	80.8119201660156
1997	81.044921875
1998	81.4795227050781
1999	81.963249206543
2000	81.4269332885742
2001	82.8065719604492
2002	82.4251174926758
2003	82.8254165649414
2004	86.4777679443359
2005	88.8130187988281
2006	85.4941711425781
2007	86.7157135009766
2008	88.928581237793
2009	87.1474609375
2010	87.9414825439453
2011	88.1163024902344
2012	88.8622589111328
2013	85.6487121582031
2014	85.1832427978516
2015	84.4860229492188
2016	83.8403167724609
2017	83.3146133422852
2018	84.2675094604492
2019	84.8498764038086
2020	86.4937515258789
2021	86.8287887573242
2022	86.6819686889648