Year	% of relevant age group
1970	26.0743198394775
1971	28.2015895843506
1972	29.4811592102051
1973	30.4472198486328
1974	32.7021102905273
1975	34.1935386657715
1984	44.4055786132812
1985	44.9109306335449
1986	46.1236190795898
1987	46.6068496704102
1988	47.6302490234375
1989	48.6705894470215
1990	49.0996513366699
1991	49.6337509155273
1992	50.3226699829102
1993	50.6595993041992
1994	51.7024116516113
1995	52.5550117492676
1996	53.8651885986328
1997	55.4640693664551
1998	56.1674194335938
1999	56.7266502380371
2000	57.6839904785156
2001	58.4136009216309
2002	60.0246810913086
2003	60.8958892822266
2004	61.8949584960938
2005	63.2607612609863
2006	63.7660102844238
2007	64.364990234375
2008	65.3514785766602
2009	66.8396224975586
2010	67.4460601806641
2011	67.4518432617188
2012	67.1795196533203
2013	66.8749008178711
2014	67.103157043457
2015	69.0315704345703
2016	70.0342178344727
2017	70.009391784668
2018	69.6949081420898
2019	69.8824234008789
2020	70.1155471801758
2021	72.4343109130859
2022	72.2123565673828