Year	% of relevant age group
1971	44.2575302124023
1972	52.247501373291
1973	65.0388488769531
1974	54.8653984069824
1975	53.9344100952148
1977	52.1428909301758
1978	54.3332290649414
1979	55.5397911071777
1980	55.5513916015625
1981	55.3257484436035
1982	53.156810760498
1983	52.3193893432617
1984	53.6847305297852
1985	54.8351593017578
1986	58.9693984985352
1987	59.6252784729004
1988	59.5892486572266
1989	58.4503593444824
1990	53.9089813232422
1991	53.1870613098145
1992	53.3215713500977
1993	50.0354614257812
1994	49.5557289123535
1999	48.4910697937012
2000	48.4667091369629
2001	49.3305397033691
2002	50.0023002624512
2003	53.4745407104492
2004	58.327751159668
2005	61.7773017883301
2006	61.5240592956543
2007	61.4817581176758
2008	63.7564697265625
2009	64.0899810791016
2010	65.6658782958984
2011	65.7472915649414
2012	68.4384231567383
2013	51.3665313720703
2020	37.7045516967773
2021	41.7502784729004
2022	39.7609214782715
2023	38.9091186523438