Year	% of relevant age group
1973	56.8177108764648
1974	55.695728302002
1975	57.7697296142578
1976	58.9424514770508
1977	59.1568489074707
1978	70.2573928833008
1979	59.1920700073242
1980	56.6124801635742
1981	56.4815406799316
1982	54.7783508300781
1983	54.702018737793
1984	56.8118591308594
1985	58.4969100952148
1986	59.0195999145508
1987	60.628978729248
1988	61.0564613342285
1990	58.9498710632324
1991	59.5535583496094
1999	53.5972213745117
2000	54.0889892578125
2003	61.8203315734863
2004	64.6467590332031
2006	55.8421211242676
2007	60.1621017456055
2008	77.5510177612305
2009	77.3337707519531
2010	78.6887588500977
2011	76.7823486328125
2012	80.6754531860352
2014	78.4030685424805
2015	78.7583770751953
2016	77.566780090332
2017	71.9731903076172
2018	67.9414672851562
2019	68.86181640625
2020	69.9300003051758
2021	72.2926788330078
2022	72.6338272094727