Year % of relevant age group 1975 57.008960723877 1980 68.5635986328125 1981 61.9368095397949 1982 57.2780418395996 1983 54.7901802062988 1986 61.0570907592773 2010 83.6829986572266 2011 82.2830810546875 2012 81.8418884277344 2013 83.0999221801758 2014 83.7948913574219 2015 85.7979736328125 2016 84.9916763305664 2017 83.6164627075195 2018 81.1055374145508 2019 80.6598663330078