Year % of relevant age group 1976 69.8730773925781 1977 80.4978179931641 1978 75.1040267944336 1979 79.8545913696289 1981 79.9140319824219 1982 85.8664321899414 1983 90.2424163818359 1984 87.9463424682617 1985 84.2719116210938 1987 77.1653518676758 1988 74.8817825317383 1989 79.9238891601562 2005 77.3340301513672 2006 84.48681640625 2007 72.026496887207 2008 82.7280807495117 2009 82.6880798339844 2010 82.7998886108398 2011 80.8763122558594 2012 81.2596817016602 2013 80.4219284057617 2014 83.1010131835938 2015 83.6139831542969 2016 81.3655090332031 2017 79.2708206176758 2018 79.5246276855469 2019 80.7597503662109 2020 85.5869903564453 2021 76.8655319213867