Year % of relevant age group 1971 8.25150012969971 1975 11.135009765625 1976 13.349479675293 1979 18.5945892333984 1980 18.8244209289551 1999 27.2006206512451 2000 29.9685592651367 2001 32.968189239502 2002 36.1429481506348 2004 38.6136093139648 2005 40.356559753418 2006 44.6287803649902 2007 46.959529876709 2008 49.2552909851074 2009 52.2998008728027 2010 55.6314506530762 2011 59.0723686218262 2012 58.8451995849609 2013 56.9629096984863 2014 58.7329902648926 2015 62.9456405639648 2016 63.8793106079102 2017 58.037540435791 2018 58.1000709533691 2019 58.2871894836426 2020 57.8144989013672 2021 56.0023498535156 2022 50.5782814025879