Year % of relevant age group 1975 93.33333 1976 103.16027 1992 129.59641 2007 111.54401 2008 108.28488 2009 104.41826 2011 107.08783 2012 97.55352 2014 110.53412 2015 112.35294 2017 95.05095 2018 99.57082