Year % of relevant age group 1986 36.7779006958008 1987 37.3594589233398 1988 38.5750007629395 1989 39.069751739502 1990 39.6936492919922 1991 40.397289276123 1992 41.2250289916992 1993 42.1086883544922 1994 43.1083183288574 1995 44.0409889221191 1996 45.2610511779785 1997 46.4227104187012 1998 47.6358985900879 1999 49.1027908325195 2000 50.5248985290527 2001 52.2096214294434 2002 53.8795394897461 2003 56.4487686157227 2004 57.4837913513184 2005 58.410099029541 2006 59.7590103149414 2007 61.8320999145508 2008 63.8860397338867 2009 66.4460601806641 2010 68.3255233764648 2011 70.2290878295898 2012 72.5005416870117 2013 74.0548324584961 2014 76.6031188964844 2015 77.4298324584961 2016 78.0398788452148 2017 77.9409866333008 2018 78.355598449707 2019 78.5049209594727 2020 80.3391494750977 2021 80.4917526245117 2022 80.303466796875