Year % of relevant age group 1987 56.5033912658691 1988 56.9867782592773 1989 57.3307800292969 1990 57.4033889770508 1991 57.7489395141602 1992 58.886589050293 1993 59.5338287353516 1994 59.2305793762207 1995 59.6688804626465 1996 59.9555511474609 1997 60.5949516296387 1998 61.4449501037598 1999 62.459529876709 2000 63.685001373291 2001 65.1587600708008 2002 66.9585266113281 2003 68.3076171875 2004 69.7272415161133 2005 71.0296478271484 2006 70.843132019043 2007 71.8349914550781 2008 72.2853622436523 2009 72.8211135864258 2010 73.7189483642578 2011 74.7441482543945 2012 74.6534729003906 2013 74.051513671875 2014 74.0520477294922 2015 73.9903564453125 2016 74.8341598510742 2017 74.3071365356445 2018 74.1663970947266 2019 74.7912368774414 2020 76.0140609741211 2021 76.4661636352539 2022 76.2573089599609