Year % of relevant age group 1999 49.9732513427734 2001 53.4190101623535 2002 53.1423110961914 2003 56.3605117797852 2004 55.8333282470703 2005 55.7013092041016 2008 59.7169990539551 2010 60.2067985534668 2012 63.8316993713379 2013 64.3369674682617 2016 65.5392074584961