Year % ages 15-24 1990 0.1 1991 0.1 1992 0.2 1993 0.2 1994 0.3 1995 0.4 1996 0.4 1997 0.5 1998 0.6 1999 0.6 2000 0.7 2001 0.7 2002 0.7 2003 0.6 2004 0.6 2005 0.6 2006 0.6 2007 0.6 2008 0.5 2009 0.5 2010 0.5 2011 0.5 2012 0.5 2013 0.5 2014 0.5 2015 0.5 2016 0.5 2017 0.5 2018 0.5 2019 0.4 2020 0.4 2021 0.4 2022 0.4