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