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