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