Year % ages 15-24 1990 0.8 1991 0.9 1992 0.9 1993 0.9 1994 0.9 1995 0.8 1996 0.8 1997 0.8 1998 0.7 1999 0.7 2000 0.7 2001 0.6 2002 0.6 2003 0.6 2004 0.6 2005 0.6 2006 0.6 2007 0.6 2008 0.6 2009 0.6 2010 0.6 2011 0.6 2012 0.6 2013 0.5 2014 0.5 2015 0.5 2016 0.5 2017 0.5 2018 0.5 2019 0.5 2020 0.5 2021 0.5 2022 0.5