Year % ages 15-24 1990 3.1 1991 3.4 1992 3.7 1993 3.8 1994 3.9 1995 3.9 1996 3.8 1997 3.6 1998 3.5 1999 3.3 2000 3.1 2001 2.9 2002 2.7 2003 2.6 2004 2.5 2005 2.4 2006 2.3 2007 2.2 2008 2.3 2009 2.3 2010 2.3 2011 2.3 2012 2.3 2013 2.2 2014 2.1 2015 2 2016 1.9 2017 1.8 2018 1.8 2019 1.7 2020 1.6 2021 1.6 2022 1.5