Year % of population ages 15-49 1990 2.3 1991 2.4 1992 2.5 1993 2.6 1994 2.5 1995 2.5 1996 2.4 1997 2.3 1998 2.2 1999 2 2000 1.9 2001 1.8 2002 1.7 2003 1.6 2004 1.5 2005 1.4 2006 1.3 2007 1.3 2008 1.2 2009 1.2 2010 1.1 2011 1.1 2012 1 2013 1 2014 0.9 2015 0.9 2016 0.8 2017 0.8 2018 0.7 2019 0.7 2020 0.6 2021 0.6 2022 0.6