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