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