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