Year % of population ages 15-49 1990 2.1 1991 2.3 1992 2.5 1993 2.5 1994 2.6 1995 2.6 1996 2.6 1997 2.5 1998 2.5 1999 2.4 2000 2.3 2001 2.2 2002 2.2 2003 2.1 2004 2 2005 1.9 2006 1.9 2007 1.8 2008 1.8 2009 1.7 2010 1.7 2011 1.7 2012 1.7 2013 1.7 2014 1.7 2015 1.7 2016 1.7 2017 1.7 2018 1.7 2019 1.7 2020 1.7 2021 1.7 2022 1.7