Year % of population ages 15-49 1990 1.8 1991 2.2 1992 2.6 1993 2.9 1994 3.1 1995 3.2 1996 3.2 1997 3.1 1998 3 1999 2.9 2000 2.7 2001 2.5 2002 2.3 2003 2.2 2004 2 2005 1.8 2006 1.7 2007 1.6 2008 1.5 2009 1.5 2010 1.4 2011 1.4 2012 1.3 2013 1.3 2014 1.2 2015 1.2 2016 1.1 2017 1 2018 1 2019 0.9 2020 0.9 2021 0.8 2022 0.8