Year % of population ages 15-49 1990 1.3 1991 1.7 1992 2.1 1993 2.6 1994 3.1 1995 3.6 1996 4.1 1997 4.5 1998 4.8 1999 5 2000 5.1 2001 5.1 2002 5.1 2003 5 2004 4.9 2005 4.8 2006 4.7 2007 4.7 2008 4.6 2009 4.5 2010 4.3 2011 4.2 2012 4.1 2013 4 2014 3.9 2015 3.7 2016 3.6 2017 3.5 2018 3.3 2019 3.2 2020 3.1 2021 3 2022 2.9