Year % of population ages 15-49 1990 1.3 1991 2.1 1992 3 1993 4.2 1994 5.5 1995 6.9 1996 8.3 1997 9.7 1998 11 1999 12.1 2000 13 2001 13.8 2002 14.5 2003 15 2004 15.5 2005 15.8 2006 16.2 2007 16.5 2008 16.8 2009 17.2 2010 17.5 2011 17.8 2012 18.1 2013 18.3 2014 18.6 2015 18.7 2016 18.8 2017 18.8 2018 18.8 2019 18.7 2020 18.5 2021 18.2 2022 17.8