Year % of population ages 15-49 1990 0.4 1991 0.5 1992 0.5 1993 0.5 1994 0.5 1995 0.5 1996 0.5 1997 0.5 1998 0.5 1999 0.5 2000 0.5 2001 0.5 2002 0.4 2003 0.4 2004 0.4 2005 0.4 2006 0.4 2007 0.4 2008 0.4 2009 0.4 2010 0.4 2011 0.3 2012 0.3 2013 0.3 2014 0.3 2015 0.3 2016 0.3 2017 0.4 2018 0.4 2019 0.4 2020 0.4 2021 0.4 2022 0.4