Year % of population ages 15-49 1990 0.1 1991 0.1 1992 0.1 1993 0.1 1994 0.1 1995 0.1 1996 0.2 1997 0.2 1998 0.2 1999 0.2 2000 0.3 2001 0.3 2002 0.3 2003 0.3 2004 0.3 2005 0.3 2006 0.3 2007 0.3 2008 0.4 2009 0.4 2010 0.4 2011 0.4 2012 0.4 2013 0.4 2014 0.4 2015 0.4 2016 0.4 2017 0.4 2018 0.4 2019 0.4 2020 0.3 2021 0.3 2022 0.3