Year % of population ages 15-49 1990 0.2 1991 0.2 1992 0.3 1993 0.3 1994 0.4 1995 0.4 1996 0.4 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 0.3 2009 0.3 2010 0.3 2011 0.3 2012 0.3 2013 0.3 2014 0.3 2015 0.3 2016 0.3 2017 0.2 2018 0.2 2019 0.2 2020 0.2 2021 0.2 2022 0.2