Year % of population ages 15-49 1990 0.3 1991 0.3 1992 0.4 1993 0.5 1994 0.6 1995 0.7 1996 0.7 1997 0.8 1998 0.8 1999 0.8 2000 0.8 2001 0.8 2002 0.8 2003 0.7 2004 0.7 2005 0.6 2006 0.5 2007 0.5 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 0.2 2017 0.2 2018 0.2 2019 0.2 2020 0.2 2021 0.2 2022 0.2