Year % of population ages 15-49 1990 1.44022633747568 1991 1.76973465591544 1992 2.05431629761375 1993 2.32881765769915 1994 2.51108738907934 1995 2.64255261523832 1996 2.70451096758772 1997 2.73797313864215 1998 2.72538717463445 1999 2.65753931487434 2000 2.61041812432051 2001 2.5138980553 2002 2.38684567050724 2003 2.27790676092707 2004 2.18041166157322 2005 2.09763526602415 2006 1.98440124322471 2007 1.92006994714566 2008 1.86835439188985 2009 1.82242980449977 2010 1.78472909345179 2011 1.75573620995911 2012 1.72336821062128 2013 1.70212401079453 2014 1.68054297018062 2015 1.64564227226861 2016 1.58981480049562 2017 1.55987037737965 2018 1.52789321755106