Year % of children under 5 1989 5.8 1991 5.6 1992 5.7 1993 6.1 1994 4.6 1995 4.8 1996 5.6 1997 3.5 1998 3.8 1999 2.1 2000 3.9 2001 4 2002 2.7 2004 3.1 2006 4.8 2007 1.8 2008 2.4 2010 3.4 2012 2.7 2014 2.2 2016 4.4 2018 2.5