Year % of children under 5 1986 70.9 1990 63.4 1991 73.6 1992 71.5 1993 69.2 1994 67.3 1995 65.8 1996 63.8 1997 59.6 1998 59.3 1999 59.9 2000 51.1 2001 53.2 2002 51.4 2003 47.8 2004 50.5 2005 46.2 2006 45.1 2007 43.2 2011 41.3 2012 41.2 2013 42 2014 36.2 2015 32.7 2018 30.9 2019 28 2022 23.6