Year % of children under 5 1988 10.9 1989 9.6 1996 10.3 1998 5.6 2002 4.2 2005 6 2006 3.4 2012 2.8 2015 3.9 2016 4.2 2019 4.7 2020 4.6 2021 4.2 2022 4.2