Year	% of children ages 12-23 months
1981	25
1982	32
1983	40
1984	48
1985	35
1986	58
1987	69
1988	69
1989	45
1990	71
1991	77
1992	52
1993	57
1994	65
1995	74
1996	57
1997	60
1998	59
1999	64
2000	69
2001	75
2002	85
2003	87
2004	91
2005	88
2006	85
2007	86
2008	93
2009	90
2010	92
2011	91
2012	92
2013	91
2014	92
2015	93
2016	93
2017	90
2018	95
2019	95
2020	86
2021	77
2022	77