Year	% of children ages 12-23 months
1986	71
1987	66
1988	60
1989	48
1990	51
1991	54
1992	57
1993	58
1994	59
1995	80
1996	70
1997	65
1998	62
1999	60
2000	48
2001	48
2002	54
2003	60
2004	57
2005	74
2006	80
2007	84
2008	77
2009	79
2010	81
2011	84
2012	83
2013	84
2014	80
2015	80
2016	93
2017	90
2018	86
2019	89
2020	88
2021	87
2022	80