Year	% of children ages 12-23 months
1983	74
1984	70
1985	70
1986	64
1987	75
1988	68
1989	84
1990	79
1991	85
1992	85
1993	85
1994	76
1995	76
1996	76
1997	82
1998	79
1999	75
2000	72
2001	69
2002	65
2003	62
2004	63
2005	64
2006	69
2007	68
2008	73
2009	77
2010	72
2011	77
2012	79
2013	78
2014	84
2015	86
2016	84
2017	81
2018	81
2019	83
2020	84
2021	87
2022	86