Year	% of children ages 12-23 months
1984	19
1985	25
1986	30
1987	31
1988	31
1989	42
1990	54
1991	39
1992	49
1993	50
1994	50
1995	52
1996	55
1997	58
1998	58
1999	58
2000	65
2001	66
2002	64
2003	61
2004	67
2005	76
2006	77
2007	76
2008	74
2009	81
2010	78
2011	61
2012	82
2013	75
2014	73
2015	79
2016	87
2017	83
2018	84
2019	81
2020	75
2021	76
2022	76