Year	% of children ages 12-23 months
1985	8
1986	8
1987	8
1988	18
1989	26
1990	42
1991	34
1992	38
1993	46
1994	39
1995	49
1996	53
1997	52
1998	52
1999	40
2000	43
2001	49
2002	61
2003	63
2004	69
2005	77
2006	78
2007	74
2008	74
2009	73
2010	73
2011	66
2012	65
2013	64
2014	66
2015	71
2016	76
2017	77
2018	77
2019	77
2020	70
2021	77
2022	77