Year	% of children ages 12-23 months
1986	31
1987	58
1988	69
1989	92
1990	70
1991	76
1992	70
1993	64
1994	60
1995	68
1996	90
1997	68
1998	66
1999	99
2000	91
2001	83
2002	78
2003	82
2004	87
2005	87
2006	99
2007	90
2008	71
2009	69
2010	74
2011	77
2012	87
2013	76
2014	76
2015	75
2016	82
2017	84
2018	93
2019	81
2020	81
2021	67
2022	90