Year	% of children ages 12-23 months
1980	41
1981	47
1982	53
1983	55
1984	84
1985	88
1986	84
1987	85
1988	84
1989	85
1990	87
1991	92
1992	90
1993	92
1994	97
1995	92
1996	99
1997	92
1998	97
1999	86
2000	94
2001	93
2002	91
2003	90
2004	98
2005	93
2006	92
2007	75
2008	94
2009	94
2010	85
2011	93
2012	90
2013	87
2014	95
2015	96
2016	92
2017	92
2018	85
2019	92
2020	89
2021	77
2022	85