Year	% of children ages 12-23 months
1983	56
1984	57
1985	58
1986	58
1987	80
1988	80
1989	80
1990	90
1991	80
1992	85
1993	91
1994	96
1995	86
1996	86
1997	86
1998	86
1999	85
2000	85
2001	84
2002	84
2003	84
2004	85
2005	85
2006	85
2007	93
2008	87
2009	90
2010	96
2011	83
2012	82
2013	80
2014	85
2015	90
2016	97
2017	96
2018	94
2019	93
2020	96
2021	90
2022	90