Year	% of children ages 12-23 months
1980	90
1981	90
1982	90
1983	90
1984	90
1985	90
1986	90
1987	90
1988	90
1989	90
1990	90
1991	90
1992	90
1993	90
1994	90
1995	90
1996	90
1997	90
1998	82
1999	74
2000	81
2001	84
2002	83
2003	84
2004	83
2005	86
2006	83
2007	85
2008	83
2009	83
2010	86
2011	89
2012	92
2013	95
2014	98
2015	93
2016	87
2017	90
2018	85
2019	85
2020	85
2021	86
2022	84