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