Year	% of children ages 12-23 months
1983	75
1984	68
1985	77
1986	86
1987	95
1988	90
1989	90
1990	90
1991	91
1992	93
1993	94
1994	95
1995	97
1996	98
1997	98
1998	98
1999	98
2000	99
2001	99
2002	99
2003	98
2004	99
2005	99
2006	99
2007	99
2008	99
2009	99
2010	99
2011	99
2012	99
2013	99
2014	99
2015	99
2016	99
2017	99
2018	99
2019	99
2020	99
2021	99
2022	99