Year	% of children ages 12-23 months
1986	90
1987	90
1988	90
1989	90
1990	90
1991	89
1992	89
1993	89
1994	89
1995	89
1996	89
1997	89
1998	88
1999	93
2000	93
2001	93
2002	93
2003	93
2004	93
2005	94
2006	94
2007	94
2008	95
2009	95
2010	95
2011	96
2012	96
2013	96
2014	96
2015	96
2016	96
2017	96
2018	96
2019	96
2020	96
2021	96
2022	96