Year	% of children ages 12-23 months
1981	95
1982	97
1983	93
1984	94
1985	80
1986	90
1987	80
1988	80
1989	80
1990	80
1991	80
1992	85
1993	62
1994	73
1995	78
1996	84
1997	87
1998	89
1999	97
2000	90
2001	93
2002	93
2003	97
2004	96
2005	96
2006	96
2007	96
2008	96
2009	96
2010	96
2011	95
2012	95
2013	93
2014	93
2015	93
2016	91
2017	91
2018	91
2019	91
2020	91
2021	91
2022	91