Year	% of children ages 12-23 months
1984	85
1985	91
1986	96
1987	91
1988	77
1989	90
1990	99
1991	99
1992	99
1993	99
1994	99
1995	99
1996	99
1997	97
1998	99
1999	99
2000	99
2001	90
2002	99
2003	98
2004	98
2005	99
2006	99
2007	99
2008	99
2009	99
2010	99
2011	99
2012	95
2013	99
2014	93
2015	95
2016	98
2017	93
2018	96
2019	97
2020	95
2021	96
2022	95