Year	% of children ages 12-23 months
1980	89
1981	82
1982	94
1983	89
1984	85
1985	88
1986	86
1987	84
1988	86
1989	85
1990	85
1991	91
1992	88
1993	88
1994	89
1995	93
1996	89
1997	90
1998	89
1999	85
2000	88
2001	92
2002	88
2003	99
2004	98
2005	97
2006	97
2007	97
2008	99
2009	99
2010	99
2011	98
2012	98
2013	98
2014	97
2015	97
2016	96
2017	94
2018	97
2019	96
2020	93
2021	92
2022	95