Year	% of children ages 12-23 months
1980	60
1981	79
1982	87
1983	84
1984	76
1985	78
1986	90
1987	93
1988	97
1989	77
1990	90
1991	96
1992	92
1993	89
1994	87
1995	91
1996	84
1997	99
1998	83
1999	88
2000	82
2001	82
2002	94
2003	89
2004	88
2005	89
2006	90
2007	90
2008	89
2009	81
2010	83
2011	83
2012	90
2013	91
2014	95
2015	93
2016	93
2017	96
2018	94
2019	95
2020	95
2021	89
2022	90