Year	% of children ages 12-23 months
1984	10
1985	32
1986	42
1987	68
1988	72
1989	59
1990	70
1991	93
1992	83
1993	87
1994	86
1995	84
1996	88
1997	88
1998	90
1999	88
2000	90
2001	91
2002	87
2003	88
2004	95
2005	93
2006	89
2007	91
2008	91
2009	94
2010	92
2011	92
2012	85
2013	91
2014	96
2015	89
2016	86
2017	93
2018	90
2019	99
2020	91
2021	93
2022	92