Year	% of children ages 12-23 months
1985	54
1986	58
1987	75
1988	80
1989	84
1990	79
1991	76
1992	82
1993	88
1994	87
1995	85
1996	84
1997	83
1998	84
1999	85
2000	86
2001	88
2002	89
2003	90
2004	91
2005	92
2006	94
2007	95
2008	96
2009	97
2010	97
2011	96
2012	91
2013	91
2014	93
2015	92
2016	93
2017	96
2018	99
2019	98
2020	95
2021	95
2022	95