Year	% of children ages 12-23 months
1983	58
1984	73
1985	78
1986	78
1987	75
1988	95
1989	95
1990	97
1991	94
1992	91
1993	88
1994	85
1995	80
1996	83
1997	84
1998	84
1999	85
2000	85
2001	86
2002	86
2003	86
2004	87
2005	87
2006	93
2007	93
2008	97
2009	99
2010	99
2011	99
2012	99
2013	99
2014	99
2015	99
2016	99
2017	99
2018	99
2019	99
2020	99
2021	99
2022	99