Year	% of children ages 12-23 months
1986	98
1987	98
1988	99
1989	98
1990	98
1991	98
1992	94
1993	32
1994	41
1995	99
1996	99
1997	83
1998	74
1999	96
2000	83
2001	91
2002	99
2003	99
2004	99
2005	98
2006	98
2007	91
2008	97
2009	75
2010	39
2011	85
2012	91
2013	99
2014	83
2015	95
2016	96
2017	93
2018	90
2019	97
2020	93
2021	93
2022	96