Year	% of children ages 12-23 months
1987	31
1988	25
1989	39
1990	52
1991	74
1992	86
1993	36
1994	59
1995	57
1996	69
1997	52
1998	93
1999	93
2000	94
2001	64
2002	80
2003	90
2004	70
2005	86
2006	96
2007	94
2008	86
2009	78
2010	97
2011	88
2012	78
2013	79
2014	79
2015	75
2016	75
2017	83
2018	83
2019	85
2020	89
2021	85
2022	81