Year	% of children ages 12-23 months
1992	52
1993	48
1994	57
1995	53
1996	70
1997	86
1998	84
1999	83
2000	80
2001	92
2002	89
2003	84
2004	88
2005	90
2006	85
2007	96
2008	84
2009	93
2010	91
2011	89
2012	94
2013	92
2014	89
2015	83
2016	68
2017	69
2018	68
2019	65
2020	61
2021	61
2022	58