Year	% of children ages 12-23 months
1993	98
1994	88
1995	97
1996	91
1997	98
1998	96
1999	98
2000	97
2001	92
2002	98
2003	96
2004	96
2005	96
2006	94
2007	96
2008	98
2009	96
2010	98
2011	97
2012	96
2013	96
2014	93
2015	89
2016	82
2017	83
2018	75
2019	75
2020	63
2021	70
2022	71