Year	% of children ages 12-23 months
1980	67
1981	68
1982	99
1983	99
1984	86
1985	91
1986	99
1987	87
1988	98
1989	96
1990	92
1991	99
1992	94
1993	99
1994	99
1995	99
1996	90
1997	99
1998	99
1999	95
2000	95
2001	98
2002	99
2003	72
2004	88
2005	89
2006	89
2007	93
2008	95
2009	96
2010	96
2011	97
2012	99
2013	99
2014	99
2015	99
2016	99
2017	99
2018	99
2019	99
2020	99
2021	99
2022	99