Year	% of children ages 12-23 months
1980	54
1981	79
1982	79
1983	99
1984	94
1985	99
1986	96
1987	97
1988	98
1989	99
1990	99
1991	94
1992	99
1993	99
1994	99
1995	99
1996	99
1997	99
1998	99
1999	99
2000	95
2001	97
2002	98
2003	99
2004	97
2005	99
2006	99
2007	99
2008	99
2009	99
2010	98
2011	99
2012	98
2013	99
2014	99
2015	99
2016	92
2017	95
2018	95
2019	95
2020	96
2021	92
2022	99