Year	% of children ages 12-23 months
1982	40
1983	59
1984	92
1985	74
1986	88
1987	91
1988	97
1989	99
1990	96
1991	99
1992	99
1993	99
1994	99
1995	99
1996	99
1997	99
1998	99
1999	87
2000	96
2001	98
2002	99
2003	94
2004	99
2005	97
2006	99
2007	99
2008	99
2009	99
2010	99
2011	97
2012	94
2013	99
2014	99
2015	99
2016	99
2017	99
2018	99
2019	99
2020	99
2021	96
2022	96