Year	% of children ages 12-23 months
1980	29
1981	66
1982	87
1983	89
1984	96
1985	89
1986	94
1987	93
1988	90
1989	66
1990	90
1991	79
1992	91
1993	92
1994	93
1995	94
1996	95
1997	96
1998	99
1999	97
2000	98
2001	90
2002	92
2003	90
2004	63
2005	59
2006	50
2007	65
2008	39
2009	64
2010	78
2011	82
2012	82
2013	84
2014	78
2015	80
2016	74
2017	67
2018	44
2019	68
2020	89
2021	85
2022	76