Year	% of children ages 12-23 months
1980	56
1981	64
1982	79
1983	81
1984	83
1985	87
1986	78
1987	85
1988	78
1989	92
1990	89
1991	96
1992	96
1993	97
1994	93
1995	98
1996	88
1997	98
1998	88
1999	89
2000	70
2001	99
2002	74
2003	90
2004	91
2005	95
2006	85
2007	99
2008	96
2009	95
2010	97
2011	99
2012	98
2013	99
2014	99
2015	99
2016	95
2017	80
2018	95
2019	92
2020	86
2021	80
2022	81