Year	% of children ages 12-23 months
1982	5
1983	7
1984	31
1985	49
1986	62
1987	77
1988	48
1989	89
1990	85
1991	96
1992	73
1993	99
1994	87
1995	88
1996	85
1997	92
1998	97
1999	94
2000	92
2001	99
2002	96
2003	99
2004	74
2005	99
2006	98
2007	98
2008	99
2009	98
2010	95
2011	95
2012	94
2013	94
2014	94
2015	99
2016	95
2017	85
2018	84
2019	94
2020	83
2021	70
2022	76