Year	% of children ages 12-23 months
1982	32
1983	41
1984	45
1985	51
1986	63
1987	85
1988	82
1989	80
1990	81
1991	81
1992	87
1993	86
1994	87
1995	90
1996	95
1997	94
1998	93
1999	91
2000	95
2001	96
2002	94
2003	91
2004	97
2005	98
2006	97
2007	95
2008	99
2009	99
2010	99
2011	99
2012	99
2013	99
2014	99
2015	99
2016	99
2017	99
2018	99
2019	99
2020	99
2021	99
2022	99