Year	% of children ages 12-23 months
1987	85
1988	86
1989	87
1990	88
1991	88
1992	89
1993	90
1994	93
1995	87
1996	90
1997	86
1998	90
1999	90
2000	89
2001	89
2002	88
2003	91
2004	91
2005	93
2006	95
2007	94
2008	92
2009	91
2010	89
2011	87
2012	91
2013	91
2014	91
2015	91
2016	91
2017	91
2018	91
2019	91
2020	92
2021	92
2022	92