Year	% of children ages 12-23 months
1999	69
2000	63
2001	58
2002	52
2003	47
2004	41
2005	62
2006	63
2007	71
2008	76
2009	83
2010	65
2011	71
2012	80
2013	74
2014	58
2015	64
2016	70
2017	75
2018	74
2019	68
2020	61
2021	58
2022	79