Year	% of children ages 12-23 months
1999	50
2000	46
2001	42
2002	39
2003	35
2004	31
2005	60
2006	60
2007	65
2008	75
2009	81
2010	70
2011	77
2012	80
2013	80
2014	63
2015	65
2016	73
2017	80
2018	80
2019	70
2020	65
2021	66
2022	78