Year	% of children ages 12-23 months
1980	46.81581286763484
1981	52.77678856827618
1982	55.166588118262005
1983	63.71555460437282
1984	69.11405324180603
1985	73.0502306456792
1986	75.31588094892182
1987	75.20179601655764
1988	80.33944495002204
1989	82.84277134439071
1990	84.38110446409779
1991	84.10145650089562
1992	82.74272175556199
1993	84.27779905958062
1994	86.66609030710448
1995	88.31232076706429
1996	89.81195233765685
1997	90.01850739621818
1998	90.33020807356277
1999	91.41783698733727
2000	91.84523818169575
2001	92.23941162961953
2002	92.78553775329355
2003	93.4321998237601
2004	93.66080039829795
2005	93.4940293868378
2006	93.70016373260545
2007	93.70697626334773
2008	93.80934426883822
2009	93.08436937392956
2010	93.89874221678667
2011	93.9630798650757
2012	94.11811610257544
2013	94.3248411252578
2014	94.5486778845953
2015	94.24116314633675
2016	94.17193251571746
2017	94.0721587479152
2018	94.46628620146463
2019	93.8037832300444
2020	93.45889360839979
2021	93.49371316810694
2022	93.57055382007464