Year	% of children ages 12-23 months
1980	6.890754527657019
1981	12.067649414239348
1982	13.244675583903556
1983	15.231081642153256
1984	17.22277490178076
1985	20.998793052483595
1986	26.689074998578533
1987	31.83404294434051
1988	37.02276913456022
1989	48.548794416428535
1990	58.35829696574515
1991	52.430751407998336
1992	51.75540202932542
1993	55.008416812972385
1994	58.19432321992603
1995	57.72600627447378
1996	59.25398545322772
1997	59.16741815609138
1998	57.70961141718048
1999	57.63097156319558
2000	61.21356591644622
2001	62.11446114605933
2002	63.267777775366376
2003	66.7955922002772
2004	71.39362144412127
2005	72.65486051659325
2006	74.2408563592432
2007	75.61897991960517
2008	76.53366434661251
2009	78.44609446412518
2010	78.03348428296019
2011	78.8581617187234
2012	78.22710280196455
2013	77.26595291502835
2014	78.97851744205478
2015	79.06698057212967
2016	79.984694805512
2017	80.55940916908119
2018	80.59888626144449
2019	81.11185924368507
2020	78.8774326657998
2021	75.44150208928224
2022	76.84220202730971