Year	% of children ages 12-23 months
1980	36.79199486282859
1981	41.92375309085851
1982	45.987826074883706
1983	48.755841436107815
1984	55.62005134788545
1985	55.043405016444595
1986	55.510165989488975
1987	58.43284739184197
1988	61.77054814081666
1989	63.33941764646692
1990	67.69240295303251
1991	77.34416370605834
1992	76.93495918816562
1993	78.29821072720577
1994	79.8018937604079
1995	82.93016486953097
1996	81.5419256500144
1997	82.5806647056757
1998	85.50958163259281
1999	88.50845085937259
2000	90.56212809433144
2001	89.82758273828748
2002	91.21629858626834
2003	92.8267235260548
2004	93.28055459646265
2005	93.63578369655725
2006	93.53754764430859
2007	92.91641095802532
2008	92.10039766755293
2009	93.72977988346747
2010	93.27080636822528
2011	92.84342430131068
2012	93.13914494013086
2013	89.94616931603328
2014	88.57518167763739
2015	89.77934466905228
2016	89.44323580157639
2017	84.58297828549928
2018	85.87395251551095
2019	79.33558376077463
2020	75.36180961417914
2021	74.8816105582733
2022	78.71558095727524