Year	% of children ages 12-23 months
1980	12.476151327291312
1981	13.798218321558677
1982	15.505663446775227
1983	54.880539385944466
1984	66.59720454060128
1985	72.89517939425689
1986	72.5037034090036
1987	72.64882595382589
1988	88.15095783257583
1989	89.50305725947659
1990	92.44224301145843
1991	91.44068608970967
1992	87.21364060581475
1993	86.05139963915829
1994	85.1320224240704
1995	82.86224212331292
1996	84.34738072867533
1997	85.27595941746486
1998	86.69417957482128
1999	87.79882348293538
2000	88.78738857098452
2001	89.4427450255808
2002	88.55343012535847
2003	90.12991670919509
2004	90.52834794621721
2005	90.96601294795516
2006	94.39156206463095
2007	94.30043264770987
2008	96.80176843822711
2009	98.07059974786506
2010	97.79359822663076
2011	97.86316878114513
2012	97.73940615537293
2013	96.16602135059883
2014	97.4545961278511
2015	97.95780739534695
2016	96.99568305390716
2017	96.43786667533371
2018	95.92214331253885
2019	94.83406374401041
2020	94.901205395545
2021	92.34507536382849
2022	93.01498765359844