Year	% of children ages 12-23 months
1980	5.507298502452332
1981	5.828532390410987
1982	10.69866735003594
1983	13.394294690037501
1984	15.981005409219643
1985	18.49805077627938
1986	20.786888894025726
1987	29.299511139670745
1988	37.835408172851444
1989	48.741891238425204
1990	66.97617734883633
1991	57.431376607513414
1992	54.84068039072562
1993	58.464759937172076
1994	63.837601693249916
1995	67.9650767266782
1996	63.899492045626516
1997	62.077512952464794
1998	61.311765211128
1999	60.46388065014404
2000	60.309642976982126
2001	61.753357761994494
2002	61.8764153894217
2003	64.31112164514093
2004	67.39142457407522
2005	67.68749196671145
2006	67.42634020724671
2007	65.96260962250376
2008	70.17887639403693
2009	72.90022973622726
2010	76.02493719674486
2011	80.12388688797611
2012	79.95628606925227
2013	80.84658210493262
2014	82.8573211886186
2015	84.82338299799792
2016	85.98101964097384
2017	86.70872662004031
2018	88.43680592963359
2019	89.80381584541504
2020	84.77307352018651
2021	85.24878533428812
2022	91.04152796678427