Year	% of children ages 12-23 months
1980	11.233621770673594
1981	12.646141229597012
1982	15.27859530590732
1983	32.282785573850106
1984	39.5616195615167
1985	44.714940837921965
1986	47.8588510715211
1987	52.611303677112886
1988	63.37729747915547
1989	68.54761673813393
1990	77.00362881522895
1991	73.0527468586397
1992	71.55997144465574
1993	71.06251646718619
1994	73.56408746409198
1995	74.0608494824295
1996	72.88297630663078
1997	72.36906369302389
1998	73.11415906470978
1999	72.63107051330037
2000	73.0127133801271
2001	73.51785700039113
2002	72.89680307745289
2003	74.35573473424355
2004	76.28758609998098
2005	76.65966782470603
2006	78.06217895174287
2007	77.82760486752973
2008	81.16247752279773
2009	83.35442370886487
2010	84.04103815736313
2011	85.09224215700448
2012	85.08683598102668
2013	84.7931464233487
2014	85.58315403444135
2015	85.80727428845309
2016	87.07220102534144
2017	87.00006117957375
2018	87.90108162599977
2019	87.84458158428387
2020	84.21318914457495
2021	82.60823294441396
2022	86.67240040707524