Year	% of children ages 12-23 months
1980	42.03070466914517
1981	48.748207317280624
1982	48.58057242930726
1983	47.626248964077625
1984	51.9311436309652
1985	60.052426747600094
1986	61.213047239503474
1987	60.359645068109984
1988	65.71504034153183
1989	69.34412092151791
1990	75.92156457137142
1991	80.357000800344
1992	82.64752718801975
1993	82.07377458163003
1994	82.47417876313659
1995	86.17795269251086
1996	84.11955050988198
1997	88.6413562559483
1998	90.88765718998191
1999	92.14854138587307
2000	93.52137446578573
2001	94.71118384779484
2002	93.52949172612729
2003	93.96649710182157
2004	93.04463700975863
2005	92.67514772452064
2006	94.38134269445425
2007	94.07493775435864
2008	94.93926835900986
2009	94.59115353271203
2010	93.4791431327761
2011	94.5582008343997
2012	95.24573808569708
2013	91.87759349510767
2014	92.79797783225781
2015	93.13515655143522
2016	92.56165563130226
2017	86.3284590814396
2018	91.2164976352231
2019	86.20656072421538
2020	82.99708394858557
2021	81.84568372396095
2022	81.25601811610849