Year	% of children ages 12-23 months
1980	4.879008531921153
1981	13.337797971708522
1982	47.42729503452436
1983	52.35426184891257
1984	63.3873729223157
1985	60.72152106615866
1986	69.43927170453705
1987	68.47433415439875
1988	70.47627356930202
1989	77.89973382863872
1990	78.22051053431082
1991	84.7468235835566
1992	76.39833349607785
1993	85.60574228004658
1994	84.45756234915527
1995	85.06153808450152
1996	90.64162060176757
1997	86.2636189776267
1998	90.64279519370837
1999	87.28119956397929
2000	89.44291514516993
2001	91.13043965324096
2002	89.36993936424328
2003	87.24508898440553
2004	90.3909729097291
2005	92.36100315984454
2006	90.92682078915348
2007	92.5675740452245
2008	93.31225307414022
2009	95.38533686943826
2010	93.32773233924962
2011	92.40275300245156
2012	89.27369554576603
2013	93.32025508952661
2014	90.77353925760613
2015	92.60472335083088
2016	91.60602031066851
2017	89.85980382443277
2018	90.34921313038986
2019	88.18354096861111
2020	81.2531905764491
2021	80.2411380315673
2022	84.90054361005578