Year	% of children ages 12-23 months
1980	9.821940406658577
1981	11.4153311872336
1982	12.053074628215235
1983	37.37462503524425
1984	40.69130845795029
1985	46.531010703649486
1986	44.63162859238493
1987	54.72460046252227
1988	65.852131282493
1989	70.180560020722
1990	77.04276272398407
1991	72.17402467230698
1992	73.68367873330956
1993	74.21468249850983
1994	75.17507416775541
1995	78.28906513309957
1996	78.36791260300812
1997	75.35641047799628
1998	74.8797483538408
1999	75.9525379946174
2000	75.96917481130835
2001	76.9404915855238
2002	75.80320349010303
2003	77.1069827039766
2004	79.08849282423184
2005	80.50386593429238
2006	82.99296480341371
2007	83.59270490814887
2008	85.23741648534498
2009	87.79046722694775
2010	89.22818494635357
2011	90.28095383587772
2012	90.07333270489988
2013	90.07371671187425
2014	90.40606889383028
2015	91.10441533494561
2016	91.43742194471619
2017	91.27996835006904
2018	92.86448589379292
2019	92.5683492482574
2020	88.61883259486109
2021	87.23722147137087
2022	90.1521860026588