Year	% of children ages 12-23 months
1980	22.702047594507164
1981	25.641144359053133
1982	33.44451289049256
1983	32.54181347525772
1984	37.05891745285013
1985	60.6868968537105
1986	63.77150764357269
1987	66.14838393397687
1988	77.79047669863131
1989	80.56858615295381
1990	82.95809949379972
1991	82.4421707879316
1992	84.00911051096818
1993	84.59107490986352
1994	84.3452907197012
1995	85.03874626865672
1996	87.36699070550928
1997	86.83888872966286
1998	90.6127413846271
1999	90.37590258077103
2000	90.51376026899133
2001	89.81962035180521
2002	88.75526834249776
2003	88.50774451287138
2004	88.66888002368039
2005	88.68366409200999
2006	88.44659003649399
2007	88.95160334806782
2008	88.77772800463357
2009	90.60485795536727
2010	90.80120234074869
2011	91.17559633986426
2012	88.1642524165656
2013	89.33789038298684
2014	88.18359648220796
2015	88.29854642316056
2016	90.77472911512001
2017	89.81256771820846
2018	89.02114234653672
2019	88.93725788243579
2020	87.29897837606556
2021	87.59941556709454
2022	88.37982346448462