Year	% of children ages 12-23 months
1980	9.747285580951226
1981	17.338761895983595
1982	28.796175137447126
1983	37.097367195521784
1984	43.52583161504408
1985	51.40614396598174
1986	61.597087039475454
1987	65.47930785565609
1988	71.2353378610282
1989	79.34764066112871
1990	82.21329028187571
1991	79.66114337471362
1992	72.86260733558494
1993	79.89204353166794
1994	80.55403217558903
1995	82.07840813005537
1996	79.79877174064396
1997	79.3228281057891
1998	80.19120290358879
1999	80.77456575311031
2000	83.81255288246933
2001	84.13449010533168
2002	82.0303588773696
2003	82.30240059878606
2004	82.94046440369029
2005	83.54770423688699
2006	85.3280374919951
2007	86.54553801408322
2008	87.17141937597675
2009	87.93680641674396
2010	87.51365913752944
2011	86.99701452756094
2012	88.68686299757138
2013	89.15704532427864
2014	88.77739182460171
2015	87.4295140405854
2016	87.53840480271957
2017	88.2268623664445
2018	88.05649224410207
2019	88.13364932529791
2020	83.13446725196269
2021	80.29791413896002
2022	83.81782825933651