Year	% of children ages 12-23 months
1980	34.2125807379463
1981	41.1164711846441
1982	45.99479167652375
1983	51.11748214342491
1984	57.49471025578491
1985	62.90284553437505
1986	69.75735719596199
1987	76.06647241865062
1988	79.38648174534663
1989	84.15340926607861
1990	89.00424104092757
1991	83.24695308753796
1992	76.92191920387842
1993	83.08779032601747
1994	84.12854973842583
1995	84.17929197045356
1996	83.02973177768926
1997	81.78078812096162
1998	83.1993087007165
1999	82.51945173316307
2000	84.77763546240098
2001	85.16845097834083
2002	83.75553527971347
2003	85.24330835361106
2004	84.78800719404856
2005	85.4843169813589
2006	86.70321068871165
2007	89.09737381544214
2008	89.99441417723281
2009	90.43127511514803
2010	89.98382560080373
2011	90.14118778636127
2012	91.89961545775624
2013	91.96566470046217
2014	90.45584619830474
2015	90.38724060804073
2016	89.90295156272416
2017	89.16131718098161
2018	90.53468115290532
2019	92.25254436201105
2020	88.51016134828072
2021	86.77882778007984
2022	88.41065464311973