Year	% of children ages 12-23 months
1980	25.109012440630284
1981	25.406755669780505
1982	32.392052716095
1983	33.76817086148916
1984	41.71087488223685
1985	60.82663026922449
1986	67.11610243429548
1987	68.86359629156644
1988	80.8476288443082
1989	83.99835681965655
1990	87.42089680507586
1991	80.30103441950575
1992	83.55213145536514
1993	84.25771810104352
1994	81.74138368622461
1995	84.91096773843098
1996	86.23368046836623
1997	85.03181870387982
1998	87.94522488177164
1999	89.38546729166893
2000	90.43498449572577
2001	90.22642825472934
2002	88.6988789126607
2003	88.05058024152517
2004	89.08527738733892
2005	88.54067029512922
2006	88.83704359024695
2007	88.88386642429047
2008	90.10145972998426
2009	91.28287299984738
2010	90.79752951523149
2011	90.09761574544017
2012	85.97839893352395
2013	87.66906623320844
2014	87.49478642703298
2015	86.437315503151
2016	87.7338509586332
2017	88.833480655421
2018	88.9722350069619
2019	89.2343980913973
2020	86.07112647635519
2021	86.22667485515477
2022	88.1880170146857