Year	% of children ages 12-23 months
1980	77.3629423250601
1981	87.35724806027888
1982	87.45441650108505
1983	88.39041124015766
1984	88.37195494453628
1985	87.52126712120048
1986	87.6896236262968
1987	80.86429668714509
1988	96.77652228547387
1989	93.34452107963395
1990	89.90625979546465
1991	87.47045082068895
1992	84.02986857057071
1993	85.1138658098152
1994	89.73761298600871
1995	88.7347944810997
1996	91.55084042737002
1997	91.45244777158649
1998	92.34889503652435
1999	92.33666822375476
2000	91.41242194829289
2001	91.32113418135415
2002	91.31054329710197
2003	93.15382585268067
2004	93.07767187954656
2005	92.15691436525812
2006	92.07899620198255
2007	92.15925280951949
2008	92.08122611472623
2009	90.0838534379662
2010	91.82765826082996
2011	91.65257061535935
2012	90.8264479618952
2013	91.82574656165605
2014	91.82482325153138
2015	91.73697096895009
2016	91.73702690737414
2017	90.91221151323445
2018	91.8238172931336
2019	90
2020	90.91057140551814
2021	91.81765731170687
2022	92