Year	% of children ages 12-23 months
1980	33.95923551314122
1981	57.084675053804204
1982	59.809076449614416
1983	60.24402052971121
1984	74.50151800803953
1985	68.93285563052957
1986	74.5723886840705
1987	69.50275500722861
1988	69.31306800450854
1989	72.66054744282992
1990	85.42106264063099
1991	88.77570578945529
1992	89.42021945315079
1993	82.9881333218759
1994	88.66520429259133
1995	90.0821576812703
1996	92.007391789735
1997	92.65634230011395
1998	92.74464846875081
1999	94.98644862903329
2000	92.56942251717209
2001	94.51768273626396
2002	94.83092060902212
2003	96.40657656031098
2004	95.89790243990663
2005	95.93247310410905
2006	96.74850749369395
2007	96.81595193607569
2008	96.81045222942217
2009	96.4157222580464
2010	96.8879271762308
2011	96.73385983001626
2012	96.89718710161789
2013	96.38691074943821
2014	96.0885186651136
2015	95.2857874840971
2016	94.47710256427422
2017	94.28627358372555
2018	94.20269023459052
2019	94.26583649330706
2020	93.84003686798457
2021	93.58710633853086
2022	93.66781364980382