Year	% of children ages 12-23 months
1980	13.793916058859269
1981	15.053178857581011
1982	17.781141279082526
1983	37.390094202022766
1984	44.445967168762685
1985	49.97761881502633
1986	52.41948131579495
1987	57.060293407488956
1988	68.85144978196291
1989	72.77562217430965
1990	80.63517606756547
1991	76.88743381064297
1992	75.25838927664418
1993	75.81777514617073
1994	77.45862642336142
1995	77.62784776032309
1996	77.02592452225683
1997	76.47769826174759
1998	76.61606390284138
1999	76.38999007107195
2000	76.48867622682415
2001	77.07067313356522
2002	76.19431856267605
2003	77.43167990662214
2004	78.93641688133766
2005	79.94092598666252
2006	81.31114498132085
2007	81.13203210541852
2008	84.4347929710333
2009	86.6901710491491
2010	88.24983330965304
2011	89.31445938023117
2012	89.68891996059303
2013	89.43090329525813
2014	89.80785597045792
2015	90.23631293806504
2016	90.77649619670298
2017	90.62168151321316
2018	90.88008873628742
2019	90.28281733083513
2020	86.61593903696722
2021	84.86157300988401
2022	89.8309430924348