Year	% of children ages 12-23 months
1980	5.3550097995348835
1981	10.473730039623149
1982	11.249423355610679
1983	13.2677618192825
1984	15.094693043938966
1985	18.630925686916914
1986	22.862610960566677
1987	29.283404766678416
1988	34.202467451998345
1989	45.39628489776634
1990	55.83165147767336
1991	49.67434885495634
1992	47.996870308359405
1993	51.899127530929775
1994	55.02414245060724
1995	54.27840531692594
1996	56.066934803151916
1997	56.17550476422242
1998	54.75412570125003
1999	53.783684565597454
2000	57.570879123287575
2001	59.098350323205004
2002	60.55490413638481
2003	64.43814513035088
2004	69.41314831684578
2005	70.33862111193758
2006	72.0070700930384
2007	73.30729683291125
2008	74.43055229549445
2009	76.18577276274061
2010	75.80283867024839
2011	77.45036876418082
2012	76.79842598474984
2013	76.02486458264889
2014	77.5965135200118
2015	77.92751445262371
2016	78.48557923323229
2017	78.86962004515013
2018	79.213252131164
2019	79.55448684038761
2020	77.41385274417743
2021	73.47903990032461
2022	74.82801449731454