Year	% of children ages 12-23 months
1980	4.8829219205568
1981	10.59074058183673
1982	11.256592387416337
1983	12.308299798482297
1984	17.271187024264353
1985	23.306940427868657
1986	28.613304144091938
1987	33.46141720385115
1988	38.507191480270926
1989	48.02641605548017
1990	57.19805136902958
1991	43.576930171595585
1992	44.80492666825195
1993	44.22147012497715
1994	49.714357140359226
1995	49.233575213723896
1996	47.44600300808834
1997	45.893460571233916
1998	46.568081269428525
1999	46.21313533664207
2000	48.629423423925466
2001	47.71929628515045
2002	48.744217344319
2003	51.55379814867624
2004	55.61543561278939
2005	58.134770289639455
2006	59.72729958881333
2007	61.642104258555456
2008	65.0935335998994
2009	69.30246899362477
2010	66.89686429404392
2011	66.75769029063497
2012	64.7544635278482
2013	64.35169256742286
2014	64.38688782553211
2015	64.03641169362191
2016	67.17028105588079
2017	68.725927294559
2018	70.22167197633455
2019	72.35415708461582
2020	69.86105828850617
2021	66.4478319631778
2022	68.3009986015574