Year	% of children ages 12-23 months
1980	5.167096208329621
1981	13.357980857817466
1982	14.309820461599955
1983	15.864221126392744
1984	17.725509228618137
1985	20.645853418380465
1986	26.236997222471988
1987	32.54489663000426
1988	37.19788199057157
1989	45.594147538029624
1990	52.87517481269158
1991	42.6013995723907
1992	40.975524122865195
1993	44.506499389274424
1994	45.545421549726925
1995	47.367389513233114
1996	46.9832696995578
1997	45.843936439504745
1998	43.984068466071456
1999	44.568270194231644
2000	48.54506396947531
2001	49.663074395378715
2002	51.60227297869385
2003	55.71566480907694
2004	59.878369109841806
2005	64.37868320731506
2006	66.00645041728527
2007	68.40819081722127
2008	69.48954608467199
2009	71.53967489015989
2010	71.50696325789728
2011	73.51598885737695
2012	72.14224572323715
2013	71.3136479330994
2014	72.53189600245338
2015	72.73927546481238
2016	73.9453386297114
2017	75.11223035943696
2018	75.42451162157771
2019	76.59522879100265
2020	74.91499207461338
2021	70.80394126647141
2022	70.42806511658893