 
<prompt> Developmentally on track by household wealth | Percentage of youngest children age 36-59 months living with their mother who are developmentally on track | (Literacy-numeracy domain, Lowest, 28) (Social-emotional domain, Lowest, 73) (Literacy-numeracy domain, Second, 40) (Social-emotional domain, Second, 70) (Literacy-numeracy domain, Middle, 40) (Social-emotional domain, Middle, 68) (Literacy-numeracy domain, Fourth, 45) (Social-emotional domain, Fourth, 70) (Literacy-numeracy domain, Highest, 45) (Social-emotional domain, Highest, 76) <response> In general, the largest differentials in the proportions of children developmentally on track by background characteristics are in the literacynumeracy domain. For example, only 28% of children in the lowest wealth quintile are on track in the literacy-numeracy domain, as compared with 40% to 45% of children in the higher quintiles  