Sources: 2017 Current Population Survey, Annual Social and Economic Supplement for US estimates; 2016 ACS; 2016 Puerto Rico Community Survey; Census International Database; WIC Administrative Data. Notes: The estimated coverage rates exceed 100 percent for infants in the District of Columbia, Maryland, Ohio, and Rhode Island, and for postpartum women in the District of Columbia. This is likely a result of sampling variability in the CPS-ASEC survey data used to estimate the number of eligible individuals in those States (denominator of the rate). The lower-bound range of the 95-percent confidence interval surrounding these rates is below 100 percent. See chapter 6 for more information on measures of statistical uncertainty for the eligibility estimates.