Frequencies for first 10,000 rows of bfed variable in natlterr2014 dataset :

     Infant |
  Breastfed |
         at |
Discharge Y |
        Yes |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      1,077       10.77       10.77
          N |      1,708       17.08       27.85
          U |        239        2.39       30.24
          Y |      6,976       69.76      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Jun 2016