Frequencies for first 10,000 rows of bfed variable in natl2015 dataset :

     Infant |
  Breastfed |
         at |
Discharge Y |
        Yes |      Freq.     Percent        Cum.
------------+-----------------------------------
          N |        818        8.18        8.18
          U |         98        0.98        9.16
          Y |      9,084       90.84      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Oct 2016