Frequencies for first 10,000 rows of f_bfed variable in natl2009 dataset :

  Breastfed |
         at |
Discharge R |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,947       99.47       99.47
          1 |         53        0.53      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015