Frequencies for first 10,000 rows of chf variable in namcs2013 dataset :

       Does |
patient now |
      have: |
 Congestive |
      heart |
    failure |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,822       98.22       98.22
        Yes |        178        1.78      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017