Frequencies for first 10,000 rows of chf variable in namcs2012 dataset :

       Does |
patient now |
      have: |
 Congestive |
      heart |
    failure |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,835       98.35       98.35
        Yes |        165        1.65      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016