Frequencies for first 10,000 rows of chf variable in namcs2015 dataset :

       Does |
patient now |
      have: |
 Congestive |
      heart |
    failure |
      (CHF) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,870       98.70       98.70
          1 |        130        1.30      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 25 Oct 2017