Frequencies for first 10,000 rows of chf variable in namcs2011 dataset :

       Does |
patient now |
      have: |
 Congestive |
      heart |
    failure |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,808       98.08       98.08
        Yes |        192        1.92      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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