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

       Does |
patient now |
      have: |
   Ischemic |
      heart |
    disease |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,663       96.63       96.63
        Yes |        337        3.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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