Frequencies for first 10,000 rows of electrol variable in nhamcsed2014 dataset :

Electrolyte |
          s |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      8,968       89.68       89.68
        Yes |      1,032       10.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 11 Apr 2017