Frequencies for first 10,000 rows of glucose variable in nhamcsed2013 dataset :

    Glucose |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      8,158       81.58       81.58
        Yes |      1,842       18.42      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 7 Nov 2016