Frequencies for first 10,000 rows of lactate variable in nhamcsed2015 dataset :

    Lactate |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,831       98.31       98.31
        Yes |        169        1.69      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017