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

     Throat |
    culture |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,823       98.23       98.23
        Yes |        177        1.77      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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