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

    Tobacco |
use/Exposur |
          e |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,832       98.32       98.32
        Yes |        168        1.68      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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