Frequencies for first 10,000 rows of tobaced variable in namcs2006 dataset :

    tobacco |
use/exposur |
          e |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      9,645       96.45       96.45
        yes |        355        3.55      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016