Frequencies for first 10,000 rows of tobaced variable in namcs2005 dataset :

    tobacco |
use/exposur |
          e |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,597       95.97       95.97
          1 |        403        4.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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