Frequencies for first 10,000 rows of smokces variable in namcs1994 dataset :

    smoking |
  cessation |
 couns/educ |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,557       95.57       95.57
          1 |        443        4.43      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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