Frequencies for first 10,000 rows of tobuse variable in natl2007 dataset :

Tobacco Use |
        RFP |
667=f_tobac |
          U |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,541       15.41       15.41
          2 |      8,402       84.02       99.43
          9 |         57        0.57      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015