Frequencies for first 10,000 rows of cig_rec variable in natl2014 dataset :

  Cigarette |
     Recode |
(Revised) Y |
        Yes |      Freq.     Percent        Cum.
------------+-----------------------------------
          N |      8,407       84.07       84.07
          U |        307        3.07       87.14
          Y |      1,286       12.86      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Jun 2016