Frequencies for first 10,000 rows of cig_rec6 variable in natlterr2007 dataset :

 Cigarettes |
   Recode U |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,252       42.52       42.52
          1 |        143        1.43       43.95
          2 |        152        1.52       45.47
          3 |         34        0.34       45.81
          4 |          6        0.06       45.87
          6 |      1,576       15.76       61.63
          . |      3,837       38.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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