Frequencies for first 10,000 rows of cigar variable in natlterr1999 dataset :

    Average |
  Number of |
 Cigarettes |
    Per Day |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,886       98.86       98.86
          1 |          5        0.05       98.91
          2 |         11        0.11       99.02
          3 |          9        0.09       99.11
          4 |          5        0.05       99.16
          5 |         12        0.12       99.28
          6 |          9        0.09       99.37
          7 |          3        0.03       99.40
          8 |          2        0.02       99.42
          9 |          1        0.01       99.43
         10 |         27        0.27       99.70
         12 |          1        0.01       99.71
         15 |          3        0.03       99.74
         20 |         22        0.22       99.96
         30 |          2        0.02       99.98
         99 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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