Frequencies for first 10,000 rows of cigar variable in natlterr1997 dataset :

    Average |
  Number of |
 Cigarettes |
    Per Day |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,892       98.92       98.92
          1 |          7        0.07       98.99
          2 |         10        0.10       99.09
          3 |          4        0.04       99.13
          4 |          4        0.04       99.17
          5 |          8        0.08       99.25
          6 |          6        0.06       99.31
          7 |          1        0.01       99.32
          8 |          5        0.05       99.37
          9 |          1        0.01       99.38
         10 |         25        0.25       99.63
         12 |          2        0.02       99.65
         13 |          1        0.01       99.66
         14 |          2        0.02       99.68
         15 |          4        0.04       99.72
         18 |          1        0.01       99.73
         20 |         16        0.16       99.89
         21 |          2        0.02       99.91
         40 |          4        0.04       99.95
         45 |          1        0.01       99.96
         60 |          1        0.01       99.97
         80 |          1        0.01       99.98
         99 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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