Frequencies for first 10,000 rows of cigar variable in natlterr1996 dataset :

    Average |
  Number of |
 Cigarettes |
    Per Day |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,886       98.86       98.86
          1 |          6        0.06       98.92
          2 |         11        0.11       99.03
          3 |          7        0.07       99.10
          4 |          5        0.05       99.15
          5 |         14        0.14       99.29
          6 |          2        0.02       99.31
          7 |          3        0.03       99.34
          8 |          4        0.04       99.38
         10 |         21        0.21       99.59
         14 |          3        0.03       99.62
         15 |          1        0.01       99.63
         18 |          1        0.01       99.64
         20 |         25        0.25       99.89
         24 |          4        0.04       99.93
         25 |          1        0.01       99.94
         30 |          2        0.02       99.96
         40 |          2        0.02       99.98
         60 |          1        0.01       99.99
         99 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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