Frequencies for first 10,000 rows of cigar variable in natl1999 dataset :

    Average |
  Number of |
 Cigarettes |
    Per Day |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,761       87.61       87.61
          1 |         25        0.25       87.86
          2 |         55        0.55       88.41
          3 |         61        0.61       89.02
          4 |         50        0.50       89.52
          5 |        108        1.08       90.60
          6 |         40        0.40       91.00
          7 |         22        0.22       91.22
          8 |         20        0.20       91.42
          9 |          3        0.03       91.45
         10 |        431        4.31       95.76
         12 |         21        0.21       95.97
         13 |          2        0.02       95.99
         14 |          2        0.02       96.01
         15 |         52        0.52       96.53
         16 |          4        0.04       96.57
         17 |          1        0.01       96.58
         20 |        276        2.76       99.34
         21 |          2        0.02       99.36
         22 |          1        0.01       99.37
         24 |          1        0.01       99.38
         25 |          2        0.02       99.40
         29 |          1        0.01       99.41
         30 |         31        0.31       99.72
         35 |          1        0.01       99.73
         40 |          9        0.09       99.82
         45 |          1        0.01       99.83
         60 |          1        0.01       99.84
         99 |         16        0.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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