Frequencies for first 10,000 rows of cigar variable in natl1997 dataset :

    Average |
  Number of |
 Cigarettes |
    Per Day |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,800       88.00       88.00
          1 |         35        0.35       88.35
          2 |         52        0.52       88.87
          3 |         57        0.57       89.44
          4 |         33        0.33       89.77
          5 |         95        0.95       90.72
          6 |         45        0.45       91.17
          7 |         21        0.21       91.38
          8 |         14        0.14       91.52
          9 |          5        0.05       91.57
         10 |        386        3.86       95.43
         12 |         13        0.13       95.56
         13 |          1        0.01       95.57
         14 |          1        0.01       95.58
         15 |         47        0.47       96.05
         16 |          2        0.02       96.07
         17 |          1        0.01       96.08
         18 |          2        0.02       96.10
         20 |        266        2.66       98.76
         21 |          2        0.02       98.78
         23 |          1        0.01       98.79
         24 |          5        0.05       98.84
         25 |         15        0.15       98.99
         28 |          1        0.01       99.00
         30 |         38        0.38       99.38
         35 |          2        0.02       99.40
         40 |         13        0.13       99.53
         99 |         47        0.47      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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