Frequencies for first 10,000 rows of cigar variable in natl1993 dataset :

    Average |
  Number of |
 Cigarettes |
    Per Day |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,507       85.07       85.07
          1 |         27        0.27       85.34
          2 |         49        0.49       85.83
          3 |         51        0.51       86.34
          4 |         48        0.48       86.82
          5 |        109        1.09       87.91
          6 |         42        0.42       88.33
          7 |         16        0.16       88.49
          8 |         17        0.17       88.66
          9 |          2        0.02       88.68
         10 |        498        4.98       93.66
         12 |         12        0.12       93.78
         13 |          1        0.01       93.79
         14 |          3        0.03       93.82
         15 |         72        0.72       94.54
         16 |          1        0.01       94.55
         20 |        406        4.06       98.61
         22 |          2        0.02       98.63
         24 |          2        0.02       98.65
         25 |         12        0.12       98.77
         30 |         39        0.39       99.16
         35 |          1        0.01       99.17
         40 |         21        0.21       99.38
         50 |          1        0.01       99.39
         90 |          1        0.01       99.40
         99 |         60        0.60      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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