Frequencies for first 10,000 rows of cigar variable in linkco1991us_num dataset :

    Average |
  Number of |
 Cigarettes |
    Per Day |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,194       41.94       41.94
          1 |         32        0.32       42.26
          2 |         38        0.38       42.64
          3 |         49        0.49       43.13
          4 |         34        0.34       43.47
          5 |        101        1.01       44.48
          6 |         37        0.37       44.85
          7 |         13        0.13       44.98
          8 |         13        0.13       45.11
          9 |          3        0.03       45.14
         10 |        365        3.65       48.79
         11 |          3        0.03       48.82
         12 |          8        0.08       48.90
         13 |          2        0.02       48.92
         14 |          1        0.01       48.93
         15 |         34        0.34       49.27
         16 |          1        0.01       49.28
         18 |          3        0.03       49.31
         20 |        325        3.25       52.56
         24 |          1        0.01       52.57
         25 |          4        0.04       52.61
         30 |         41        0.41       53.02
         35 |          1        0.01       53.03
         36 |          1        0.01       53.04
         40 |         22        0.22       53.26
         60 |          2        0.02       53.28
         99 |      4,672       46.72      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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