Frequencies for first 10,000 rows of drink variable in natl1998 dataset :

    Average |
  Number of |
 Drinks Per |
       Week |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,939       99.39       99.39
          1 |         27        0.27       99.66
          2 |          9        0.09       99.75
          3 |          4        0.04       99.79
          4 |          3        0.03       99.82
          5 |          1        0.01       99.83
          6 |          1        0.01       99.84
          8 |          1        0.01       99.85
         12 |          1        0.01       99.86
         21 |          1        0.01       99.87
         99 |         13        0.13      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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