Frequencies for first 10,000 rows of drink variable in natlterr1994 dataset :

    Average |
  Number of |
 Drinks Per |
       Week |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,989       99.89       99.89
          1 |          3        0.03       99.92
          2 |          1        0.01       99.93
          3 |          1        0.01       99.94
          4 |          1        0.01       99.95
          5 |          1        0.01       99.96
         12 |          2        0.02       99.98
         99 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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