Frequencies for first 10,000 rows of drink variable in natl1999 dataset :

    Average |
  Number of |
 Drinks Per |
       Week |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,936       99.36       99.36
          1 |         29        0.29       99.65
          2 |         11        0.11       99.76
          3 |          7        0.07       99.83
          4 |          1        0.01       99.84
          5 |          1        0.01       99.85
          6 |          1        0.01       99.86
          9 |          1        0.01       99.87
         10 |          1        0.01       99.88
         12 |          1        0.01       99.89
         99 |         11        0.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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