Frequencies for first 10,000 rows of alc_det variable in person dataset :

    ALCOHOL |
DETERMINATI |
         ON |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        741        7.41        7.41
          2 |         51        0.51        7.92
          3 |         25        0.25        8.17
          4 |         32        0.32        8.49
          5 |        748        7.48       15.97
          8 |         90        0.90       16.87
          9 |      8,313       83.13      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016