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

    ALCOHOL |
DETERMINATI |
         ON |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        613        6.13        6.13
          2 |         64        0.64        6.77
          3 |         73        0.73        7.50
          4 |          4        0.04        7.54
          5 |        693        6.93       14.47
          8 |        122        1.22       15.69
          9 |      8,431       84.31      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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