Frequencies for drinking variable in person dataset :

    Alcohol |
Involvement |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,143       86.46       86.46
          1 |        179       13.54      100.00
------------+-----------------------------------
      Total |      1,322      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016