Frequencies for drunk_dr variable in accident dataset :

   Drinking |
    Drivers |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        383       78.32       78.32
          1 |        101       20.65       98.98
          2 |          5        1.02      100.00
------------+-----------------------------------
      Total |        489      100.00

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