Frequencies for first 10,000 rows of drunk_dr variable in accident dataset :

   Drinking |
    Drivers |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,465       54.65       54.65
          1 |      4,209       42.09       96.74
          2 |        320        3.20       99.94
          3 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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