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

   Drinking |
    Drivers |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,722       57.22       57.22
          1 |      3,957       39.57       96.79
          2 |        312        3.12       99.91
          3 |          8        0.08       99.99
          4 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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