Frequencies for first 10,000 rows of towaway variable in vehicle dataset :

     MANNOR |
    LEAVING |
      SCENE |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,461       14.61       14.61
          2 |      8,322       83.22       97.83
          3 |         56        0.56       98.39
          9 |        161        1.61      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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