Frequencies for profile variable in accident dataset :

    Roadway |
    Profile |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        513       89.84       89.84
          2 |         54        9.46       99.30
          3 |          3        0.53       99.82
          9 |          1        0.18      100.00
------------+-----------------------------------
      Total |        571      100.00

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