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

    ROADWAY |
    PROFILE |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      7,586       75.86       75.86
          2 |      2,048       20.48       96.34
          3 |         97        0.97       97.31
          4 |         22        0.22       97.53
          9 |        247        2.47      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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