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

    Roadway |
       Flow |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,555       15.55       15.55
          2 |        174        1.74       17.29
          3 |        737        7.37       24.66
          4 |      7,268       72.68       97.34
          5 |        130        1.30       98.64
          9 |        136        1.36      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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