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

    Roadway |
       Flow |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,469       14.69       14.69
          2 |        299        2.99       17.68
          3 |      1,004       10.04       27.72
          4 |      7,009       70.09       97.81
          5 |        143        1.43       99.24
          9 |         76        0.76      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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