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

    Roadway |
       Flow |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,459       14.59       14.59
          2 |        447        4.47       19.06
          3 |      1,208       12.08       31.14
          4 |      6,549       65.49       96.63
          5 |         83        0.83       97.46
          9 |        254        2.54      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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