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

      ROUTE |
    SIGNING |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,146       11.46       11.46
          2 |      1,469       14.69       26.15
          3 |      2,592       25.92       52.07
          4 |      1,886       18.86       70.93
          5 |         59        0.59       71.52
          6 |      2,751       27.51       99.03
          8 |         75        0.75       99.78
          9 |         22        0.22      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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