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

      ROUTE |
    SIGNING |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,485       14.85       14.85
          2 |      1,395       13.95       28.80
          3 |      2,558       25.58       54.38
          4 |      1,661       16.61       70.99
          5 |         52        0.52       71.51
          6 |      2,282       22.82       94.33
          7 |         15        0.15       94.48
          8 |        420        4.20       98.68
          9 |        132        1.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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