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

      ROUTE |
    SIGNING |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,194       11.94       11.94
          2 |      1,376       13.76       25.70
          3 |      2,523       25.23       50.93
          4 |      1,947       19.47       70.40
          5 |         37        0.37       70.77
          6 |      2,840       28.40       99.17
          8 |         76        0.76       99.93
          9 |          7        0.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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