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

      ROUTE |
    SIGNING |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,310       13.10       13.10
          2 |      1,403       14.03       27.13
          3 |      2,522       25.22       52.35
          4 |      1,914       19.14       71.49
          5 |         22        0.22       71.71
          6 |      2,546       25.46       97.17
          7 |         17        0.17       97.34
          8 |        193        1.93       99.27
          9 |         73        0.73      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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