Frequencies for route variable in accident dataset :

      Route |
    Signing |      Freq.     Percent        Cum.
------------+-----------------------------------
          3 |          5        0.88        0.88
          4 |        498       87.22       88.09
          5 |         18        3.15       91.24
          6 |         48        8.41       99.65
          8 |          1        0.18       99.82
          9 |          1        0.18      100.00
------------+-----------------------------------
      Total |        571      100.00

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