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

      ROUTE |
    SIGNING |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,322       13.22       13.22
          2 |      1,574       15.74       28.96
          3 |      2,557       25.57       54.53
          4 |      1,723       17.23       71.76
          5 |         74        0.74       72.50
          6 |      2,275       22.75       95.25
          7 |         15        0.15       95.40
          8 |        431        4.31       99.71
          9 |         29        0.29      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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