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

      ROUTE |
    SIGNING |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,457       14.57       14.57
          2 |      1,394       13.94       28.51
          3 |      2,566       25.66       54.17
          4 |      1,822       18.22       72.39
          5 |         82        0.82       73.21
          6 |      2,212       22.12       95.33
          7 |         11        0.11       95.44
          8 |        424        4.24       99.68
          9 |         32        0.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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