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

      ROUTE |
    SIGNING |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,501       15.01       15.01
          2 |      1,504       15.04       30.05
          3 |      2,532       25.32       55.37
          4 |      1,554       15.54       70.91
          5 |         59        0.59       71.50
          6 |      2,213       22.13       93.63
          7 |          9        0.09       93.72
          8 |        602        6.02       99.74
          9 |         26        0.26      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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