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

      ROUTE |
    SIGNING |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,343       13.43       13.43
          2 |      1,571       15.71       29.14
          3 |      2,714       27.14       56.28
          4 |      1,710       17.10       73.38
          5 |         83        0.83       74.21
          6 |      2,102       21.02       95.23
          7 |         12        0.12       95.35
          8 |        451        4.51       99.86
          9 |         14        0.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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