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

      ROUTE |
    SIGNING |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,454       14.54       14.54
          2 |      1,280       12.80       27.34
          3 |      2,515       25.15       52.49
          4 |      1,924       19.24       71.73
          5 |         49        0.49       72.22
          6 |      2,461       24.61       96.83
          7 |         23        0.23       97.06
          8 |        201        2.01       99.07
          9 |         93        0.93      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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