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

      route |
    signing |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,207       12.07       12.07
          2 |      1,316       13.16       25.23
          3 |      2,682       26.82       52.05
          4 |      1,489       14.89       66.94
          5 |        161        1.61       68.55
          6 |      2,886       28.86       97.41
          7 |         17        0.17       97.58
          8 |        201        2.01       99.59
          9 |         41        0.41      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016