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

      ROUTE |
    SIGNING |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,248       12.48       12.48
          2 |      1,488       14.88       27.36
          3 |      2,523       25.23       52.59
          4 |      1,836       18.36       70.95
          5 |         78        0.78       71.73
          6 |      2,726       27.26       98.99
          8 |         77        0.77       99.76
          9 |         24        0.24      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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