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

      ROUTE |
    SIGNING |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,350       13.50       13.50
          2 |      1,300       13.00       26.50
          3 |      2,698       26.98       53.48
          4 |      2,146       21.46       74.94
          5 |         10        0.10       75.04
          6 |      2,329       23.29       98.33
          7 |          7        0.07       98.40
          8 |         80        0.80       99.20
          9 |         80        0.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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