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

Relation to |
    Roadway |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,132       61.32       61.32
          2 |        543        5.43       66.75
          3 |        406        4.06       70.81
          4 |      1,428       14.28       85.09
          5 |        133        1.33       86.42
          6 |      1,289       12.89       99.31
          7 |         19        0.19       99.50
          8 |         35        0.35       99.85
          9 |         15        0.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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