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

Relation to |
    Roadway |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,196       61.96       61.96
          2 |        763        7.63       69.59
          3 |        326        3.26       72.85
          4 |      1,345       13.45       86.30
          5 |        379        3.79       90.09
          6 |        914        9.14       99.23
          7 |          9        0.09       99.32
          8 |         40        0.40       99.72
          9 |         28        0.28      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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