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

RELATION TO |
    ROADWAY |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,341       63.41       63.41
          2 |        530        5.30       68.71
          3 |        344        3.44       72.15
          4 |      1,158       11.58       83.73
          5 |        116        1.16       84.89
          6 |      1,449       14.49       99.38
          7 |          9        0.09       99.47
          8 |         30        0.30       99.77
          9 |         23        0.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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