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

RELATION TO |
 TRAFFICWAY |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,767       57.67       57.67
          2 |      1,095       10.95       68.62
          3 |        468        4.68       73.30
          4 |      1,817       18.17       91.47
          5 |        202        2.02       93.49
          6 |        539        5.39       98.88
          7 |         41        0.41       99.29
          8 |         30        0.30       99.59
         10 |         10        0.10       99.69
         11 |          2        0.02       99.71
         99 |         29        0.29      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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