Frequencies for rel_junc variable in accident dataset :

Relation to |
   Junction |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        414       84.66       84.66
          2 |         66       13.50       98.16
          3 |          3        0.61       98.77
          4 |          1        0.20       98.98
          5 |          2        0.41       99.39
          6 |          3        0.61      100.00
------------+-----------------------------------
      Total |        489      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016