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

Relation to |
   Junction |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      7,121       71.21       71.21
          2 |      1,728       17.28       88.49
          3 |        607        6.07       94.56
          4 |        230        2.30       96.86
          5 |        158        1.58       98.44
          6 |         41        0.41       98.85
          7 |         96        0.96       99.81
          8 |          3        0.03       99.84
          9 |         16        0.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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