Frequencies for first 10,000 rows of reljct1 variable in accident dataset :

Relation to |
   Junction |
     Within |
Interchange |
       Area |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,638       96.38       96.38
          1 |        358        3.58       99.96
          8 |          1        0.01       99.97
          9 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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