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

    ROADWAY |
  ALIGNMENT |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      7,578       75.78       75.78
          2 |      2,316       23.16       98.94
          9 |        106        1.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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