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

    Roadway |
  Alignment |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      7,220       72.20       72.20
          2 |      2,708       27.08       99.28
          9 |         72        0.72      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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