Frequencies for first 10,000 rows of fire_exp variable in vehicle dataset :

       Fire |
 Occurrence |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,725       97.25       97.25
          1 |        275        2.75      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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