Frequencies for pfire variable in parkwork dataset :

       fire |
 occurrence |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,084       99.54       99.54
          1 |          5        0.46      100.00
------------+-----------------------------------
      Total |      1,089      100.00

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