Frequencies for urgeo variable in impact1998 dataset :

Pre-Reclass |
  ification |
Urban/Rural |
   Location |      Freq.     Percent        Cum.
------------+-----------------------------------
     LURBAN |      1,618       31.22       31.22
     OURBAN |      1,281       24.72       55.94
      RURAL |      2,283       44.06      100.00
------------+-----------------------------------
      Total |      5,182      100.00

by Jean Roth , jroth@nber.org , 17 Mar 2016