Frequencies for urspa variable in impact2009 dataset :

   Urban or |
      Rural |
designation |
   based on |
    payment |
       CBSA |      Freq.     Percent        Cum.
------------+-----------------------------------
     LURBAN |      1,465       40.48       40.48
     OURBAN |      1,170       32.33       72.81
      RURAL |        984       27.19      100.00
------------+-----------------------------------
      Total |      3,619      100.00

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