Frequencies for urspa variable in impact2016 dataset :

   Urban or |
      Rural |
designation |
   based on |
    payment |
       CBSA |      Freq.     Percent        Cum.
------------+-----------------------------------
     LURBAN |      1,422       41.25       41.25
     OURBAN |      1,097       31.82       73.08
      RURAL |        928       26.92      100.00
------------+-----------------------------------
      Total |      3,447      100.00

by Jean Roth , jroth@nber.org , 30 Aug 2017