Frequencies for urspa variable in impact2014 dataset :

   Urban or |
      Rural |
designation |
   based on |
    payment |
       CBSA |      Freq.     Percent        Cum.
------------+-----------------------------------
     LURBAN |      1,415       40.63       40.63
     OURBAN |      1,121       32.18       72.81
      RURAL |        947       27.19      100.00
------------+-----------------------------------
      Total |      3,483      100.00

by Jean Roth , jroth@nber.org , 16 Dec 2016