Frequencies for urspa variable in impact2013 dataset :

   Urban or |
      Rural |
designation |
   based on |
    payment |
       CBSA |      Freq.     Percent        Cum.
------------+-----------------------------------
     LURBAN |      1,418       40.51       40.51
     OURBAN |      1,134       32.40       72.91
      RURAL |        948       27.09      100.00
------------+-----------------------------------
      Total |      3,500      100.00

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