Frequencies for casetagroup variable in impact2017 dataset :

DRG Grouper |
Version for |
     caseta |      Freq.     Percent        Cum.
------------+-----------------------------------
         34 |      3,409      100.00      100.00
------------+-----------------------------------
      Total |      3,409      100.00

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